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Literatur_Sokolski_Opening - compiled by Peter Markus Steiner (in German)



Some recent games
(new games added 2019-04-02)
     

Rudolf DIENER

of Germany



Flag and map source: https://www.cia.gov/library/publications/the-world-factbook/

    
    
    (2019-04-01)
    (All annotations below by Fritz)
    (Games' source: Marek's 1.b4 database)
    
    
    
    [Event "corr SOK-98-129"]
    [Site "?"]
    [Date "1999.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Wartig, Wolfgang"]
    [Result "1-0"]
    [PlyCount "69"]
    [EventDate "1999.??.??"]
    
    1. b4 a5 2. b5 c5 (2... Nf6 3. Nf3 $11) 3. c4 (3. e4 Nf6 4. e5 Nd5 $14) 3... d5
    4. cxd5 Qxd5 5. Nc3 Qd6 6. Qc2 Nf6 7. Ba3 b6 (7... e5 8. Nf3 $11) 8. e3 (8. Nf3
    Bb7 $11) 8... Bb7 (8... e5 9. Nf3 $11) 9. d4 e5 10. dxc5 bxc5 11. Rd1 Qe7 (
    11... Qe6 12. Nf3 $11) 12. b6 (12. Nf3 Nbd7 $14) 12... Qe6 $11 13. Na4 (13. Qb3
    Qxb3 14. axb3 Nbd7 $11) 13... Nbd7 14. Bc4 (14. Bxc5 $143 Rc8 (14... Nxc5 $6
    15. Nxc5 Qxb6 16. Rb1 Qxc5 17. Qxc5 Bxc5 18. Rxb7 $11) 15. Bc4 Qc6 $19) 14...
    Qg4 15. f3 Qh4+ 16. g3 Qg5 17. Ke2 (17. Qb3 Qg6 $11) 17... Qh5 18. Bb5 (18. Kf2
    $5 $11) 18... e4 $17 19. Kf1 (19. Rf1 exf3+ 20. Nxf3 Bd6 $17) 19... exf3 20. e4
    O-O-O 21. Rd4 $2 (21. Bd3 $142 $17) 21... Bc6 $5 22. Bxc6 cxd4 23. Bd5+ Nc5 24.
    Nxc5 Nxd5 25. exd5 Qxd5 26. Ne6+ Kd7 27. Nxf8+ (27. Bxf8 Kxe6 (27... Qxe6 $2
    28. Bxg7 Rhg8 29. Qc7+ Ke8 30. b7 Rxg7 31. b8=Q Rxb8 32. Qxb8+ Ke7 33. Qa7+ Ke8
    34. Qxd4 $18 (34. Nxf3 $6 Qc4+ 35. Kg1 Qc1+ 36. Kg2 Qc2+ 37. Kh3 Qf5+ 38. Kg2
    Qc2+ 39. Kh3 Qf5+ 40. Kg2 Qc2+ $11)) 28. Bxg7 Rhg8 $11) 27... Rhxf8 28. Bxf8
    Rxf8 29. Kf2 (29. Qc7+ Ke6 30. b7 f2 31. Qc8+ Qd7 32. Qxf8 fxg1=Q+ 33. Rxg1
    Qxb7 34. Qe8+ Kf5 35. g4+ Kf4 $18) 29... d3 (29... Rb8 30. Qc7+ Ke6 31. Qxb8
    Qxa2+ 32. Kxf3 Qd5+ 33. Kf2 Qxh1 34. b7 Qxh2+ 35. Kf1 $18) 30. Qc7+ Ke6 31.
    Nxf3 Qxa2+ 32. Ke3 Qe2+ $4 (32... Re8 33. Qc5 Qc2 34. Qxc2 dxc2 $18) 33. Kf4
    g5+ (33... Kf6 34. Qc3+ Kg6 35. Qc5 $18) 34. Nxg5+ Kd5 (34... Kf6 35. Nxh7+ Kg7
    36. Nxf8 Qd2+ 37. Ke4 Qg2+ 38. Kd4 Qxh1 $18) 35. Qd7+ (35. Qd7+ Kc4 36. Qc6+
    Kb3 37. Qb5+ Ka2 38. Qxa5+ Kb3 39. Rb1+ Kc2 40. Qa2+ Kc3 41. Qa3+ Kc4 42. Rb4+
    Kd5 43. Rb5+ Kc6 44. Rc5+ Kd7 45. Rc7+ Kd8 46. Qa8#) 1-0
    
    [Event "corr ICCF EU-M-722"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Kunze, Markus"]
    [Result "1-0"]
    [PlyCount "49"]
    [EventDate "1985.??.??"]
    
    1. b4 a5 2. b5 e5 3. Bb2 d6 4. e3 Nd7 5. d4 (5. a4
    Ngf6 6. Nc3 g6 7. Nf3 Bg7 8. g4 Nxg4 9. Bh3 Ngf6 10. Qe2 Nf8 11. Bxc8 Qxc8 12.
    Rg1 b6 13. d4 e4 14. Nd2 d5 15. Rg5 Qe6 16. Ba3 h6 17. Rg1 g5 18. Nd1 Ng6 19.
    Rc1 Bf8 {dtpwaldi-kingghidorah (1825)/kurnik 2011/0-1 (46)}) 5... Ngf6 6. Nf3
    $146 (6. c4 g6 7. Nf3 Qe7 8. Be2 Bg7 9. O-O e4 10. Nfd2 O-O 11. Nc3 c5 12. dxc5
    Nxc5 13. Nb3 Be6 14. Qc2 Nfd7 15. Rfd1 Rfd8 16. Rab1 f5 17. Ba3 Be5 18. Qd2 a4
    19. Nxc5 Nxc5 20. b6 Qg5 {
    Antal,S (2330)-Ladanyi,T (2215)/HUN-chT2 1999/1/2-1/2 (37)}) 6... e4 7. Nfd2 d5
    8. c4 dxc4 9. Bxc4 Bb4 10. Bc3 Qe7 11. a3 Bd6 12. Bb2 b6 13. Nc3 Bb7 14. Bb3
    O-O 15. g4 g5 (15... h6 $142 $5 $11) 16. h4 $16 h6 17. hxg5 hxg5 18. Nc4 Kg7
    19. Qe2 Rh8 20. O-O-O Rxh1 21. Rxh1 Rh8 22. Rxh8 Kxh8 23. Nxd6 cxd6 24. Qc4 d5
    25. Qc7 (25. Qc7 Ba8 26. Na4 $16) 1-0
    
    [Event "corr"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Klugert, Eberhard"]
    [Result "1-0"]
    [PlyCount "85"]
    [EventDate "1985.??.??"]
    
    1. b4 a5 2. b5 Nf6 3. Bb2 d6 4. d4 (
    4. Bxf6 exf6 5. Nf3 d5 $11) 4... b6 (4... d5 5. Nf3 $11) 5. c4 (5. Nf3 e6 $11)
    5... Bf5 (5... Bb7 6. e3 $11) 6. e3 (6. f3 Bd7 $14) 6... c6 $11 7. Nc3 e6 8.
    Nf3 Be7 (8... cxb5 9. Nxb5 d5 10. Rc1 $11) 9. Be2 (9. bxc6 Nxc6 10. d5 Nb4 $16)
    9... O-O 10. O-O Qc7 (10... cxb5 11. Nxb5 Ne4 12. d5 $14) 11. Nd2 (11. Nh4 Be4
    $16) 11... Nbd7 (11... d5 $142 $5 $11) 12. g4 Bg6 13. g5 (13. bxc6 $5 Nb8 14.
    d5 $16) 13... Ne8 $14 14. bxc6 Nb8 15. f4 (15. Bf3 Nxc6 16. d5 Ne5 17. dxe6
    Nxf3+ 18. Qxf3 Qd8 $14) 15... Nxc6 $11 16. Bf3 Rb8 (16... Rc8 17. Nb5 Qd7 18.
    e4 $11) 17. Nb5 $14 Qd7 18. e4 Nb4 19. Bc3 (19. Qe2 f5 $14) 19... Nd3 (19... d5
    $5 $11) 20. Be2 $14 Nb4 21. Bxb4 (21. Qb1 d5 22. a3 dxc4 23. axb4 Qxb5 24. bxa5
    Nd6 $14) 21... axb4 22. Qb1 (22. Bg4 f5 23. gxf6 Nxf6 $11) 22... d5 (22... Nc7
    23. Nxc7 (23. Qxb4 $143 d5 24. Qc3 Nxb5 25. cxb5 dxe4 $15) 23... Qxc7 24. f5 (
    24. Qxb4 $143 d5 25. Qb3 dxe4 $15) 24... Bxg5 25. Qd3 (25. fxg6 $143 Bxd2 26.
    gxh7+ Kxh7 $17) (25. Qxb4 $6 Be3+ 26. Kg2 Bxd4 $14) 25... exf5 26. exf5 $16)
    23. f5 (23. cxd5 exd5 24. f5 Bh5 25. Bxh5 Bxg5 26. Qxb4 Be3+ 27. Kg2 Bxd2 28.
    Qxd2 Qxb5 $14) 23... exf5 (23... dxc4 24. Bxc4 exf5 25. exf5 $11) 24. exf5 $14
    {White gets in control} Bxg5 25. fxg6 Be3+ 26. Kg2 Bxd2 27. Qc2 Bg5 (27... Bc3
    $5 28. gxh7+ Kh8 29. Nxc3 bxc3 30. Qxc3 Rc8 $11) 28. gxh7+ $16 Kh8 29. Rf5 Bh6
    (29... Rc8 30. Qb1 Be7 31. Rxd5 $16) 30. Rxd5 $18 Qe6 31. Re5 Qc6+ 32. Bf3 Qd7
    (32... Qf6 33. Rb1 $18) 33. Rae1 g6 (33... Qd8 34. Qb3 $18) 34. Rd5 Qc8 35. Re7
    Kxh7 (35... Rb7 36. Na7 Qb8 37. Nc6 $18) 36. Na7 Qa6 37. Nc6 (37. Rdd7 $142 Ng7
    38. Nc6 $18) 37... Rc8 $4 (37... Rb7 $142 38. Nxb4 Qa7 $18) 38. Ra7 Qxa7 39.
    Nxa7 Rc7 40. Nb5 Re7 (40... Rc8 41. Qb3 $18) 41. Nd6 (41. Qb2 Nc7 42. Nxc7 Rxc7
    43. Qxb4 Rfc8 $18) 41... Nf6 (41... Nc7 42. Rh5 Rd7 43. c5 bxc5 44. dxc5 $18)
    42. Rb5 Bf4 (42... Re6 43. c5 bxc5 44. dxc5 $18) 43. Rxb6 (43. Rxb6 Re6 44. c5
    $18) 1-0
    
    [Event "DDR corr"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Schwarz, Hans"]
    [Result "1/2-1/2"]
    [PlyCount "85"]
    [EventDate "1985.??.??"]
    
    1. b4 a5 2. b5 Nf6 3. Bb2 d6 4. d4 Nbd7 (4... b6 5. c4 Bf5 6. e3 c6 7. Nc3 e6
    8. Nf3 Be7 9. Be2 O-O 10. O-O Qc7 11. Nd2 Nbd7 12. g4 Bg6 13. g5 Ne8 14. bxc6
    Nb8 15. f4 Nxc6 16. Bf3 Rb8 17. Nb5 Qd7 18. e4 Nb4 19. Bc3 {
    Diener,R-Klugert,E/corr 1985/1-0 (43)}) 5. e3 e5 $146 (5... g6 6. Nf3 Bg7 7. c4
    O-O 8. Be2 e5 (8... c5 9. Nbd2 {1/2-1/2 Bigalke,A-Dinckel,J/Hamburg 1999}) 9.
    Nc3 Re8 10. O-O e4 11. Nd2 Nf8 12. Qc2 Bf5 13. h3 h5 14. a4 Ne6 15. Nd5 c6 16.
    Nxf6+ Qxf6 17. Rfb1 Qh4 18. bxc6 bxc6 19. Nb3 Qg5 20. Kh1 {
    Wolf-Tiemann/Privatpartie 1998/[Fritz 6 (1s)] (31)}) 6. dxe5 dxe5 7. Nf3 Bd6 8.
    Bc4 Nb6 9. Nbd2 Qe7 10. O-O Bg4 11. Be2 Rd8 12. h3 Bxf3 13. Bxf3 $2 (13. Nxf3
    Na4 14. Qc1 e4 15. Bxf6 Qxf6 $15) 13... Bb4 $4 (13... Na4 $142 14. Bxb7 Nxb2
    15. Bc6+ Nd7 $19) 14. c3 $11 Nc4 15. cxb4 (15. Nxc4 Rxd1 16. Rfxd1 e4 17. cxb4
    exf3 18. Nxa5 Ne4 (18... Qxb4 19. Bxf6 gxf6 20. Nxb7 $16) 19. gxf3 Qg5+ 20. Kh2
    Nxf2 21. Nxb7 Nxd1 22. Rxd1 Qxe3 23. Rd8+ Ke7 24. Rxh8 Qf2+ 25. Kh1 Qxf3+ (
    25... Qxb2 $6 26. Rc8 $19) 26. Kg1 Qd1+ (26... Qxb7 $143 27. Bxg7 Qa7+ 28. Kh1
    $19) 27. Kf2 Qd2+ 28. Kf3 Qxb2 $19) 15... Nxd2 16. bxa5 e4 17. Bxf6 Qxf6 18.
    Bxe4 Nxe4 19. Qc2 Qe7 20. Rfc1 $2 (20. a6 $5 $15) 20... Rd7 21. a6 bxa6 22.
    bxa6 O-O 23. Rab1 $2 (23. Rd1 $142 Rxd1+ 24. Rxd1 $17) 23... Rd2 24. Qxc7 (24.
    Qc6 Nxf2 25. Qf3 $19) 24... Qf6 (24... Rd1+ $142 $1 25. Kh2 Qxc7+ 26. Rxc7 Rxb1
    $19) 25. Qf4 $15 Qxf4 (25... Nxf2 $143 26. Qxf6 gxf6 27. a7 Nxh3+ 28. gxh3 $16)
    (25... Rxa2 $6 26. Qxe4 Qxf2+ 27. Kh2 Rxa6 28. Rc7 $11) 26. exf4 Rxa2 (26...
    Rxf2 27. a7 f5 28. a4 $18) (26... Nxf2 27. a7 f5 28. Rc7 Rxa2 29. Rbb7 $18) 27.
    Rb6 (27. Ra1 $5 Rxa1 28. Rxa1 $15) 27... h6 (27... Rxf2 $6 28. a7 Ra2 29. Rb8
    $11) 28. Rc7 Ra8 (28... Rxf2 29. a7 Ra2 30. Rb8 $16) (28... Nxf2 $6 29. a7 Kh7
    30. Rcb7 Nxh3+ 31. gxh3 $11) 29. f3 Nf6 30. Rbb7 R2xa6 31. Rxf7 Ne8 32. Rfe7
    Rf6 33. Rb4 Rf7 34. Re2 Nf6 35. g3 Nh5 36. Kf2 Ra3 37. Rb5 g6 38. h4 Rfa7 39.
    f5 Rf7 40. g4 Nf4 41. Re8+ Kg7 42. Kg3 Ra4 43. Re4 1/2-1/2
    
    [Event "corr DDR"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Leu, Manfred"]
    [Result "1-0"]
    [PlyCount "113"]
    [EventDate "1985.??.??"]
    
    1. b4 a5 2. b5 Nf6 3. Bb2 d6 4. e3 e5 5. c4 g6 6. Nf3 Bg7 7. d4 exd4 8. Bxd4 (
    8. Nxd4 O-O 9. Nd2 Nbd7 10. Rc1 Nc5 11. Be2 Bd7 12. O-O Re8 13. Qc2 Ng4 14. h3
    Nh6 15. Qb3 Ne4 16. Bf3 f5 17. c5+ d5 18. c6 bxc6 19. Nxc6 Qg5 20. a4 f4 21.
    Bxg7 Kxg7 22. exf4 Qxf4 {
    Fehr,W-van Venetie,K/CiF GT-98-0041A 1998/[Fritz 6 (1s)]/1-0}) (8. Qxd4 O-O 9.
    Be2 Nbd7 10. O-O Nc5 11. Rd1 Bd7 12. Ne1 Na4 13. Bc3 Bf5 14. Rc1 Bxb1 15. Raxb1
    Ne8 {Adam,S-Leu,M/corr 1972}) 8... O-O 9. Bd3 Nbd7 $146 (9... Re8 10. O-O Nbd7
    11. Nc3 c5 12. bxc6 bxc6 13. Rb1 c5 14. Bxf6 Nxf6 15. Bc2 Be6 16. Qe2 Rb8 17.
    Rxb8 Qxb8 18. Qd3 Bf5 19. Qd2 Bg4 20. Rb1 Qd8 21. Ng5 h6 22. Nge4 Nxe4 23. Nxe4
    Bf5 24. Nc3 {orane (2085)-Caissa (1815)/Live Game Caissa's Web 2004/1-0 (60)})
    10. Nbd2 Re8 11. O-O Nh5 12. a4 Nc5 13. Bc2 Bg4 14. h3 Bd7 15. Ra3 Ne6 16. Re1
    Qe7 17. Rd3 Qf8 18. Nb3 Bxd4 19. Nfxd4 b6 20. Qf3 Ng5 21. Qb7 Rac8 22. Nc6
    Nxh3+ (22... Bxh3 $142 $5 23. gxh3 Nf3+ 24. Kf1 Nxe1 25. Kxe1 f5 $16) 23. gxh3
    $18 Bxh3 24. Ncd4 Qe7 25. Nf3 Qf6 26. Nbd4 g5 27. Qd5 h6 28. Rd2 Ng7 29. Kh2
    Be6 30. Nxe6 fxe6 31. Qe4 Nf5 32. Nd4 Nxd4 33. exd4 Re7 34. Qg6+ Qxg6 35. Bxg6
    Kg7 36. Bf5 $1 Rce8 (36... exf5 37. Rxe7+ {Pinning} (37. Rxe7+ {Deflection}))
    37. Bg4 Kg6 38. Kg3 h5 39. Bf3 Rf8 40. Bd5 $1 Rf6 (40... exd5 41. Rxe7 {Pinning
    } (41. Rxe7 {Deflection})) 41. Rde2 Kf7 42. f3 Re8 43. Bc6 Re7 44. Re4 Kg6 45.
    Rh1 Ref7 46. Re3 Re7 47. Be4+ Kh6 48. Re2 h4+ 49. Kg2 Rf4 50. c5 d5 (50... bxc5
    51. dxc5 {Combination}) (50... dxc5 51. dxc5 {Combination}) 51. Bxd5 Rxd4 (
    51... exd5 52. Re5 {Double attack} (52. Rxe7 {Pinning}) (52. Rxe7 {Deflection})
    (52. Re5 {Decoy}) (52. Rxe7 {Clearance})) 52. Rxe6+ Rxe6 53. Bxe6 Rxa4 54. cxb6
    cxb6 55. Rc1 Rb4 56. Rc6 Kg7 57. Rxb6 1-0
    
    [Event "corr ICCF T-375-19-G"]
    [Site "?"]
    [Date "1975.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Wiencek, Tadeusz Robert"]
    [Result "1-0"]
    [PlyCount "71"]
    [EventDate "1975.??.??"]
    
    1. b4 a5 2. b5 Nf6 3. Bb2 d6 4. e3 e5 5. c4 Bf5 6. Nc3 Nbd7 (6... Be7 $5 $11)
    7. Qf3 $14 Be6 8. Qxb7 g6 (8... Nc5 9. Qc6+ Bd7 10. Qf3 $14) 9. g3 (9. d4 Rb8
    10. Qa6 exd4 11. exd4 d5 $16) 9... Bg7 10. Qg2 (10. Qc6 O-O $14) 10... O-O 11.
    Be2 Nc5 (11... a4 12. a3 $14) 12. d4 $16 exd4 13. exd4 Ncd7 14. d5 (14. Nf3 Nb6
    15. d5 Ne4 $16) 14... Bf5 $14 15. g4 Be4 $4 (15... Ne4 16. gxf5 Nxc3 17. fxg6
    fxg6 $11) 16. Nxe4 $18 Nxe4 17. Bxg7 (17. Qxe4 $6 Bxb2 18. Rb1 Re8 $14) 17...
    Kxg7 18. Qxe4 Nc5 19. Qd4+ Kg8 20. Nf3 Re8 21. Kf1 (21. g5 Qe7 22. Qd2 f5 $18)
    21... Re4 22. Qc3 Rxg4 23. Nd2 (23. Re1 Re4 $18) 23... Ne4 24. Nxe4 Rxe4 25.
    Bf3 (25. Rg1 Qh4 26. Rg2 Re5 $18) 25... Re5 (25... Rf4 26. Rc1 $18) 26. Re1
    Rxe1+ 27. Qxe1 f5 (27... Qf6 28. Qe2 $18) 28. Rg1 (28. Qe6+ Kh8 $18) 28... Kf7
    (28... Qh4 29. Qe2 $18) 29. Qe6+ Kf8 30. Bh5 (30. c5 a4 $18) 30... Qe7 $2 (
    30... Qh4 31. Bxg6 Qxc4+ 32. Qe2 Qxe2+ 33. Kxe2 hxg6 34. Rxg6 Re8+ 35. Kd3 Re5
    $16) 31. Qxe7+ Kxe7 32. Bxg6 (32. Bd1 $5 Kf6 $18) 32... hxg6 33. Rxg6 Rh8 34.
    Kg2 (34. Rg7+ Kd8 35. Kg2 Rh4 36. Rg8+ Kd7 $18) 34... Kf7 (34... Rh4 35. Rg7+
    Kd8 36. Rg8+ Ke7 37. Ra8 Rxc4 38. Rxa5 $18) 35. Rg3 Rh4 36. Rc3 (36. Rc3 a4 37.
    c5 $18) 1-0
    
    [Event "corr SOK-87-08"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Stabenow, Juergen"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "73"]
    [EventDate "1988.??.??"]
    
    1. b4 a6 2. e4 e6 3. Bb2 (3. a3 Nf6 (3... Nc6 4. Nc3 (4. Nf3 d5 (4... Nf6 5. e5
    Nd5 6. c4 Nde7 7. Nc3 Nf5 8. d4 d6 9. b5 axb5) (4... Be7 5. Nc3 Nf6 6. e5 Nd5
    7. Nxd5 exd5 8. Bb2 O-O 9. Bd3 d6) (4... h6 5. Bb2 Nf6 6. Bd3 Be7 7. O-O O-O 8.
    Nc3 e5 9. h3 d6) 5. exd5 exd5 6. Bd3 Qe7+ 7. Be2 Nf6 8. O-O Be6 9. Nc3 O-O-O) (
    4. Bb2 Nf6 (4... d5 5. exd5 exd5 6. Nf3 Nf6 7. Nc3 Bd6 8. Bd3 Qe7+ 9. Qe2 Qxe2+
    ) (4... Qg5 5. Nf3 Qg4 6. Bd3 Nf6 7. O-O Nxe4 8. h3 Qf4 9. Nc3 Nf6) 5. e5 Nd5
    6. Nc3 Nxc3 7. Bxc3 d5 8. exd6 cxd6 9. Nf3 e5) 4... d5 (4... Nf6 5. Nf3 d5 6.
    e5 d4 7. Ne2 Ng4 8. Bb2 Ngxe5 9. Nxe5 Nxe5) 5. exd5 exd5 6. Nf3 Nf6 7. Bd3 Qe7+
    8. Be2 d4 9. Na4 Bf5) (3... d5 4. e5 (4. exd5 exd5 (4... Bd6 5. dxe6 Bxe6 6.
    Nf3 Nf6 7. Nc3 O-O 8. Be2 a5 9. b5 Nbd7) (4... Be7 5. dxe6 Bxe6 6. Nf3 Nf6 7.
    Ng5 Bf5 8. Qf3 Qd5 9. Qxd5 Nxd5) 5. Nf3 a5 6. b5 Bd6 7. Nc3 Nf6 8. Qe2+ Be7 9.
    Qd3 O-O) (4. Nc3 dxe4 (4... d4 5. Na4 Nf6 6. Nf3 Nxe4 7. Bd3 f5 8. Bb2 Qd7 9.
    c4 dxc3) (4... a5 5. b5 dxe4 6. Nxe4 Qd4 7. Nc3 Bc5 8. Qe2 Nf6 9. Nf3 Qd6) (
    4... Nc6 5. Nf3 d4 6. Na4 Nf6 7. Bd3 b5 8. e5 Nd5 9. Nc5 Bxc5) (4... Nf6 5.
    exd5 exd5 6. Nf3 Bd6 7. Bd3 Qe7+ 8. Qe2 Qxe2+ 9. Nxe2 a5) 5. Nxe4 Nf6 6. Nxf6+
    Qxf6 7. d4 Nc6 8. Nf3 h6 9. Be3 Bd6) 4... Nh6 (4... Nc6 5. d4 Nge7 6. Nf3 Nf5
    7. Nc3 Be7 8. Be2 h5 9. Qd3 g5) (4... Ne7 5. Nf3 Nbc6 6. d4 Nf5 7. Nc3 Be7 8.
    Be2 h5 9. Qd3 g5) (4... d4 5. Nf3 Nc6 6. Bb2 Nge7 7. c3 Nf5 8. cxd4 Nfxd4 9.
    Bc4 b5) (4... Be7 5. Nf3 Nh6 6. Bb2 O-O 7. Nc3 Nc6 8. Bd3 f6 9. Na4 fxe5) 5.
    Nf3 Nc6 6. d4 Nf5 7. Nc3 Be7 8. Be2 h5 9. Qd3 g5) (3... a5 4. b5 d5 (4... Nf6
    5. e5 Ne4 6. d3 Nc5 7. Nc3 d5 8. exd6 Bxd6 9. d4 Ncd7) (4... b6 5. Nc3 d5 6.
    exd5 exd5 7. Nf3 Nf6 8. Bd3 Bd6 9. O-O O-O) (4... d6 5. Nc3 Nf6 6. Nf3 Nbd7 7.
    d4 Be7 8. Bd3 O-O 9. O-O e5) (4... Be7 5. Nc3 d5 6. d3 dxe4 7. dxe4 Qxd1+ 8.
    Kxd1 Nf6 9. Bf4 Nbd7) 5. exd5 exd5 6. Nf3 Bd6 7. Bd3 Qe7+ 8. Qe2 Nf6 9. Bb2
    Nbd7) (3... Be7 4. Nc3 (4. Nf3 d5 (4... Nc6 5. Nc3 d5 6. exd5 exd5 7. Bd3 Nf6
    8. O-O O-O 9. Bb2 Bg4) (4... Nf6 5. e5 Nd5 6. c4 Nb6 7. d4 d6 8. exd6 cxd6 9.
    Bd3 Qc7) (4... Nh6 5. Bb2 O-O 6. Nc3 Nc6 7. Bd3 d5 8. O-O dxe4 9. Nxe4 f5) (
    4... a5 5. Bb2 Nf6 6. e5 Nd5 7. b5 O-O 8. c4 Nb6 9. Qc2 f5) 5. Nc3 d4 6. Na4
    Nc6 7. Bd3 Nf6 8. O-O Nd7 9. Qe2 b5) (4. Bb2 Nf6 5. Nc3 Nc6 6. Nf3 d5 7. exd5
    exd5 8. Bd3 O-O 9. O-O Bg4) (4. Bd3 d5 (4... Nf6 5. Nf3 d5 6. Nc3 dxe4 7. Nxe4
    Nxe4 8. Bxe4 f5 9. Bd3 Bf6) (4... Nc6 5. Nf3 Nf6 6. Nc3 d5 7. exd5 Nxd5 8. Nxd5
    exd5 9. O-O O-O) (4... a5 5. b5 d5 6. exd5 Nf6 7. Nc3 exd5 8. Nf3 O-O 9. O-O
    Nbd7) (4... c5 5. Bb2 Nf6 6. e5 Nd5 7. Nc3 Nf4 8. Be4 Nc6 9. Nge2 Ng6) 5. exd5
    Nf6 6. dxe6 Bxe6 7. Nc3 a5 8. bxa5 O-O 9. Nf3 Rxa5) 4... Nc6 (4... Nf6 5. Nf3
    O-O 6. e5 Nd5 7. Bb2 Nc6 8. Nxd5 exd5 9. Bd3 d6) (4... d5 5. Nf3 Nc6 6. Bb2 d4
    7. Na4 Nf6 8. Bd3 e5 9. c3 dxc3) (4... a5 5. b5 d5 6. exd5 exd5 7. d4 Nf6 8.
    Bd3 Bd6 9. h3 O-O) 5. Nf3 d5 6. exd5 exd5 7. Bd3 Nf6 8. Bb2 O-O 9. O-O Re8) 4.
    e5 (4. Nc3 d5 (4... Nc6 5. Nf3 d5 6. Bd3 d4 7. Ne2 e5 8. O-O Be7 9. Bb2 O-O) (
    4... Be7 5. Nf3 Nc6 6. Bd3 d5 7. Bb2 d4 8. Na4 O-O 9. O-O e5) 5. exd5 exd5 6.
    Bd3 Nc6 7. Nf3 Bd6 8. O-O O-O 9. Bb2 Re8) 4... Nd5 5. c4 Nb6 6. Bb2 a5 7. b5 d5
    8. exd6 cxd6 9. Nf3 N8d7) (3. Nf3 Bxb4 4. a3 (4. Bb2 Nf6 5. e5 Nh5 6. c3 Be7 7.
    Qa4 f5 8. exf6 Nxf6 9. Bd3 Nc6) (4. Nc3 Nc6 (4... d6 5. a3 Ba5 6. Bc4 Nf6 7.
    O-O b5 8. Bd3 Bb7 9. e5 dxe5) 5. Bb2 Nf6 6. Bd3 O-O 7. O-O d5 8. e5 Nd7 9. Qe2
    Nc5) (4. Bd3 Nc6 (4... Nf6 5. Bb2 Nc6 6. O-O O-O 7. a3 Bc5 8. Nc3 d6 9. Qe2 Nd4
    ) (4... Qe7 5. Nc3 Nc6 6. O-O Nf6 7. Bb2 O-O 8. e5 Nh5 9. g3 f5) (4... d6 5.
    Bb2 Nf6 6. a3 Bc5 7. Nc3 Nc6 8. Qe2 Nd4 9. Nxd4 Bxd4) (4... h6 5. Ba3 Bxa3 6.
    Nxa3 Nc6 7. O-O Nf6 8. Nc4 O-O 9. e5 Nd5) 5. Nc3 Nf6 6. Bb2 O-O 7. e5 Ng4 8. a3
    Be7 9. O-O Ncxe5) (4. Ba3 Bxa3 (4... Qe7 5. Bxb4 Qxb4 6. Nc3 Nc6 7. Bd3 Nf6 8.
    O-O Qc5 9. Re1 d6) (4... a5 5. Bb2 Nf6 6. a3 Be7 7. e5 Nd5 8. Nc3 O-O 9. Bc4
    Nb6) (4... Nc6 5. Bxb4 Nxb4 6. Nc3 Nf6 7. a3 Nc6 8. Bd3 d5 9. e5 Ng4) 5. Nxa3
    Nc6 6. Bd3 b5 7. c4 b4 8. Nc2 e5 9. Ne3 Rb8) 4... Ba5 (4... Be7 5. Bb2 Nf6 6.
    e5 Nh5 7. g3 Nc6 8. Bd3 O-O 9. O-O f5) (4... Bc5 5. d4 Bb6 6. Nc3 Nc6 7. Be2 d5
    8. O-O Ba5 9. Bg5 Nf6) 5. Nc3 Nc6 6. Bd3 Nf6 7. Bb2 O-O 8. O-O d6 9. Qe2 Nd7)
    3... d5 (3... Bxb4 4. Bxg7 Bxd2+ (4... Nf6 5. Bxh8 Nxe4 6. Qg4 f5 7. Qh5+ Kf8
    8. Qxh7 Qe7 9. Qh6+ Kg8) (4... Nc6 5. Bxh8 Nf6 6. Qf3 Be7 7. Nc3 d5 8. exd5
    exd5 9. Bd3 Be6) 5. Nxd2 $18 Nc6 6. Bxh8 d6 7. Ngf3 Nf6 8. Bg7 Nh5 9. Bb2 Bd7)
    (3... Nf6 4. e5 (4. Nc3 d5 (4... Nc6 5. a3 d5 6. Bd3 d4 7. Nce2 e5 8. Nf3 Bd6
    9. O-O O-O) 5. e5 Nfd7 6. Nf3 Bxb4 7. Bd3 Nc6 8. Qe2 O-O 9. O-O Nc5) (4. Nf3
    Bxb4 (4... Nxe4 5. Bd3 d5 6. Nc3 Nxc3 7. Bxc3 Nc6 8. a3 Bd6 9. Qe2 O-O) (4...
    Nc6 5. e5 Nh5 6. a3 g6 7. d4 Bg7 8. Qd2 f5 9. Nc3 O-O) (4... d5 5. e5 Nfd7 6.
    a3 c5 7. bxc5 Bxc5 8. d4 Be7 9. Nbd2 Nc6) 5. e5 Ne4 6. a3 Ba5 7. Bd3 Nc5 8. Nc3
    d5 9. exd6 Qxd6) 4... Nd5 5. Nc3 Nc6 6. a3 Nxc3 7. Bxc3 d5 8. exd6 cxd6 9. Nf3
    e5) (3... Nc6 4. a3 (4. Nf3 Nxb4 (4... Nf6 5. e5 Nd5 6. c4 Nb6 7. a3 Be7 8. Nc3
    d6 9. exd6 cxd6) (4... d5 5. exd5 exd5 6. a3 Nf6 7. Bd3 Qe7+ 8. Qe2 Nh5 9. g3
    Bg4) 5. Nc3 Be7 6. a3 Nc6 7. Bd3 Nf6 8. e5 Nh5 9. g3 O-O) 4... d5 (4... Nf6 5.
    Bd3 d5 6. e5 Ne4 7. Nf3 g5 8. h3 Bg7 9. Qe2 f5) (4... Qg5 5. Nf3 Qf4 6. Bd3 Nf6
    7. Nc3 Bd6 8. Ne2 Qg4 9. Ng3 Be7) (4... Qh4 5. Bd3 Nf6 6. Nf3 Qh5 7. Nc3 Bd6 8.
    O-O O-O 9. Re1 Ng4) 5. exd5 exd5 6. Nf3 Nf6 7. Bd3 Qe7+ 8. Qe2 Bg4 9. Nc3 Qxe2+
    ) 4. exd5 (4. Nc3 Nf6 (4... d4 5. Nce2 Nc6 6. Nf3 e5 7. c3 dxc3 8. Nxc3 Nf6 9.
    b5 axb5) (4... Nc6 5. exd5 exd5 6. Nf3 Nf6 7. a3 Bd6 8. Bd3 Qe7+ 9. Qe2 Qxe2+)
    5. e5 Nfd7 6. Nf3 Bxb4 7. Be2 c5 8. a3 Ba5 9. d4 Nc6) 4... Qxd5 (4... exd5 5.
    Nf3 Nf6 6. a3 Bd6 7. Bd3 Qe7+ 8. Qe2 Qxe2+ 9. Kxe2 O-O) (4... Nf6 5. Nf3 exd5
    6. Bd3 Bxb4 7. Qe2+ Be7 8. Bxf6 gxf6 9. O-O Nc6) 5. c4 (5. Nc3 Qe5+ (5... Qd6
    6. a3 Nf6 7. Nf3 Nc6 8. Bd3 Be7 9. O-O O-O) 6. Qe2 (6. Be2 Nf6 7. Nf3 Qd6 8. b5
    Qb6 9. a4 Bb4) 6... Qxe2+ 7. Ncxe2 (7. Bxe2 Nc6 8. a3 Nf6 9. Nf3 Bd6) 7... Nc6
    $11 (7... Bxb4 $2 8. Bxg7 Nc6 9. Bxh8 $18) (7... Nf6 8. a3 a5 9. b5 Bd6) 8. a3
    Nf6 9. Nf3 Bd7) 5... Qe4+ 6. Qe2 (6. Be2 Qxg2 7. Bf3 Qg6 8. Ne2 Nf6 9. Qa4+ Bd7
    ) 6... Qg6 (6... Qc2 7. Be5 f6 8. Na3 Qa4 9. Bb2 Nc6) 7. a3 (7. Nf3 Nc6 8. a3
    Qc2 9. d4 Nxb4) 7... c5 (7... Nc6 8. Nf3 Nf6 9. Nc3 Bd6) 8. b5 (8. Qe5 Nc6 (
    8... cxb4 9. Qg3 Nc6) 9. Qe2 (9. Qg3 cxb4) 9... Nf6 $17 {-1.33/11} (9... cxb4
    $17)) (8. Nc3 Nf6 9. Nd5 Nxd5) 8... Be7 (8... axb5 9. cxb5 Nd7) 9. Nf3 (9. Nc3
    Nf6) 9... Nd7 (9... axb5 $15 {-0.45/11}) 10. d4 axb5 11. cxb5 Bf6 12. dxc5 Ra4
    13. Kd1 (13. Bxf6 Qxf6 14. Ra2 Nxc5 $11) 13... Nxc5 14. Qc2 (14. Ne5 Qf5 15.
    Ke1 Re4 $19) 14... Qxc2+ 15. Kxc2 Ne4 16. Nc3 Nxf2 17. Nxa4 Nxh1 18. Nb6 Ne7 (
    18... Bxb2 19. Kxb2 Ne7 20. Rc1 $11) 19. a4 (19. Bxf6 gxf6 20. Bd3 Nf2 $11)
    19... O-O (19... Bxb2 20. Kxb2 Nf2 21. Rc1 $11) 20. a5 (20. Bxf6 $142 gxf6 21.
    Bd3 $11) 20... Nd5 $4 (20... Bxb2 $142 $5 21. Kxb2 Nd5 $15) 21. Nxd5 $14 exd5
    22. Bxf6 gxf6 23. a6 b6 (23... bxa6 24. bxa6 Bf5+ 25. Bd3 Rc8+ 26. Kd2 Bxd3 27.
    Kxd3 Nf2+ 28. Kd4 $18) 24. Bc4 (24. a7 $142 Bf5+ 25. Bd3 Bxd3+ 26. Kxd3 $18)
    24... dxc4 $16 25. Rxh1 Rd8 (25... Bf5+ 26. Kc3 Rc8 27. Ra1 $18) 26. Rd1 (26.
    Ra1 $5 $16) 26... Bf5+ $14 27. Kc1 Bd3 28. Ne1 Kf8 29. Nxd3 cxd3 30. Kd2 Ke7
    31. Rc1 Kd6 $2 (31... Rd7 $5 $16) 32. Rc6+ Kd5 33. Rxb6 (33. Kxd3 f5 $18) 33...
    Kc4 34. a7 Rg8 35. g3 Ra8 36. Rb7 Re8 37. Rb8 (37. Rb8 Re2+ 38. Kd1 $18) 1-0
    
    [Event "corr SOK-91-74"]
    [Site "?"]
    [Date "1991.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Roever"]
    [Result "1-0"]
    [PlyCount "69"]
    [EventDate "1991.??.??"]
    
    1. b4 (1. e4 e5 $11) 1... b5 (1... e5 2. Bb2 $11) 2. e3 (2. a4 bxa4 3. Nf3 a5
    4. Rxa4 Nc6 $14) 2... e6 3. Bxb5 Bxb4 4. Bb2 Nf6 5. Qf3 c6 6. Bd3 O-O (6... d5
    7. Qg3 O-O 8. Bxh7+ Kxh7 9. Qh4+ Kg8 10. Qxb4 $14) 7. Nh3 Re8 (7... d5 8. Bxf6
    Qxf6 9. Qxf6 gxf6 10. a3 $11) 8. Ng5 $14 h6 9. h4 (9. Bxf6 Qxf6 (9... gxf6 $143
    10. Nxe6 fxe6 11. Qg4+ Kh8 12. Qxb4 $16) 10. Qxf6 gxf6 $11) 9... Qe7 (9... d5
    10. Bxf6 Qxf6 11. Qxf6 gxf6 12. a3 $15) 10. g4 (10. Bxf6 Qxf6 11. Qxf6 gxf6 $11
    ) 10... e5 11. Ne4 Nh7 (11... d5 $5 12. Nxf6+ Qxf6 13. Qxf6 gxf6 $11) 12. c3
    $14 d5 13. g5 $4 (13. cxb4 Qxb4 14. Bc3 dxe4 15. Bxe4 Qe7 $14) 13... dxe4 (
    13... Ba5 14. g6 fxg6 $19 (14... dxe4 $6 15. gxh7+ Kxh7 16. Bxe4+ Kg8 17. Qh5
    $11 (17. Bxc6 $2 Nxc6 18. Qxc6 Bb7 $19))) 14. Qxe4 $16 {The mate threat is Qxh7
    } Nf6 $4 (14... f5 $142 15. Qxb4 hxg5 16. Bc4+ Be6 $14) 15. gxf6 $18 (15. Qxb4
    $6 Qd7 16. Bc4 Nd5 $14) 15... Qxf6 16. cxb4 (16. Qxb4 $143 Nd7 $18) 16... a5 (
    16... Nd7 17. Qh7+ Kf8 18. f4 $18) 17. b5 g6 18. Rg1 h5 (18... Kh8 19. h5 Bf5
    20. Qf3 $18) 19. Rg5 Nd7 20. Bc4 (20. bxc6 Nc5 21. Qd5 Nxd3+ 22. Qxd3 Qxc6 23.
    Bxe5 Ba6 24. Qxa6 Rxa6 $19) (20. Qxc6 Ra6 21. Qxf6 Rxf6 $18 (21... Nxf6 $4 22.
    bxa6 Ng4 23. f3 $18)) 20... Kg7 21. bxc6 Nc5 (21... Nb6 22. Bd3 Ba6 23. Bxa6
    Rxa6 24. Bxe5 Kf8 $18) 22. Qxe5 $1 Rxe5 (22... Qxe5 {A pinning theme} 23. Bxe5+
    ) 23. Bxe5 {A pinning theme} (23. Rxe5 Be6 24. Bd4 Nd3+ 25. Bxd3 Kg8 26. Rxh5
    Qxd4 27. exd4 gxh5 $18) 23... Bf5 24. Bxf6+ Kxf6 25. Nc3 Bd3 {Black intends a4}
    (25... Ne4 26. Nd5+ Ke5 $18) 26. Rxc5 Rd8 27. Bxd3 Rxd3 28. c7 a4 29. c8=Q Kg7
    30. Rc6 Rxd2 31. Kxd2 a3 32. Rb1 g5 33. Rb8 f6 34. Qg8+ Kh6 35. Rxf6# (35.
    hxg5#) 1-0
    
    [Event "corr ICCF T-19-F"]
    [Site "?"]
    [Date "1979.??.??"]
    [Round "?"]
    [White "Otto, Zdenek"]
    [Black "Diener, Rudolf"]
    [Result "*"]
    [PlyCount "26"]
    [EventDate "1979.??.??"]
    
    1. b4 c6 2. c4 d5 3. cxd5 cxd5 4. Bb2 Nf6 5. Nf3 e6 (
    5... Bf5 6. e3 e6 7. a3 h6 8. Be2 Be7 9. O-O O-O 10. d4 Nbd7 11. Bd3 Bxd3 12.
    Qxd3 Ne4 13. Nbd2 Nxd2 14. Nxd2 Nb6 15. Qb3 Qd7 16. a4 Rfc8 17. b5 a6 18. Nf3
    Nc4 19. Bc3 axb5 20. axb5 {
    Ehrlich,H (1935)-Jonker,M (2335)/Verbandsliga 2002/0-1 (61)}) 6. e3 (6. a3 a5
    7. Qa4+ b5 8. Qb3 axb4 9. axb4 Rxa1 10. Bxa1 Nc6 11. e3 Qb6 12. Bd4 Nxd4 13.
    Nxd4 Bd7 14. Nc3 Be7 15. Bd3 Qd6 16. Bxb5 Qxb4 17. Bxd7+ Kxd7 18. Qc2 Rc8 19.
    O-O Ne4 20. Rb1 Nxc3 {Schulz,H-Bonetti,S/TT-08 ETC 2003/0-1}) 6... Bxb4 $146 (
    6... Be7 7. a3 O-O 8. Be2 Nbd7 9. O-O Nb6 10. d3 Nfd7 11. Nbd2 Bf6 12. d4 Be7
    13. Rc1 f5 14. Nb3 Rf6 15. Nc5 Rh6 16. a4 Bd6 17. g3 g5 18. Kg2 g4 19. Ng1 Nf8
    20. h3 Qg5 21. h4 {Schiffler,L-Grosser,W/DDR 1952/1-0 (33)}) (6... Nc6 7. b5
    Na5 8. Na3 Bd6 9. Be2 O-O 10. O-O a6 11. Rc1 Bd7 12. bxa6 bxa6 13. Nc2 Rb8 14.
    Be5 Ba4 15. d4 Ne4 16. Bxa6 Rb2 17. Bxd6 Qxd6 18. Bd3 f5 19. Ne5 Rfb8 20. Qe1
    Nc4 21. Bxc4 {Schalkwijk,P (1700)-le Roux,A/IECC 1999/1-0 (42)}) 7. Qa4+ Nc6 8.
    Bb5 Qd6 9. Be5 Qc5 10. O-O a6 11. Bxc6+ bxc6 12. a3 Ba5 13. Nd4 {
    Exerts pressure on the backward pawn} Bd7 *
    
    [Event "corr ICCF T-19-F"]
    [Site "?"]
    [Date "1979.??.??"]
    [Round "?"]
    [White "Poschmann, Hans"]
    [Black "Diener, Rudolf"]
    [Result "*"]
    [PlyCount "86"]
    [EventDate "1979.??.??"]
    
    1. b4 c6 2. c4 d5 3. e3 e6 4. Bb2 dxc4 5. Bxc4 Qg5 6. Qf3 Bxb4 7. h4 Qh6 $17 8.
    g4 f6 (8... Nd7 9. Ne2 Bf8 10. Nf4 $14) 9. Ne2 (9. Qd1 Kf7 $15) 9... Ne7 10.
    Nf4 (10. a3 Bd6 $15) 10... Nd5 (10... e5 11. Ne6 Bxe6 12. Bxe6 $17) 11. Qe4
    Nxf4 12. exf4 Kd8 $4 (12... Be7 $142 $17) 13. g5 $18 Qh5 (13... Qg6 $142 14.
    Qxg6 hxg6 15. gxf6 Rg8 16. fxg7 Be7 $18) 14. gxf6 $4 (14. Be2 $142 Bxd2+ 15.
    Nxd2 $18) 14... g6 $11 15. f7 Rf8 16. Bxe6 Bxe6 17. Qxe6 Qd5 18. Bf6+ Kc7 19.
    Qxd5 cxd5 20. Be5+ Kc6 21. Ke2 (21. a3 Bd6 $15) 21... Na6 (21... Rxf7 22. Rc1+
    Kd7 23. Rc7+ Ke6 24. Rxf7 Kxf7 25. a3 $15) 22. h5 (22. a3 Be7 $11) 22... Rxf7
    $15 23. hxg6 hxg6 24. d4 (24. Rh6 Rg8 $15) 24... Re8 $15 25. a3 Ba5 (25... Bd6
    26. Kd3 $15) 26. Kd3 $11 Nc7 27. Nd2 Bxd2 28. Kxd2 Ne6 {
    Attacking the isolated pawn on f4} 29. Rh4 g5 (29... Kb5 30. Rg4 $11) 30. fxg5
    (30. Rc1+ Kb5 31. fxg5 Rxf2+ 32. Ke3 Rg2 $11) 30... Rxf2+ 31. Ke3 Rg2 32. Rc1+
    Kb5 (32... Kb6 33. Rh7 Rxg5 34. Rb1+ Ka6 35. Rbxb7 Nxd4 36. Kxd4 Rgxe5 37. Rbd7
    $11) 33. Rb1+ (33. Rh7 Rxg5 (33... Nxg5 $143 34. Rxb7+ Ka6 35. Rd7 $16) 34.
    Rxb7+ Ka6 $11) 33... Ka6 $11 34. Rh7 b6 35. Rd7 Rxg5 (35... Rg4 36. Kf3 Rxg5
    37. Rb4 $11) 36. Rxd5 $14 Nc7 (36... Rh5 37. Ra1 $14) 37. Rd7 Nb5 38. Kf4 Rg2 (
    38... Nxa3 $4 39. Ra1 (39. Kxg5 Nxb1 40. Kf6 b5 $15) 39... Rg2 40. Rxa3+ Kb5
    41. Rdxa7 Rf2+ 42. Ke4 $18) 39. Ra1 (39. Rb4 Nc3 40. Kf5 Rf2+ 41. Kg6 Ra2 $11)
    39... Rf8+ $11 40. Ke3 Nc3 (40... Rgf2 41. d5 $11) 41. a4 (41. Rh7 Re2+ 42. Kd3
    Rf3+ 43. Kc4 b5+ 44. Kc5 Na4+ 45. Kc6 Rc3+ 46. Kd6 Nb6 $11) 41... Rgf2 (41...
    Re2+ 42. Kd3 Rf3+ 43. Kc4 $11) 42. Kd3 R2f3+ (42... R8f3+ 43. Kc4 Rc2 44. Kb3
    $11) 43. Kc4 $14 Rc8+ (43... Rc8+ 44. Rc7 Rxc7+ 45. Bxc7 Kb7 $14) *
    
    [Event "corr ICCF"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Poschmann, Hans"]
    [Result "1-0"]
    [PlyCount "57"]
    [EventDate "1988.??.??"]
    
    1. b4 c6 2. c4 (2. Nf3 d5 $11) 2... e5 3. Bb2 f6 4. b5 cxb5 (
    4... a6 5. Qa4 $11) 5. cxb5 $11 d5 6. e3 Be6 (6... Bf5 7. Nc3 $11) 7. Nf3 (7.
    d4 Bb4+ 8. Bc3 Qe7 $11) 7... Bd6 8. Nc3 (8. d4 e4 9. Nfd2 Ne7 $11) 8... Nd7 9.
    Be2 Nh6 (9... Rc8 10. O-O $15) 10. d4 Nb6 11. a4 (11. e4 dxe4 12. Nxe4 Bb4+ 13.
    Bc3 Bxc3+ 14. Nxc3 Rc8 $11) 11... Rc8 (11... O-O 12. Ba3 $15) 12. a5 Nc4 13.
    Bxc4 Rxc4 14. O-O Bb4 (14... O-O 15. a6 e4 16. Nd2 $11) 15. Ne2 e4 (15... Bxa5
    $143 16. dxe5 fxe5 17. Nxe5 $16) 16. Nd2 Rc8 17. Nf4 Bf7 (17... Bg4 18. f3 exf3
    19. Nxf3 Bxa5 20. Nxd5 $11) 18. b6 (18. a6 Qe7 $11) 18... O-O (18... Bxd2 $5
    19. bxa7 Bxe3 20. fxe3 Ra8 $11) 19. bxa7 $14 Ra8 20. Nb3 (20. Ba3 Bxa3 21. Rxa3
    Rxa7 $14) 20... Rxa7 {The pressure on the isolated pawn grows} (20... Qd6 21.
    Qe2 Rfc8 22. Qb5 Rxa7 23. Rfc1 $11) 21. Ba3 $14 Bxa3 22. Rxa3 Qd6 23. Qa1 (23.
    Ra1 Rfa8 $14) 23... g5 (23... Ng4 24. Nc5 $11) 24. Ne2 Bh5 (24... Ng4 25. Ng3
    $14) 25. Nc3 (25. Ng3 $142 Bg4 26. Nc5 $16) 25... Rc8 $4 (25... Ng4 $142 26. g3
    Be8 $14) 26. Nb5 $18 Qb8 27. Nxa7 Qxa7 (27... Ng4 28. g3 Qxa7 29. Qb2 $18) 28.
    Nc5 Be2 (28... b6 29. axb6 Qxb6 30. Qa2 $18) 29. Rb1 (29. Rb1 Ba6 30. Rb6 $18)
    1-0
    
    [Event "corr"]
    [Site "?"]
    [Date "1982.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Butze"]
    [Result "0-1"]
    [PlyCount "70"]
    [EventDate "1982.??.??"]
    
    1. b4 c6 2. c4 (2. e4 d5 3. exd5 Qxd5 $11) 2... e5 3. Bb2 f6
    4. b5 d5 5. cxd5 cxd5 6. e3 (6. d4 Nd7 $11) 6... Be6 7. Be2 Bd6 8. Bh5+ (8. d4
    e4 $11) 8... g6 $15 9. Bf3 (9. Be2 Nd7 $15) 9... Ne7 10. Qb3 (10. Ne2 e4 11.
    Nd4 Bd7 $11) 10... Kf7 (10... Nd7 11. d4 $15) 11. d4 e4 (11... Nd7 12. Nd2 $15)
    12. Bd1 Nd7 13. Ne2 f5 (13... Rc8 14. Nbc3 $15) 14. a4 (14. Ba3 Bxa3 15. Nxa3
    Qa5+ 16. Nc3 Rhc8 $11) 14... Nf6 (14... Rc8 15. Ba3 Nb6 16. Bxd6 Qxd6 17. Nbc3
    $11) 15. Nbc3 h5 (15... Kg7 16. Ba3 $11) 16. Ba3 $14 h4 17. Bxd6 Qxd6 18. Nf4 (
    18. h3 Rhc8 $14) 18... Rac8 (18... g5 19. Nxe6 Qxe6 20. O-O $14) 19. f3 (19.
    Rc1 g5 20. Nxe6 Qxe6 $14) 19... Rc7 (19... exf3 20. Bxf3 g5 21. Nd3 $11) 20.
    O-O Rhc8 21. Nce2 (21. Rc1 exf3 22. Bxf3 Ne4 23. Bxe4 dxe4 $14) 21... g5 (21...
    exf3 22. Rxf3 Ne4 23. Ra2 $11) 22. fxe4 (22. Nh3 Nh7 $11) 22... fxe4 (22...
    Nxe4 $5 23. Nxe6 Qxe6 $15) 23. Nh5 $11 Neg8 24. Qb2 (24. Nxf6 Nxf6 25. a5 Ke7
    $11) 24... Bg4 (24... Ke7 25. b6 axb6 26. Nc1 $15) 25. Nxf6 Nxf6 26. Bb3 Kg6 (
    26... Ke8 27. Rac1 $11) 27. Rf2 Bh5 28. h3 Bxe2 29. Qxe2 Nh5 (29... Rc3 30. Qa2
    Rc1+ (30... Rxe3 $143 31. Raf1 $14) 31. Rf1 Rxf1+ 32. Rxf1 Rc3 $15) 30. Qa2 Ng3
    31. Rd1 (31. Bxd5 Rc1+ 32. Rf1 Nxf1 (32... Rxf1+ $6 33. Rxf1 Nxf1 34. Bxe4+ Kg7
    35. Kxf1 $11) 33. Bxe4+ Kg7 $19) 31... Rc1 32. Rfd2 (32. Qd2 $5 R1c3 33. Ba2
    $11) 32... Qf8 $15 {The mate threat is Qf1} 33. Rf2 Rxd1+ 34. Bxd1 Rc1 {
    Threatening mate: Rxd1} 35. Qb3 $4 (35. Qd2 Qa3 36. Re2 Nxe2+ 37. Qxe2 $19)
    35... Qb4 $3 (35... Qb4 36. Qd3 exd3 $19) 0-1
    
    [Event "corr DDR-ch M781"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Dupont, Gerhard"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "65"]
    [EventDate "1985.??.??"]
    
    1. b4 c6 2. c4 Qb6 3. a3 Qd4 $15 4. Qc2 $2 (4. Nc3 $142 $5 Qxc4 5. Nf3 $15)
    4... Qxa1 $19 5. Bb2 Qa2 6. e4 Na6 7. Nf3 (7. Be2 Nxb4 8. axb4 d6 $19) 7...
    Nxb4 8. axb4 Qa6 9. Be2 (9. c5 b5 $19) 9... Qb6 10. Qb3 (10. Bc3 d6 $19) 10...
    f6 (10... a5 $142 $5 11. Bc3 c5 12. b5 $19) 11. c5 Qc7 12. O-O Nh6 13. d4 e6 (
    13... d6 14. Nbd2 $19) 14. Nbd2 (14. Bc1 Nf7 $17) 14... b5 (14... d5 15. Ra1
    $17) 15. d5 $17 e5 (15... a5 16. d6 a4 17. Qc3 $17) 16. d6 $15 Qd8 17. Nh4 g6
    18. f4 Bg7 (18... exf4 19. e5 f5 20. Nxf5 Nxf5 21. e6 Bxd6 22. Bxh8 $15) 19.
    Nf5 (19. fxe5 fxe5 20. Nhf3 Rf8 $11) 19... Nxf5 (19... gxf5 $142 $5 20. Bh5+
    Kf8 21. fxe5 Rg8 (21... fxe5 22. Rxf5+ Qf6 23. Rxf6+ Bxf6 24. Qf3 $18) 22. exf6
    Bh8 $15 (22... Bxf6 23. Rxf5 Rg5 24. Rxf6+ Qxf6 25. Bxf6 Rg6 26. Bxg6 hxg6 27.
    Be7+ Kg7 28. Qc3+ Kg8 29. Qf6 Rb8 30. Qxg6+ Kh8 31. Bf6#)) 20. fxe5 fxe5 21.
    Rxf5 {Do you see the mate threat?} Rf8 22. Rh5 Qf6 (22... gxh5 23. Bxh5+ {
    A beautiful mate combination}) 23. Rxe5+ Kd8 (23... Qxe5 24. Bxe5 Bxe5 25. Nf3
    $14) 24. Re8+ Kxe8 (24... Rxe8 25. Bxf6+ Bxf6 26. Qa3 $14) 25. Bxf6 Bxf6 26.
    Qh3 (26. e5 Bh4 27. Qh3 Bf2+ 28. Kh1 Rf7 $18) 26... Rf7 (26... Bd4+ 27. Kh1 Rf7
    28. Nf3 $18) 27. Nf3 a5 28. e5 Bd8 29. e6 {Threatening mate: exf7} dxe6 30. Ne5
    Rg7 31. Nxg6 (31. Bf3 Raa7 32. Bxc6+ Kf8 33. Qd3 axb4 34. d7 Bxd7 35. Qd6+ (35.
    Bxd7 $6 Ra1+ 36. Kf2 Ra2+ 37. Ke1 Ra1+ 38. Ke2 Re7 $18) (35. Nxd7+ $6 Kg8 $18)
    35... Re7 36. Nxd7+ (36. Bxd7 $143 Bc7 37. Qd4 Bxe5 38. Qxe5 Rexd7 $15) 36...
    Kg7 37. Ne5 $18) 31... Bg5 $4 (31... Bf6 32. Ne5 Bxe5 33. Qh5+ Kf8 34. Qxe5 Kg8
    (34... axb4 35. Qf6+ Kg8 36. Qd8+ Kf7 37. Qe7+ Kg6 38. Bd3+ Kh5 39. Qxg7 Ra1+
    40. Qxa1 e5 41. Qxe5+ Kh6 42. Qf6+ Kh5 43. h3 Bxh3 44. gxh3 b3 45. Be2#) 35.
    bxa5 Bd7 $18) 32. Bh5 (32. Qf3 hxg6 33. Qxc6+ Bd7 34. Qxa8+ Kf7 35. Qf3+ Bf6
    36. bxa5 $18) 32... Kd8 $4 (32... hxg6 33. Bxg6+ Kf8 34. Qh8+ Rg8 $11) 33. Qf3
    $18 (33. Qf3 Bd7 34. Qf8+ Be8 35. Ne5 $18) 1-0
    
    [Event "corr DDR"]
    [Site "?"]
    [Date "1982.??.??"]
    [Round "?"]
    [White "Lieber, Karl Heinz"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "100"]
    [EventDate "1982.??.??"]
    
    1. b4 c6 2. c4 Qb6 3. a3 Qd4 $15 4. Nc3 Qxc4 5. e4 Qe6 6. d4 d5 7. e5 f6 8. f4
    Qg4 (8... g6 9. Be2 $15) 9. Nge2 (9. Be2 Qd7 $11 (9... Qxg2 $2 10. Bf3 Bg4 11.
    Bxg2 Bxd1 12. Kxd1 $18)) 9... Nd7 10. h3 Qh4+ 11. g3 Qh5 12. Be3 $2 (12. Qd3
    $142 $5 $15) 12... Qf3 $19 13. Qd3 $4 (13. Rg1 $142 Qxe3 14. g4 Nxe5 15. dxe5
    $19) 13... Qxh1 14. Ng1 (14. e6 Nb6 15. f5 Qf3 $19) 14... Qh2 15. Bf2 Nh6 (
    15... Nb6 $142 $5 16. b5 $19) 16. Qf3 fxe5 (16... g5 $142 $5 17. fxg5 fxg5 18.
    Ra2 $19) 17. dxe5 g5 18. Qh5+ Kd8 19. Nf3 (19. Qe2 Qh1 20. fxg5 Nf7 $19) 19...
    Qh1 20. Nxg5 {Threatening mate... how?} Nxe5 (20... Nb6 21. O-O-O $19) 21.
    O-O-O (21. fxe5 $142 Bg7 22. O-O-O $19) 21... Bg4 $4 (21... Ng6 $142 22. Bb5
    Qg2 $19) 22. Ne6+ Bxe6 23. Qxe5 {A double attack} Rg8 24. Ba6 Qxh3 (24... bxa6
    25. Rxh1) 25. Bxb7 Bg7 26. Qe3 Rb8 (26... Rc8 $5 27. Ne2 $19) 27. Qxa7 Rxb7 (
    27... Bxc3 $6 28. Qxb8+ Kd7 29. Bxc6+ Kxc6 30. Qb6+ Kd7 31. Qb5+ Kc7 32. Qb6+
    Kc8 33. Qc6+ Kb8 34. Qb6+ Kc8 35. Qc6+ Kb8 36. Qb6+ Kc8 $11) 28. Qxb7 Bxc3 (
    28... Ke8 $142 $19) 29. Qxc6 $17 {The mate threat is Bb6} d4 (29... Bd7 $142
    30. Qa8+ Bc8 31. Qxd5+ Ke8 32. Qc6+ Bd7 33. Qxc3 Qe6 $17) 30. Bxd4 $11 {
    Do you see the mate threat?} Bd7 31. Bxc3 (31. Qa8+ Kc7 32. Qa7+ Kd8 33. Qa8+
    Kc7 34. Qa7+ Kd8 35. Qa8+ $11) 31... Ke8 $15 (31... Rxg3 32. Qa8+ Kc7 33. Be5+
    Kb6 34. Qa5+ Kb7 35. b5 Rc3+ 36. Bxc3 (36. Qxc3 $143 Qxc3+ 37. Bxc3 Bxb5 $18)
    36... Qe3+ 37. Rd2 $18) 32. Rxd7 Qxd7 {Threatening mate... how?} 33. Qxh6 Rxg3
    {Threatening mate: Rxc3} 34. Qh5+ Kf8 35. Qe5 Qc8 (35... Qd3 36. Kb2 $17) 36.
    Kb2 (36. Qh8+ Rg8 37. Qd4 $15) 36... Rg2+ (36... Qc4 $142 37. Qf5+ Kg8 $17) 37.
    Kb3 $14 Qg4 38. Qd4 (38. Qh8+ Qg8+ 39. Qxg8+ Rxg8 $11) 38... Qe6+ 39. Qc4 Qxc4+
    40. Kxc4 Ke8 41. a4 (41. b5 Kd7 $11) 41... Kd7 (41... h5 42. a5 Kd7 43. a6 $17)
    42. Kd5 e6+ (42... h5 43. Be1 $15) 43. Ke4 Re2+ (43... h5 44. Bf6 $17) 44. Kd3
    Rh2 45. Ke4 $2 (45. a5 $142 $5 $15) 45... h5 $19 46. f5 (46. Bf6 Ra2 47. Kd4
    Rxa4 48. Kc5 $19) 46... exf5+ (46... Rc2 $142 47. Bd4 h4 $19) 47. Kxf5 $17 Rg2
    (47... h4 $142 48. Kg4 h3 $15) 48. Kf4 $2 (48. Be1 $142 $15) 48... h4 $19 49.
    Be1 (49. Be5 Re2 50. Bb8 h3 $19) 49... h3 50. Kf3 Ra2 (50... Ra2 51. Bg3 h2 52.
    Bxh2 Rxh2 $19) 0-1
    
    [Event "corr SOK-87-08"]
    [Site "?"]
    [Date "1987.??.??"]
    [Round "?"]
    [White "Koerner"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "67"]
    [EventDate "1987.??.??"]
    
    1. b4 c6 2. c4 Qb6 3. Qb3 a5 4. b5 a4 5. Qc3 (5. Qc2 Nf6 $11) 5... Nf6 6. e3 e6
    (6... d6 7. d4 $11) 7. d4 Ne4 (7... d6 8. Nf3 $11) 8. Qc2 Bb4+ 9. Bd2 Nxd2 10.
    Nxd2 cxb5 (10... d6 11. Bd3 $11) 11. cxb5 $14 O-O 12. Ngf3 (12. Bd3 f5 $11)
    12... d5 13. Bd3 g6 (13... h6 14. Rc1 $11) 14. O-O (14. a3 Bd6 $11) 14... Bd7
    15. Rab1 Rc8 16. Qd1 Bd6 17. h4 (17. Qe2 Rc3 $11) 17... Rc3 18. Be2 (18. Qe2 f6
    $11) 18... Ra5 {b5 seems the pivot of the position} (18... Qa5 19. Ne5 $15) 19.
    h5 (19. e4 f6 $11) 19... Qc7 (19... gxh5 20. Ne5 $15) 20. hxg6 (20. e4 Rc2 21.
    Rc1 Rxc1 22. Qxc1 Qb6 $11) 20... hxg6 21. e4 Ba3 (21... Rc2 22. e5 Ba3 23. Ra1
    $15) 22. Ne5 Be8 (22... Bd6 23. b6 Qc8 24. Re1 $11) 23. exd5 $14 exd5 24. f4 (
    24. Re1 Nd7 $14) 24... Rc2 25. Bd3 {White prepares the advance f5} (25. Nc6
    $142 $1 Rxa2 26. Nxa5 Qxa5 27. Nf3 $14) 25... Rxa2 $17 26. f5 (26. Ndf3 Qc3 $17
    ) 26... Bb2 (26... Qb6 27. Ndf3 $17) 27. Qg4 Bxd4+ $4 (27... Nd7 28. fxg6 f5
    29. Rxf5 Ra1 $16) 28. Qxd4 $16 Rxd2 29. fxg6 fxg6 30. Qxd5+ Kg7 31. Qd4 Kg8 32.
    Bc4+ Kh7 (32... Kg7 33. Nd3+ Kh6 34. Rf8 Rxg2+ 35. Kxg2 Bc6+ 36. Kf1 Rxb5 37.
    Rh8+ Qh7 38. Qf4+ Rg5 39. Qf8+ Kh5 40. Rxh7+ Kg4 41. Qf4#) 33. Qxd2 (33. Qh4+
    $142 Kg7 34. Qf6+ Kh7 $18) 33... Qc5+ (33... Qxe5 34. Qxa5 Qd4+ 35. Rf2 Qxc4
    $18) 34. Rf2 (34. Rf2 Qxe5 35. Re1 Rxb5 36. Bxb5 $18) 1-0
    
    [Event "corr SOK-87-14"]
    [Site "?"]
    [Date "1987.??.??"]
    [Round "?"]
    [White "Drefke"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "62"]
    [EventDate "1987.??.??"]
    
    1. b4 c6 2. c4 Qb6 3. Qb3 e6 4. c5 Qc7 5. d4 a5 6. b5 cxb5 7. Qxb5 Nc6 8. e3 d6
    9. Ba3 Bd7 10. cxd6 Bxd6 11. Qd3 $4 (11. Bxd6 Qxd6 12. Qxb7 Rb8 $11) 11... Bxh2
    (11... Nb4 $142 12. Qc4 Nc2+ 13. Kd1 Qxc4 (13... Nxa3 $6 14. Qxc7 Ba4+ 15. Ke2
    Bxc7 16. Nxa3 $11) 14. Bxc4 Nxa3 (14... Nxa1 $6 15. Bxd6 Rd8 16. Bf4 $17) (
    14... Bxa3 $6 15. Kxc2 Ba4+ 16. Kc3 $15) 15. Nxa3 Bxa3 $19) 12. Nf3 $14 Bd6 13.
    Bxd6 (13. Rxh7 Rxh7 14. Bxd6 Qxd6 15. Qxh7 Qf8 $14) 13... Qxd6 $11 14. Rxh7 Nb4
    15. Rxh8 Nxd3+ 16. Bxd3 Ke7 17. Nbd2 (17. Bh7 $11) 17... Qa3 (17... Rc8 18. Ne5
    $15) 18. Ke2 (18. Bh7 Rc8 19. Rxg8 (19. Bxg8 $4 Rc1+ 20. Ke2 Bb5+ 21. Nc4 Bxc4+
    22. Kd2 Qc3#) 19... Rc1+ 20. Rxc1 Qxc1+ 21. Ke2 $11) 18... Bc6 (18... Rc8 19.
    Ne5 Qc3 20. Rhh1 $11) 19. Nc4 (19. Ne5 Bd5 $11 (19... Bxg2 $2 20. Rg1 Bd5 21.
    Rxg7 $18)) 19... Qc3 20. Rhh1 (20. Rb1 Bd5 21. Nfe5 Rc8 $14 (21... Bxg2 $2 22.
    f3 Rb8 23. Rh7 $18)) 20... Be4 $15 {The mate threat is Bxd3} 21. Nce5 (21. Bxe4
    Qxc4+ 22. Bd3 Qa4 $15) 21... Nf6 $17 22. Rhc1 Qb2+ (22... Qa3 23. Rc2 $15) 23.
    Nd2 $11 Bxg2 (23... Bxd3+ 24. Nxd3 Qb5 25. Rab1 Qh5+ 26. Nf3 $14) 24. Rab1 Qxa2
    25. Rc7+ Ke8 (25... Kd8 26. Rxf7 Bc6 $11) 26. Rxf7 (26. Bb5+ Kf8 27. Rxf7+ Kg8
    $18) 26... Be4 $4 (26... Ne4 27. Bxe4 Bxe4 $16) 27. Rxg7 (27. Bb5+ $142 Kd8 28.
    Bc4 $16) 27... Rb8 $2 (27... Bxd3+ 28. Kxd3 Ra7 $18) 28. Rb6 (28. Bb5+ Kd8 29.
    Rc1 Bf3+ 30. Nexf3 Qd5 $18) 28... Bxd3+ 29. Kxd3 a4 (29... Qa3+ $142 30. Ke2
    Qa2 $18) 30. Ng6 $4 (30. Ndc4 $142 Qxf2 31. Rxe6+ Kd8 32. Rd6+ Ke8 33. Rxf6
    Qxf6 34. Rg8+ Ke7 35. Rxb8 Qf1+ 36. Kc2 Qe2+ 37. Nd2 $18) 30... Nd7 $11 31.
    Rxe6+ $4 (31. Rg8+ $142 Kf7 32. Rxb8 Kxg6 33. R8xb7 Nxb6 34. Rxb6 $11) 31...
    Qxe6 $19 (31... Qxe6 32. Re7+ Qxe7 33. Nxe7 Kxe7 $19) 0-1
    
    [Event "corr DDR"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Sommer, Paul"]
    [Result "0-1"]
    [PlyCount "80"]
    [EventDate "1985.??.??"]
    
    1. b4 c6 2. e3 (2. Nf3 d5 $11) 2... d5 (2... e5 3. Bb2 d6 4.
    a3 $11) 3. c4 (3. Bb2 f6 $11) 3... Nf6 4. Bb2 e6 5. Qb3 b6 (5... dxc4 6. Bxc4
    Bd6 7. Nf3 $15) 6. Nf3 $11 Bd6 7. d4 (7. Be5 Ba6 $11) 7... Qe7 (7... a5 8. bxa5
    Rxa5 9. Ba3 $11) 8. c5 Bc7 9. Nbd2 Nbd7 10. Bc3 (10. Bd3 Rb8 11. Rc1 bxc5 12.
    dxc5 a5 $11) 10... bxc5 (10... O-O 11. Bd3 $11) 11. bxc5 O-O 12. Bd3 (12. Qa4
    Bb7 $14) 12... Re8 (12... e5 13. dxe5 Bxe5 14. Nxe5 Nxe5 15. Bxe5 Qxe5 16. O-O
    $11) 13. O-O (13. Qa4 Bb7 $14) 13... e5 (13... a5 14. Rab1 $11) 14. Nxe5 (14.
    Qa4 Bb7 15. Rfb1 Reb8 16. dxe5 Nxe5 (16... Nxc5 $2 17. exf6 Nxa4 18. fxe7 $18)
    (16... Qxc5 $4 17. Bb4 (17. exf6 Qxc3 18. Qd4 Qxd4 19. exd4 Nxf6 $17) 17... Qb6
    18. exf6 $18) 17. Nxe5 Bxe5 18. Bxe5 Qxe5 $14) 14... Nxe5 $11 15. dxe5 Nd7 (
    15... Rb8 16. Qa4 Nd7 $11 (16... Qxc5 $2 17. Bd4 (17. exf6 Qxc3 18. Qxa7 Rb7
    $17 (18... Qxd3 $143 19. Qxc7 Be6 20. Qg3 $14)) 17... Qa5 18. Qxa5 Bxa5 19. Nb3
    $18 (19. exf6 $6 Bxd2 20. fxg7 Rb7 $18))) 16. f4 (16. Qc2 h6 $11) 16... f6 (
    16... Nxc5 $5 17. Qc2 Nxd3 18. Qxd3 Qa3 $15) 17. Qc2 $11 fxe5 (17... h6 18.
    Bh7+ Kh8 19. Bg6 $11) 18. Bxh7+ $14 Kh8 19. Bg6 Rf8 20. f5 (20. fxe5 Qxc5 21.
    Bd4 Qxc2 22. Bxc2 Re8 $16) 20... e4 (20... Qxc5 21. Rf3 Nf6 22. Rc1 $11) 21.
    Nb3 Qg5 22. Qe2 (22. Rae1 Rb8 $11) 22... Ne5 {f5 draws heavy fire} 23. Bxe5
    Bxe5 24. Nd4 (24. Rab1 Bxf5 25. Bxf5 Rxf5 $11) 24... Ba6 $5 25. Qxa6 {
    A deflection} Qxe3+ {Theme: Double Attack} 26. Kh1 Bxd4 27. Rae1 Qh6 28. g3 (
    28. Qxc6 Be5 29. h3 Qg5 $11) 28... Be5 (28... Rab8 29. Rf4 (29. Qxa7 Rb2 30.
    Re2 Rxe2 31. Qxg7+ Kxg7 32. f6+ Rxf6 33. Rf2 Rfxf2 34. Bxe4 Qxh2#) (29. Qxc6
    Rb2 30. Re2 Rxe2 31. Rf2 Rxf2 32. Bh5 Qc1+ 33. Bd1 Qxd1#) 29... Bf6 30. Kg2
    Rb2+ 31. Re2 Rxe2+ 32. Qxe2 $17) 29. Kg2 $15 Rac8 30. Re2 (30. Qxa7 Ra8 31. Qe7
    Rxa2+ 32. Rf2 Rxf2+ 33. Kxf2 Qxh2+ 34. Kf1 Qh1+ 35. Kf2 Qf3+ 36. Kg1 Qxg3+ 37.
    Kf1 Qh3+ 38. Ke2 Qf3+ 39. Kd2 Qd3+ 40. Kc1 Bb2+ 41. Kxb2 Rb8+ 42. Qb7 Rxb7+ 43.
    Kc1 Rb1#) 30... Rc7 31. h4 Rb8 32. g4 $2 (32. Rd1 $142 $15) 32... Kg8 $19 {
    Black begins to deal mighty blows} (32... Qxh4 $2 33. Rh1 Qxh1+ 34. Kxh1 $18)
    33. Kh3 (33. Bh5 Rb5 $19) 33... Bf6 34. Bh5 Rb2 35. Kg3 (35. Rxb2 $142 Qe3+ 36.
    Kg2 Bxb2 37. Rb1 Qf3+ 38. Kh2 Be5+ 39. Kg1 Bd4+ 40. Kh2 $19) 35... Be5+ 36. Kg2
    Qe3 {The mate threat is Qg3} 37. Rxb2 Qg3+ (37... Bxb2 $6 38. Qa5 Be5 39. Qe1
    Qxc5 40. Qf2 $19) 38. Kh1 {Threatening mate... how?} Bxb2 39. Qe2 (39. Qa4 Be5
    40. Qc2 $19) 39... Qh3+ 40. Kg1 (40. Qh2 Qxf1+ 41. Qg1 Qd3 $19) 40... Bd4+ (
    40... Bd4+ 41. Qe3 Bxe3+ 42. Rf2 Rb7 43. Bf7+ Kxf7 44. f6 Rb1#) 0-1
    
    [Event "corr SOK-98-129"]
    [Site "?"]
    [Date "1999.??.??"]
    [Round "?"]
    [White "Wartig, Wolfgang"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "64"]
    [EventDate "1999.??.??"]
    
    1. b4 c6 2. Nf3 (2. e4 d5 3. exd5 Qxd5 $11) 2... d5 3. Bb2 f6 4. d4 (4. a3 e5
    $11) 4... Bg4 5. e3 (5. a3 a5 $11) 5... Qb6 (5... e5 6. dxe5 Bxb4+ 7. c3 $11)
    6. a3 a5 7. c3 (7. c4 axb4 8. Qb3 Bxf3 9. gxf3 e6 $11) 7... e5 8. h3 Bxf3 9.
    Qxf3 Nd7 (9... axb4 10. axb4 Rxa1 11. Bxa1 Qa7 $19) 10. Bd3 (10. Be2 $142 $5
    $11) 10... e4 $17 (10... axb4 $6 11. Qh5+ (11. axb4 $143 Rxa1 12. Bxa1 Qa7 $17)
    (11. cxb4 $143 e4 12. Bxe4 dxe4 13. Qxe4+ Ne7 $17) 11... Kd8 12. cxb4 $11 (12.
    axb4 $2 Rxa1 13. Bxa1 e4 $19)) 11. Bxe4 dxe4 12. Qxe4+ Ne7 13. Nd2 O-O-O (13...
    axb4 14. Nc4 Qc7 15. Qe6 bxc3 16. Nd6+ Kd8 17. Nf7+ Kc8 18. Bxc3 $11) 14. O-O-O
    (14. Nc4 $142 Qc7 15. Nxa5 $11) 14... axb4 $17 15. Nc4 Qc7 16. cxb4 Nd5 17. Qf3
    (17. Qc2 g6 $17) 17... N5b6 18. Nxb6+ Nxb6 19. Qf5+ (19. Rd2 Bd6 $17) 19... Kb8
    20. e4 {White prepares the advance d5} Qf7 (20... Nc4 21. Rhe1 $17) 21. Qa5 (
    21. Rhe1 g6 22. Qf3 Bh6+ 23. Kc2 Rhe8 $17) 21... Qc4+ 22. Kb1 Kc7 23. Rhe1 (23.
    Qf5 Qb3 24. Qf3 Qxf3 25. gxf3 Nc4 $17) 23... g6 24. d5 Ra8 (24... cxd5 $2 25.
    Rc1 (25. Bxf6 Ra8 26. Be5+ Bd6 27. Bxd6+ Kd7 28. Qxb6 Qb3+ 29. Kc1 Qc3+ 30. Kb1
    Qb3+ 31. Kc1 Qc3+ 32. Kb1 Qb3+ $11) 25... Ra8 26. Rxc4+ dxc4 27. Qb5 $18) 25.
    Rd4 Rxa5 26. Rxc4 Nxc4 27. bxa5 Nxb2 28. Kxb2 Bc5 29. f3 (29. Rc1 Kd6 30. dxc6
    bxc6 $19) 29... Ra8 30. Rc1 $2 (30. Rd1 $19) 30... Rxa5 31. Kb3 (31. Rc2 cxd5
    32. exd5 Kd6 $19) 31... Rxa3+ 32. Kb2 Ra5 (32... Ra5 33. Rd1 cxd5 34. Rxd5 Kc6
    $19) 0-1
    
    [Event "corr ICCF"]
    [Site "?"]
    [Date "1980.??.??"]
    [Round "?"]
    [White "Nicklich, Wolfgang"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "44"]
    [EventDate "1980.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. a3 axb4 4. axb4 Rxa1 5. Bxa1 Qb6 6. c3 d5 7. Nf3 Bf5 8.
    d3 Nf6 9. Nbd2 Nbd7 10. e3 e5 11. Be2 Be7 $146 (11... Bd6 12. e4 dxe4 13. dxe4
    Be6 14. Ng5 Bc7 15. Nxe6 fxe6 16. Qb3 Ke7 17. Bc4 Ra8 18. O-O Nf8 19. Nf3 h6
    20. Bb2 Nxe4 21. Bc1 Qa7 22. Qc2 Nf6 23. Be3 b6 24. Kh1 Nd5 25. Qe4 Nxe3 26.
    fxe3 {MT-guest800/ICC 2004/1-0 (31)}) 12. O-O O-O 13. Nh4 Be6 14. Nhf3 Ra8 15.
    h3 Bd6 16. Qc2 Bb8 17. e4 Nh5 18. Ng5 $2 (18. d4 $142 $5 $15) 18... Ng3 $19 19.
    exd5 $2 (19. Nb3 $142 Nxf1 20. Bxf1 $19) 19... Nxe2+ 20. Kh1 cxd5 (20... Bxd5
    21. c4 h6 22. cxd5 hxg5 23. Nc4 Rxa1 24. Rxa1 Qxf2 25. Qd1 cxd5 26. Qa4 $19)
    21. d4 e4 22. Ndxe4 Qc7 (22... Qc7 23. Ng3 Nxg3+ 24. fxg3 Nf8 $19) 0-1
    
    [Event "corr ICCF T-19-F"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Grund, Karl"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "64"]
    [EventDate "1985.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. a3 axb4 4. axb4 Rxa1 5. Bxa1 Qb6 6. c3 d5 7. Nf3 Bf5 8.
    d4 Qa7 9. Nbd2 b5 10. Ne5 Nf6 11. e3 Ne4 (11... e6 12. Bb2 $15) 12. Nb3 Qa2 13.
    Be2 f6 14. Nd3 e6 15. O-O Be7 16. g4 Bg6 17. Nf4 Ng5 18. Nxg6 hxg6 19. Bd3 (19.
    Nd2 $142 $5 $11) 19... Bd6 $17 20. Bxg6+ Ke7 21. Bh5 g6 (21... Rh6 22. h4 Ne4
    23. g5 fxg5 24. hxg5 Rxh5 25. Qxh5 Qxb3 26. Qg6 $15) 22. h4 $15 (22. Bxg6 $4
    Rxh2 23. c4 Nh3#) 22... gxh5 23. hxg5 hxg4 24. gxf6+ Kf7 25. Nd2 (25. Re1 $5
    $15) 25... Nd7 $17 26. Qc1 Rh2 27. Rd1 (27. e4 Bf4 (27... Nxf6 $2 28. e5 Rh8
    29. exd6 $18) 28. Qb2 Qxb2 29. Bxb2 Nxf6 $17) 27... Nxf6 $19 28. Qb1 (28. Qb2
    Qa8 29. Nf1 Rh3 $19) 28... Qa8 (28... Qxb1 29. Rxb1 g3 30. Rf1 $19) 29. Nf1 Rh3
    30. Nd2 Qh8 31. Kf1 Rh2 32. Ke2 (32. Qa2 Rxf2+ $3 33. Kxf2 Qh2+ 34. Kf1 $19)
    32... Rxf2+ $5 (32... Rxf2+ 33. Kxf2 Qh2+ 34. Kf1 g3 35. Qh7+ Nxh7 36. Ne4 g2+
    37. Ke2 g1=Q+ 38. Kd3 Qxd1+ 39. Nd2 Qhxd2#) 0-1
    
    [Event "corr DDR"]
    [Site "?"]
    [Date "1982.??.??"]
    [Round "?"]
    [White "Muster, Wolfgang"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "53"]
    [EventDate "1982.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. a3 axb4 4. axb4 Rxa1 5. Bxa1 Qb6 6. c4 Qxb4 7. e3 d6 8.
    Nf3 (8. Bc3 Qb6 $15) 8... e5 (8... Bf5 9. Nc3 $17) 9. Qc2 Na6 (9... Nf6 10. Bc3
    Qb6 11. d4 $15) 10. Be2 (10. Bc3 Qb6 $15) 10... Be7 (10... Nc5 11. Bc3 Qa4 12.
    Qxa4 Nxa4 13. d4 $17) 11. O-O (11. Bc3 Qb6 $11) 11... Nf6 $15 12. h3 (12. Nc3
    O-O $15) 12... O-O 13. Bc3 Qb6 14. d3 c5 (14... Bf5 15. e4 Be6 16. Nbd2 $17)
    15. Na3 Bd7 16. Rb1 Qa7 (16... Qc6 17. Nd2 Qc8 18. Bf3 $15) 17. Qb2 Bc6 18. Nd2
    (18. Nb5 Qb8 $15) 18... Nc7 (18... Ra8 19. Nb5 Qb6 20. Ra1 $15) 19. Bf3 (19.
    Ra1 Ra8 $15) 19... Bxf3 (19... Ra8 20. Ra1 $15) 20. Nxf3 Rb8 (20... Qa4 21. Nc2
    $15) 21. Nb5 (21. Ra1 Ra8 $11) 21... Nxb5 $15 22. Qxb5 b6 (22... Qa2 23. Qb3
    Qxb3 24. Rxb3 $15) 23. Ra1 Qd7 24. Qxd7 Nxd7 25. Ra7 Rd8 26. Rb7 (26. g4 g5 $11
    ) 26... Kf8 (26... f5 27. g4 $11) 27. e4 (27. Kf1 Bf6 $11) 0-1
    
    [Event "corr ICCF"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Muster, Wolfgang"]
    [Black "Diener, Rudolf"]
    [Result "1/2-1/2"]
    [PlyCount "64"]
    [EventDate "1989.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. a3 axb4 4. axb4 Rxa1 5. Bxa1
    Qb6 6. c4 Qxb4 7. e3 Nf6 8. Bd3 (8. Nf3 d6 9. Be2 (9. Bd3 Bg4 10. O-O Na6 11.
    Be2 e5 12. Bc3 Qb6 13. Na3 Be7 14. Qb1 Qc7 15. h3 Bh5 16. g4 Bg6 17. Qb2 Nc5
    18. d4 Na4 19. Qb3 Nxc3 20. Qxc3 Ne4 21. Qb2 exd4 22. Nxd4 O-O 23. Bf3 d5 {
    bratek55 (1730)-srtiatum (1745)/kurnik 2011/0-1 (56)}) 9... e5 10. O-O Be7 11.
    d4 exd4 12. Bxd4 Nbd7 13. Nc3 O-O 14. Qa1 Bd8 15. Rb1 Qa5 16. Qb2 c5 17. Ra1
    Qb6 18. Na4 Qxb2 19. Bxb2 Ne4 20. Ne1 Nb6 21. Nxb6 Bxb6 22. f3 Ng5 {
    Baranov,G (2290)-Bochkarev,A (2510)/Chigorin mem 1998/0-1 (40)}) 8... d5 $146 (
    8... g6 9. Nc3 Bg7 10. Ne4 d6 11. Nxf6+ Bxf6 12. Bxf6 exf6 13. Nf3 Bg4 14. Qa1
    O-O 15. Qxf6 Nd7 16. Qd4 Bxf3 17. gxf3 Ra8 18. O-O Ne5 19. Be2 Ra2 20. Rd1 Rc2
    21. Kg2 Qc5 22. Qxc5 dxc5 23. Rb1 {
    Wolf-Pfretzschner,R/corr DDR-ch 1978/1-0 (59)}) (8... e6 9. Nc3 d5 10. cxd5
    exd5 11. Nge2 Bd6 12. O-O Bxh2+ 13. Kh1 Qh4 14. Ng1 Bxg1+ 15. Kxg1 Ng4 16. Qxg4
    Qxg4 17. Rb1 b5 18. f3 Qg5 19. f4 Qg4 20. Be2 Qg6 21. Rc1 O-O 22. Bb2 Bf5 {
    0-1 Bivens,W-Rudbeck,J/corr ICCF TT-4-90 SF 1995}) 9. Qc2 Be6 10. cxd5 (10. c5
    Nbd7 11. Bd4 Ne4 12. Bxe4 dxe4 $19) 10... Bxd5 11. f3 Nbd7 12. Ne2 e5 13. O-O
    Bd6 14. Nbc3 Qh4 (14... Bb3 15. Qc1 $19) 15. Nxd5 Nxd5 16. Ng3 Nb4 17. Qc4 (17.
    Qc3 $5 $17) 17... Qxc4 18. Bxc4 b5 19. Be2 O-O 20. Nf5 Bc5 21. f4 g6 (21... f6
    $5 $17) 22. Nh6+ $11 Kg7 23. Ng4 h5 24. fxe5 hxg4 25. e6+ Kg8 26. exd7 f5 $4 (
    26... Rd8 27. Bf6 Rxd7 28. d4 $11) 27. Bxg4 $4 (27. Bf6 $142 $1 Bb6 28. Be7 $18
    ) 27... Rd8 $11 28. Bf3 Rxd7 29. d4 Bf8 30. Rc1 {
    Attacks the backward pawn on c6} Ra7 31. Bc3 Nd5 (31... Bh6 32. Kf1 Nd5 33. Bd2
    Nxe3+ 34. Bxe3 Bxe3 35. Rxc6 $11) 32. e4 (32. Bd2 $142 $5 Ne7 33. Kf2 $14)
    32... Nxc3 1/2-1/2
    
    [Event "?"]
    [Site "?"]
    [Date "1981.??.??"]
    [Round "?"]
    [White "De Visser, Arno"]
    [Black "Diener, Rudolf"]
    [Result "*"]
    [PlyCount "60"]
    [EventDate "1981.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. a3 axb4 4. c4 bxa3 (4... bxc3 5. Nxc3 Nf6 6. e4 $17) 5.
    Nxa3 d5 6. Nf3 Nf6 7. e3 e6 8. Qb3 Nbd7 9. Be2 dxc4 10. Nxc4 Rxa1+ 11. Bxa1 Be7
    12. O-O O-O 13. d4 Qc7 14. Rc1 Nd5 15. e4 (15. Bd3 Rd8 $15) 15... Qf4 (15...
    Nf4 16. Bf1 $15) 16. Qb1 $15 N5f6 (16... N5b6 17. Nce5 $15) 17. e5 (17. Bd3 Rd8
    $15) 17... Ng4 (17... Nd5 $5 $15) 18. Bc3 $11 Qf5 (18... b5 $5 19. Bd2 Qf5 20.
    Qxf5 exf5 $11) 19. Bd3 $14 Qh5 20. h3 Nh6 21. Bxh7+ Kh8 22. Bd3 f5 (22... Nf5
    23. Bb4 $16) 23. Nb6 (23. Na5 $5 Ba3 24. Rc2 Rf7 $16) 23... Nxb6 $16 24. Qxb6
    g5 (24... Nf7 25. Bb4 Bxb4 26. Qxb4 $16) 25. Bb4 Bd8 26. Qc5 Rg8 {
    Black intends g4} 27. Be2 (27. Ra1 g4 28. hxg4 Qxg4 $16) 27... g4 28. Nh2 (28.
    hxg4 $5 Qxg4 29. g3 $16) 28... Qg5 $11 29. Rc3 gxh3 30. Rg3 Qh4 (30... Qh4 31.
    Nf3 h2+ 32. Kh1 Qe4 33. Rxg8+ Nxg8 $16) *
    
    [Event "corr ICCF T-19-F"]
    [Site "?"]
    [Date "1979.??.??"]
    [Round "?"]
    [White "De Visser, Arno"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "82"]
    [EventDate "1979.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. a3 axb4 4. c4 bxc3 $17 5. Nxc3 Nf6 6. e4 e5 7. Nf3 Bd6 (
    7... Qb6 8. Nxe5 Bc5 9. f3 $15) 8. Bc4 (8. d4 exd4 9. Qxd4 Qe7 $17) 8... h6 (
    8... b5 9. Be2 $15) 9. O-O (9. d4 exd4 10. Nxd4 b5 $15) 9... O-O (9... Bc7 $142
    $11) 10. Nh4 $2 (10. d4 Qb6 11. Bc1 exd4 12. Nxd4 $15 (12. Qxd4 $2 Qxd4 13.
    Nxd4 Be5 $19)) 10... b5 (10... Bc5 11. Qf3 $17) 11. Ba2 (11. Bb3 Bc7 12. Nf3 d5
    13. exd5 e4 $17) 11... Bc7 {Black gets strong initiative} 12. g3 (12. Re1 d6
    $17) 12... d6 13. d4 Bh3 (13... exd4 14. Qxd4 Bb6 15. Qd3 $17) 14. Re1 exd4 15.
    Qxd4 Bb6 16. Qd3 (16. Qd2 Bc5 $17) 16... Ng4 $19 17. Nd1 (17. Re2 Ne5 18. Qc2
    Bg4 $19) 17... Re8 (17... Ne5 18. Qc2 $19) 18. Ng6 Nf6 (18... Ne5 19. Nxe5 dxe5
    20. Qxd8 Rxd8 21. Bxe5 $17) 19. Nf4 $17 Bf5 20. Nc3 Bh7 21. Rad1 (21. Qf3 $5
    Bd4 22. Bb1 d5 $19) 21... d5 $1 22. Nfxd5 (22. Qxd5 cxd5) 22... cxd5 23. Nxd5 (
    23. Bxd5 Nxd5 24. Nxd5 Ba5 $19) 23... Ng4 (23... Nxe4 $142 24. Nxb6 Qxb6 $19)
    24. Qxb5 $4 (24. Nxb6 $142 Qxb6 25. Qf3 $17) 24... Bxf2+ $19 25. Kf1 Nd7 $4 (
    25... Bxe1 26. Nf6+ Nxf6 27. Rxd8 Rxd8 28. Qb3 $19) 26. Nc7 Re7 (26... Qxc7 {
    Decoy theme: c7} 27. Rxd7) 27. Nxa8 Bxe1 28. Rxe1 Qxa8 29. Bd5 Qa7 (29... Nxh2+
    $6 30. Kg2 Qa7 31. Qb4 $15) 30. Qe2 Ndf6 31. Bxf6 Nxf6 32. Qf3 (32. Qd3 Qa4 $19
    ) 32... Nxd5 (32... Qa6+ 33. Kf2 Qa4 34. h3 $19) 33. exd5 Rxe1+ (33... Qa6+ 34.
    Kf2 Qb6+ 35. Kf1 Bd3+ 36. Qxd3 Qf6+ 37. Kg2 Rxe1 38. d6 $19) 34. Kxe1 Qg1+ 35.
    Ke2 (35. Qf1 Qe3+ 36. Qe2 Qc1+ 37. Kf2 Qxa3 38. Qe8+ Qf8 $19) 35... Qxh2+ 36.
    Ke3 (36. Ke1 Kf8 $19) 36... Qg1+ (36... Qb2 $142 $5 37. a4 Qe5+ 38. Kd2 $19)
    37. Ke2 Bc2 38. Kd2 Ba4 (38... Bg6 39. Ke2 $19) 39. Qg4 $2 (39. d6 Qd4+ 40. Qd3
    Qb2+ 41. Ke1 Qe5+ 42. Kf2 $19) 39... Qf2+ 40. Kc3 Qc5+ 41. Kb2 (41. Qc4 Qxa3+
    42. Kd2 $19) 41... Qc2+ (41... Qc2+ 42. Ka1 Qc3+ 43. Ka2 Bb3+ 44. Kb1 Qc2+ 45.
    Ka1 Qc1#) 0-1
    
    [Event "corr"]
    [Site "?"]
    [Date "1983.??.??"]
    [Round "?"]
    [White "Schuehler, Ernst"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "88"]
    [EventDate "1983.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. b5 cxb5 4. e3 b4 5. a3 Nc6 6. axb4 Nxb4 7. Ba3 Nc6 8. Nc3
    Nf6 9. Nf3 d6 10. Rb1 (10. Bb5 d5 $15) 10... e6 11. Na4 Nd7 12. Bb5 Qc7 13. O-O
    Be7 14. c4 O-O 15. d4 Na7 16. Bxd7 Bxd7 (16... Qxd7 $2 17. Nb6 Qc6 18. Nxa8 $18
    ) 17. Nb6 Rab8 18. Qd2 a4 (18... Nb5 19. Ne5 Nxa3 20. Nexd7 Nxc4 21. Qc3 $11)
    19. Qb4 Bb5 (19... Rfd8 20. d5 $15) 20. Qa5 $11 Ba6 21. Qxa4 Rfd8 22. Rfc1 Nc8
    23. c5 Nxb6 (23... dxc5 24. Bxc5 Bd3 25. Ba3 Nxb6 26. Qb3 $11 (26. Rxc7 $2 Nxa4
    (26... Bxb1 $2 27. Qb5 Bxa3 28. Qxb1 $18) 27. Bxe7 Bxb1 28. Bxd8 Rxd8 $19)) 24.
    cxb6 $14 Qd7 25. Qxd7 Rxd7 26. Rc3 (26. Rc7 Rxc7 27. bxc7 Rc8 $14) 26... Bd8
    27. e4 f6 (27... Ra8 28. Rbb3 $14) 28. h3 (28. d5 exd5 29. exd5 Kf7 $16) 28...
    Be2 (28... d5 29. e5 $14) 29. Nd2 Ra8 {Black fights for the Initiative} 30. f3
    Ra4 31. Kf2 Ba6 32. Ke3 f5 33. f4 (33. Rbb3 e5 34. Rc8 f4+ 35. Kf2 Rxd4 $17)
    33... Rxd4 $1 $17 34. Rbb3 (34. Kxd4 {Decoy theme: d4} Bf6+ {
    Theme: Double Attack}) 34... Ra4 35. Rc8 (35. exf5 exf5 36. Rc8 d5 $17) 35...
    Kf7 $19 36. Bb2 fxe4 37. Nxe4 Bc4 38. Rc7 Ke8 39. Rxc4 (39. Rc3 d5 40. R3xc4
    Rxc4 (40... dxc4 $6 41. Rxd7 Bxb6+ 42. Rd4 $15) 41. Rxc4 dxc4 $19 (41... dxe4
    42. Bd4 $14)) 39... Rxc4 40. Bd4 Rc6 41. Rb5 h6 (41... d5 42. Nc5 Rxb6 43. Rxb6
    Bxb6 44. Nxe6 Bxd4+ 45. Kxd4 $19) 42. Kf3 (42. Kd2 e5 43. fxe5 dxe5 44. Rxe5+
    Kf7 $19) 42... Kf7 (42... Rf7 43. g3 $19) 43. Be3 (43. Ke3 Bf6 $19) 43... Be7
    44. Bd4 Rd8 (44... Rd8 45. Ke3 Ra8 $19) (44... d5 45. Nc5 Bxc5 46. Bxc5 $19)
    0-1
    
    [Event "corr SOK-89-36"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Hoffmann"]
    [Black "Diener, Rudolf"]
    [Result "*"]
    [PlyCount "74"]
    [EventDate "1989.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. b5 cxb5 4. e3 b4 5. a3 Nc6 6. axb4 Nxb4 7. Ba3 Nc6 8. Nc3
    Nf6 9. Rb1 (9. Nf3 d5 $15) 9... e6 (9... d5 10. f4 $17) 10. Bxf8 $15 Rxf8 11.
    Na4 d6 12. Nf3 Rb8 (12... e5 13. Nb6 Ra7 14. d4 $17) 13. Bb5 Bd7 14. O-O Nb4
    15. Bxd7+ Nxd7 16. d4 (16. c3 Nd3 $15) 16... Qc7 (16... b5 $5 17. c3 Nd5 $17 (
    17... bxa4 $6 18. cxb4 axb4 19. Qxa4 $11)) 17. c3 $11 Nd5 18. Qd3 Qc6 19. Qb5 {
    Attacking the backward pawn on b7} (19. Rb5 $5 $11) 19... Qxb5 (19... Nxc3 $143
    20. Nxc3 Qxc3 21. Rfc1 $14) 20. Rxb5 b6 21. Rfb1 (21. c4 Nc7 22. Rg5 g6 $17)
    21... Ke7 (21... Nc7 22. R5b3 b5 23. e4 $19) 22. c4 Nc7 23. R5b3 Na8 24. Kf1
    Rfc8 25. Nd2 Rc6 (25... d5 26. c5 Rc6 27. Ke2 $17) 26. Ke2 Nc7 27. e4 d5 28. c5
    b5 29. exd5 exd5 30. Nf1 b4 (30... Re6+ 31. Kd3 Re8 32. Nc3 $17) 31. Ne3 $17
    Ke6 (31... Re8 32. Kd3 $17) 32. Kd2 (32. Kd3 Kf6 $17) 32... Nb5 (32... Nf6 33.
    Re1 $17) 33. Nc2 (33. Re1 Nf6 (33... Nxd4 34. Nc2+ Kf6 35. Nxd4 Rxc5 36. Nxc5
    Nxc5 37. Rf3+ Kg6 38. Nc6 $18) 34. Kd3 Kd7 $15) 33... f5 34. Ra1 Ra6 (34... Nc7
    35. Re1+ Kf6 36. Kd3 $17) 35. Nb2 (35. Kd3 Nf6 $17) 35... Rba8 36. Na4 R8a7 37.
    f3 f4 (37... f4 38. Re1+ Kf6 $17) *
    
    [Event "corr"]
    [Site "?"]
    [Date "1983.??.??"]
    [Round "?"]
    [White "Grund, Karl"]
    [Black "Diener, Rudolf"]
    [Result "1/2-1/2"]
    [PlyCount "62"]
    [EventDate "1983.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. bxa5 Qxa5 4. c4 e5 5. Nf3 f6 6. g3 (6. e4 Bb4 $11) 6...
    Bc5 7. e3 Ne7 8. Bg2 Qb4 9. Qb3 Ra4 (9... d5 $5 10. Qxb4 Bxb4 11. cxd5 cxd5 $15
    ) 10. Nc3 $11 Ra5 (10... Qxb3 11. axb3 Rxa1+ 12. Bxa1 $11) 11. O-O O-O (11...
    Qxb3 12. axb3 Bb4 13. d4 $14) 12. d4 $16 exd4 13. exd4 Bd6 14. c5+ Qxb3 15.
    axb3 Rxa1 16. Rxa1 Bc7 17. b4 d5 18. b5 cxb5 (18... Nd7 $5 $14) 19. Nxb5 Na6 (
    19... Bd8 20. Nd6 Nbc6 21. Ra8 $16) 20. Re1 (20. Rxa6 $142 bxa6 21. Nxc7 $18)
    20... Kf7 $16 21. Nxc7 Nxc7 22. Nd2 Be6 23. Nb3 Ra8 24. Ra1 Rxa1+ 25. Bxa1 Nc6
    26. Bc3 Nb5 27. Bb2 Ke7 28. Bf1 Nc7 29. Bd3 g6 30. Bc3 Bg4 31. Na5 Nd8 (31...
    Bf3 $5 $11) 1/2-1/2
    
    [Event "corr ICCF-T/19-F"]
    [Site "?"]
    [Date "1979.??.??"]
    [Round "?"]
    [White "Stabenow, Juergen"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "93"]
    [EventDate "1979.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. bxa5 {verh. 3.a3 axb4 4.axb4 Ta1 5.La1 Db6 6.c3} Qxa5 4.
    e3 e5 5. Nf3 d6 6. Be2 e4 {>= 6.- Nf6 7.0-0 Be7} 7. Nd4 Qg5 8. Bf1 Bg4 9. f3
    Bh5 10. c4 Qh4+ 11. g3 Qf6 12. Qb3 exf3 13. Kf2 Nh6 14. h3 (14. Qxb7 Ng4+ 15.
    Kg1 f2+ 16. Kg2 $13) 14... Qe7 15. Nxf3 Nd7 16. d4 f5 17. Bd3 Nf6 18. Nbd2 Ne4+
    19. Kg2 g5 20. d5 Rg8 21. dxc6 bxc6 22. Bxe4 fxe4 23. Nd4 Rc8 24. a4 g4 25. h4
    Bf7 26. a5 d5 27. a6 Qb4 {W->28.Nc6/Qb7} 28. Qc2 Bg7 29. a7 Kd7 30. Rhb1 Qd6
    31. Bc3 Bxd4 32. Bxd4 Nf5 33. Nf1 Qc7 34. Qb2 Nxd4 35. Qxd4 Ra8 (35... c5 36.
    Qf6) 36. Nd2 Rge8 (36... Rgf8 37. Nxe4) (36... c5 $5) 37. cxd5 Bxd5 38. Nc4 Ke6
    39. Nb6 Rf8 40. Nxa8 Rxa8 41. Qb6 Qf7 42. Rf1 Qe8 43. Qb7 Bc4 44. Rf4 Kd6 45.
    Qb4+ Kd5 46. Rd1+ Bd3 47. Qd4+ 1-0
    
    [Event "corr"]
    [Site "?"]
    [Date "1987.??.??"]
    [Round "?"]
    [White "Sterle, Vincent"]
    [Black "Diener, Diener"]
    [Result "0-1"]
    [PlyCount "36"]
    [EventDate "1987.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. bxa5 Qxa5 4. f4 Qb4 $15 5. Be5 (5. Bc3 Qxf4 6. Nf3 d6 $17
    ) 5... d6 $17 6. c3 $4 (6. a3 Qa5 7. Bc3 $15) 6... Qb2 $19 7. c4 (7. Na3 Rxa3 (
    7... dxe5 $6 8. Nc4 Qb5 9. e4 $19) 8. Bd4 c5 $19) 7... dxe5 8. Nc3 exf4 9. Nh3
    (9. Rb1 Qa3 $19) 9... Bxh3 10. gxh3 Qb6 (10... Ra7 11. Rb1 Qa3 12. Rb3 $19) 11.
    Bg2 (11. Rb1 Qc7 $19) 11... e5 12. Rb1 Qc7 13. Qb3 Ra7 14. Rg1 (14. Rf1 Nf6 $19
    ) 14... Bc5 15. Rf1 Ne7 (15... Nf6 16. Ne4 Nbd7 17. Nxc5 Nxc5 18. Qc2 $19) 16.
    Ne4 Nd7 17. h4 (17. Nxc5 Nxc5 18. Qc2 Ng6 $19) 17... b6 (17... Bd4 $142 $5 18.
    Ng5 $19) 18. a4 (18. Nxc5 Nxc5 19. Qxb6 Qxb6 20. Rxb6 Kd7 $19) 18... O-O (18...
    O-O 19. Nxc5 Nxc5 20. Qxb6 Qxb6 (20... Rxa4 $4 21. Qxc7 Ng6 22. h5 $18) 21.
    Rxb6 Nxa4 $19) (18... Bd4 19. Qb4 $19) 0-1
    
    [Event "corr"]
    [Site "?"]
    [Date "1983.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "de Visser, Arno"]
    [Result "*"]
    [PlyCount "63"]
    [EventDate "1983.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. c3 b5 4. e3 e6 (4... axb4 5. cxb4 Nf6 6. Qf3 $11) 5. Qf3
    (5. a4 bxa4 6. Qxa4 Qb6 $11) 5... d5 6. Na3 (6. a4 bxa4 7. b5 e5 $15) 6... Qf6
    (6... e5 7. Nc2 $15) 7. Nc2 axb4 (7... Bd6 8. a4 $15) 8. Qxf6 Nxf6 9. cxb4 Be7
    10. d4 O-O (10... Ra4 11. a3 $15) 11. Bd3 Nbd7 (11... Ra4 12. Nf3 $11) 12. Nf3
    $11 Ne4 13. Bxe4 (13. O-O Ra4 $11) 13... dxe4 14. Nd2 f5 (14... Nf6 15. O-O $11
    ) 15. O-O (15. a3 Bd6 $11) 15... Bf6 16. f4 (16. f3 $142 exf3 17. Rxf3 $11)
    16... c5 (16... Nb6 $142 $15) 17. bxc5 $16 Nxc5 18. Ba3 (18. dxc5 $143 Bxb2 19.
    c6 Bxa1 20. Rxa1 Rd8 $17) 18... Nd3 19. Bxf8 Kxf8 20. Rfb1 Bd7 21. Ne1 Nxf4 22.
    exf4 Bxd4+ 23. Kf1 b4 24. Nc2 (24. Rxb4 {Theme: Deflection from a1} Bxa1 {
    Annihilates a defender: a1}) 24... Bb5+ (24... Bc3 25. Rd1 $14 (25. Nxb4 $143
    Bxd2 26. a3 Bb5+ 27. Kf2 Bxf4 $15)) 25. Ke1 Bc3 26. Rxb4 Bd3 27. Rb3 Bxa1 28.
    Nxa1 Rxa2 29. Rb8+ Ke7 30. Nab3 e3 31. Nf3 (31. Rb7+ Kf6 32. Nf1 Rxg2 $15)
    31... Rxg2 (31... Rf2 $5 32. Kd1 Be2+ 33. Ke1 Bc4 $15) 32. Nbd4 $11 (32. Nbd4
    Be4 33. Rb3 $14) *
    
    [Event "corr"]
    [Site "?"]
    [Date "1982.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Sterle, Vincent"]
    [Result "*"]
    [PlyCount "45"]
    [EventDate "1982.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. c3 b5 4. e3 e6 5. Qf3 Nf6 6. Bxb5 axb4 7. cxb4 Nd5 8. Bc4
    Nxb4 9. Qd1 d5 10. a3 dxc4 11. axb4 Rxa1 12. Bxa1 Na6 13. Qa4 (13. Nf3 $5 Nxb4
    14. O-O $17) 13... Nxb4 $19 14. Bc3 (14. Nf3 Nd3+ 15. Ke2 Qd5 $19) 14... Nd3+
    15. Ke2 Qd5 16. Nf3 Be7 (16... e5 $142 $19) 17. Bxg7 $15 Rg8 18. Nc3 Nc5 (18...
    Qd6 $142 $5 19. Qxc4 Nb2 $15) 19. Nxd5 $11 Nxa4 20. Nxe7 Kxe7 21. Bd4 (21. Be5
    Rxg2 22. Ra1 Nc5 23. Ra7+ Nb7 $11) 21... c5 22. Be5 f6 23. Ra1 (23. Ra1 Bd7 24.
    Bg3 $11) *
    
    [Event "corr"]
    [Site "?"]
    [Date "1982.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Schuehler, Ernst"]
    [Result "0-1"]
    [PlyCount "66"]
    [EventDate "1982.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. c3 e5 4. c4 axb4 {Black launches an attack} 5. Bxe5 d5 6.
    e3 (6. cxd5 Qxd5 7. Nf3 Nd7 $15) 6... Nd7 (6... Be6 7. cxd5 Bxd5 8. d4 $15) 7.
    Bb2 (7. Bd4 Ngf6 $15) 7... Nb6 8. Qc2 (8. cxd5 $5 Nxd5 9. Nf3 $15) 8... dxc4
    $17 9. Bxc4 Nxc4 10. Qxc4 Be6 11. Qe4 Nf6 12. Qc2 (12. Qf4 Be7 $17) 12... Qd5 (
    12... Rxa2 13. Nf3 $19) 13. f3 (13. Nf3 Rxa2 14. Rxa2 Qxa2 $17) 13... Bf5 (
    13... Rxa2 $5 14. Rxa2 Qxa2 $17) 14. Qd1 $17 Bd3 15. a3 (15. Nh3 Be7 $17) 15...
    Qc4 (15... Qg5 16. g3 $17) 16. axb4 Rxa1 17. Bxa1 Nd5 18. Ne2 (18. Nc3 Nxb4 19.
    Kf2 Bc2 $19) 18... Nxb4 (18... Bxe2 $142 $5 19. Qxe2 Qa2 $19) 19. Kf2 $17 Bc2 (
    19... Bd6 20. Nd4 $17) 20. Qf1 Nd3+ 21. Kg3 (21. Kg1 Qb4 22. Nbc3 c5 $17) 21...
    Bd6+ $19 22. f4 Rg8 23. h4 g5 24. hxg5 Rxg5+ 25. Kh2 Rh5+ 26. Kg3 Rxh1 (26...
    Qb5 27. Nbc3 Qg5+ 28. Kf3 $17) 27. Qxh1 $17 Nc5 (27... h5 28. Nbc3 b5 29. Qxh5
    $19) 28. Nec3 (28. Nd4 Bg6 $17) 28... Nb3 (28... Qe6 29. Kh2 $17) 29. Bb2 $17
    Qd3 30. Qh3 Kd8 (30... Bxb1 $6 31. Qc8+ Ke7 32. Qxb7+ Kf8 33. Qxb3 Qxd2 34.
    Nxb1 Qe1+ 35. Kg4 h5+ 36. Kf5 (36. Kxh5 Qh1+ 37. Kg4 Qxg2+ 38. Kh5 Qf3+ 39. Kg5
    Bxf4+ 40. exf4 Qxb3 41. Ba3+ Ke8 $19) 36... Qxb1+ 37. e4 $11) 31. Qh6 (31. Qh1
    $142 $19) 31... Be7 (31... Bxb1 $6 32. Nxb1 Nc5 33. Bf6+ Ke8 34. Nc3 $19) (
    31... Nxd2 $6 32. Nxd2 Qxd2 33. Qf6+ Ke8 34. Qd4 Qxd4 35. exd4 $19) 32. Qh1 b5
    33. Na3 b4 (33... b4 34. Nxc2 bxc3 35. Bxc3 Qxc2 $19) (33... Qxd2 $6 34. Nxc2
    Qxc2 35. Qd1+ Qxd1 36. Nxd1 $19) 0-1
    
    [Event "corr"]
    [Site "?"]
    [Date "1982.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Muster, Wolfgang"]
    [Result "1-0"]
    [PlyCount "53"]
    [EventDate "1982.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. c3 (3. bxa5 Nf6 $11) 3... e6 4. e3 Nf6 5. b5 c5 6. a4 d5
    7. c4 Nbd7 8. Nf3 b6 9. d3 Bb7 10. Nbd2 Be7 11. Be2 O-O 12. O-O Re8 13. Ne5 Qc7
    14. f4 Nxe5 15. Bxe5 Qd8 16. Bf3 Bd6 17. Bb2 Rb8 18. g3 Bf8 (18... e5 19. fxe5
    Bxe5 20. d4 cxd4 21. exd4 $11) 19. Qe2 g6 (19... d4 20. Bxb7 Rxb7 21. exd4 cxd4
    22. Nb3 $11) 20. Rad1 Bg7 21. Be5 Ra8 22. d4 cxd4 23. Bxd4 Nd7 24. Nb3 Bxd4 25.
    Nxd4 (25. Rxd4 Qe7 $16) 25... Nf6 (25... Nc5 26. cxd5 exd5 27. Nc6 Bxc6 28.
    bxc6 Nxa4 29. Rd4 $11 (29. Rxd5 $143 Nc3 30. Rxd8 Nxe2+ 31. Kf2 Rexd8 32. Kxe2
    Ra7 $17)) 26. Qg2 (26. cxd5 exd5 27. f5 Rc8 $14) 26... Rc8 $11 27. cxd5 (27.
    cxd5 exd5 28. Rd3 $11) 1-0
    
    [Event "corr"]
    [Site "?"]
    [Date "1983.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Grund, Karl"]
    [Result "1-0"]
    [PlyCount "59"]
    [EventDate "1983.??.??"]
    
    1. b4 c6 2. Bb2 a5 3. c3 Qb6 4. Qb3 d5 5. e3 a4 6. Qc2 e5 7. a3 Nf6 8. c4 Nbd7
    9. Nc3 Qa7 (9... d4 $142 $5 10. exd4 exd4 $11 (10... Qxd4 $2 11. Nd5 (11. Nxa4
    $6 Qe4+ 12. Qxe4 Nxe4 $16) 11... Qa7 12. Nc7+ Kd8 13. Nxa8 $18)) 10. cxd5 $16
    Nxd5 (10... cxd5 $2 11. Nb5 Qb8 12. Nc7+ Kd8 13. Nxa8 Qxa8 14. Bb5 $18) 11.
    Nxd5 cxd5 12. Bb5 Bd6 13. Qf5 Ke7 (13... Qb6 $142 $5 14. Bxe5 Qxb5 15. Bxd6 Ra6
    $16) 14. Qg5+ $18 Nf6 15. Bxe5 Bxe5 16. Qxe5+ Be6 17. Ne2 Qb8 18. Qxb8 (18. Qd4
    Qa7 $18) 18... Rhxb8 $16 19. Nc3 Bd7 20. Bxd7 Kxd7 21. f3 Re8 22. Kf2 Re6 23.
    Rab1 Rc6 24. Rhc1 Ke6 25. b5 Rc4 26. d3 Rcc8 27. Rb4 Nd7 28. Ke2 Nb6 29. Kd2 f5
    30. Rcb1 (30. Rcb1 Rc7 31. e4 $16) (30. e4 $5 $18) 1-0
    
    [Event "corr SOK-87-08"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Stabenow, Juergen"]
    [Result "0-1"]
    [PlyCount "122"]
    [EventDate "1989.??.??"]
    
    1. b4 c6 2. Bb2 d5 3. e3 Nf6 4. Nf3 Bf5 5. Nh4 Bg6 (5... Bg4 6. f3 Bd7 7. g4
    $15) 6. Nxg6 $11 hxg6 7. d4 e6 8. a3 Qc7 9. g3 Nbd7 10. f4 (10. c4 Bd6 $11)
    10... Ne4 11. Bg2 Ndf6 12. Nd2 Nd6 13. Qe2 Be7 14. g4 O-O-O 15. g5 Nd7 16. Qd3
    (16. c4 $5 $11) 16... Nb6 $15 17. Kf2 (17. O-O-O Rh7 $15) 17... Ndc4 18. Nxc4
    Nxc4 19. Bc1 Rh4 20. h3 Nd6 21. Bd2 Nf5 (21... Rdh8 22. Rhb1 $17) 22. Be1 (22.
    c4 Nd6 23. cxd5 exd5 $11) 22... f6 23. Kg1 (23. Ke2 Rh7 24. gxf6 gxf6 $15)
    23... Rh7 24. gxf6 gxf6 25. c4 Kb8 26. Rc1 {White prepares the advance c5} Qd7
    27. c5 Rg8 28. Kf1 g5 29. e4 dxe4 30. Bxe4 Rh6 (30... gxf4 31. b5 cxb5 32. Bxf5
    exf5 33. Bf2 $17) 31. Bxf5 (31. b5 cxb5 32. fxg5 fxg5 33. c6 $15) 31... exf5
    $19 32. Bg3 Kc8 33. Re1 Rgh8 (33... Re8 34. Qe3 g4 35. Qe6 Rxh3 36. Qxd7+ Kxd7
    37. Rxh3 gxh3 38. Kg1 $17) 34. Kg2 (34. Qe3 R6h7 $17) 34... Qd5+ (34... R6h7 $5
    $17) 35. Qf3 $15 Qxf3+ (35... Qf7 $5 $15) 36. Kxf3 $11 Bd8 37. Kg2 Bc7 38. Ref1
    Rg6 39. Kf3 gxf4 {The passed pawn on h3 will quickly become a dangerous weapon}
    (39... Rh7 $5 $11) 40. Bf2 $14 Kd7 41. Re1 Rgg8 42. h4 a5 43. Re2 (43. bxa5
    $142 $5 Ra8 44. Reg1 $14) 43... axb4 $11 44. axb4 Ra8 45. Rb2 (45. Kg2 $142 $5
    $11) 45... Ra3+ $17 46. Ke2 f3+ 47. Kd2 Bf4+ (47... Re8 48. Kc2 $17) 48. Kc2
    Be3 49. Bxe3 Rxe3 50. Rbb1 Re2+ (50... Rg8 $5 51. Kd2 f4 $17) 51. Kc3 Rhe8 {
    Threatening mate: R8e3} 52. Rbd1 f2 53. Rhf1 (53. Kc4 Re1 54. d5 $19) 53... Re1
    $17 54. Kd2 R1e2+ $4 (54... R8e2+ 55. Kd3 Re4 56. Kc2 Rxd1 57. Kxd1 Rxd4+ 58.
    Ke2 Rxb4 59. Rxf2 $19) 55. Kc1 (55. Kc3 $142 $11) 55... Ra8 $19 {
    Do you see the mate threat?. Black gets deadly initiative} 56. Kb1 Ke6 57. h5
    Kf7 (57... Ra3 58. Rh1 Rb3+ 59. Ka1 $19) 58. d5 (58. b5 Kg7 $17) 58... cxd5 59.
    b5 $2 (59. Rxd5 $142 Rae8 60. Rd7+ Kg8 61. Rdd1 $19) 59... Ra5 $19 60. Rxd5
    Rxb5+ 61. Kc1 Re1+ (61... Re1+ 62. Rd1 Rxc5+ 63. Kb2 Rce5 $19) 0-1
    
    [Event "DDR corr"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Lietzke, Horst"]
    [Result "1/2-1/2"]
    [PlyCount "100"]
    [EventDate "1985.??.??"]
    
    1. b4 c6 2. Bb2 Qb6 3. a3 a5 4. c4 axb4 5. c5 Qc7 6. axb4 Rxa1 7. Bxa1 b6 8.
    Nc3 Na6 $146 (8... bxc5 9. bxc5 e5 10. Nf3 Bxc5 11. Ne4 Bd4 12. Nxd4 exd4 13.
    Bxd4 f6 14. e3 Ne7 15. Nxf6+ gxf6 16. Qh5+ Kd8 17. Bxf6 Re8 18. Bd3 d5 19. Bxh7
    Nd7 20. Bc3 Qb7 21. O-O Nf8 22. f4 Qb5 23. Rb1 {
    xadrezpg (2290)-pawnraider (2345)/net-chess.com 2010/1-0}) 9. cxb6 Qxb6 10. b5
    cxb5 11. Qb1 Nc7 12. e3 {Increasing the pressure on the isolated pawn on b5}
    Ba6 13. Na4 Qa5 (13... Qg6 $5 14. Bd3 Qxg2 $15) 14. Nc5 $11 b4 15. Nxa6 Nxa6
    16. Bd3 (16. Nf3 Nf6 $11) 16... e6 17. Nf3 Nc5 18. Ke2 (18. Bxh7 $4 Rxh7 19.
    O-O f5 $19) 18... Nxd3 19. Qxd3 f6 20. Rc1 Ne7 21. Bd4 Nc6 22. Ra1 Nxd4+ 23.
    Qxd4 Qb5+ 24. d3 (24. Qd3 $5 Qc6 25. Nd4 Qxg2 26. Qa6 $11) 24... Bc5 $17 25.
    Qg4 O-O 26. Nd4 $4 (26. Qc4 $142 Qxc4 27. dxc4 $17) 26... Bxd4 $19 27. Qxd4 b3
    (27... Rc8 $142 $5 28. Ra7 Rc2+ 29. Kd1 Rxf2 30. Rxd7 Rxg2 31. Rd8+ Kf7 32.
    Qd7+ Qxd7 33. Rxd7+ Kg6 $19) 28. Qc4 Qe5 29. Rb1 Qxh2 30. g3 Ra8 31. Qxb3 Qh5+
    32. Kd2 Qa5+ 33. Ke2 Qa2+ 34. Rb2 Qxb3 35. Rxb3 Ra7 36. d4 d5 37. f4 f5 38. Kf3
    Kf7 39. Rb1 Kf6 40. Rh1 g6 41. Re1 h5 42. Rh1 Rh7 43. Rh2 g5 44. fxg5+ Kxg5 45.
    Rh4 Rg7 46. Rh3 Kh6 47. Kf4 Rg4+ 48. Kf3 Kg5 49. Rh2 h4 50. Rxh4 Re4 (50...
    Rxh4 51. gxh4+ Kh5 52. Kf4 $18) 1/2-1/2
    
    [Event "corr EU-M-1066"]
    [Site "?"]
    [Date "1995.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Selleri, Claudio"]
    [Result "1/2-1/2"]
    [PlyCount "54"]
    [EventDate "1995.??.??"]
    
    1. b4 c6 2. Bb2 Nf6 3. e3 d5 4. Nf3 Bf5 5. c4 e6 6. a3 Bd6 (6... dxc4 7. Bxc4
    b5 8. Bb3 $15) 7. cxd5 (7. c5 Bc7 $11) 7... exd5 8. Be2 Bg6 (8... a5 9. b5 $11)
    9. Nh4 Nbd7 10. Nxg6 hxg6 11. h3 Qe7 12. Nc3 a6 13. d4 Ne4 14. Qc2 Nxc3 15.
    Bxc3 Nf6 16. Bf3 (16. Rc1 Ne4 $11) 16... O-O (16... g5 17. Rg1 $11) 17. h4 Ne4
    18. Bb2 (18. Bxe4 dxe4 19. h5 gxh5 20. Rxh5 Rae8 $14) 18... a5 19. bxa5 (19. b5
    cxb5 20. Qb3 Rfc8 $11) 19... Rxa5 20. a4 Bb4+ 21. Ke2 Nd2 (21... Rfa8 22. h5
    $11) 22. h5 $11 Nxf3 (22... gxh5 23. Rxh5 g6 24. Rh3 $11) 23. gxf3 g5 (23...
    gxh5 24. Qf5 g6 25. Qxh5 Kg7 $15 (25... gxh5 $4 26. Rag1+ Qg5 27. Rxg5+ Kh7 28.
    Rhxh5#)) 24. Rhg1 (24. h6 $5 g6 25. h7+ Kh8 26. Qb3 $11) 24... Rfa8 $15 25. Rg4
    Bd6 26. Kd2 (26. Bc3 R5a6 $15) 26... Qf6 27. Ke2 Qe7 (27... R5a6 $5 $15)
    1/2-1/2
    
    [Event "corr ICCF EU-M-1175"]
    [Site "?"]
    [Date "2001.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Skorna, Ullrich"]
    [Result "0-1"]
    [PlyCount "68"]
    [EventDate "2001.??.??"]
    
    1. b4 d5 2. e3 e5 3. a3 Be6 (3... Nf6 4. d4 e4 5. c4 $15) 4. Bb2 Nd7 5. Nf3 e4
    (5... Qf6 6. Nc3 $15) 6. Nd4 $11 Ngf6 7. Nxe6 fxe6 8. c4 (8. d3 exd3 9. Bxd3
    Bd6 $11) 8... c6 (8... Bd6 9. d3 $11) 9. Be2 (9. d3 exd3 10. Bxd3 Bd6 $11) 9...
    Bd6 $11 10. Bh5+ (10. c5 Be5 11. Bxe5 Nxe5 $11) 10... Kf8 (10... Nxh5 11. Qxh5+
    g6 12. Qh3 $11) 11. Be2 Rc8 (11... dxc4 12. Bxc4 Ne5 13. Be2 $11) 12. Nc3 (12.
    c5 Be5 13. Nc3 Kf7 $14) 12... Ne5 (12... Kf7 13. c5 Bb8 14. d3 $14) 13. c5 Bb8
    14. O-O (14. Qc2 Kf7 $11) 14... Qc7 $11 {Threatening mate... how?} 15. g3 h5 (
    15... Kg8 16. Ra2 $11) 16. f4 (16. h4 $5 $14) 16... exf3 $11 17. Bxf3 Nd3 (
    17... h4 18. Ne2 $11) 18. Rb1 (18. Qc2 Nxb2 19. Qxb2 h4 $15) 18... h4 $15 {
    Black is in command} 19. Ne2 hxg3 20. hxg3 Nxb2 21. Rxb2 Qe5 22. Rb3 (22. Qc2
    Qg5 23. Kg2 Qh6 $15) 22... Qg5 23. Kg2 Ke7 24. d4 (24. b5 $5 $15) 24... Rh6 25.
    Rh1 Rch8 26. Rxh6 Qxh6 (26... gxh6 $6 27. b5 $11) 27. Qg1 (27. Kf1 Qh3+ 28. Bg2
    Qg4 $17) 27... Qh3+ 28. Kf2 Qf5 29. Kg2 Ne4 (29... Bxg3 30. Nf4 Bxf4 31. exf4
    Qxf4 32. Kf1 Qc1+ 33. Kf2 Qd2+ 34. Kf1 $19) 30. Bxe4 Qxe4+ 31. Kf2 Qf5+ 32. Ke1
    Qf3 {Black intends Rh1} 33. Kd2 Rh1 34. e4 Qxe2+ $3 (34... Qxe2+ 35. Kxe2 Rxg1
    $19) (34... Qxb3 35. Qxh1 Qb2+ 36. Ke3 Qxa3+ 37. Kf2 dxe4 38. Qxe4 Qxb4 39.
    Qh4+ Kd7 40. Qg5 $11) (34... Rxg1 $6 35. Rxf3 dxe4 36. Re3 $11) 0-1
    
    [Event "corr ICCF WT-M"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Proscinski, Mieczyslaw"]
    [Result "1-0"]
    [PlyCount "77"]
    [EventDate "1985.??.??"]
    
    1. b4 d5 2. Bb2 d4 3. Nf3 e5 4. Nxe5 Bxb4 5. c3 dxc3 6. Qa4+ (6. Nxc3 Be7 $11)
    6... c6 7. Nxc3 a5 8. e3 f6 9. Nd3 b5 10. Qb3 Be7 11. Be2 (11. a4 b4 12. Ne4
    Qd5 13. Qxd5 cxd5 $11) 11... a4 12. Qc2 a3 13. Bc1 Qa5 (13... Bf5 14. e4 Bg6
    15. Rb1 $11) 14. Nf4 (14. O-O $142 $14) 14... Nh6 (14... b4 $142 $5 15. Ne4 f5
    $11) 15. Nxb5 $1 $16 g5 (15... cxb5 {Exploits the pin} 16. Qxc8+ {
    A double attack}) 16. Nh5 (16. Nd5 Bf5 17. e4 cxd5 18. exf5 O-O $18) 16... O-O
    (16... Ba6 $5 17. Nd4 Bxe2 18. Nxe2 Qa4 $16) 17. Nd4 $18 Qe5 18. Rb1 Bd7 (18...
    c5 19. Nb5 $18) 19. Bd3 {White launches an attack} f5 20. f4 gxf4 21. Nxf4 Bh4+
    22. g3 Be7 23. Rb3 Ra5 (23... Kh8 24. Bc4 $18) 24. Bc4+ Kh8 (24... Nf7 25. Qc3
    $18) 25. Qc3 (25. Nf3 $142 Qe4 26. Qc3+ Bf6 27. Qxa5 Qxc4 28. Qxa3 c5 $18)
    25... Qe4 (25... Ra7 $18) 26. O-O (26. Qxa5 $6 Qxh1+ 27. Bf1 Ng4 $18) 26... Qe5
    (26... Ra8 27. Bxa3 c5 28. Nde6+ Bf6 29. Nxc5 Qe8 $18) 27. Nd3 Qc7 28. Ne6+ Bf6
    29. Qb4 (29. Qxf6+ Rxf6 30. Nxc7 Ra7 $18) 29... c5 30. Ndxc5 Nc6 (30... Qa7 31.
    Nxd7 Nxd7 32. Nxf8 $18) 31. Nxc7 (31. Nxf8 Nxb4 32. Ncxd7 Qxc4 33. Nxf6 Ng4 34.
    Nxg4 fxg4 35. Bxa3 Nd3 $18) 31... Nxb4 32. Nxd7 Rc8 (32... Nxa2 33. Nxf8 Nxc1
    34. Rb8 Ne2+ 35. Bxe2 $18) 33. Nxf6 Rxc7 34. Rxb4 Rc6 35. Nh5 Rc8 36. d3 Rca8
    37. Bd2 Ng4 38. Bc3+ Ne5 {Black threatens to counter with h6} 39. Ra4 $1 (39.
    Ra4 h6 40. Bxa5 $18) 1-0
    
    [Event "corr ICCF WT-M-461"]
    [Site "?"]
    [Date "1993.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Hoyer, Bernd Wilhelm"]
    [Result "*"]
    [PlyCount "99"]
    [EventDate "1993.??.??"]
    
    1. b4 d5 2. Bb2 e6 3. e3 Nf6 4. a3 Be7 5. c4 dxc4 (5... Nbd7 6. Nf3 $15) 6.
    Bxc4 $11 O-O 7. Nf3 b6 (7... Bd7 8. O-O $11) 8. d3 (8. O-O a5 $11) 8... Bb7 9.
    Nbd2 Nbd7 10. e4 (10. Rc1 a6 $11) 10... c5 11. b5 h6 (11... a6 12. O-O $11) 12.
    O-O a6 13. Qb3 axb5 (13... Qc7 14. Rfc1 $11) 14. Bxb5 Qc7 15. Rfe1 Bc6 16. Bc4
    (16. Nc4 $5 $11) 16... Ba4 (16... b5 17. Bxb5 Bxb5 18. Bxf6 $17) 17. Qa2 b5 18.
    Bb3 Bxb3 19. Qxb3 Qb8 (19... Rfb8 20. Qc2 $15) 20. Rab1 Rc8 21. Bc3 c4 22. Qxb5
    (22. dxc4 $5 bxc4 23. Qxb8 Nxb8 24. Rb7 Bxa3 25. Ne5 $11) 22... Qxb5 $15 23.
    Rxb5 cxd3 24. Bb4 Bxb4 25. axb4 Ra2 26. Rb7 (26. Ra5 Rcc2 27. Rxa2 Rxa2 $15)
    26... e5 $11 27. Rd1 Rb2 (27... Rcc2 28. Nf1 Rxf2 29. N1d2 $19) 28. Rb5 (28.
    Ne1 $5 Rc3 29. Ndf3 $11) 28... Rcc2 $17 29. Kf1 g5 (29... Kh7 30. Ke1 $17) 30.
    h3 $15 h5 31. Ke1 Nxe4 32. Nxe4 Re2+ 33. Kf1 Rxe4 34. Rd5 Ree2 35. Rxd7 $2 (35.
    Ne1 $142 Rxf2+ 36. Kg1 $17) 35... Rxf2+ $19 36. Kg1 Rxg2+ 37. Kh1 e4 {
    Do you see the mate threat?} 38. Ne1 (38. Nd4 Rh2+ 39. Kg1 Rxh3 $19) 38... Rge2
    (38... Rh2+ $142 $5 39. Kg1 Rxh3 40. Nxd3 exd3 41. R1xd3 Rxd3 42. Rxd3 Rxb4 43.
    Rd5 $19) 39. Rd5 f6 40. Rd7 Rxb4 41. Ra1 {The mate threat is Ra8} Rb8 42. Ng2
    d2 43. Kg1 Rc8 (43... e3 44. Kf1 Rf2+ 45. Kg1 $17) 44. Kf1 Rc1+ 45. Kxe2 {
    Threatening mate... how?} Rxa1 46. Ne3 (46. Rxd2 $5 Kf7 47. Rb2 $17) 46... Rh1
    $19 47. Kxd2 Rxh3 48. Re7 Rh4 (48... Rh2+ 49. Ke1 $19) 49. Kc3 (49. Nd5 Kf8 $17
    ) 49... Rf4 $19 50. Nd5 (50. Kd4 h4 51. Nd5 Rf1 $19) *
    
    [Event "corr SOK-89-43"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Maurer"]
    [Result "1-0"]
    [PlyCount "57"]
    [EventDate "1989.??.??"]
    
    1. b4 d5 2. Bb2 e6 3. e3 Nf6 4. a3 Be7 5. Nf3 O-O 6. c4 Nc6 (6... a5 7. b5 $15)
    7. Qa4 (7. Qc2 Re8 $11) 7... Bd7 (7... a6 8. Nc3 $11) 8. b5 Nb8 9. cxd5 (9. Nc3
    a6 $11) 9... Nxd5 10. Bd3 Bf6 (10... c6 11. O-O $15) 11. Qe4 {
    Threatening mate... how?} g6 12. Ne5 (12. Bxf6 Qxf6 13. Qe5 Qxe5 14. Nxe5 f6
    15. Nxd7 Nxd7 $11) 12... Bxe5 (12... a6 $5 13. a4 Bg7 $11) 13. Qxe5 $14 {
    Threatening mate: Qg7} f6 14. Qg3 (14. Qe4 a6 15. a4 axb5 16. axb5 Rxa1 17.
    Bxa1 c6 $14) 14... c6 15. a4 cxb5 (15... e5 16. O-O $11) 16. axb5 (16. Bxb5
    $143 Bxb5 17. axb5 Qd7 $11) 16... e5 $2 (16... Qe8 $142 17. e4 Nb4 $14) 17.
    Bxg6 $1 $18 hxg6 (17... Bxb5 18. Bd3+ Kh8 19. Bxb5 $18) 18. Qxg6+ Kh8 19. Ra4 {
    Do you see the mate threat?} Nf4 20. exf4 {The mate threat is fxe5} Qe8 21.
    Qh6+ Kg8 22. fxe5 Bf5 23. O-O Nd7 (23... fxe5 24. Qg5+ Qg6 25. Qxg6+ Bxg6 26.
    Rg4 $18) 24. exf6 Qg6 25. Qg7+ Qxg7 26. fxg7 Rfe8 27. Rh4 (27. Rc1 Ne5 28. Bd4
    Nd3 $18) 27... Kf7 (27... Bd3 28. Rc1 Bxb5 29. Na3 $18) 28. Rf4 (28. Na3 a6 $18
    ) 28... Kg6 29. h4 (29. h4 Bd3 30. Rc1 Bxb5 31. h5+ Kh7 32. Kh2 $18) (29. Nc3
    $5 Nf6 $18) 1-0
    
    [Event "corr SOK-87-14"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Grund, Karl"]
    [Result "0-1"]
    [PlyCount "88"]
    [EventDate "1989.??.??"]
    
    1. b4 d5 2. Bb2 f6 3. d4 e5 4. dxe5 (4. a3 exd4 5. Nf3 a5 $11) 4... Bxb4+ $15
    5. Bc3 (5. Nd2 Nd7 6. Ngf3 fxe5 7. Nxe5 Ngf6 $15) 5... Be7 (5... Bxc3+ $5 6.
    Nxc3 d4 (6... fxe5 $6 7. Qxd5 Qe7 8. Nf3 $11) 7. exf6 Nxf6 $17) 6. e3 $11 Be6
    7. Bb5+ c6 8. Bd3 Qc7 (8... Nd7 9. Nf3 fxe5 10. Nxe5 $15) 9. Qh5+ Kf8 (9... Bf7
    10. Qf5 $11) 10. Ne2 (10. Bxh7 $143 Nd7 $15) 10... Nd7 11. Nf4 (11. Nd4 Bf7 12.
    Bg6 fxe5 (12... Bxg6 13. Ne6+ Kf7 14. Nxc7 Bxh5 15. e6+ (15. Nxa8 fxe5 16. Ba5
    Ngf6 $19) 15... Kg6 16. Nxa8 $14 (16. exd7 $143 Rd8 $17)) (12... Nxe5 $4 13.
    Bxf7 g6 14. Bxg6 $18) 13. Bxf7 exd4 $11) 11... Bf7 $11 12. Bg6 hxg6 (12... fxe5
    $5 13. Bxf7 exf4 $11) 13. Qxh8 $14 Nxe5 14. Nd2 Bd6 15. h4 Ng4 16. g3 (16. Ne2
    Re8 $16) 16... Re8 17. O-O c5 18. h5 Bxf4 19. exf4 gxh5 20. Rae1 (20. Nf3 $5
    $15) 20... Rxe1 $17 21. Rxe1 d4 22. Bb2 Qa5 (22... Bxa2 23. Qxh5 Qc8 24. Ne4
    $16) 23. Bc1 Qxa2 24. Nf3 $2 (24. Qh7 g6 25. Ne4 Qxc2 $19) 24... Qd5 (24...
    Qxc2 $142 25. Rf1 Bc4 26. Nxd4 Qd3 (26... cxd4 27. Ba3+ Kf7 28. Qxh5+ Qg6 29.
    Qc5 $17) 27. Ne6+ Bxe6 28. Qxh5 Qd5 29. Qxd5 Bxd5 $19) 25. Nh4 $17 N4h6 26. Qh7
    Ne7 27. Qd3 Nhf5 28. Qe2 (28. Nxf5 Qxf5 29. Qb5 b6 $19 (29... Qxc2 $2 30. Qxb7
    Qc3 31. Qxe7+ Kg8 32. f5 $18)) 28... Kg8 (28... Qc4 29. Qf3 Nxh4 30. gxh4 $19)
    29. Nf3 Qc6 30. Nd2 Nd5 (30... a5 31. Nb3 b6 32. Na1 $19) 31. Ne4 b6 32. Qa6
    Qd7 (32... Nb4 $5 33. Qe2 $19) 33. Bd2 Nfe7 34. Rd1 Qg4 35. Ra1 (35. Re1 Nc8
    $19) 35... h4 36. Qxa7 (36. Nd6 $19) 36... Qf3 37. Qa8+ Kh7 38. Nxf6+ gxf6 39.
    Qf8 Kg6 40. gxh4 Qg4+ 41. Kf1 (41. Kh2 Qxh4+ 42. Kg2 Nxf4+ 43. Bxf4 Bd5+ 44. f3
    Qxf4 45. Rg1 Qxf3+ 46. Kh2+ Kf5 47. Qg7 Qf2+ 48. Kh3 $19) 41... Ne3+ $1 42.
    fxe3 (42. Bxe3 Bc4+) 42... Bc4+ 43. Kf2 dxe3+ 44. Bxe3 Qe2+ (44... Qe2+ 45. Kg1
    Qxe3+ 46. Kg2 Qe2+ 47. Kg1 Qg4+ 48. Kf2 Qxf4+ 49. Ke1 Qe3+ 50. Kd1 Be2+ 51. Ke1
    Bg4+ 52. Kf1 Bh3#) 0-1
    
    [Event "corr 3GMM-11"]
    [Site "?"]
    [Date "1994.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Svensson, Jan"]
    [Result "1-0"]
    [PlyCount "13"]
    [EventDate "1994.??.??"]
    
    1. b4 d5 2. Bb2 f6 3. e3 e5 4. Qh5+ (4. a3 Bd6 $15) 4... g6 5. Qh4 Be6 (5...
    Bf5 6. d3 $15) 6. a3 Ne7 $4 (6... Nd7 $142 $15) 7. Qxf6 $18 (7. Qxf6 Rg8 8.
    Qxe6 $18) 1-0
    
    [Event "corr DDR (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Petzold, Gunter"]
    [Result "1-0"]
    [PlyCount "45"]
    
    1. b4 d5 2. Bb2 f6 3. e3 Bf5 4. c4 c6 (4... e6 5. a3 $11) 5.
    Nc3 (5. cxd5 Qxd5 6. Nc3 Qd6 $11) 5... e5 6. Qb3 Be6 (6... d4 7. exd4 exd4 8.
    Nce2 $11) 7. cxd5 cxd5 8. Bb5+ Nc6 9. e4 (9. Nf3 a6 10. Bxc6+ bxc6 $11) 9...
    Nge7 $15 10. Rc1 Qd6 (10... Kf7 11. Nf3 $15) 11. Qa4 g6 (11... a6 12. exd5 Bxd5
    13. Nxd5 Qxd5 14. Be2 $17) 12. Nf3 (12. Nxd5 Bxd5 13. exd5 Qxd5 $11) 12... Kf7
    (12... d4 13. Ne2 $11) 13. exd5 Nxd5 {The pressure on b4 grows} 14. Bxc6 (14.
    a3 Nxc3 15. Rxc3 Ne7 $11) 14... bxc6 $15 15. a3 Bd7 (15... Nf4 $5 16. O-O Nd3
    $15) 16. Ne4 $14 {Attacks the isolani on c6} Qe7 17. Qb3 (17. Nc5 Nf4 18. g3
    Ng2+ 19. Ke2 Bg4 20. Qxc6 Rd8 $16) 17... Bh6 (17... a5 $5 18. O-O Kg7 $11 (
    18... axb4 19. Nxf6 Rxa3 20. Bxa3 Qxf6 21. Nxe5+ Qxe5 22. Bb2 $18)) 18. O-O $14
    Kg7 19. Rfe1 (19. Rce1 $142 $14) 19... Nf4 $4 (19... Rhd8 $142 $11) 20. Nxf6 $1
    $18 Be6 (20... Qxf6 {Decoy to f6} 21. Bxe5 {A pinning theme}) 21. Rxe5 Kf7 22.
    Rce1 Rhd8 (22... Qd6 23. Ne4 Qd3 (23... Bxb3 $4 24. Nxd6+ Kg8 25. Re8+ Rxe8 26.
    Rxe8+ Bf8 27. Bxh8 $18) 24. Qxd3 Nxd3 25. Rxe6 Nxb2 26. Rxc6 Nd3 27. Rc7+ Kf8
    $18) 23. Rxe6 $1 (23. Rxe6 Nxe6 24. Ne5+ Kf8 25. Nxc6 $18) (23. Nxh7 $143 Bxb3
    24. Rxe7+ Kg8 25. Nf6+ Kf8 $18) 1-0
    
    [Event "corr ICCF EU M-971"]
    [Site "?"]
    [Date "1993.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Eriksson, Roland"]
    [Result "1-0"]
    [PlyCount "53"]
    [EventDate "1993.??.??"]
    
    1. b4 d5 2. Bb2 Qd6 3. a3 $11 e5 4. e3 Nf6 5. Nf3 e4 6. Nd4 c6 7. c4 Be7 (7...
    dxc4 8. Bxc4 Nbd7 9. Nc3 $11) 8. Qc2 (8. cxd5 cxd5 9. Bb5+ Nc6 $11) 8... Na6 (
    8... O-O $5 $11) 9. cxd5 $14 cxd5 10. Bb5+ (10. d3 Bg4 $14) 10... Kf8 11. Nc3
    Ng4 (11... Nc7 12. Be2 $14) 12. Bxa6 (12. d3 exd3 13. Bxd3 Ne5 $16) 12... bxa6
    13. f4 (13. d3 exd3 14. Qxd3 a5 $14) 13... exf3 (13... Bh4+ $5 14. g3 Bf6 $14)
    14. Nxf3 $16 Bb7 15. Ne2 (15. Rc1 Rc8 $16) 15... Rc8 16. Qf5 (16. Qd3 a5 $16)
    16... Bf6 (16... Nh6 17. Qd3 $14) 17. Bd4 $16 Bxd4 (17... Qe6 18. Qf4 $16) 18.
    Nexd4 (18. exd4 $143 Nh6 19. Qe5 Qe7 $14) 18... Nh6 19. Qh5 (19. Qd3 a5 $16)
    19... Qg6 20. Qh3 (20. Qh4 Qe4 $16) 20... Qg4 21. Qh4 (21. Qxg4 Nxg4 22. Ke2
    Nh6 $16) 21... Qxh4+ 22. Nxh4 g6 (22... a5 23. b5 $16) 23. O-O Ke7 24. Nb3 (24.
    Nhf3 f6 $16) 24... Rc7 (24... Bc6 25. Nf3 $14) 25. h3 (25. Rac1 Bc6 $16) 25...
    f5 (25... Rhc8 26. Rac1 $14) 26. Nf3 Kd6 (26... Rhc8 27. Nfd4 $14) 27. Nfd4 (
    27. Nfd4 Bc6 28. Nc5 $16) 1-0
    
    [Event "corr"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Kuznetsov, Sergey"]
    [Result "1/2-1/2"]
    [PlyCount "110"]
    [EventDate "1985.??.??"]
    
    1. b4 d5 2. Bb2 Qd6 3. a3 e5 4. Nf3 e4 5. Nd4 Nf6 6. c4 c6 7. e3 a5 (7... dxc4
    8. Bxc4 Bg4 9. f3 exf3 10. gxf3 $14) 8. Qa4 (8. c5 Qe7 $11) 8... Nbd7 (8...
    dxc4 9. b5 $15) 9. c5 $11 (9. bxa5 $143 Nb6 10. Qb3 Nxc4 11. Bxc4 dxc4 12. Qxc4
    Rxa5 $15) 9... Qb8 10. Qc2 Ne5 11. h3 (11. f4 exf3 12. Nxf3 Nxf3+ 13. gxf3 axb4
    14. axb4 Rxa1 15. Bxa1 Be7 $11) 11... Bd7 (11... axb4 12. axb4 Rxa1 13. Bxa1
    $11) 12. bxa5 Rxa5 13. Nb3 Ra8 14. Qc3 (14. Be2 Be7 $11) 14... Ng6 (14... Nc4
    15. Bxc4 dxc4 16. Qxc4 $11) 15. Qb4 $15 Be7 16. d3 O-O 17. N1d2 exd3 (17... b5
    18. a4 $15) 18. Bxd3 Ne5 (18... b5 19. a4 $11) 19. Bc2 (19. Bxe5 Qxe5 20. Nf3
    Qb2 $15) 19... b5 $15 20. Bd4 Ra4 21. Qc3 Nc4 (21... Ng6 22. Na5 b4 23. axb4
    Rxa1+ 24. Qxa1 Qxb4 25. Qa4 Qxa4 26. Bxa4 $11) 22. Nxc4 $15 dxc4 (22... bxc4
    $143 23. Na5 Ne4 24. Bxe4 dxe4 25. Bxg7 $16) (22... Rxc4 23. Qd3 Ne4 24. Nd2
    Rxc2 25. Qxc2 Nxd2 26. Qxd2 $16) 23. Na5 b4 24. axb4 Rxa1+ 25. Qxa1 Qxb4+ 26.
    Qc3 Bxc5 27. Nxc4 (27. Bxf6 $2 gxf6 28. Kd2 Rd8 $19) 27... Nd5 (27... Be6 28.
    Nd2 (28. Bxf6 $2 gxf6 29. Qxb4 Bxb4+ 30. Ke2 Bxc4+ 31. Bd3 Bxd3+ 32. Kxd3 Rd8+
    33. Ke4 Rd2 $19) 28... Qxc3 29. Bxc3 $11) 28. Qxb4 Bxb4+ (28... Nxb4 $2 29.
    Bxc5 Nxc2+ 30. Kd2 $18) 29. Ke2 c5 30. Bb2 Bb5 31. Bd3 Nc3+ (31... Rd8 32. Rd1
    $11) 32. Bxc3 Bxc3 33. Rc1 Bb4 (33... Bf6 34. Na5 Bxd3+ 35. Kxd3 Rd8+ 36. Ke4
    $14) 34. Ne5 $14 Be8 35. Ba6 Ba3 36. Rc3 (36. Rd1 g5 $14) 36... Bb4 37. Rc4 (
    37. Rd3 g5 $14) 37... f5 38. Nd3 {Attacking the isolated pawn on c5} (38. Rc1
    $5 $14) 38... Rf6 $15 39. Bb7 (39. Nxb4 cxb4 40. Rc8 Rxa6 41. Rxe8+ Kf7 $11)
    39... Bb5 (39... Rd6 40. Rc1 (40. Nxb4 $2 Bb5 41. Nc6 Bxc4+ (41... Bxc6 $143
    42. Bxc6 Rxc6 43. g4 $14) (41... Rxc6 $6 42. Bxc6 Bxc4+ 43. Kd2 $11) 42. Ke1
    Be6 $19) (40. Nxc5 $4 Bb5 $19) (40. Rxb4 $143 cxb4 41. Nxb4 Rb6 42. Bd5+ Bf7
    43. Bxf7+ Kxf7 $17) 40... Bb5 41. Rd1 $17) 40. Bd5+ $11 Kf8 41. Rc2 Bxd3+ 42.
    Kxd3 Ra6 43. g4 Ra3+ (43... Rd6 44. Kc4 $11) 44. Ke2 f4 45. Rc4 fxe3 46. Rf4+
    Ke7 47. fxe3 Kd6 48. Bc4 Bc3 49. Kf3 (49. Rf1 Ra1 $11) 49... Bf6 50. Re4 Bg5 {
    The isolani on e3 becomes a target} (50... Be5 51. g5 $11) 51. Re6+ Kd7 52. Re5
    h6 53. h4 Bxh4 54. Rxc5 Bg5 55. Re5 Kd6 1/2-1/2
    
    [Event "corr ICCF W-ch M269"]
    [Site "?"]
    [Date "1984.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Dostan, Janos"]
    [Result "1/2-1/2"]
    [PlyCount "82"]
    [EventDate "1984.??.??"]
    
    1. b4 d5 2. Bb2 Qd6 3. a3 e5 4. Nf3 e4 5. Nd4 Nf6 6. c4 Be7 (6... dxc4 7. e3
    $15) 7. cxd5 $11 Qxd5 8. e3 O-O 9. Qc2 c6 (9... a5 10. Nc3 Qe5 11. Ncb5 $14)
    10. Nc3 $14 Qe5 11. Bc4 (11. Ncb5 cxb5 12. Nxb5 Qf5 $11) 11... Nbd7 12. Ba2 (
    12. O-O Nb6 13. f4 exf3 14. Nxf3 Bf5 $11) 12... a5 (12... Qg5 13. O-O c5 14.
    Nde2 cxb4 15. axb4 $11) 13. bxa5 (13. Nde2 $5 $11) 13... Nc5 $15 14. O-O Qh5
    15. Nde2 Rxa5 16. Ng3 {e4 becomes the focus of attention} (16. f3 Bd6 17. Nf4
    Bxf4 18. exf4 exf3 19. Rxf3 Bf5 $17) 16... Qh4 17. Bb1 {e4 draws heavy fire}
    Bd6 18. Nce2 Nd3 {Exerts pressure on the isolated pawn} 19. Bxf6 gxf6 (19...
    Qxf6 20. Nd4 Qh4 21. f4 $11) 20. f4 $11 exf3 21. Rxf3 Be5 22. Nc3 Bg4 23. Rf1
    Rd8 (23... Bxg3 $4 24. hxg3 Qh6 25. Qxd3 $18) 24. Qb3 Nc5 (24... b5 $142 $5 25.
    Bxd3 Rxd3 $11) 25. Qb4 $14 Rxd2 $2 (25... Bxg3 26. hxg3 Qxg3 $14) 26. Bf5 $4 (
    26. Ra2 Rxa2 27. Qxa5 Bxg3 28. Qd8+ Kg7 29. hxg3 $11) 26... h5 (26... Bf3 $142
    27. Bxh7+ Kh8 28. Qxh4 Rxg2+ 29. Kh1 Rf2+ 30. Kg1 Rg2+ 31. Kh1 Rf2+ 32. Kg1
    Rg2+ $11) 27. Bxg4 $4 (27. Nce4 $142 Rxg2+ 28. Kxg2 $11) 27... hxg4 (27... Qxg4
    28. Nb1 (28. Qxa5 Bxg3 29. hxg3 Qxg3 30. Qd8+ Rxd8 $19) 28... Qxb4 29. axb4
    Rxa1 30. Nxd2 Rxf1+ 31. Ndxf1 $17) 28. Rad1 (28. Qxa5 $4 Bxg3 29. hxg3 Qxg3 30.
    Qd8+ Rxd8 $19) 28... Nd3 (28... Rxd1 29. Rxd1 Bc7 30. Nf1 $15) 29. Qe4 (29.
    Qxa5 Bxg3 30. Qd8+ Kg7 31. hxg3 Rxg2+ 32. Kxg2 Qh3+ 33. Kg1 Qxg3+ 34. Kh1 Qh3+
    35. Kg1 Qg3+ 36. Kh1 Qh3+ 37. Kg1 Qg3+ $11) 29... Nc5 (29... Bxc3 $142 30. Rxd2
    Bxd2 31. Qxd3 Rd5 $11) 30. Qc4 (30. Qb4 Rxd1 31. Rxd1 $15) 30... Rxd1 $17 (
    30... Bxg3 $2 31. hxg3 Qxg3 32. Rxd2 Qxe3+ 33. Rff2 $18) 31. Rxd1 $2 (31. Nxd1
    Bxg3 32. hxg3 Qg5 $17) 31... Ne6 (31... Bxg3 $142 32. hxg3 Qxg3 $19) 32. Qb4
    $17 Rc5 (32... Bxg3 33. hxg3 Qg5 34. Rd3 $17) 33. Nce4 Rc2 (33... Rd5 34. Rf1
    Rd7 35. a4 $15) 34. Qe7 {Attacks the backward pawn on f6} (34. Qxb7 $5 Qh6 35.
    Qa7 $11) 34... Qh6 $15 35. Kh1 (35. Rf1 Bxg3 36. Nxf6+ Kg7 37. Nxg4 Bxh2+ 38.
    Nxh2 Qxe3+ 39. Kh1 Rf2 $19) 35... f5 (35... Qxe3 $4 36. Qe8+ Nf8 37. Nxf6+ Bxf6
    38. Qxe3 $18) 36. Qe8+ Kh7 (36... Qf8 $142 $5 37. Qxf8+ Kxf8 38. Nxf5 b5 $17)
    37. Qxf7+ $14 Ng7 38. Qe7 Bxg3 (38... Qxe3 $4 39. Ng5+ Kg6 40. Ne6 $18) 39.
    Nxg3 Qe6 40. Qxb7 Qd5 {Do you see the mate threat?} (40... Qxe3 $4 41. Qxg7+ $5
    Kxg7 42. Nxf5+ Kh7 43. Nxe3 $18) 41. Rg1 (41. Rxd5 {Theme: Deflection from c1}
    Rc1+ {The nicest combinations are those leading to mate}) 41... Rxg2 1/2-1/2
    
    [Event "corr ICCF EU-M-1085"]
    [Site "?"]
    [Date "1994.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Brandt, J."]
    [Result "*"]
    [PlyCount "25"]
    [EventDate "1994.??.??"]
    
    1. b4 d5 2. Bb2 Qd6 3. a3 e5 4. Nf3 e4 5. Nd4 Bd7 (
    5... Qg6 6. Nb5 Na6 7. e3 Be7 8. Be5 Bg4 9. Qc1 c6 10. Nd4 Nb8 11. d3 Nd7 12.
    Bf4 Ngf6 13. dxe4 dxe4 14. h3 Bf5 15. c4 c5 16. Nxf5 Qxf5 17. Qb2 O-O 18. Be2
    cxb4 19. axb4 a5 20. bxa5 {
    Hoebel,H (2420)-Karelin,E (1705)/EM/M/167 ICCF Email 2001/1-0 (31)}) (5... a6
    6. e3 Nf6 7. d3 Nbd7 8. dxe4 dxe4 9. Nd2 c5 10. Nc4 Qd5 11. bxc5 Qxc5 12. a4
    Ne5 13. Nb3 Qb4+ 14. c3 Qe7 15. Ba3 Qc7 16. Bxf8 Kxf8 17. Qd4 Nxc4 18. Qxc4
    Qxc4 19. Bxc4 Ke7 20. Nd4 {Luzuriaga,N-Voliani,M/LIAPE 2003/1/2-1/2 (31)}) 6.
    e3 Nf6 $146 (6... a5 7. b5 c5 8. bxc6 Nxc6 9. Bb5 Nf6 10. a4 Qc7 11. Nxc6 bxc6
    12. Bxf6 cxb5 13. Bd4 b4 14. O-O f6 15. Qh5+ Kd8 16. Qxd5 Ra6 17. Rc1 Bd6 18.
    Qxe4 Bxh2+ 19. Kh1 Bd6 20. c4 Bc6 21. Qh4 {
    Trkn-obelitz/itsyourturn.com 2000/1-0 (33)}) 7. c4 c5 8. bxc5 Qxc5 9. cxd5 Nxd5
    10. Be2 Qb6 11. Qc2 Qg6 12. g3 Nc6 13. d3 *
    
    [Event "corr ICCF WT-M-GT-21"]
    [Site "?"]
    [Date "1975.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Kurbasov, Sergey Alexandrovic"]
    [Result "1-0"]
    [PlyCount "73"]
    [EventDate "1975.??.??"]
    
    1. b4 d5 2. Bb2 Qd6 3. a3 e5 4. Nf3 Nd7 5. e3 Ngf6 6. c4 c6 7. cxd5 Nxd5 8. Bc4
    (8. Qc2 a5 9. b5 c5 $11) 8... Be7 (8... a5 9. b5 $11) 9. Qb3 (9. Qc2 N5b6 $11)
    9... O-O (9... e4 10. Nd4 Ne5 11. O-O $15) 10. e4 (10. Nc3 N5b6 $15) 10... Nf4
    11. g3 Nh3 (11... Ng6 12. d4 $15) 12. d4 exd4 13. Bxd4 Bf6 14. Qe3 Re8 15. Nc3
    a5 16. b5 Bxd4 17. Nxd4 Nb6 (17... Ne5 18. Be2 $15) 18. Ba2 $11 Bg4 19. f3 Rad8
    (19... Bd7 $142 $5 $11) 20. Nde2 $16 (20. fxg4 $6 Qxd4 21. Qxd4 Rxd4 $15) 20...
    Nd5 21. Bxd5 cxd5 22. fxg4 d4 23. Nxd4 Qxd4 24. Qxd4 Rxd4 25. Ke2 Ng5 {
    Increasing the pressure on the isolated pawn on e4} (25... Rc8 26. Ke3 Rdc4 27.
    Nb1 $11) 26. Ke3 Rc4 27. Kd3 Rec8 28. Nd5 Rxe4 29. Rhe1 Rce8 30. Rxe4 Nxe4 31.
    Kd4 (31. Rf1 Kf8 $11) 31... Nd2 (31... Nf2 32. g5 $11) 32. Rd1 $14 Re2 (32...
    Nf3+ 33. Kc5 $14) 33. h3 (33. Nf4 Nf3+ 34. Kc5 $16) 33... Ne4 (33... h6 34. Kc5
    $14) 34. Nf4 (34. Kd3 Nxg3 35. Rg1 Ra2 36. Rxg3 Rxa3+ 37. Nc3 h5 $18) 34...
    Rd2+ 35. Rxd2 Nxd2 36. Ne2 (36. Nd3 a4 $14) 36... b6 (36... Kf8 $5 $16) 37. Nc3
    (37. Nc3 Nf1 38. Kd5 $18) 1-0
    
    [Event "corr 3GMMsemi-08"]
    [Site "?"]
    [Date "1998.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Erlandsson, Harry"]
    [Result "0-1"]
    [PlyCount "52"]
    [EventDate "1998.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e5 4. a3 Bd6 5. c4 c6 6. Nf3 Bg4 7. h3 Bxf3 8. Qxf3
    Nbd7 9. Nc3 (9. d3 O-O $11) 9... e4 $15 10. Qd1 O-O (10... dxc4 11. Qc2 Be5 12.
    Nxe4 Nxe4 13. Qxe4 $11) 11. Qb3 (11. d3 Be5 $15) 11... dxc4 12. Bxc4 Ne5 13.
    Be2 Qd7 (13... Bc7 14. Na4 $15) 14. Qc2 $11 Qf5 15. f4 (15. O-O $5 $11) 15...
    Nd3+ $15 16. Bxd3 exd3 17. Qb3 Rfe8 18. O-O Rad8 19. Rac1 Bc7 (19... a6 20. Qd1
    $15) 20. Nd1 (20. b5 Bb6 $15) 20... Ne4 21. Re1 $2 (21. Nf2 $142 $15) 21... Qg6
    (21... Nxd2 22. Qc3 Nf3+ 23. Kf2 $19) 22. Bc3 (22. Nf2 $142 Nxd2 23. Qd1 Nf3+
    24. Qxf3 $19) 22... Qg3 (22... Ng3 $142 $5 23. Rb1 Ne2+ 24. Rxe2 dxe2 $19) 23.
    Rf1 $17 Ng5 24. fxg5 $4 (24. Kh1 Ne6 25. Rf3 Qe1+ 26. Kh2 $15) 24... Qh2+ 25.
    Kf2 Bg3+ 26. Kf3 Bh4 (26... Bh4 27. Be5 Qxe5 28. Qxd3 Rxd3 $19) 0-1
    
    [Event "corr ICCF EU/M/1224"]
    [Site "?"]
    [Date "2000.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Szewczyk, Gerard"]
    [Result "0-1"]
    [PlyCount "58"]
    [EventDate "2000.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. a3 a5 5. b5 c5 6. c4 (6. Nf3 Bd6 $11) 6... Be7
    7. Nf3 Nbd7 8. Nc3 b6 9. Qb3 (9. Be2 dxc4 10. Bxc4 e5 $11) 9... Bb7 (9... d4
    10. Nd1 $15) 10. Be2 $11 d4 11. Na4 e5 12. O-O (12. d3 O-O $11) 12... d3 13.
    Bd1 (13. Qxd3 $143 e4 14. Qc2 exf3 15. Bxf3 Bxf3 16. gxf3 O-O $19) 13... e4 (
    13... Qc7 14. Qxd3 e4 15. Qc2 exf3 16. Bxf3 Bxf3 17. gxf3 $19) 14. Ne5 Nxe5 15.
    Bxe5 O-O 16. f3 Nd7 17. Bb2 Bd6 18. g3 Qc7 19. Kg2 (19. fxe4 Bxg3 20. Qxd3
    Bxh2+ 21. Kh1 f5 $15) 19... f5 20. fxe4 (20. Nc3 Ne5 $15) 20... Ne5 $17 21. Nc3
    fxe4 22. Rf4 Ng6 (22... Nf3 23. Rxe4 Nxd2 24. Qa4 $19) 23. Rxf8+ Rxf8 (23...
    Nxf8 $6 24. Bg4 $11) (23... Kxf8 $6 24. Bg4 $11) (23... Bxf8 $6 24. Bg4 $11)
    24. Bh5 Qf7 {Do you see the mate threat?} 25. Qd1 Qf2+ 26. Kh1 Ne5 27. Bg4 (27.
    Rb1 Nxc4 28. Qb3 $11) 27... Nf3 (27... Nxg4 28. Qxg4 Qxd2 29. Qe6+ Kh8 30. Qxd6
    $16) 28. Bxf3 exf3 (28... Rxf3 $6 29. Na4 Bc7 30. Qe1 $19) (28... Qxf3+ $6 29.
    Qxf3 exf3 30. Rf1 $17) 29. Qf1 Qxd2 (29... Qxd2 30. e4 Qxb2 $19) 0-1
    
    [Event "corr ICCF EU-M-849"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Sipos, Laszlo"]
    [Result "1/2-1/2"]
    [PlyCount "79"]
    [EventDate "1985.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. a3 a5 5. b5 c5 6. Nf3 Bd6 7. c4 Nbd7 8. cxd5
    exd5 9. d3 b6 (9... O-O 10. Be2 $11) 10. Be2 $11 Qe7 (10... O-O 11. O-O $11)
    11. Nc3 Bb7 12. Qb3 (12. d4 c4 $11) 12... d4 $15 13. Nd1 (13. exd4 Bxf3 14.
    gxf3 cxd4 $15) 13... Rd8 14. exd4 Bd5 (14... Bxf3 15. gxf3 cxd4 16. Bxd4 $15)
    15. Qa4 Bxf3 16. gxf3 Nd5 17. dxc5 (17. Rg1 f6 18. Ne3 Nxe3 19. fxe3 Bxh2 $11)
    17... Nxc5 $17 18. Qc2 Nf4 19. Kf1 Qxe2+ (19... Be5 $5 $17) 20. Qxe2+ $15 Nxe2
    21. Kxe2 Bf4 (21... Bf8 22. Be5 Rd5 23. f4 $11) 22. Bxg7 $15 Rg8 23. Bf6 (23.
    Bc3 Rxd3 24. Re1 Rg6 (24... Bxh2 $6 25. Rh1 Bf4 26. Rxh7 $11) 25. Kf1+ Kf8 $17)
    23... Rxd3 $15 24. Nb2 Rd2+ (24... Rb3 25. a4 Rg6 26. Bh8 $15) 25. Kf1 $11 Rg6
    26. Re1+ Ne6 27. Bc3 (27. Bh8 $5 $11) 27... Rc2 $15 28. Nd1 Rg5 (28... Ra2 $5
    $17) 29. a4 $11 Rd5 30. Bf6 Bd2 (30... Kd7 31. Nc3 Rd3 32. Ne4 $11) 31. Re5 (
    31. Re4 $5 $11) 31... Rxe5 $15 32. Bxe5 Nc5 33. Rg1 Nxa4 34. Rg8+ (34. Rg4 Bb4
    $15) 34... Ke7 $17 35. Bd4 Rc4 (35... Bf4 36. Ne3 Bxe3 37. Bxe3 $17) 36. Ne3
    $15 Bxe3 (36... Rc1+ 37. Kg2 $15) 37. fxe3 $11 Nc5 (37... Rc2 38. Kg1 $11) 38.
    Rb8 (38. Rc8 Rc2 $11) 38... Nd7 39. Rb7 Kd6 (39... a4 40. Ra7 $11) 40. Ke1 (40.
    Bxb6 $5 a4 41. Bd8 $14) 1/2-1/2
    
    [Event "corr 3GMMsemi-08"]
    [Site "?"]
    [Date "1998.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Kedzierski"]
    [Result "0-1"]
    [PlyCount "60"]
    [EventDate "1998.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. a3 c5 5. bxc5 Bxc5 6. d4 Bd6 7. Nf3 O-O 8. c4
    Nc6 9. Nc3 Na5 (9... Qa5 10. c5 Bb8 11. Bb5 $11) 10. cxd5 (10. c5 Be7 $11)
    10... exd5 11. Be2 (11. Nb5 Be7 $11) 11... Nc4 12. Bxc4 (12. Qb3 Nxb2 13. Qxb2
    a6 $11) 12... dxc4 13. Qa4 Qc7 14. O-O Bd7 (14... Bf5 15. Rfc1 Ng4 16. g3 $15)
    15. Qc2 $11 Rac8 (15... Rfe8 16. e4 Bf4 17. e5 $14) 16. e4 Bf4 (16... Ng4 17.
    e5 Be7 18. Bc1 $14) 17. e5 Nh5 18. h3 Bh6 19. a4 (19. Bc1 Bxc1 20. Rfxc1 f6 $11
    ) 19... Nf4 20. Bc1 (20. Nb5 Qa5 $11) 20... Bc6 (20... Qa5 21. Bxf4 Bxf4 22. d5
    $11) 21. Nb5 (21. Bxf4 Bxf4 22. d5 Bd7 $14) 21... Qd7 {
    Black gets the initiative} 22. Bxf4 Bxf4 23. Nxa7 (23. Ra3 $5 a6 24. Nd6 $11)
    23... Bxf3 $17 24. Nxc8 Rxc8 25. e6 Qxe6 26. Rfe1 Qd7 27. gxf3 $4 (27. a5 $19)
    27... Qxh3 (27... Qxd4 28. Qf5 Rf8 29. Rab1 $14) 28. Ra3 (28. Re4 Bh2+ 29. Kh1
    Bd6+ 30. Kg1 Qh2+ 31. Kf1 Qh1+ 32. Ke2 Qxa1 $19) 28... Bh2+ 29. Kh1 Bd6+ 30.
    Kg1 Bxa3 (30... Bxa3 31. f4 Qg4+ 32. Kf1 Qxf4 $19) 0-1
    
    [Event "corr ICCF WT-M-242"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Tiagunov, G."]
    [Result "1-0"]
    [PlyCount "123"]
    [EventDate "1985.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. b5 c5 5. c4 b6 6.
    cxd5 (6. Nf3 dxc4 7. Bxc4 Bb7 8. d3 Nbd7 9. Nbd2 Be7 10. O-O O-O 11. Qc2 Rc8
    12. a4 Bd6 13. Qc3 Qc7 14. a5 bxa5 15. e4 Ne5 16. Nxe5 {
    1-0 pcmvr (2225)-nstone (2195)/net-chess.com 2006}) (6. d4 dxc4 7. Bxc4 Bb7 8.
    Nf3 Nbd7 9. O-O Be7 10. a4 O-O 11. Nbd2 Rc8 12. Qb3 cxd4 13. Bxd4 Nd5 14. Rac1
    Nc5 15. Bxc5 Bxc5 16. Ne4 Nf6 17. Nxc5 Rxc5 18. Rfd1 Qa8 19. Be2 Rh5 20. Nd4
    Bd5 {Istvanny-ookii (1765)/chesshere.com 2007/0-1 (52)}) 6... Nxd5 7. Bc4 $146
    (7. Nf3 Bb7 8. Nc3 f6 9. Be2 Be7 10. O-O O-O 11. Qc2 Nd7 12. e4 Nxc3 13. Bxc3
    e5 14. Bc4+ Kh8 15. Rfe1 Qc7 16. Nh4 Rfd8 17. Re3 Nf8 18. Nf5 Ng6 19. Bf7 Nf4
    20. Bc4 a6 21. a4 axb5 {
    Wessel,V-Coldewey,B/Schleswig Holstein-chG 1990/1-0 (44)}) 7... Bb7 8. Nf3 Nd7
    9. d3 N7f6 10. e4 Nc7 11. Nbd2 Be7 12. O-O O-O 13. a4 Nd7 14. a5 a6 15. axb6 (
    15. bxa6 $5 Nxa6 16. Bc3 $14) 15... Nxb5 $15 16. Qb3 Qxb6 17. Rfb1 Bd6 18. Bxe6
    Bxh2+ 19. Kxh2 Qxe6 20. Qxe6 fxe6 21. Rc1 Rac8 22. Nb3 {
    The isolani on c5 becomes a target} h6 23. Rc2 (23. Kg1 Rxf3 24. gxf3 g5 $14)
    23... Nd4 (23... Nd6 $142 $5 24. Na5 Ba8 $15) 24. Nbxd4 $14 cxd4 25. Rxc8 Rxc8
    26. Bxd4 Rc2 27. Kg3 Kf7 28. Kf4 Nf6 29. Ne5+ Ke7 30. g4 Ne8 31. Rb1 Bc8 32.
    Nc4 Nf6 33. Rb8 Kd8 34. Nb6 (34. Ra8 Nd7 $18) 34... Ne8 $2 (34... g5+ $142 $5
    35. Kf3 Nd7 36. Nxd7 Kxd7 $16) 35. Ra8 $18 (35. Rxc8+ $6 Rxc8 36. Nxc8 Kxc8 $14
    ) 35... Rc7 36. Nxc8 (36. Rxc8+ $6 Rxc8 37. Nxc8 Kxc8 $14) 36... Rxc8 37. Rxa6
    Ke7 (37... Kd7 38. Be5 Ke7 39. Ra7+ Kf8 40. d4 $18) 38. Ra7+ (38. Ke5 $142 $5
    Kf7 39. f3 Rb8 $18) 38... Kf8 39. Ke5 Rc6 40. Rb7 Nf6 41. f3 Nh7 42. Kf4 Nf6
    43. Bxf6 gxf6 44. Rh7 (44. e5 Rc3 45. exf6 Rxd3 $18) 44... Rc1 45. Rxh6 (45. e5
    fxe5+ 46. Kxe5 Rc3 $18) 45... Kg7 46. Rh2 Rd1 47. Ke3 Kg6 48. f4 Rg1 (48... e5
    49. fxe5 fxe5 50. Rf2 $18) 49. f5+ exf5 50. gxf5+ Kg7 51. Kd4 Rd1 52. Rh3 Ra1
    53. Kd5 Ra5+ 54. Kc4 Ra4+ 55. Kc5 Ra5+ 56. Kb4 Ra1 57. d4 Re1 58. Rh4 Rc1 59.
    d5 Kf7 60. Rh7+ Ke8 61. d6 Rc6 (61... Rc2 62. e5 $1 fxe5 63. f6 $18) 62. Re7+ (
    62. Re7+ Kd8 63. Re6 $18) 1-0
    
    [Event "corr DDR-H-163"]
    [Site "?"]
    [Date "1972.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Hanisch, Karl"]
    [Result "1-0"]
    [PlyCount "85"]
    [EventDate "1972.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. b5 c5 5. c4 dxc4 6. Bxc4 Be7 7. Nf3 Nbd7 8. O-O
    O-O 9. d3 (9. Qc2 Bd6 $11) 9... Nb6 10. Nbd2 Ne8 (10... Nxc4 11. Nxc4 Nd5 12.
    e4 $11) 11. Qc2 Bf6 (11... Nd6 12. Rfd1 $14) 12. d4 (12. Bxf6 Nxf6 13. Rfd1 Bd7
    $14) 12... cxd4 13. Nxd4 Nd6 (13... e5 14. N4f3 Nxc4 15. Nxc4 $11) 14. Bd3 g6 (
    14... h6 15. Rfd1 $14) 15. Rfd1 (15. N4f3 Bd7 16. Bxf6 Qxf6 $16) 15... Bd7 (
    15... e5 16. N4f3 Bg4 17. Bxe5 (17. Nxe5 $143 Bxd1 18. Rxd1 Rc8 $11) 17... Bxe5
    18. Nxe5 $11) 16. Ne4 $16 Rc8 (16... Be7 $5 $16) 17. Nxf6+ $18 (17. Nxd6 Rxc2
    18. Bxc2 Qe7 $15) 17... Qxf6 18. Nc6 $1 e5 (18... bxc6 19. Bxf6 {
    Annihilates a defender: f6}) 19. Bxe5 Qe6 20. Qb3 Ndc4 (20... bxc6 21. Qxe6
    Bxe6 22. Bxd6 $16) 21. Bxc4 Nxc4 22. Qxc4 (22. Nxa7 $6 Qxe5 23. Nxc8 Rxc8 $14)
    22... bxc6 (22... Qxc4 $4 23. Ne7#) 23. Qd4 cxb5 24. Bh8 {
    Do you see the mate threat?} f6 25. Qxd7 Qxd7 26. Rxd7 Rf7 27. Rxf7 Kxf7 28.
    Rd1 Rxh8 29. Rd7+ Ke6 30. Rxa7 Rc8 {The mate threat is Rc1} 31. Kf1 h6 (31...
    b4 32. Rb7 $14) 32. Ke1 (32. a3 Rc2 $16) 32... Rc2 33. Rb7 Rxa2 34. Rxb5 g5 (
    34... h5 35. Rb8 $14) 35. h4 g4 36. g3 Kf7 37. Rd5 Rb2 38. Rd2 Rb5 39. Ke2 h5
    40. f3 gxf3+ 41. Kxf3 Rf5+ 42. Kg2 Ra5 43. Rd4 (43. Rd4 f5 44. Rd6 $16) 1-0
    
    [Event "corr DDR (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Neubert, Fritz"]
    [Result "1-0"]
    [PlyCount "53"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. b5 c5 5. c4 Nbd7 6. Nf3 Be7 7. Nc3 O-O 8. Qb3 (
    8. d4 cxd4 9. Qxd4 Qa5 $11) 8... d4 (8... Nb6 $5 $15) 9. exd4 $11 cxd4 10. Nxd4
    Nc5 (10... Bc5 11. Nf3 $11) 11. Qc2 Qxd4 (11... Qd6 $142 $5 $11) 12. Nd5 $1 $16
    Qe4+ (12... Qxd5 13. cxd5) 13. Qxe4 $18 Nfxe4 14. Nxe7+ Kh8 15. Nxc8 (15. d3 $5
    Nf6 $18) 15... Rfxc8 (15... Raxc8 16. d3 Nd6 17. Be5 $16) 16. d3 Nf6 (16... Nd6
    17. Be2 $16) 17. Be2 Rd8 18. Rd1 Rd7 19. h4 (19. Ba1 a6 20. d4 Nce4 $18) 19...
    Na4 (19... a6 20. Bxf6 gxf6 21. d4 $16) 20. Ba1 a6 (20... Kg8 21. h5 $18) 21.
    Rb1 (21. bxa6 Rxa6 22. d4 Ra5 $18) 21... Nc5 22. Rh3 axb5 23. Rxb5 Rxa2 $2 (
    23... b6 $142 $18) 24. Bxf6 (24. Rxc5 Rxa1+ 25. Bd1 h6 $11) 24... Nxd3+ (24...
    gxf6 25. Rxc5 f5 $18) 25. Rxd3 (25. Bxd3 $6 gxf6 26. Bb1 Ra4 $18) 25... Rxd3
    26. Bxd3 gxf6 27. Rxb7 (27. Rxb7 Kg7 28. c5 $18) 1-0
    
    [Event "corr DDR (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Hecker, H."]
    [Result "1-0"]
    [PlyCount "67"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. b5 c5 5. Nf3 c4 6. Be2 Bb4 (6... Bd7 7. Nc3 $11
    ) 7. c3 (7. a3 Ba5 $11) 7... Ba5 (7... Bd6 8. O-O $15) 8. d3 $11 cxd3 9. Bxd3
    Qc7 (9... Nbd7 10. O-O $11) 10. O-O e5 (10... Nbd7 11. Nbd2 e5 12. Be2 $15) 11.
    Be2 Nbd7 (11... Bg4 12. c4 Bxf3 13. gxf3 dxc4 14. Qa4 $11) 12. Nbd2 (12. c4
    dxc4 13. Qc2 O-O $11) 12... Bb6 (12... e4 $5 13. Nd4 Ne5 $11 (13... Bxc3 $4 14.
    Rc1 $18)) 13. Rc1 (13. c4 e4 14. Nd4 Qe5 $14) 13... Rb8 (13... e4 $5 14. Nd4
    O-O $14) 14. c4 $16 d4 15. exd4 Bxd4 (15... exd4 $5 16. Nxd4 O-O $16) 16. Nxd4
    $18 exd4 17. Bxd4 b6 (17... O-O 18. Re1 $18) 18. Re1 (18. Nb3 O-O $18) 18...
    O-O 19. Bf3 Bb7 20. Re7 Bxf3 21. Nxf3 (21. gxf3 $6 Qd6 22. Bxf6 Nxf6 23. Rxa7
    Rbd8 $14) (21. Qxf3 $143 Qd6 22. Bxf6 Nxf6 $16) 21... Rbd8 (21... Qf4 22. Be3
    Qc7 23. Bg5 $18) 22. Bxf6 gxf6 23. Nd4 (23. Qe2 Qc5 $18) 23... Qf4 (23... Qc5
    24. Qe2 $18) 24. g3 Qg5 $2 (24... Qh6 25. Nc6 Rfe8 $18) 25. f4 (25. h4 Qg6 26.
    Nc6 Qf5 $18) 25... Qc5 26. Rxd7 $1 h5 (26... Rxd7 {Decoy theme: d7} 27. Qg4+ {
    A double attack}) 27. Rd5 Rxd5 28. cxd5 Qxd5 29. Nc6 Qxb5 30. g4 (30. Nxa7 $5
    Qa6 31. Nc6 Qa3 $18) 30... Qa6 (30... Re8 31. gxh5 Kh8 32. Nxa7 Rg8+ 33. Kh1
    $18) 31. gxh5 (31. Ne7+ Kg7 $18) 31... Qxa2 32. Ne7+ Kh8 (32... Kh7 33. Qd3+
    Kh6 34. Qg3 $18) 33. Qd6 (33. Ng6+ fxg6 34. hxg6 Kg7 35. Rc7+ Rf7 36. gxf7 Qxf7
    37. Rxf7+ Kxf7 38. Qd7+ Kg6 39. Qxa7 b5 $18) 33... Qb2 (33... Kh7 34. Qd3+ Kh6
    35. Nf5+ Kh7 36. Ng3+ Kg8 $18) 34. Ng6+ $1 (34. Ng6+ Kh7 35. Nxf8+ Kh6 36. Rc6
    Qa1+ 37. Kg2 Qb2+ 38. Kh3 Qb3+ 39. Kg4 $18) 1-0
    
    [Event "corr ICCF WT-H-16"]
    [Site "?"]
    [Date "1970.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Vodicka, Milan"]
    [Result "1-0"]
    [PlyCount "49"]
    [EventDate "1970.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. b5 c5 5. Nf3 Bd6 6. c4 Nbd7 7. d4 Nb6 (7... O-O
    8. cxd5 Nxd5 9. Nc3 $11) 8. Nc3 (8. cxd5 Nbxd5 9. Bd3 cxd4 10. Bxd4 Qc7 $11)
    8... dxc4 (8... Nxc4 9. Bxc4 dxc4 10. dxc5 Bxc5 11. Qxd8+ Kxd8 12. Ne5 $11) 9.
    dxc5 Bxc5 10. Qxd8+ Kxd8 11. Ne5 Ke7 12. Nxc4 (12. Bxc4 $143 Bd6 (12... Nxc4 $6
    13. Nxc4 Bd7 14. a4 $11) 13. f4 Bxe5 14. fxe5 Nxc4 15. exf6+ gxf6 $17) 12...
    Nxc4 13. Bxc4 b6 14. O-O Bb7 15. Na4 (15. Rfd1 Rhc8 16. Bd3 e5 $11) 15... Rac8
    (15... Bd6 16. Rfd1 $11) 16. Nxc5 (16. Rac1 $142 $11) 16... Rxc5 $4 (16... bxc5
    $142 17. Rfd1 Rhd8 $11) 17. Ba3 $18 Rhc8 18. Rac1 Kd7 (18... Bd5 19. Rfd1 $18)
    19. Rfd1+ Bd5 20. Bxc5 Rxc5 21. f3 Kc7 22. Bxd5 exd5 (22... Nxd5 23. Rxc5+ bxc5
    24. Kf2 $18) 23. g4 Kd6 24. a4 Nd7 25. Kf2 (25. Kf2 Ne5 26. Ke2 $18) 1-0
    
    [Event "corr ICCF EU-M-630"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Weissleder, WM."]
    [Result "1/2-1/2"]
    [PlyCount "83"]
    [EventDate "1985.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. b5 c5 5. Nf3 Bd6 6. c4 Nbd7 7. Be2 O-O 8. O-O
    b6 9. d4 Bb7 10. Nbd2 Qc7 11. Rc1 Rac8 12. h3 Qb8 (12... Rfd8 13. Qa4 $11) 13.
    a4 (13. dxc5 bxc5 14. cxd5 exd5 $11) 13... Rfd8 14. Re1 (14. dxc5 Bxc5 15. cxd5
    Bxd5 $11) 14... cxd4 $15 15. exd4 dxc4 16. Bxc4 {
    Opening the c-file gets Black a lot of play} (16. Nxc4 Bf4 17. Rc2 Nd5 $15)
    16... Bd5 (16... Bf4 17. Rc2 $17) 17. Qe2 Bf4 (17... Nh5 18. Bxd5 Nf4 19. Qe3
    Nxd5 20. Qg5 $15) 18. Bxd5 $11 Nxd5 19. g3 (19. Ne5 Rxc1 20. Bxc1 Nxe5 21. dxe5
    Nc3 $17) 19... Bh6 (19... Bd6 20. Ne5 Bxe5 21. dxe5 $11) 20. Rxc8 (20. Ne5 Bxd2
    21. Qxd2 Nxe5 22. dxe5 Rc7 $11) 20... Rxc8 $15 21. Nc4 Qc7 22. Nfe5 Nxe5 23.
    Nxe5 g6 24. f4 (24. Qf3 Bd2 25. Rd1 Bg5 $15) 24... Qb7 (24... Qd6 25. Nc6 $15)
    25. Nc6 Rxc6 (25... Bg7 26. Rc1 $15) 26. bxc6 $11 Qxc6 27. Qa6 (27. Qb5 Qa8 $11
    ) 27... Qc2 28. Re2 Qb3 29. Kh2 Bf8 (29... Qf3 $11) 30. Bc1 (30. Qxa7 Qf3 31.
    Qa6 Ne3 $11) 30... Qc3 (30... Nc7 31. Qb7 Qd1 32. Qg2 Qxc1 33. Rc2 $11) 31. Bb2
    (31. Bd2 Qc7 $11) 31... Qb3 (31... Qf3 32. Rc2 $15) 32. a5 (32. Rf2 h5 $11)
    32... Ne3 (32... h5 33. Bc1 $15 (33. Qxa7 h4 34. gxh4 Nxf4 $19)) 33. axb6 $11
    axb6 34. Qa1 Nd5 (34... b5 35. Qe1 $11) 35. Qc1 (35. Qb1 b5 $11) 35... b5 36.
    Rc2 (36. Qc2 Qxc2 37. Rxc2 b4 $11) 36... Bb4 (36... h5 37. Rc8 h4 38. Bc3 $15)
    37. Rc8+ (37. Rf2 h5 $11) 37... Kg7 38. Qc2 Qf3 (38... Qxc2+ 39. Rxc2 h6 40.
    Rc8 $15) 39. Qg2 $11 Qd3 40. Qf2 Bd2 41. Bc1 Bc3 {
    Exerts pressure on the isolated pawn} 42. Bb2 1/2-1/2
    
    [Event "corr DDR"]
    [Site "?"]
    [Date "1980.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Gruesser, Manfred"]
    [Result "1-0"]
    [PlyCount "81"]
    [EventDate "1980.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. b5 c5 5. Nf3 Bd6 6. c4 Nbd7 7. Be2 O-O 8. O-O
    b6 9. d4 Bb7 10. Nbd2 Qc7 11. g3 (11. dxc5 bxc5 12. cxd5 exd5 $11) 11... a6 $15
    12. a4 (12. cxd5 Bxd5 (12... Nxd5 $143 13. e4 $16) 13. bxa6 Rfc8 $11) 12...
    axb5 13. dxc5 bxc5 (13... Qxc5 14. cxb5 Rfc8 15. Nd4 $15) 14. cxb5 Be5 {
    Black plans c4} (14... e5 $142 $5 $15) 15. Nxe5 $16 Nxe5 16. Qc2 (16. a5 Rfb8
    $16) 16... Ned7 $14 17. Ba3 (17. Bc3 e5 $14) 17... Rfc8 $11 {Black prepares c4}
    18. Rfc1 {Pawn c5, live or die!} c4 (18... e5 19. Bb2 $11) 19. Bb4 {
    White intends a5} Qd8 (19... Qb6 $5 $11) 20. a5 $16 Ra7 21. Qb2 Rca8 {
    a5 becomes the focus of attention} 22. a6 Bxa6 (22... Bc8 23. e4 $14) 23. bxa6
    Rxa6 24. Bc3 Rb6 25. Qc2 Rba6 26. e4 Rxa1 27. Rxa1 Rxa1+ 28. Bxa1 Qa5 (28...
    Nc5 29. e5 Qa5 30. Bd4 $16) 29. Bxf6 (29. Bd4 $5 Nxe4 30. Nxe4 dxe4 31. Qxe4
    Qd5 32. Qxd5 exd5 $18) 29... Nxf6 $16 30. Bf3 Qa1+ 31. Kg2 c3 32. exd5 exd5 33.
    Nb3 Qb2 34. Nd4 (34. Qf5 $142 $5 h6 35. Nd4 $16) 34... Qxc2 $11 35. Nxc2 g5 36.
    Kf1 h5 {Black prepares the advance g4} (36... g4 37. Bg2 Kf8 $14) 37. Ke2 $18
    g4 38. Bg2 Kf8 (38... h4 39. gxh4 Kh7 40. Kd3 $18) 39. Kd3 Ke7 40. Kxc3 Ke6 41.
    Kd4 (41. Kd4 Ne4 42. Bxe4 dxe4 43. Kxe4 $18) 1-0
    
    [Event "corr"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Wendland"]
    [Result "1-0"]
    [PlyCount "51"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. b5 c5 5. Nf3 Bd6 6. c4 Nbd7 7. Be2 b6 8. O-O
    Bb7 9. cxd5 $146 (9. a4 Qc7 10. h3 dxc4 11. Bxc4 Ne5 12. Nxe5 Bxe5 13. Bxe5
    Qxe5 14. Nc3 Nd5 15. Qb3 Nxc3 16. Qxc3 Qxc3 17. dxc3 O-O-O 18. Rfd1 Rxd1+ 19.
    Rxd1 Rd8 {1/2-1/2 Merkl-Fischer,A/corr SOK-89-30 1989/[Fritz 6 (2s)]}) (9. d3
    dxc4 10. dxc4 Qc7 11. Nbd2 e5 (11... O-O-O 12. Qc2 g5 13. Rfd1 g4 14. Ng5 Bxh2+
    15. Kh1 Rhg8 16. Nxf7 Rdf8 17. Nf1 Rxf7 18. Nxh2 Ne4 19. f4 gxf3 20. Bxf3 Ng3+
    21. Kg1 Bxf3 22. Nxf3 Rxf3 23. gxf3 Ne2+ 24. Kf1 Qh2 {
    0-1 Szoelloesi jr-Pirisi/Budapest 1983}) 12. g3 e4 13. Nh4 Be5 14. Qc2 Bxb2 15.
    Qxb2 Qe5 16. Qb3 Qe6 17. Rad1 g5 18. Ng2 Qh3 19. Qc3 h5 20. Rfe1 O-O-O 21. Nf1
    Qf5 22. Rd6 Ne5 23. Red1 Rxd6 {Sternik,R-Lebel,P/corr or02-22 2002/0-1 (31)})
    9... Bxd5 10. Nc3 Bb7 11. Qc2 Rc8 12. Qa4 Bb8 13. e4 Qc7 14. d3 g5 15. g3 g4
    16. Nd2 h5 17. Rfe1 h4 18. Nf1 (18. Nc4 hxg3 19. hxg3 Rd8 $11) 18... hxg3 $15
    19. fxg3 Ke7 (19... Qd6 20. Nd1 c4 21. dxc4 $15) 20. Nd1 Rh4 $4 (20... Ne5 $142
    $11) 21. gxh4 $18 Rh8 22. Bxg4 $1 Rxh4 $2 (22... Nxg4 23. Bxh8 {Pinning} (23.
    Bxh8 {Deflection})) 23. Bf3 Ng4 24. Nde3 Nxh2 25. Bg2 f5 (25... Ne5 26. Nxh2
    Rxh2 $18) 26. Nxf5+ $1 (26. Nxf5+ Ke8 27. Nxh4 $18) 1-0
    
    [Event "corr DDR"]
    [Site "?"]
    [Date "1986.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Ruediger, Harald"]
    [Result "*"]
    [PlyCount "92"]
    [EventDate "1986.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. b5 Bd6 5. c4 Nbd7 6. Nf3 O-O 7. d4 b6 8. Nbd2
    Bb7 9. Qc2 (9. Be2 a6 $11) 9... c5 10. Be2 (10. cxd5 exd5 (10... Bxd5 $143 11.
    e4 $16) 11. dxc5 bxc5 $11) 10... Rc8 11. Qa4 cxd4 12. exd4 Rc7 (12... Ra8 $15)
    13. c5 (13. O-O $5 $11) 13... bxc5 $17 14. Qxa7 Qe7 (14... c4 15. O-O $17) 15.
    dxc5 Nxc5 16. Qa3 (16. b6 Rd7 17. Qa5 Ra8 $17) 16... e5 17. O-O (17. Qe3 d4 18.
    Qg5 Na4 $19) 17... d4 $19 18. Nh4 (18. Qb4 Ra8 19. Bc1 e4 20. Nxe4 Qxe4 21.
    Qxd4 Bxh2+ (21... Qxe2 $6 22. Qxd6 Ne8 23. Qg3 $19) 22. Kxh2 Qxe2 $19) 18... d3
    (18... Nce4 19. Qd3 Nxd2 20. Nf5 $19) 19. Bf3 e4 (19... Ra8 $142 $1 20. Qxa8+
    Bxa8 21. Bxa8 Qe6 $19) 20. Nf5 $17 Qe6 21. Nxd6 Qxd6 22. Bd1 Nd5 23. Bd4 Nf4
    24. Be3 Ne2+ (24... Ra8 25. Qb2 Ne2+ 26. Kh1 Na4 27. Bxa4 Rxa4 $19) 25. Bxe2
    $11 dxe2 26. Rfe1 Ra8 27. Qb4 Qd5 28. Bxc5 (28. Qd4 Qxd4 29. Bxd4 Nd3 30. Rxe2
    Rc2 $11) 28... e3 {Threatening mate: Qxg2} 29. Ne4 (29. fxe3 Qxg2# {
    The nicest combinations are those leading to mate}) 29... exf2+ 30. Kxf2 Qf5+ (
    30... Qxe4 $143 31. Qxe4 Bxe4 32. Be3 $16) 31. Kg1 (31. Kxe2 Bxe4 32. Rec1 Bxg2
    $19) 31... Bxe4 {With the decisive threat Qg4} 32. Bf2 (32. Rxe2 Bd3 33. Re3
    Rxc5 34. Rxd3 Rxb5 $11) 32... Qg4 (32... Qg6 33. Bg3 Rc2 34. Qd4 $15) 33. Bg3
    $11 Re8 (33... Rc2 34. a4 $11) 34. a4 h5 (34... Rc2 35. a5 $11) 35. Qd2 (35.
    Ra2 $5 $16) 35... Rc2 (35... Bb7 36. Qf4 Rc4 37. Qxg4 Rxg4 38. a5 $17) 36. Qf4
    Qd7 37. Qd6 (37. Qf2 $142 $5 $11) 37... Qb7 $17 38. Ra3 Bxg2 39. Bf2 Re6 (39...
    Bd5 40. Re3 Rxe3 41. Bxe3 $17) 40. Qd8+ Kh7 41. Rg3 Rg6 (41... Be4 42. Qg5 Bg6
    43. Re3 Rxe3 44. Qxe3 $17) 42. Rxg6 $15 fxg6 43. Qb6 Qd5 {
    Threatening mate... how?} 44. Qd4 Rc4 (44... Ra2 45. Qxd5 Bxd5 46. b6 Rxa4 47.
    Rxe2 $14) 45. Qxd5 $11 Bxd5 46. Rxe2 Rg4+ (46... Rg4+ 47. Bg3 h4 $11) *
    
    [Event "corr ICCF EU-H-GT-25"]
    [Site "?"]
    [Date "1970.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Purschwitz, Werner"]
    [Result "1-0"]
    [PlyCount "91"]
    [EventDate "1970.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. b5 Bd6 5. c4 Nbd7 6. Nf3 dxc4 7. Bxc4 $11 Qe7 (
    7... Nb6 8. Be2 $11) 8. d4 h6 (8... Bxh2 9. Rxh2 Qb4+ 10. Nbd2 Qxb2 11. Qc1 $11
    ) 9. Qb3 (9. O-O O-O $14) 9... O-O 10. Nbd2 (10. O-O a6 $11) 10... e5 (10... a6
    11. bxa6 bxa6 12. Rb1 $11) 11. O-O $14 {White fights for the Initiative} e4 (
    11... exd4 12. Bxd4 Rd8 13. Rfd1 $14) 12. Nh4 Nb6 (12... Kh7 $142 $5 13. Nf5
    Qe8 $16) 13. Ng6 $18 Qe8 14. Nxf8 Qxf8 15. d5 Qe7 16. Bxf6 gxf6 (16... Qxf6 17.
    Nxe4 Bxh2+ 18. Kxh2 Qh4+ 19. Kg1 Qxe4 20. Rac1 $18) 17. f4 (17. a4 Bg4 $18)
    17... f5 (17... exf3 18. Rxf3 Bg4 19. Rff1 $18) 18. Be2 (18. a4 Bb4 19. Rfd1
    Qc5 $18) 18... Bc5 19. Rad1 Bd7 (19... c6 20. dxc6 bxc6 21. bxc6 $18) 20. a4 (
    20. Nc4 Nxc4 21. Bxc4 Qd6 $18) 20... a5 (20... c6 21. dxc6 bxc6 22. Nc4 $18)
    21. Nc4 Nxc4 22. Bxc4 (22. Qxc4 $6 Bxe3+ 23. Kh1 Qd6 $14) 22... b6 (22... Qd6
    23. Rc1 $18) 23. g3 (23. Qc3 Rd8 $18) 23... Qf6 24. Kf2 Kf8 25. Rd2 Ke7 (25...
    Kg8 26. Rc1 $18) 26. Qb2 Qxb2 27. Rxb2 h5 (27... Rd8 28. Ke2 $18) 28. h4 (28.
    Rc2 Rd8 $18) 28... Kf6 29. Rc2 Bd6 (29... Rd8 30. Rfc1 $18) 30. Rfc1 Rc8 31.
    Be2 Kg6 32. Rc4 Kh6 33. Bf1 Kg6 34. Bh3 (34. R4c3 Bc5 $18) 34... Kh6 (34... Bc5
    35. Bg2 $18) 35. Rxe4 fxe4 36. Bxd7 Rd8 37. Bf5 Re8 38. Rc4 Bc5 39. Rxe4 (39.
    Bxe4 Kg7 $18) 39... Rxe4 (39... Rd8 $142 $5 $18) 40. Bxe4 Be7 41. Kf3 Bd6 (
    41... f6 42. Bf5 $18) 42. Bf5 f6 43. g4 hxg4+ 44. Kxg4 (44. Bxg4 $6 Kg7 $18)
    44... Bc5 (44... Kg7 45. Be6 $18) 45. e4 Bd4 46. h5 (46. h5 Kg7 47. Bg6 $18)
    1-0
    
    [Event "corr SOK-92-86"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Rohde, Friedhelm"]
    [Result "0-1"]
    [PlyCount "54"]
    [EventDate "1992.??.??"]
    
    1. b4 d5 2. Bb2 Nf6 3. e3 Bf5 4. c4 e6 $15 5. Qa4+ Nbd7 6. Nf3 c6 7. c5 a5 (
    7... Be7 8. Nd4 $15) 8. Bxf6 Qxf6 9. Nc3 Qd8 (9... e5 10. d4 $15) 10. d4 axb4
    11. Qxb4 b6 12. Na4 bxc5 13. Nxc5 Ra5 (13... Nxc5 14. dxc5 Ra5 15. Qd4 $17) 14.
    Rc1 (14. g4 Be4 15. Bg2 $19) 14... Rxa2 15. Qb3 (15. Be2 $19) 15... Qa5+ 16.
    Kd1 (16. Qc3 Nxc5 17. dxc5 Bxc5 18. Qxa5 Rxa5 $19) 16... Bxc5 (16... Nxc5 17.
    dxc5 Rxf2 18. Qb8+ Qd8 19. Qxd8+ Kxd8 20. Ne5 $19) 17. dxc5 O-O (17... Bg4 18.
    Qd3 $19) 18. Qc3 (18. Qb7 Qa4+ 19. Ke1 e5 $19) 18... Qxc3 19. Rxc3 Rb8 20. Nd4
    Rxf2 (20... Rb1+ 21. Rc1 Rxc1+ 22. Kxc1 Rxf2 23. g3 $19) 21. Rc1 $2 (21. Ke1
    Ra2 22. Rb3 Rxb3 23. Nxb3 Ra3 $19) 21... Ra2 (21... Ne5 $142 $19) 22. Nxc6 $17
    Bg4+ 23. Ke1 Rb3 24. Nd4 (24. Ne7+ Kf8 25. Nxd5 exd5 26. Ba6 Rxe3+ 27. Kf1 Rxa6
    28. c6 $19) 24... Rxe3+ 25. Be2 Re4 (25... Raxe2+ $143 26. Nxe2 Rxe2+ 27. Kf1
    $19) (25... Rexe2+ $143 26. Nxe2 Rxe2+ 27. Kf1 $19) 26. c6 Bxe2 (26... Rxd4 $6
    27. Bxg4 Re4+ 28. Kd1 $19) 27. Nxe2 Rexe2+ (27... Rexe2+ 28. Kf1 Nb6 $19) 0-1
    
    [Event "corr SOK-88-25"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Frenzel, Lothar"]
    [Result "0-1"]
    [PlyCount "72"]
    [EventDate "1988.??.??"]
    
    1. b4 d5 2. Bb2 Bf5 3. e3 Nf6 4. c4 e6 $15 5. Qa4+ c6 6. Nf3 (6. c5 Nbd7 $15)
    6... Nbd7 (6... dxc4 7. b5 $17 (7. Bxc4 $2 b5 8. Bxb5 cxb5 9. Qxb5+ Nbd7 $19))
    7. Nc3 (7. Qb3 dxc4 8. Bxc4 Be4 $15) 7... Nb6 (7... dxc4 8. b5 Nb6 9. Qa5 $17)
    8. Qb3 dxc4 9. Bxc4 Be7 (9... Nxc4 10. Qxc4 Bd3 11. Qb3 $17) 10. Be2 $15 O-O
    11. Nh4 (11. d3 Bg4 $15 (11... Bxd3 $2 12. Rd1 $18)) 11... Bd3 $17 12. g3 (12.
    Nf3 $17) 12... Be4 (12... Nc4 $142 $1 13. Nf3 e5 $17) 13. Nxe4 $15 Nxe4 {
    Attacks the backward pawn on d2} 14. Nf3 (14. d3 Nf6 $11) 14... Nd5 (14... Qd5
    15. Qxd5 cxd5 16. a3 $15) 15. a3 Ndf6 (15... a5 16. Qc2 f5 17. Nd4 $11) 16. d3
    Nd6 17. e4 {White fights for the Initiative} Nfe8 (17... Nd7 18. O-O $11) 18.
    O-O Nb5 19. Rfd1 a5 (19... Nf6 20. a4 Nc7 21. Bxf6 Bxf6 22. d4 $11) 20. a4 Nbd6
    21. bxa5 Rxa5 (21... Qd7 $5 $14) 22. e5 $18 Nf5 (22... Nc8 23. Qxb7 Qb6 24.
    Qxb6 Nxb6 25. Nd4 Rxa4 26. Nxc6 $18) 23. Qxb7 c5 (23... Nc7 24. Qxc6 Nd5 25.
    Rdc1 $18) 24. Bc3 Ra8 25. Qe4 (25. d4 Rb8 26. Qe4 Qc8 $18) 25... g6 (25... Nc7
    $5 $16) 26. g4 Nfg7 27. d4 Qc8 28. Bb5 (28. Rdc1 Nc7 $18) 28... Nc7 29. Bc6 (
    29. dxc5 $5 Bxc5 30. Bd7 $18) 29... Nd5 $16 30. Bxd5 exd5 {
    Black gets deadly initiative} 31. Qf4 c4 32. h3 (32. a5 f6 33. Qg3 Qe6 $16)
    32... Ne6 33. Qh6 (33. Qg3 f5 $14) 33... f5 34. Kg2 $4 (34. exf6 $142 Bxf6 35.
    Qe3 $14) 34... fxg4 $19 35. hxg4 Nf4+ 36. Kg3 (36. Kf1 Qxg4 37. Qh1 Nh5 $19)
    36... Ne2+ (36... Ne2+ 37. Kg2 Nxc3 $19) 0-1
    
    [Event "corr 3GMM-23"]
    [Site "?"]
    [Date "1996.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Wong"]
    [Result "1-0"]
    [PlyCount "59"]
    [EventDate "1996.??.??"]
    
    1. b4 d5 2. Bb2 Bg4 3. h3 Bh5 4. g4 Bg6 5. d3 Nd7 6. Bg2 c6 (6... e5 7. Bxd5 c6
    8. Bc4 $15) 7. Nf3 h6 (7... Qc7 8. c4 $15) 8. Nbd2 Ngf6 9. c4 dxc4 (9... e6 10.
    c5 $11) 10. Nxc4 e6 11. Qb3 (11. a3 Be7 $11) 11... Be7 12. Rc1 (12. a3 O-O $11)
    12... O-O 13. Na5 (13. Qc3 Nb6 14. Nxb6 Qxb6 $11) 13... Qb6 (13... Rb8 14. a3
    $11) 14. a3 Rac8 (14... Nd5 15. Bd4 Qb5 16. Qc4 $11) 15. Bd4 (15. Nc4 Qb5 $11)
    15... c5 16. Be3 (16. Bb2 Nd5 $11) 16... Qb5 (16... Nd5 $5 $15) 17. Nh4 $11 Bh7
    18. Bxb7 Rb8 19. a4 Qxb4+ (19... Qb6 20. Nc6 Qxb7 21. Nxe7+ Kh8 $17) 20. Qxb4
    $16 cxb4 21. Bxa7 Rxb7 (21... b3 $5 22. Bxb8 b2 $16) 22. Nxb7 Ra8 23. Bd4 Rxa4
    (23... e5 24. Bb2 Rxa4 25. Nf3 $16) 24. Rc8+ Nf8 25. Nf3 Bg6 (25... Ra2 26. Nc5
    $16) 26. O-O (26. Ne5 b3 27. Nc6 Nd5 $18) 26... Ra2 (26... Nd5 27. Rfc1 $16)
    27. e4 (27. Ne5 Rxe2 28. Nc6 $11 (28. Nxg6 $143 fxg6 29. Kg2 b3 $14)) 27... Kh7
    $2 (27... Nxe4 $142 28. dxe4 Bxe4 $18) 28. Ne5 (28. Bxf6 gxf6 29. Rc7 Ra3 $18)
    28... b3 29. Rb1 Ra4 (29... h5 30. Nc6 Ba3 31. Rxb3 hxg4 32. Ra8 $18) 30. Bc3 (
    30. Bc3 N8d7 31. Nc6 $18) (30. Bc5 $5 Bxc5 31. Nxc5 Ra5 $18) 1-0
    
    [Event "corr SOK-89-43"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Mueller, P."]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "77"]
    [EventDate "1989.??.??"]
    
    1. b4 e5 2. a3 c5 3. bxc5 Bxc5 4. e3 Nc6 5. c4 (5. Qg4 Qf6 $15) 5... Nf6 $17 6.
    Nc3 b6 (6... d5 7. cxd5 Nxd5 8. Nxd5 Qxd5 9. d3 $17) 7. Be2 Bb7 8. Nf3 Qe7 (
    8... e4 $5 9. Ng5 Qe7 $15) 9. d4 $11 exd4 10. exd4 Bd6 11. O-O O-O 12. Bd3 h6 (
    12... Rfe8 13. Re1 Qf8 14. d5 Rxe1+ 15. Nxe1 $11) 13. Nb5 (13. Re1 Qd8 $16)
    13... Bb8 (13... Rfe8 14. Re1 Qf8 15. Rxe8 Rxe8 16. d5 $14) 14. Re1 $16 Qd8 15.
    d5 Na5 16. Bd2 a6 17. Bxa5 axb5 18. Bb4 Re8 19. Qd2 (19. Rxe8+ Qxe8 20. Rc1 Bf4
    $11) 19... bxc4 20. Bxc4 Ng4 (20... Ne4 21. Qd4 Bd6 22. Bxd6 Nxd6 23. Rxe8+
    Qxe8 24. Qxb6 Nxc4 25. Qxb7 Nxa3 26. Qb3 $14) 21. Qd4 Nf6 22. Bb3 d6 23. Rxe8+
    Nxe8 24. Bc3 Nf6 25. Nh4 (25. Qh4 b5 $14) 25... Bc8 26. Bc2 b5 27. Qd3 Ba7 28.
    Re1 Bc5 $2 (28... Qb6 29. Qg3 Kf8 30. Bxf6 gxf6 $18) 29. h3 $4 (29. Bxf6 Bxf2+
    30. Kf1 $18) 29... Kf8 (29... Qb6 30. Qd2 Bb7 31. Bxf6 gxf6 32. Qxh6 Bxf2+ 33.
    Kf1 Qe3 34. Rxe3 Bxe3 35. Bh7+ Kh8 36. Qxf6+ Kxh7 37. Qxf7+ Kh6 38. Qg6#) 30.
    Bb2 (30. Qxb5 $143 Nxd5 31. Bb2 Bxh3 $15) 30... b4 31. axb4 Bxb4 32. Re3 Ra5
    33. Rf3 Qe8 (33... Ba6 $5 34. Qf5 Bc5 $14) 34. Bxf6 $16 Qe1+ 35. Kh2 gxf6 36.
    Qh7 Qe5+ 37. g3 f5 (37... Bb7 38. Nf5 Ke8 39. Qg8+ Kd7 40. Qxf7+ Kc8 $18) 38.
    Bxf5 $18 Bb7 $4 (38... Bxf5 39. Qxh6+ Ke8 40. Rxf5 Qe7 41. Qh8+ Kd7 $18) 39.
    Ng6+ $1 (39. Ng6+ fxg6 40. Bxg6+ Qf6 41. Rxf6#) 1-0
    
    [Event "corr SOK-88-25"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Spiegel, Ulrich"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "61"]
    [EventDate "1989.??.??"]
    
    1. b4 e5 2. a3 c5 3. c4 (3. Bb2 $5 $11) 3... cxb4 $15 4. d4 bxa3 (4... d5 5.
    cxd5 Qxd5 6. Nf3 $15) 5. dxe5 $15 Qa5+ 6. Bd2 (6. Nd2 Qxe5 7. Bxa3 d6 $15) 6...
    Qxe5 7. Nxa3 Nc6 8. Nf3 Qb8 9. e4 Nf6 10. Bd3 Nb4 11. Bb1 Bc5 12. O-O Nc6 13.
    Bc3 d6 (13... Qf4 14. e5 Ne4 15. Bxe4 Qxe4 16. Re1 $11) 14. Qd2 (14. Bxf6 gxf6
    15. Bd3 Rg8 $15) 14... Ne5 15. Nxe5 dxe5 16. Qg5 Bxa3 (16... h6 17. Qxg7 Bxf2+
    18. Rxf2 $18) 17. Qxg7 Rg8 18. Qxf6 Be7 (18... Bd6 19. c5 Be7 20. Qxe5 $15) 19.
    Qh6 (19. Qxe5 Qxe5 20. Bxe5 Bh3 $16) 19... Be6 20. Qxh7 Kd7 $2 (20... f6 $142
    $5 $14) 21. Rd1+ $18 Kc6 22. Bd3 Bf6 (22... Kd7 23. Be2+ Kc6 24. Qh5 $18) 23.
    Qh6 Bg5 24. Qh5 Bf4 25. Qe2 Bg4 26. Qb2 $4 (26. f3 Be6 27. Bd2 Bxd2 28. Rxd2
    $16) 26... Bxd1 $14 27. Rxd1 (27. Qb5+ Kd6 28. Bb4+ Kc7 29. Qc5+ Kd8 30. Qe7+
    Kc8 31. Rxd1 Qc7 $11) 27... a6 (27... Qc7 28. Qb5+ Kd6 29. Bb4+ Ke6 30. Qd5+
    Kf6 31. Bd6 $11) 28. Be2 Rg6 29. c5 {Threatening mate... how?} Qc7 (29... Kxc5
    30. Ba5) 30. Qb3 {Threatening mate... how?} Rd8 31. Qa4+ (31. Qa4+ Kxc5 32.
    Bb4+ Kb6 33. Qa5+ Ka7 34. Qxc7 Rxd1+ 35. Bxd1 $18) 1-0
    
    [Event "corr SOK-92-86"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Frenzel, Lothar"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "144"]
    [EventDate "1992.??.??"]
    
    1. b4 e5 $15 2. b5 c6 3. a4 a6 (3... d5 4. Bb2 Bd6 5. Nf3 $15) 4. Bb2 $11 d6 5.
    c4 Qb6 (5... Be6 6. e4 $15) 6. Qc2 (6. d4 axb5 7. axb5 Rxa1 8. Bxa1 cxb5 9.
    cxb5 e4 $11) 6... Bd7 (6... axb5 7. axb5 Rxa1 8. Bxa1 $15) 7. a5 Qd8 (7... Qc5
    8. Ba3 Qd4 9. Bb2 $11) 8. b6 Nf6 9. e3 c5 10. Nc3 Nc6 11. h3 Nb4 12. Qb1 Be7 (
    12... Qe7 13. Nf3 $11) 13. Be2 Qc8 14. Bf3 (14. Nf3 Bc6 $11) 14... Bf5 15. e4
    Bg6 16. Nge2 O-O 17. d3 h5 (17... Qe6 18. O-O $11) 18. Qd1 Nh7 19. Ng3 h4 20.
    Bg4 Qd8 21. Nf5 Bg5 22. O-O Nf6 23. Bf3 Qd7 24. Qe2 Nc6 25. Nd5 Bxf5 26. Nxf6+
    Bxf6 27. exf5 Qxf5 28. Be4 Qd7 29. Qh5 g6 30. Qh6 Qe7 31. Qd2 (31. Bd5 Nb4 32.
    Qxg6+ Bg7 $16) 31... Bg5 $11 32. Qc3 Nd4 33. Rae1 Rab8 34. Bd5 Kh7 (34... Bf4
    35. Bc1 Bxc1 36. Qxc1 $11) 35. f4 Bf6 (35... Bh6 36. Bc1 $11) 36. Re4 $14 Bg7
    37. Qd2 (37. fxe5 dxe5 38. Qe1 g5 $14) 37... f5 $11 38. Ree1 Bh6 39. Qf2 Qf6
    40. Bxd4 (40. Bc1 Bxf4 41. Bxf4 exf4 42. Qxf4 Rfe8 $11) 40... cxd4 (40... exd4
    $2 41. Re6 Qg7 42. Rfe1 $18) 41. fxe5 (41. Qe2 Bxf4 42. Rxf4 exf4 43. Qe7+ Kh6
    44. Bxb7 Qxe7 45. Rxe7 Kg5 $15) 41... dxe5 $15 42. Qf3 (42. Kh1 Be3 43. Qe2 Qe7
    $15) 42... Be3+ 43. Kh1 Qe7 44. Ra1 Rfc8 (44... Rbe8 45. g4 hxg3 46. Qxg3 $15)
    45. Ra2 $15 Bf4 (45... Re8 46. Re2 $15) 46. Qe2 (46. Raf2 Re8 $15) 46... Qg5
    47. Rf3 Rc5 48. Qe1 Qf6 (48... Bg3 49. Qf1 $15) 49. Qb4 (49. Re2 Be3 $11) 49...
    Qd6 $15 50. Qe1 g5 (50... Bg3 51. Qe2 $15) 51. Re2 $11 Bg3 (51... Kg7 52. Rxf4
    gxf4 53. Rxe5 Rxd5 54. Rxd5 $18 (54. cxd5 $6 Rf8 $16)) 52. Rxg3 hxg3 53. Rxe5
    Rf8 54. Re7+ Kh8 55. Re6 (55. Bxb7 Rxa5 56. Rh7+ Kxh7 57. Qxa5 g4 58. Bxa6 Qf4
    $19) 55... Qb8 56. Re7 (56. Qb4 Rfc8 $11) 56... Qf4 (56... Qd6 $142 $11) 57.
    Re6 (57. Bxb7 $6 Rxa5 58. Re8 Kg7 59. Re7+ Kh8 $11) (57. Rxb7 $143 Qe3 58. Re7
    Qxe1+ 59. Rxe1 Rxa5 $17) 57... g4 58. Re8 Rc8 59. Rxc8 (59. Re7 $142 $11) 59...
    Rxc8 $19 60. Bxb7 (60. Kg1 $142 Qe3+ 61. Qxe3 dxe3 62. Kf1 gxh3 63. gxh3 $17)
    60... Qe3 61. Qf1 Re8 62. Be4 (62. Bxa6 $4 Qe1 63. Kg1 gxh3 64. Bb7 h2+ 65. Kh1
    Qxf1#) 62... Qf2 (62... fxe4 $6 63. Qf6+ Kh7 64. Qf7+ Kh6 65. Qf6+ Kh5 66. Qf5+
    Qg5 67. Qh7+ Qh6 68. Qf5+ Qg5 69. Qh7+ Qh6 70. Qf5+ Qg5 $11) 63. Qc1 f4 (63...
    Kh7 64. c5 fxe4 65. dxe4 Rxe4 66. Qh6+ Kxh6 67. c6 Re1#) 64. Qg1 $17 (64. hxg4
    $4 Kg7 65. Qg1 Rh8+ 66. Bh7 Rxh7+ 67. Qh2 Rxh2#) 64... Kg7 65. b7 Rh8 66. Bf5
    f3 67. Bxg4 Re8 68. Qxf2 gxf2 69. Bxf3 f1=Q+ 70. Kh2 Qxd3 71. c5 (71. Bc6 Rd8
    72. Bd5 $19) 71... Qb5 72. c6 Qxa5 (72... Qxa5 73. g4 Qa3 $19) (72... Qg5 73.
    g4 Qf4+ 74. Kg2 Re3 75. b8=B Qxf3+ 76. Kg1 Re1+ 77. Kh2 Qf2#) 0-1
    
    [Event "corr SOK-91-74"]
    [Site "?"]
    [Date "1991.??.??"]
    [Round "?"]
    [White "Roever"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "50"]
    [EventDate "1991.??.??"]
    
    1. b4 e5 $15 2. e4 Bxb4 $17 3. c3 Be7 4. Qg4 g6 5. f4 (5. Qf3 Nf6 $17) 5... Nf6
    6. Qf3 exf4 7. Bc4 O-O (7... Nc6 8. d4 $17) 8. d4 Nh5 (8... Re8 9. Bxf4 d5 10.
    Bxd5 Nxd5 11. exd5 Ba3+ 12. Ne2 $19) 9. Bxf4 (9. Ne2 d6 $15) 9... Nxf4 $17 10.
    Qxf4 Bg5 11. Qf3 Qe7 (11... c6 12. Nh3 d5 13. Bd3 Bxh3 14. Qxh3 $19) 12. Ne2
    Nc6 13. O-O {The pressure on the backward pawn f7 grows} (13. Bd5 d6 $15) 13...
    d6 (13... Ne5 14. dxe5 Qc5+ 15. Nd4 Qxc4 16. Na3 $17) 14. a4 (14. Bd5 Be6 $15)
    14... Na5 {Black gets the initiative} 15. Ba2 (15. Na3 Bd7 $15) 15... Bd7 (
    15... Kg7 16. Ng3 $15) 16. Bd5 (16. Nf4 Bxa4 17. Bd5 Qd7 $15) 16... c6 17. Ba2
    Rae8 18. Na3 $2 (18. Ng3 $142 $17) 18... Qxe4 $19 19. Ng3 (19. Bxf7+ Kg7 20.
    Qxe4 Rxe4 $19) 19... Qxf3 20. gxf3 Bh3 21. Rfd1 d5 22. c4 (22. Rd3 Re3 23. Rxe3
    Bxe3+ 24. Kh1 h5 $19) 22... Re3 23. Nc2 Rc3 (23... Nxc4 $6 24. Bxc4 dxc4 25.
    Nxe3 Bxe3+ 26. Kh1 $19) 24. cxd5 (24. f4 Bxf4 25. Ne2 Be3+ 26. Nxe3 Rxe3 27.
    Kf2 $19) 24... Rxc2 25. dxc6 (25. Rd3 $19) 25... Be3+ (25... Be3+ 26. Kh1 Bg2#)
    0-1
    
    [Event "corr ICCF T-625-19"]
    [Site "?"]
    [Date "1975.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Nunez Casado, Franco"]
    [Result "1-0"]
    [PlyCount "51"]
    [EventDate "1975.??.??"]
    
    1. b4 e5 2. Bb2 d6 3. b5 Nf6 4. d4 e4 5. c4 (5. d5 Be7 $15) 5... Ng4 (5... Be7
    6. Nc3 $15) 6. e3 Qh4 {Do you see the mate threat?} 7. g3 Qf6 {
    Threatening mate: Qxf2} 8. Qc2 Bf5 (8... Qe7 $142 $5 $11) 9. h3 Qh6 (9... Nh6
    10. Nc3 $16) 10. Bg2 (10. hxg4 Qxh1 11. gxf5 d5 $18) 10... Nxe3 (10... Nf6 $142
    $5 11. g4 Qg6 $16) 11. fxe3 $18 Qxe3+ 12. Ne2 c6 (12... d5 13. Rf1 Bb4+ 14. Bc3
    Bxc3+ 15. Nbxc3 $18) 13. Bc1 Qd3 14. Qxd3 exd3 15. Nec3 Be7 (15... d5 16. Rf1
    Be6 17. cxd5 cxd5 18. Nxd5 $18) 16. O-O Bg6 17. Re1 (17. Be3 d5 18. cxd5 cxb5
    19. Nxb5 O-O $18) 17... f6 (17... Kd8 18. Nd2 $18) 18. Bf4 Kd7 19. Nd2 Bf7 (
    19... Bd8 20. Rab1 $18) 20. Rab1 Re8 21. bxc6+ bxc6 22. Rb7+ Kd8 23. c5 $1 Bf8
    (23... dxc5 {A pinning theme} 24. Bxb8) 24. Reb1 (24. Rxf7 $6 Rxe1+ 25. Kf2 Re8
    26. cxd6 g5 $16) 24... Nd7 25. Bxc6 Be6 26. Rxd7+ $1 (26. Rxd7+ Bxd7 27. Bxa8
    dxc5 28. Rb8+ Bc8 29. d5 $18) 1-0
    
    [Event "corr"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Mueller, HJ."]
    [Result "1-0"]
    [PlyCount "119"]
    [EventDate "1985.??.??"]
    
    1. b4 e5 2. Bb2 d6 3. c4 b6 4. e3 Nd7 5. Qf3 Rb8 6. Ne2 (6. d4 Ngf6 $11) 6...
    Bb7 7. e4 Ngf6 8. Nbc3 Be7 9. Ng3 O-O 10. Bd3 (10. Be2 a6 $11) 10... a5 (10...
    c5 11. b5 $11) 11. b5 Nc5 12. Bc2 c6 13. a4 (13. bxc6 Bxc6 14. Nf5 Bd7 $11)
    13... Qc7 (13... Rc8 14. Nf5 $11) 14. O-O Rfd8 (14... Ne6 $11) 15. Ba3 (15.
    bxc6 Bxc6 16. Nd5 Bxd5 17. exd5 Na6 $14) 15... Ne6 (15... d5 $5 16. exd5 cxd5
    17. cxd5 Nxd5 18. Nxd5 Rxd5 $15) 16. Nf5 $11 Bf8 17. d3 (17. bxc6 Qxc6 18. Bd3
    Qd7 $14) 17... Nd4 (17... d5 18. Bxf8 Rxf8 (18... Nxf8 $143 19. bxc6 Bxc6 20.
    exd5 $16 (20. cxd5 $6 Bd7 21. Ra3 Qc5 $14)) 19. bxc6 dxe4 20. Nxe4 Nxe4 21.
    Qxe4 Bc8 $16) 18. Nxd4 $16 exd4 19. bxc6 dxc3 20. cxb7 Rxb7 21. Rab1 (21. Rfb1
    Be7 $16) 21... Qc6 (21... d5 22. Bxf8 Kxf8 23. exd5 $16) 22. Qe2 (22. Rb3 Be7
    $16) 22... g6 23. Rb5 Bg7 24. f3 (24. Rfb1 Rc8 $16) 24... Nd7 (24... Ne8 25. f4
    $14) 25. Qf2 Nc5 26. Bc1 Na6 27. Be3 Nb4 (27... Rdb8 28. Rfb1 $16) 28. Rb1 (28.
    Rxb6 Rxb6 29. Bxb6 Nxc2 30. Bxd8 Bd4 31. Bxa5 Bxf2+ 32. Rxf2 Ne1 33. Bxc3 Nxd3
    $19) (28. Bxb6 $2 Nxc2 29. e5 Bxe5 $19) 28... Rdb8 29. Kf1 Bf6 30. Ke1 Qc7 31.
    g3 Qd8 32. Kd1 (32. Kf1 Bg7 $16) 32... Kg7 (32... Bg7 33. Bd4 $14) 33. Rb3 Qc7
    34. Bd4 Qd8 (34... Bxd4 35. Qxd4+ f6 36. Qxc3 $16) 35. Rxc3 (35. Bxc3 Bxc3 36.
    Rxc3 Re7 $16) 35... Nc6 36. Bxf6+ Qxf6 37. Ra3 Nd4 38. Rd5 Qxf3+ (38... Nc6 39.
    Rb3 $16) 39. Qxf3 Nxf3 40. d4 (40. h4 Rd7 $16) 40... Nxh2 41. Rxd6 Ng4 42. Rb3
    Nf6 (42... Kf8 43. Kd2 $16) 43. e5 Nd7 $2 (43... Ne8 $142 $5 44. Rc6 f6 $18)
    44. Be4 $18 Rc7 45. Bc6 Rd8 46. d5 (46. Kc2 Kf8 $18) 46... Kf8 (46... Nc5 $142
    47. Rxb6 Rdc8 $18) 47. Kd2 Ke7 48. Rxd7+ Rdxd7 49. Bxd7 Kxd7 50. Kd3 (50. Rxb6
    $6 Rxc4 51. Rf6 Rd4+ 52. Ke3 Rxd5 $14) 50... Rb7 51. c5 $1 {
    White prepares the advance d6} Kc7 (51... bxc5 {Exploits the pin} 52. Rxb7+)
    52. Kc4 bxc5 53. d6+ (53. Rxb7+ Kxb7 54. Kxc5 Kc7 $18) 53... Kc6 (53... Kc8 54.
    Rxb7 Kxb7 55. Kxc5 $16) 54. Rb5 Ra7 55. Rxc5+ Kd7 56. Kb5 h5 $2 (56... Ke6 $18)
    57. Kb6 Ra8 58. Kb7 (58. Rc7+ $142 Ke6 59. Re7+ Kd5 $18) 58... Rg8 $2 (58...
    Rd8 $18) 59. Rc7+ (59. Rxa5 $6 f6 $18) 59... Ke6 60. Re7+ (60. Re7+ Kf5 61. d7
    $18) 1-0
    
    [Event "corr DDR"]
    [Site "?"]
    [Date "1975.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Kuehn, P."]
    [Result "0-1"]
    [PlyCount "48"]
    [EventDate "1975.??.??"]
    
    1. b4 e5 2. Bb2 d6 3. c4 f5 4. e3 $11 Nf6 5. Nf3 Be7 6. d4 e4 7. Nfd2 d5 8. b5
    c6 9. a4 O-O 10. Qb3 Be6 11. Nc3 Nbd7 12. Be2 Qe8 (12... Rc8 13. O-O $11) 13.
    g3 (13. O-O Qf7 $11) 13... Qg6 (13... Qf7 14. c5 $15) 14. Ba3 Bxa3 15. Qxa3 (
    15. Rxa3 Qf7 $15) 15... Rac8 $11 16. O-O (16. Qd6 Ne8 17. Qf4 c5 $11) 16... c5
    $15 17. cxd5 Nxd5 18. Bc4 (18. Nxd5 Bxd5 19. dxc5 Rxc5 $15) 18... Nxc3 $17 19.
    Qxc3 cxd4 20. Qxd4 {Opening the d-file gets Black a lot of play} Nc5 21. Rfc1
    Rfd8 22. Bxe6+ (22. Qe5 Bxc4 23. Rxc4 b6 $15 (23... Rxd2 $143 24. Rxc5 Re8 25.
    Qxf5 $14)) 22... Qxe6 $17 (22... Nxe6 $143 23. Rxc8 Rxc8 24. Qxa7 $14) 23. Qc4
    $2 (23. Qb4 $142 Qd5 24. Qa3 $17) 23... Qxc4 $19 24. Nxc4 Nb3 (24... Nb3 25.
    Rab1 Nxc1 26. Rxc1 Rd5 $19) 0-1
    
    [Event "corr ICCF TT-T375-"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Strunz, R."]
    [Result "*"]
    [PlyCount "105"]
    [EventDate "1985.??.??"]
    
    1. b4 e5 2. Bb2 d6 3. c4 f5 4. e3 $11 Nf6 5. Nf3 Be7 6. d4 e4 7. Nfd2 d5 8. b5
    c6 9. a4 O-O 10. Qb3 Be6 11. Nc3 Nbd7 12. Be2 Nb6 (12... Rc8 13. bxc6 bxc6 14.
    O-O $11) 13. c5 Nbd7 14. g4 (14. O-O Qa5 $11) 14... fxg4 (14... Nxg4 15. Bxg4
    fxg4 16. Ncxe4 $15) 15. Ncxe4 $11 Nxe4 (15... dxe4 {Exploits the pin} 16. Qxe6+
    ) 16. Nxe4 Bh4 (16... Qc7 17. bxc6 bxc6 18. Rb1 $11) 17. Ng3 (17. Rf1 Qa5+ 18.
    Bc3 Qc7 $11) 17... Rf7 (17... Qf6 18. Rf1 $15) 18. O-O (18. Bd3 Qe7 $11) 18...
    Qe7 19. Bc3 (19. Qc3 Raf8 $15) 19... Raf8 (19... Bxg3 $5 20. fxg3 Bf5 $11) 20.
    bxc6 $14 bxc6 21. Qb7 Nf6 22. Qxe7 (22. Qxc6 Bxg3 23. hxg3 Ne4 $14) 22... Rxe7
    $11 23. a5 Ne4 24. Nxe4 dxe4 25. Rab1 Ref7 {
    The pressure on the backward pawn f2 grows} 26. Be1 g6 27. Ba6 h5 (27... g5 28.
    Kg2 $11) 28. f4 $14 g5 (28... Be7 29. Rb7 Bf6 30. Bc3 $14) 29. Bxh4 $16 gxh4
    30. Rb7 h3 (30... Rxb7 31. Bxb7 Bc4 32. Bxc6 Bxf1 33. Kxf1 $16) 31. Rxf7 (31.
    f5 Rxb7 32. Bxb7 Bd5 $16) 31... Rxf7 32. Rb1 Kg7 33. Rb7 Kg6 34. Rb8 Rc7 (34...
    Kg7 35. Bb7 Bd5 36. Kf2 $16) 35. Bb7 (35. Kf2 $16) 35... g3 $2 (35... h4 36.
    Kf2 $16) 36. a6 (36. hxg3 Kf5 $18) 36... Kf5 (36... h4 37. Ra8 $16) 37. Rf8+ (
    37. hxg3 $5 Kg4 38. Kh2 Kf3 $18) 37... Kg4 $16 38. Rf6 gxh2+ 39. Kxh2 Bd5 (
    39... Bd7 40. Rg6+ Kf3 41. Rg3+ Kf2 42. d5 $11) 40. Rg6+ $18 Kf3 41. Rg3+ Ke2
    42. f5 (42. Kxh3 h4 43. Kxh4 Rh7+ 44. Kg4 Rg7+ 45. Kh3 Rxg3+ 46. Kxg3 Kxe3 $17)
    42... h4 (42... Rf7 43. Bc8 $16) 43. Rxh3 $11 Rf7 44. Bc8 Rf6 (44... Rc7 45.
    Be6 $18) 45. Rxh4 (45. Kg2 $142 $5 $16) 45... Kxe3 $11 46. Rh7 Rf8 (46... Bf7
    47. Kg3 $11) 47. Be6 $14 Kxd4 48. Rxa7 Kxc5 49. Rb7 Kd6 (49... e3 50. Re7 $11)
    50. a7 $14 Ra8 (50... Bxe6 51. Rb8 Kc7 52. Rxf8 $18) 51. Bxd5 cxd5 52. f6 Kc6 (
    52... d4 53. f7 Kc6 54. Rb8 Rxa7 55. f8=Q $18) 53. Rg7 (53. Rg7 Kd6 54. Re7 $14
    ) *
    
    [Event "corr SOK-89-36"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Hoffmann"]
    [Result "*"]
    [PlyCount "83"]
    [EventDate "1989.??.??"]
    
    1. b4 e5 $15 2. Bb2 d6 3. c4 f5 4. e3 Nf6 5. Nf3 Be7 6. d4 e4 7. Nfd2 d5 8. Qb3
    c6 9. Nc3 O-O 10. Be2 Be6 11. b5 (11. O-O dxc4 12. Bxc4 Bxc4 13. Nxc4 Nd5 $11)
    11... cxb5 12. Qxb5 Qd7 13. cxd5 Nxd5 14. Bc4 Qxb5 15. Nxb5 Nc6 16. Nc3 (16.
    Ba3 Ncb4 17. Bxb4 Bxb4 $11) 16... Rad8 17. Rb1 Na5 (17... Ncb4 18. Nxd5 Bxd5
    19. Bc3 Nd3+ 20. Ke2 Bxc4 21. Nxc4 $19) 18. Bxd5 Bxd5 19. Nxd5 Rxd5 20. Bc3 b6
    21. Ke2 (21. f3 exf3 22. gxf3 Kf7 $11) 21... Rc8 22. Rhc1 Nc4 (22... Ba3 23.
    Rc2 $11) 23. Ba1 (23. Bb4 Bxb4 24. Rxb4 Nd6 25. Rxc8+ Nxc8 $14) 23... Nd6 (
    23... b5 24. Nxc4 bxc4 25. Rb7 $11) 24. Rxc8+ Nxc8 25. Rc1 Rd8 26. f3 exf3+ 27.
    gxf3 Bd6 28. h4 Ne7 29. Rg1 Kf7 30. d5 g6 31. e4 Bc5 32. Rc1 Rc8 33. Nb3 fxe4
    34. fxe4 Bd6 35. Rf1+ (35. Rxc8 Nxc8 36. Nd2 Bg3 $16) 35... Kg8 (35... Ke8 36.
    Kd3 $16) 36. Kd3 Bg3 37. Bf6 Bd6 (37... Rf8 38. Kd4 $16) 38. Nd4 $18 Rf8 39. e5
    $4 (39. Ne6 $142 Rf7 40. Kd4 $18) 39... Bxe5 $1 $17 (39... Nxd5 $6 40. exd6
    Nxf6 41. Ne6 $11) 40. Bxe5 {Exploits the pin} Nxd5 $4 (40... Rxf1 $142 41. d6
    Nf5 $17) 41. Rxf8+ $18 Kxf8 42. Bd6+ (42. Nc6 $5 Kf7 $18) *
    
    [Event "corr ICCF EU-H-1383"]
    [Site "?"]
    [Date "2005.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Unger, Martin"]
    [Result "1-0"]
    [PlyCount "81"]
    [EventDate "2005.??.??"]
    
    1. b4 e5 2. Bb2 d6 3. c4 f5 4. e3 Nf6 5. Nf3 Be7 6. Qb3 Be6 7. Ng5 Qd7 8. Nc3
    h6 9. Nxe6 Qxe6 10. Nb5 (10. d4 exd4 11. Nb5 Qd7 12. Nxd4 c5 $14) 10... Na6 11.
    d4 (11. c5 $142 d5 12. f4 $16) 11... exd4 $2 (11... c6 $142 12. d5 cxd5 13.
    cxd5 Qxd5 (13... Nxd5 $2 14. Rd1 Nac7 15. Bc4 $18) 14. Qxd5 Nxd5 $14) 12. Nxd4
    $18 Qf7 (12... Qd7 13. c5 dxc5 14. Ne6 $18) 13. Bd3 (13. Nxf5 $5 Ne4 14. g4
    O-O-O $18) 13... g6 $16 14. Qa4+ Kf8 (14... Nd7 $142 15. c5 dxc5 16. Bxa6 cxd4
    17. Bxb7 Rb8 18. Bxd4 O-O $16) 15. Nc6 $4 (15. Nf3 Kg7 $18) 15... Rg8 $4 (15...
    Qe8 $142 16. c5 Nb8 $17) 16. c5 (16. Nxe7 Qxe7 17. O-O Kg7 $18) 16... Qd5 (
    16... Nxc5 17. bxc5 bxc6 18. O-O $16) 17. Nxe7 $18 Kxe7 18. Bxa6 (18. O-O-O
    Qxg2 19. Bc4 Rgf8 $18) 18... Qxg2 19. O-O-O (19. Bxb7 Qxb7 20. c6 Qc8 $16)
    19... bxa6 20. cxd6+ (20. Rhg1 $142 Qxh2 21. Qxa6 $18) 20... cxd6 $11 21. Bxf6+
    (21. Qxa6 Rgc8+ 22. Kb1 Ne4 $14) 21... Kxf6 22. Rxd6+ (22. Qxa6 Kf7 23. Qxd6
    Rac8+ 24. Kb1 $11) 22... Kg5 (22... Kg7 $142 $5 23. Qd1 Rac8+ 24. Kb1 Qe4+ (
    24... Qxf2 $4 25. Qd4+ Kf8 26. Qf6+ Ke8 27. Re6+ Kd7 28. Qe7#) 25. Ka1 Qxb4 26.
    Rd7+ Kh8 27. Qd4+ Qxd4+ 28. exd4 Rg7 $15) 23. h4+ $14 Kh5 24. Qd1+ Qg4 25.
    Qxg4+ Kxg4 26. Rxa6 Rac8+ (26... Kf3 27. Rh2 $14) 27. Kb2 $16 Rc7 (27... Kf3
    28. Rh2 $16) 28. h5 $1 g5 (28... gxh5 29. Rg1+ (29. Rxh6) (29. Rxh6)) 29. Rxh6
    Rgc8 (29... Kf3 30. Rf6 Kg2 31. Rb1 Kxf2 32. Rxf5+ Kg2 33. Rd1 $16) 30. Ra6 (
    30. Kb1 Rb8 31. a3 a5 $18) 30... Rc2+ (30... Kf3 $5 $16) 31. Kb1 $18 Rxf2 (
    31... Kf3 32. Rxa7 g4 33. h6 $18) 32. h6 Rh8 (32... f4 33. exf4 Rxf4 $18) 33.
    Rxa7 Re2 34. h7 (34. Rg7 Rxe3 35. h7 Ree8 $18) 34... Rxe3 35. Rg7 Ree8 36. Rg1+
    (36. a4 f4 $18) 36... Kf4 37. b5 (37. R1xg5 $143 Re1+ 38. Kb2 Rh1 $16) 37...
    Rb8 (37... Re5 38. Rf1+ Kg4 39. a4 $18) 38. a4 Ra8 (38... g4 $142 $18) 39. b6
    Rxa4 40. b7 Rb4+ (40... Ra7 41. Rh1 Kf3 42. Kc2 $18) 41. Kc2 (41. Kc2 Rxb7 42.
    Rxb7 Rc8+ 43. Kd3 $18) 1-0
    
    [Event "corr ICCF"]
    [Site "?"]
    [Date "1996.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Tikhanov"]
    [Result "1-0"]
    [PlyCount "57"]
    [EventDate "1996.??.??"]
    
    1. b4 e5 2. Bb2 d6 3. c4 f5 4. e3 $11 Nf6 5. Nf3 Be7 6. Be2 O-O 7. O-O c6 (7...
    e4 8. Ng5 $11) 8. Qb3 Kh8 (8... e4 9. Nd4 $11) 9. d3 Be6 10. Qc2 (10. d4 e4 11.
    Ng5 Bg8 $11) 10... a5 11. b5 (11. d4 axb4 12. dxe5 Ne4 $11) 11... cxb5 12. cxb5
    Nbd7 13. Nbd2 (13. Nc3 Rc8 $11) 13... Nb6 (13... Rc8 14. Qa4 $11) 14. Ng5 (14.
    d4 Rc8 15. Qb1 e4 $11) 14... Bg8 (14... Bd7 15. d4 Nfd5 16. Nh3 $15) 15. Nh3 (
    15. Rfc1 Ng4 16. Nge4 Rc8 $11) 15... Qd7 16. d4 Rfc8 17. Qd1 e4 18. Nf4 (18. a4
    Nfd5 $15) 18... Nfd5 (18... a4 19. Bc1 $15) 19. Nxd5 Bxd5 20. a4 Rc7 21. f3 Bg5
    22. Ra3 {White gets the initiative} exf3 23. Nxf3 Bf6 (23... Bh6 24. Nh4 Be4
    25. Bc1 $17) 24. Nd2 (24. Qd2 Nc4 25. Bxc4 Rxc4 $15) 24... Re8 25. Bd3 Be4 (
    25... Rxe3 $142 $5 26. Rxf5 Qe6 $15) 26. Bxe4 $14 fxe4 27. Bc3 Nd5 (27... Ra8
    $5 $11) 28. Bxa5 $14 b6 (28... Rcc8 $5 $14) 29. Qb3 $16 (29. Qb3 Nxe3 30. Qxe3
    bxa5 31. Nxe4 $18) 1-0
    
    [Event "corr ICCF WT-M-454"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Matzke, Sandor"]
    [Result "1-0"]
    [PlyCount "61"]
    [EventDate "1988.??.??"]
    
    1. b4 e5 2. Bb2 d6 3. c4 g6 4. d4 Bg7 5. dxe5 a5 6. Qd2 dxe5 7. Qxd8+ Kxd8 8.
    b5 c5 (8... Bf5 9. Nf3 Nd7 10. c5 $11) 9. f4 Be6 10. Nd2 Nd7 11. Ngf3 Ne7 12.
    Nxe5 Bxe5 13. fxe5 Nf5 14. Kf2 a4 15. e3 a3 16. Bc3 Kc7 17. Be2 Rad8 18. Rhd1
    b6 19. Rab1 f6 $4 (19... Rhe8 $142 $16) 20. exf6 $18 Nd6 21. Rb3 (21. e4 $5
    Rhf8 22. e5 Nf7 $18) 21... Rhf8 22. Rxa3 Nxf6 23. Bxf6 (23. Ke1 Kb8 $18) 23...
    Rxf6+ 24. Ke1 h6 25. Ra7+ Kb8 26. Ra6 Kc7 27. Rc1 Bc8 (27... Rdf8 28. Ra7+ Kb8
    29. Re7 $18) 28. Ra7+ Bb7 29. Bf3 Kb8 30. Ra4 Nf5 31. Rc3 (31. Rc3 Nh4 32. e4
    $18) 1-0
    
    [Event "corr ICCF EU/M/1175"]
    [Site "?"]
    [Date "2001.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Gnirk, Hajo"]
    [Result "0-1"]
    [PlyCount "58"]
    [EventDate "2001.??.??"]
    
    1. b4 e5 2. Bb2 d6 3. e3 f5 4. Qh5+ g6 5. Qf3 (5. Qd1 Bg7 (5... Nf6 $11 6. Be2
    (6. d4 exd4 7. Bxd4 Bg7 8. c3 c5 9. Bxf6 $11 {0.00/9}) (6. Nf3 Bg7 7. Be2 O-O
    8. O-O e4 9. Nd4 $11 {-0.06/9}) 6... Be6 7. Nf3 Bg7 8. O-O Nc6 9. b5 $11 {
    0.06/9}) (5... Be6 6. c4 (6. Nf3 Bg7 7. Be2 g5 8. O-O g4 9. Ne1 $11 {0.00/9}) (
    6. d4 Bg7 7. Ne2 Nd7 8. d5 Bf7 9. c4 $11 {-0.19/9}) 6... Bg7 7. d4 Nd7 8. d5
    Bf7 9. Nf3 $11 {0.16/9}) 6. d4 (6. Nf3 Be6 7. Be2 Nd7 8. O-O Qf6 9. Nc3 $11 {
    -0.03/9}) (6. Be2 Be6 7. Nf3 g5 8. O-O g4 9. Ne1 $11 {0.00/9}) 6... Nd7 7. Nd2
    Qe7 8. Be2 Ngf6 9. a3 $11 {0.00/9}) 5... Bg7 6. Nc3 (6. d4 e4 7. Qd1 Nf6 8. Nh3
    Nc6 9. b5 $11 {-0.03/9}) (6. a3 Nc6 7. Nc3 Nf6 8. Bb5 Bd7 9. Nd5 $11 {-0.25/9})
    6... Ne7 (6... Nc6 7. a3 Nf6 8. Bb5 Bd7 9. Nd5 $11 {-0.25/9}) 7. Bc4 (7. Nh3
    Nd7 8. a3 a5 9. b5 $11 {0.00/9}) 7... e4 8. Qe2 (8. Qg3 Nbc6 9. a3 d5 $11) 8...
    d5 $15 9. Bb3 O-O 10. O-O-O (10. Nh3 a5 11. bxa5 c5 $11) 10... a5 (10... Qd6
    11. a3 $15) 11. b5 Bxc3 12. dxc3 (12. Bxc3 $2 a4 13. Bc4 dxc4 14. Qxc4+ Qd5 15.
    Qxc7 Nd7 $19) 12... a4 13. Bxd5+ Nxd5 14. c4 $2 (14. Qd2 $5 Qd7 15. Qxd5+ Qxd5
    16. Rxd5 $17) 14... a3 (14... Qg5 15. cxd5 Qxg2 $19) 15. Ba1 c6 (15... Qg5 $142
    $5 16. cxd5 Qxg2 $11) 16. cxd5 $16 cxd5 17. Qd2 (17. Nh3 Be6 $16) 17... d4 $14
    18. exd4 (18. Ne2 $142 $5 $14) 18... Qd5 $15 19. Qc3 Be6 (19... Qxa2 $2 20. d5
    Kf7 21. Nf3 $18) 20. Ne2 (20. Qb3 Rc8 21. Qxd5 Bxd5 $15) 20... Rc8 $15 (20...
    Qxb5 $4 21. d5 Qb2+ 22. Bxb2 axb2+ 23. Qxb2 $18) (20... Qxa2 $4 21. d5 $1 Qxa1+
    22. Qxa1 $18) 21. Qb4 (21. Qb3 $5 Qxb3 22. axb3 Bxb3 23. Nc3 $15) 21... Qxa2
    $17 22. Bc3 Bc4 23. Nf4 Bb3 $1 24. Rd2 (24. Qxb3+ Qxb3) (24. cxb3 Qb2#) 24...
    Ra4 25. Qe7 $4 (25. cxb3 $142 Rxb4 26. Rxa2 Rxc3+ 27. Rc2 Rcxb3 28. Rc8+ Kf7
    29. Kc2 $19) 25... Rxc3 26. Qe8+ Kg7 27. Kd1 (27. Qe7+ Bf7 28. Kd1 Qb1+ 29. Ke2
    Qxb5+ 30. Ke1 $19) 27... Qb1+ 28. Ke2 Bc4+ (28... Qxh1 $6 29. Qe7+ Kg8 30. Qe8+
    Kg7 31. Qe7+ Kh6 32. Qh4+ Kg7 33. Qe7+ $11) 29. Nd3 exd3+ (29... exd3+ 30. cxd3
    Bxd3+ 31. Kf3 Bc4+ 32. Kf4 Qxh1 33. Qe7+ Bf7 34. Qe5+ Kh6 $19) 0-1
    
    [Event "corr SOK-92-79"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Zylla, Johannes"]
    [Result "0-1"]
    [PlyCount "62"]
    [EventDate "1992.??.??"]
    
    1. b4 e5 $15 2. Bb2 d6 3. e3 f5 4. Bc4 Nf6 5. a3 Nbd7 6. Nf3 Nb6 7. Ba2 Na4 8.
    Bc1 Bd7 9. c4 (9. O-O e4 10. Nd4 d5 $11) 9... e4 10. Nd4 g6 11. Qb3 (11. O-O
    Bg7 $11) 11... Qe7 12. O-O Bg7 13. Nc3 Nxc3 14. dxc3 c5 (14... O-O-O 15. c5 $15
    ) 15. bxc5 $11 dxc5 16. Qxb7 O-O 17. Ne2 (17. Nb5 Rfb8 18. Qa6 Rb6 $11) 17...
    Rfb8 $15 18. Qc7 Ng4 19. Rd1 Be5 (19... Qh4 $142 20. Qg3 Qxg3 21. Nxg3 Bxc3 $17
    ) 20. Rxd7 $4 (20. Qxd7 $142 Rd8 21. Qa4 $14 (21. Qxe7 $4 Rxd1#)) 20... Qh4 $19
    {Threatening mate... how?} (20... Bxc7 $2 21. Rxe7 Bd6 22. Rd7 Bxh2+ 23. Kf1
    $18) 21. Rg7+ Bxg7 22. Qg3 Rd8 (22... Qd8 23. Nd4 Be5 24. f4 exf3 25. Qxf3 cxd4
    26. cxd4 Bxd4 27. Rb1 Rxb1 28. c5+ Kg7 29. Bxb1 Bxc5 30. Be4 $19) 23. Bb3 (23.
    Qxh4 $4 Rd1#) 23... Qe7 (23... Qxg3 24. Nxg3 Rab8 25. Bc2 $19) 24. f4 (24. h3
    Rab8 25. hxg4 Rxb3 26. gxf5 Be5 $19) 24... Rab8 25. Bc2 Qe6 26. h3 Qxc4 27. Qe1
    Nf6 28. Bb1 Kh8 29. Kf2 (29. Ba2 Qd3 30. Kh2 Qc2 $19) 29... Qa4 30. Qg1 (30.
    Bd2 $19) 30... Rd1 31. Qh2 Rxc1 (31... Rxc1 32. Nxc1 Rb2+ 33. Ne2 Qd1 $19) 0-1
    
    [Event "corr ICCF EU/M/GT/175 (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Mayr, F."]
    [Result "0-1"]
    [PlyCount "54"]
    
    1. b4 e5 2. Bb2 d6 3. e3 f5 4. Bc4 Nf6 5. Ne2 (5. a3 d5 (5... a5 6. Ba2 Bd7 7.
    f4 axb4 8. axb4 Na6 9. Bb3 $11 {0.00/9}) 6. Be2 (6. Bb5+ c6 $11 7. Be2 Bd6 8.
    Nh3 O-O 9. f4 $15 {-0.28/9}) 6... Bd6 7. c4 dxc4 8. Bxc4 a5 9. Nf3 $11 {0.00/9}
    ) (5. Bb3 a5 (5... Nc6) 6. bxa5 Nc6 7. f4 e4 8. a6 Rxa6 9. Ne2 $11 {-0.22/9}) (
    5. Be2 Be6 6. Nf3 Nd5 7. a3 Be7 8. O-O O-O 9. d4 $11 {0.00/9}) 5... d5 (5... a5
    6. bxa5 Nc6 7. O-O Nxa5 8. Bb3 Be7 9. d4 $11 {-0.09/9}) (5... Nbd7 6. Be6 Nb6
    7. Bb3 Qe7 8. O-O a5 9. bxa5 $11 {0.03/9}) 6. Bb3 Bd6 (6... a5 7. bxa5 Bd6 8.
    f4 e4 9. Bc3 $11 {-0.06/9}) 7. c4 (7. f4 e4 8. b5 a6 9. Nbc3 $11 {-0.12/9})
    7... c6 (7... Na6 8. a3 c5 9. f4 exf4 10. Nxf4 cxb4 11. O-O $11 (11. Nxd5 $143
    Nxd5 12. Ba4+ Kf7 13. cxd5 Qh4+ 14. Kf1 Nc5 $17 (14... Bxh2 $143 15. Be5 f4 16.
    d4 $11)) (11. cxd5 $6 Bxf4 12. exf4 O-O $11)) 8. c5 $11 Bc7 9. O-O O-O 10. d3
    f4 (10... a5 11. a3 $11) 11. exf4 exf4 12. Nd2 Bg4 13. f3 Bf5 14. Ne4 Nbd7 (
    14... Nfd7 15. Qd2 $11) 15. Qd2 Nh5 16. Rad1 (16. Nd4 Kh8 $11) 16... Kh8 $11
    17. Nf2 Qh4 (17... Qg5 18. Nd4 Rae8 19. Rfe1 $11) 18. Nh1 (18. Nd4 $5 $14)
    18... Rae8 19. Rf2 (19. Nf2 Nhf6 $11) 19... Ne5 (19... Re3 20. Nc1 $17) 20. g4
    Nxf3+ $1 21. Rxf3 Qxg4+ 22. Kf2 Be4 $1 23. Nd4 (23. dxe4 Qh4+ (23... dxe4))
    23... Bxf3 24. Nxf3 Re3 25. Ng1 f3 26. Qxe3 Qg2+ 27. Ke1 Bf4 (27... Bf4 28. Rd2
    Bxe3 29. Rxg2 fxg2 $19) (27... Qxh1 $6 28. Qf2 $15) 0-1
    
    [Event "corr SOK-92-79"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Feilmayr, Erwin"]
    [Result "0-1"]
    [PlyCount "42"]
    [EventDate "1992.??.??"]
    
    1. b4 e5 2. Bb2 d6 3. e3 Nf6 4. c4 g6 5. Nf3 Bg7 6. Nc3 O-O 7. Be2 e4 8. Nd4 c5
    9. bxc5 dxc5 10. Nb3 Qe7 11. Qc2 (11. Nd5 Nxd5 12. Bxg7 Kxg7 13. cxd5 Qg5 $15)
    11... Rd8 $15 12. h3 (12. d4 exd3 13. Bxd3 Nc6 $17) 12... Nc6 13. a3 Ne5 (13...
    Bf5 14. O-O $17) 14. Nc1 (14. Nxe4 $5 Nxe4 15. Qxe4 $11) 14... b6 (14... Qd6
    15. f3 Nd3+ 16. Bxd3 exd3 17. Qb3 Qg3+ 18. Kf1 $17) 15. O-O Bb7 16. a4 (16. d3
    $142 exd3 17. Bxd3 $17) 16... Nf3+ $4 (16... Qe6 17. Nb5 Ne8 18. a5 $17) 17.
    Bxf3 $4 (17. gxf3 $142 exf3 18. Bd3 $16) 17... exf3 $17 18. g3 (18. gxf3 $5 Qe6
    19. Kg2 $17) 18... Qe6 $19 {Threatening mate... how?} 19. Kh2 Bc8 20. g4 Nxg4+
    $1 21. Kg1 (21. hxg4 Qxg4) 21... Ne5 (21... Ne5 22. Nd3 Nxd3 $19) 0-1
    
    [Event "corr ICCF EU/M/1224"]
    [Site "?"]
    [Date "2000.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Meeussen, Leo"]
    [Result "1-0"]
    [PlyCount "97"]
    [EventDate "2000.??.??"]
    
    1. b4 e5 2. Bb2 d6 3. g3 f5 4. Bg2 Nf6 5. c4 g6 (5... c6 6. d4 $11) 6. d4 (6.
    Nh3 Bg7 $11) 6... exd4 7. Qxd4 Bg7 8. Qe3+ Qe7 (8... Kf7 9. Nf3 Re8 10. Qd3 $11
    ) 9. Qxe7+ Kxe7 10. Na3 (10. Nf3 Nc6 11. a3 Kf7 $14) 10... a6 (10... Nc6 11.
    Bc3 $11) 11. Nh3 (11. Nf3 Nc6 12. Bc3 Re8 $11) 11... Nbd7 (11... Nc6 12. Bc3
    $11) 12. O-O $14 Kf7 (12... Re8 13. e3 $14) 13. Ng5+ Ke7 14. Rfe1 h6 15. Nh3
    Kf7 16. Nf4 Re8 17. Rad1 g5 18. Bxf6 (18. Nd3 Ne4 19. Bf3 Bxb2 20. Bh5+ Ke6 21.
    Nxb2 Re7 $11) 18... Nxf6 19. Bd5+ Nxd5 (19... Ke7 $5 20. Ng6+ Kd8 $15) 20. Nxd5
    $16 Re7 (20... Rb8 21. Nxc7 Re4 22. Nd5 $14) 21. Nxe7 Kxe7 22. Rd3 Be6 23. e4
    f4 24. Re2 Be5 25. Kg2 Rf8 26. Rc2 (26. f3 g4 27. Rf2 gxf3+ 28. Rdxf3 Rg8 29.
    Rxf4 Bxf4 30. Rxf4 Rg5 $14) 26... f3+ 27. Rxf3 (27. Kf1 g4 $14) 27... Bh3+ 28.
    Kxh3 {Theme: Deflection from f3} Rxf3 29. Nb1 Bd4 {
    Exerts pressure on the backward pawn} (29... h5 30. Kg2 g4 31. h3 $14) 30. Kg2
    $14 g4 31. h3 h5 32. hxg4 hxg4 33. Re2 Ke6 34. b5 a5 35. Kf1 (35. Nd2 Rc3 $14)
    35... Ke5 (35... a4 36. Kg2 $11) 36. Rc2 (36. Nd2 $5 Rc3 37. Kg2 $14) 36... Bc5
    $15 37. Re2 Bd4 (37... Bb4 38. Kg2 $15) 38. Kg2 (38. Nd2 Rc3 $11) 38... Bc3 39.
    Rc2 (39. Na3 Kd4 $11) 39... Bd4 (39... Bb4 40. Nd2 Bxd2 41. Rxd2 $15) 40. Re2
    $11 Bc5 (40... Bc3 41. Na3 $11) 41. Nd2 Rc3 42. f4+ {
    The passed pawn on f4 quickly leads to threats} Kd4 (42... gxf3+ 43. Nxf3+ Ke6
    44. e5 $14) 43. Nb3+ $14 Kd3 44. Kf1 (44. Rd2+ Kxe4 45. Nxa5 b6 $11) 44... Kxc4
    (44... Be3 $5 $17) 45. Nxc5 Kxc5 46. f5 Rxg3 47. f6 Rh3 48. f7 Rh8 49. e5 (49.
    e5 dxe5 50. Rxe5+ Kc4 51. Re8 $18) 1-0
    
    [Event "corr W-ch M798"]
    [Site "?"]
    [Date "1999.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Von Weizsaecker, Robert K"]
    [Result "0-1"]
    [WhiteElo "2085"]
    [PlyCount "36"]
    [EventDate "1999.??.??"]
    
    1. b4 e5 2. Bb2 d6 3. g3 Nf6 4. Bg2 g6 5. c4 Bg7 6. d4 (6. Nf3 O-O 7. d3 (7.
    O-O e4 (7... c6 8. d3 Be6 9. Ng5 Bd7 10. Qd2 h6 $11 {-0.03/9}) (7... Re8 8. Nc3
    e4 9. Nd4 c5 10. bxc5 dxc5 $11 {-0.06/9}) 8. Ne1 Nc6 9. b5 Ne5 10. Qc2 Bf5 $11
    {-0.13/9}) 7... h6 (7... Be6 8. O-O c6 9. Nc3 Qb6 10. Rb1 Qxb4 $11 {0.00/9}) (
    7... Nc6 8. b5 Ne7 9. O-O a6 10. a4 axb5 $11 {0.00/9}) (7... Na6 8. a3 c6 9.
    O-O Re8 10. Nc3 d5 $11 {0.00/9}) (7... a6 8. O-O Nc6 9. a3 Re8 10. Nc3 h6 $11 {
    0.03/9}) (7... Re8 8. O-O a5 9. b5 Nbd7 10. Nc3 Nc5 $11 {0.06/9}) (7... a5 8.
    b5 Re8 9. O-O Nbd7 10. Nc3 Nc5 $11 {0.03/9}) (7... c6 8. O-O Re8 9. Nbd2 Qe7
    10. a4 Nbd7 $11 {-0.06/9}) 8. O-O Be6 9. Nc3 Nbd7 10. a4 c6 $11 {-0.09/9}) 6...
    Nbd7 (6... exd4 7. Bxd4 (7. Qxd4 O-O (7... Nc6 8. Qc3 O-O 9. Nf3 Re8 10. b5 Nb8
    $11 {-0.25/9}) 8. Nc3 Nfd7 9. Qf4 Nc6 10. a3 a5 $15 {-0.44/9}) 7... O-O (7...
    Nc6 8. Bc3 O-O 9. Nf3 Be6 10. Nbd2 d5 $11 {-0.13/9}) 8. b5 Re8 9. Nf3 c5 10.
    Bc3 Be6 $15 {-0.31/9}) 7. Nf3 O-O (7... Qe7 8. O-O e4 9. Ne1 Nb6 10. c5 Nc4 $11
    {-0.22/9}) 8. Nbd2 (8. O-O Qe7 9. Nc3 Nb6 10. dxe5 dxe5 $11 {-0.09/9}) 8... e4
    9. Ng5 (9. Nh4 Re8 (9... Qe7 $15 10. Qb3 Nb6 $15 {-0.41/9}) 10. O-O e3 $15 {
    -0.47/9}) 9... e3 10. Nde4 Ng4 (10... Nb6 $15 {-0.66/9}) 11. Nh3 $2 (11. f4
    $142 $5 $17) 11... exf2+ $19 12. Kd2 $2 (12. Nexf2 $142 Ne3 13. Qb3 Nxg2+ 14.
    Kf1 $19) 12... Nb6 13. Kd3 (13. Qb3 Be6 14. Kc1 Nxc4 15. Nf4 $19) 13... Nxc4 $1
    14. Qc1 (14. Kxc4 Ne3+ (14... d5+)) 14... d5 15. Nd2 Nce3 16. Bf3 (16. Nxf2
    Bf5+ 17. Be4 Nxf2+ 18. Kxe3 Nxe4 $19) 16... Bf5+ 17. Kc3 Bxd4+ 18. Kb3 Bc2+ (
    18... Bc2+ 19. Qxc2 Nxc2 $19) 0-1
    
    [Event "corr SOK-87-14"]
    [Site "?"]
    [Date "1987.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Roggensack_Hanspach, Peter"]
    [Result "*"]
    [PlyCount "72"]
    [EventDate "1987.??.??"]
    
    1. b4 e5 2. Bb2 e4 3. c4 Nf6 4. Qb3 (4. a3 d5 5. cxd5 Nxd5 $15) 4... c6 (4...
    d5 5. cxd5 Nxd5 6. Nc3 Nxc3 7. Qxc3 $15) 5. d3 (5. Nc3 d5 6. cxd5 cxd5 $11)
    5... d5 $15 6. dxe4 (6. cxd5 exd3 7. dxc6 Nxc6 $11) 6... dxc4 $17 7. Qxc4 Be6
    8. Qd3 Bxb4+ 9. Bc3 Qa5 10. a3 Bxc3+ 11. Qxc3 Qa4 12. f3 (12. Nd2 O-O $17 (
    12... Nxe4 $143 13. Qxg7 Rf8 14. Nxe4 Qxe4 15. Rd1 $11)) 12... Na6 (12... O-O
    13. Qb4 Qxb4+ 14. axb4 $17) 13. e3 $15 O-O-O (13... O-O $5 $15) 14. Nd2 $11 Nc7
    15. Rb1 Rd7 16. Be2 (16. Rb4 Qa5 $11) 16... Rhd8 $15 17. Rb2 Nfe8 (17... b6 18.
    Bc4 $15) 18. g4 (18. Bd1 $5 Nb5 19. Qxc6+ (19. Bxa4 $143 Nxc3 20. Bb3 Bxb3 21.
    Nxb3 Rd3 $17) 19... bxc6 20. Bxa4 $11) 18... Nd6 $15 19. Nb1 Ndb5 (19... f6 20.
    Nd2 $15) 20. Qc5 Na6 (20... Qa5+ 21. Rb4 $17) 21. Qe5 Bc4 22. Kf2 g6 23. Bxc4
    Qxc4 24. Ne2 Nc5 25. Nf4 Nd3+ (25... Na4 26. Rb4 Qc2+ 27. Kg3 $17) 26. Nxd3
    Rxd3 27. Re1 Nxa3 (27... h6 $15) 28. Qe7 (28. Nxa3 Rxa3 29. Reb1 $11) 28... Nb5
    $17 29. Rb4 (29. Qh4 f5 $17) 29... Qe6 (29... Qa2+ 30. Re2 Qe6 31. Qh4 $17) 30.
    Qh4 a5 (30... h5 31. g5 $17) 31. Ra4 Qe5 (31... b6 32. Qxh7 Qb3 $19) 32. Rxa5
    $11 Qb2+ 33. Kf1 (33. Kg1 $142 $5 Kd7 34. Qxh7 $11) 33... Kc7 $17 34. Qf2 Qb3 (
    34... Qxf2+ $142 35. Kxf2 Kb6 $17) 35. Ra1 $4 (35. Kg2 $142 $15) 35... Rd1 $19
    36. Qe2 (36. Rxd1 Rxd1+ 37. Kg2 Rxb1 38. Ra2 $19) 36... Rxe1+ (36... Rxe1+ 37.
    Kxe1 Nc3 $15) *
    
    [Event "corr 3GMMsemi-08"]
    [Site "?"]
    [Date "1998.??.??"]
    [Round "?"]
    [White "Hjortstam, Kurt"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "37"]
    [EventDate "1998.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. a3 c5 4. e4 cxb4 5. Bxe5 fxe5 6. Qh5+ g6 $4 (6... Ke7
    $142 7. Qxe5+ Kf7 8. Qd5+ Kg6 9. Qf5+ Kh6 10. Qh3+ Kg6 11. Qf5+ Kh6 12. Qh3+
    Kg6 13. Qf5+ $11) 7. Qxe5+ $18 Qe7 8. Qxh8 Nf6 9. Nf3 (9. Ne2 $18) 9... d6 $2 (
    9... Nxe4 $5 10. Be2 Qg7 11. Qxg7 Bxg7 $16) 10. e5 (10. axb4 Kd7 11. Bc4 Nc6
    $11) 10... dxe5 11. Bc4 (11. axb4 Nc6 12. b5 $16) 11... Nc6 $16 12. Ng5 Nd4 13.
    O-O (13. Kd1 Kd7 14. Nxh7 Nxh7 15. axb4 $11) 13... Bf5 (13... Kd7 $142 $5 14.
    Bf7 h6 $16) 14. c3 O-O-O (14... bxc3 15. Nxc3 O-O-O 16. Nf7 $16) 15. Nf7 (15.
    cxd4 $6 Bh6 16. Qxd8+ Qxd8 $15) 15... Ne2+ 16. Kh1 Re8 17. Bb5 $4 (17. axb4
    $142 Bh6 18. Qxe8+ (18. Nxh6 $6 Rxh8 19. Nxf5 gxf5 20. Bxe2 Kb8 $11) (18. Bxe2
    $2 Qxf7 19. Qxe8+ Nxe8 $19) 18... Nxe8 19. Nxh6 $18) 17... Bd7 $11 18. Bc4 (18.
    Bxe2 $143 Qxf7 19. axb4 Kb8 $17) 18... Bh6 19. Qxe8+ (19. Nxh6 {
    Theme: Deflection from h8} Rxh8) 0-1
    
    [Event "corr ICCF WT-M-GT-196"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Voloskov, Vasily Yakinovich"]
    [Result "1-0"]
    [PlyCount "101"]
    [EventDate "1985.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. a3 d5 4. e3 Be6 5. d4 e4 6. Nc3 (6. c4 a5 $11) 6... a5
    $15 7. b5 Be7 (7... Bd6 8. Nh3 $15) 8. Nh3 $11 Nh6 (8... Bd6 9. Nf4 Bxf4 10.
    exf4 $11) 9. Nf4 Bf7 10. g3 (10. Be2 O-O $11) 10... O-O $15 11. Bh3 f5 12. g4 (
    12. O-O $5 $15) 12... Bg5 $17 13. Rg1 (13. Ng2 Be6 14. gxf5 Nxf5 $17) 13...
    Bxf4 14. exf4 Qh4 (14... Nxg4 $6 15. Bxg4 fxg4 16. Qxg4 $15) 15. Rg3 c6 (15...
    fxg4 16. Bxg4 Qxh2 17. Bh3 $17) 16. bxc6 $15 bxc6 17. g5 (17. f3 fxg4 18. fxg4
    Re8 $15) 17... Bh5 18. Qb1 (18. Qd2 Ng4 $17) 18... Ng4 19. Bc1 (19. Qa2 Na6 $17
    ) 19... Nxh2 20. Qb7 Nf3+ 21. Kf1 (21. Rxf3 exf3 (21... Bxf3 $6 22. Bf1 Qh1 23.
    Nxd5 $19) 22. Qxa8 Re8+ (22... Qxh3 $6 23. Rb1 Qh1+ 24. Kd2 $11) 23. Kd2 Qxf2+
    (23... Qxh3 24. Rb1 (24. Qxa5 Qf1 25. Ne4 fxe4 $19) 24... Qf1 25. Rxb8 Qxf2+
    26. Kd3 Qf1+ 27. Kd2 Qe1+ 28. Kd3 $15) 24. Kd3 Qg3 $19) 21... Bg4 22. Bg2 Qh2 {
    Do you see the mate threat?} 23. Ne2 Ra6 24. Rb1 h5 $4 (24... Nh4 25. Qc7 Nxg2
    26. Rxb8 Bxe2+ 27. Kxe2 Qh5+ 28. Kd2 e3+ 29. fxe3 Qh2 30. Rxg2 Qxg2+ 31. Kc3
    Qg1 $18) 25. Qc7 $18 Kh8 (25... c5 $142 26. Rxb8 Rxb8 27. Qxb8+ Kh7 $18) 26.
    Rxb8 {Threatening mate... how?} Ra8 27. Rb7 (27. Rxa8 Rxa8 28. Qxc6 Rb8 29.
    Qxd5 Nh4 $18) 27... Rg8 28. c4 (28. Qxc6 $142 $5 Rad8 29. Be3 $18) 28... Rac8 (
    28... dxc4 29. Be3 $16) 29. Qd7 (29. Qf7 Rcf8 30. Qd7 h4 31. Rxg4 fxg4 32. Qxg4
    Qg1+ 33. Nxg1 Nh2+ 34. Ke2 Nxg4 $18) 29... Nh4 (29... dxc4 30. Be3 $16) 30. Ng1
    a4 (30... Nxg2 31. Rxg2 Qh1 32. Rg3 (32. cxd5 $2 Bh3 33. Ke2 Bxg2 $19) 32...
    dxc4 33. Qf7 $16) 31. Bd2 (31. Qe6 Rgf8 $18) 31... e3 (31... Nxg2 $5 32. Rxg2
    Qh1 $16) 32. Bxe3 $18 Rce8 $2 (32... Nxg2 $142 33. Rxg2 Qh1 $18) 33. Bh3 (33.
    Qxc6 Rxe3 34. Rxg7 Re1+ (34... Rxg7 35. Qh6+ Kg8 36. Bxd5+ Rf7 37. Rxe3 Qxf2+
    38. Kxf2 Ng6 39. Re8+ Nf8 40. Rxf8#) 35. Kxe1 Qxg1+ 36. Bf1 Rxg7 37. Qh6+ Kg8
    38. Rxg1 Rg6 39. Qxg6+ Nxg6 $18) 33... Bxh3+ 34. Nxh3 (34. Rxh3 Qg2+ 35. Ke2
    Rxe3+ 36. Kxe3 Qe4+ 37. Kd2 Qxd4+ 38. Rd3 Qxf4+ 39. Kd1 Qxf2 $14) 34... Qh1+
    35. Ng1 Qe4 36. Rb2 (36. Qf7 Qd3+ 37. Ke1 Qc3+ 38. Kd1 Qa1+ 39. Kc2 Qa2+ 40.
    Rb2 Qxc4+ 41. Kb1 Qd3+ 42. Ka2 $18) 36... Qd3+ 37. Re2 (37. Ke1 Qc3+ 38. Rd2
    Qc1+ 39. Rd1 Qc3+ 40. Kf1 Qxc4+ 41. Ne2 $18) 37... Rb8 $11 {
    The mate threat is Rb1} 38. f3 Rb1+ 39. Kf2 Qd1 {Threatening mate: Qf1} 40. Rg2
    Nxg2 (40... Qf1+ 41. Kg3 Nxg2 42. Rxg2 h4+ 43. Kh2 $14) 41. Kxg2 Qd3 42. Qe6 (
    42. Qe7 dxc4 43. g6 Rgb8 $18) 42... dxc4 43. Bf2 c3 $2 (43... Rf8 $142 $14) 44.
    Qg6 $18 {Do you see the mate threat?. The game is finished by a kings attack}
    Rxg1+ 45. Kxg1 Qxf3 46. Re3 {The mate threat is Rxf3} Qd1+ (46... Qg4+ $142 47.
    Rg3 Qd1+ 48. Kh2 Qe2 $18) 47. Re1 (47. Kh2 $5 Qg4 48. Rxc3 Qxf4+ 49. Kg1 Qg4+
    50. Rg3 Qe2 $18) 47... c2 (47... Qg4+ 48. Kh2 $16) 48. Qxc6 Kh7 (48... h4 $5
    $16) 49. Kh2 $18 Rb8 $4 (49... Qd2 $142 50. Kg2 Qd1 $18) 50. Re7 Kh8 51. g6 (
    51. g6 Rf8 52. Re8 Qh1+ 53. Kxh1 c1=Q+ 54. Kh2 Qxa3 55. Qc8 Kg8 56. Qxf5 Qh3+
    57. Kxh3 Rxe8 58. Qf7+ Kh8 59. Qxe8#) 1-0
    
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Da Riva Alonso, Jose Eduardo"]
    [Result "*"]
    [PlyCount "131"]
    [EventDate "1989.??.??"]
    
    1. b4 e5 $15 2. Bb2 f6 3. a3 d5 4. e3 Be6 5. d4 e4 6. Nd2 Bd6 7. c4 c6 8. cxd5
    cxd5 9. Bb5+ (9. Nb3 b6 $11) 9... Nc6 10. Rc1 Nge7 11. Qb3 (11. Nb3 a6 12. Nc5
    Bxc5 (12... axb5 $143 13. Nxe6 Qd7 14. Nxg7+ Kf7 15. Nh5 $16) 13. Bxc6+ bxc6
    14. Rxc5 a5 $11) 11... Kf7 12. f4 (12. f3 a6 13. Be2 b5 $11) 12... Rc8 (12...
    a5 13. bxa5 Qxa5 14. Rc3 $15) 13. Ne2 (13. Be2 a6 $15) 13... a6 (13... Qb6 14.
    Nc3 $15) 14. Bxc6 bxc6 15. Qa4 Qb6 16. Nb3 Nf5 17. Kf2 Rhd8 (17... Nh6 18. h3
    $11) 18. Nc5 $11 {The isolani on a6 becomes a target} Bd7 (18... Bxc5 19. Rxc5
    Nd6 20. Ng3 $11) 19. Rc2 (19. Nxa6 $2 Ra8 $19) 19... Be8 (19... Bxc5 20. Rxc5
    Nd6 21. Qc2 $11) 20. Nc1 (20. Rhc1 Rb8 $11) 20... Ra8 21. N1b3 Qb5 22. Rhc1 Be7
    (22... Ra7 23. Qa5 Bc7 24. Qxb5 axb5 25. Rc3 $11) 23. Qa5 Nd6 (23... Kg8 24.
    Rc3 $11) 24. a4 Qb8 (24... Qxa5 25. Nxa5 (25. bxa5 $143 Nc4 $17) 25... Rdb8 26.
    Bc3 $11) 25. Nxa6 Nb7 (25... Qc8 $5 26. Nbc5 Rd7 $11) 26. Qb6 $14 {
    Increases the pressure on the backward pawn} Qa7 27. Qxa7 Rxa7 28. Nac5 (28.
    Rxc6 $5 Nd6 29. Nd2 $16) 28... Nxc5 $11 29. Nxc5 (29. Rxc5 $143 Rxa4 30. R5c3
    Rda8 $17) 29... Bxc5 30. Rxc5 (30. bxc5 Rxa4 31. Rb1 Ra2 $15) 30... Rxa4 $15
    31. Bc3 Ra2+ (31... Rda8 32. Ra5 $15) 32. Kf1 (32. Kg3 Ke6 $11) 32... Rda8 $15
    33. Ra5 R8xa5 (33... Bd7 $5 $15) 34. bxa5 $14 Ra3 (34... Bd7 35. Ra1 Rxa1+ 36.
    Bxa1 $14) 35. Ke2 (35. Rc2 g5 $14) 35... Ra2+ $11 36. Bd2 f5 (36... Bd7 37. h3
    $11) 37. Rb1 (37. Kd1 Ke6 $14) 37... Ke6 $11 38. Kd1 h6 (38... Bh5+ 39. Kc1 $11
    ) 39. h4 (39. Rb7 Bh5+ 40. Kc1 g6 $11) 39... Bh5+ 40. Kc1 Be2 41. Rb7 g6 42.
    Rh7 h5 43. Rg7 Kf6 44. Rc7 Bb5 45. g3 Ke6 46. Bb4 Ra4 47. Bc3 Ra2 48. Kb1 Ra4 (
    48... Rg2 49. a6 Bd3+ 50. Ka1 Rg1+ 51. Ka2 Bxa6 52. Rxc6+ Kf7 53. Rxa6 Rxg3 54.
    Ra7+ Kg8 55. Ba5 $16) 49. Kb2 $14 Kf6 50. Kb3 Ke6 51. Ra7 Kf6 52. Bb2 (52. Rb7
    Ke6 $14) 52... Rc4 $11 53. Ba3 (53. Ra8 Ba4+ 54. Ka2 Bb5 $11) 53... Ba4+ 54.
    Kb2 (54. Ka2 Rc3 55. a6 Rxe3 $18) 54... Rc2+ 55. Kb1 Rc3 (55... Re2 56. a6 Rxe3
    57. Be7+ Ke6 58. Rb7 $14) 56. Be7+ Ke6 57. Bd8 (57. a6 $5 Rxe3 58. Rb7 $14)
    57... Rxe3 $17 58. a6 Rb3+ (58... Re1+ 59. Kb2 Re2+ 60. Ka3 Bb5 $11) 59. Ka2
    $11 Rb8 60. Re7+ Kd6 61. Re8 (61. Bc7+ $5 Kxe7 62. Bxb8 $11) 61... Kd7 $15 62.
    a7 Ra8 63. Rh8 e3 (63... Rxa7 $142 $5 64. Rh7+ Kxd8 65. Rxa7 e3 66. Ra8+ Ke7
    67. Ra7+ Kf6 $17) 64. Rh7+ $11 Ke6 65. Bb6 (65. Re7+ $142 $5 Kd6 66. Rxe3 Rxa7
    67. Bb6 $11) 65... Kf6 (65... e2 66. Bc5 Re8 67. Bb4 $15) 66. Bc5 $15 (66. Bc5
    e2 67. Re7 Rxa7 68. Rxe2 $15) *
    
    [Event "corr ICCF WT-M-663"]
    [Site "?"]
    [Date "1996.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Jendrian"]
    [Result "1/2-1/2"]
    [PlyCount "120"]
    [EventDate "1996.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. a3 d5 4. e3 Be6 5. d4 e4 6. Nd2 Bd6 7. c4 c6 8. Be2 (8.
    cxd5 Bxd5 9. Qc2 f5 $11) 8... f5 (8... Ne7 9. c5 Bc7 10. b5 $11) 9. Nh3 Nf6 10.
    Ng5 (10. c5 Bc7 $11) 10... Qe7 11. Nxe6 Qxe6 12. cxd5 Nxd5 (12... Qxd5 $4 13.
    Bc4 Bxb4 14. Bxd5 (14. axb4 $6 Qd7 $18) 14... Bxd2+ 15. Qxd2 Nxd5 16. Qc2 $18)
    13. g3 (13. Nc4 $5 $11) 13... O-O $15 14. Bc4 Nd7 15. Rc1 N7b6 16. Bb3 (16. Be2
    a5 17. b5 cxb5 18. Bxb5 Qe7 $15) 16... Kh8 (16... a5 17. Bc3 $17) 17. O-O (17.
    Qe2 Rad8 $15) 17... Qg6 (17... a5 18. b5 cxb5 19. Qe2 $19) 18. Kh1 (18. Nc4 $5
    $11) 18... a5 $17 {Black fights for the Initiative} 19. Bxd5 Nxd5 20. bxa5 Rxa5
    21. Nc4 Raa8 22. Qb3 b5 23. Nd2 (23. Nxd6 Qxd6 24. Rc5 Rfe8 $15) 23... Ra6 $17
    24. Rc2 Rfa8 25. Nb1 (25. Rfc1 Qe8 $17) 25... b4 26. axb4 Nxb4 {
    Opening the b-file gets Black a lot of play} 27. Rd2 Rb8 (27... Nd3 28. f3 $17)
    28. Qc4 Rab6 29. Ba3 Nd3 30. Bxd6 Qxd6 31. Nc3 Rb4 (31... Rb3 32. Ra2 Qb4 33.
    Qxb4 Nxb4 34. Rc1 Nxa2 35. Nxa2 $19) 32. Qf7 Rf8 33. Qa2 c5 34. dxc5 Qxc5 35.
    Ne2 (35. Nd5 Rb5 36. Nf4 Nxf4 37. exf4 Qc6 $15) 35... Rfb8 36. Nd4 Qf8 (36...
    f4 37. gxf4 Nxf4 38. Nc2 $17) 37. Kg1 (37. f3 Rb2 38. Rxb2 Rxb2 $11) 37... g6
    38. Ra1 (38. Qa1 Ra8 39. Qc3 Kg8 $11) 38... Qg8 39. Qxg8+ (39. f3 Qxa2 40.
    Raxa2 Kg7 $15) 39... Kxg8 40. Kg2 Rb2 41. Ra2 Rxd2 42. Rxd2 Kf7 43. h3 Kf6 44.
    g4 f4 45. exf4 Nxf4+ 46. Kg3 g5 47. Ra2 (47. Nf5 Rb3+ 48. Ne3 Rd3 $17) 47...
    Rb1 48. Kh2 Nd3 (48... Ke5 49. Nf5 $17) 49. Re2 $15 Ke5 (49... Re1 50. Rxe1
    Nxe1 51. Nf5 $17) 50. Nf3+ $17 Kf4 51. Nd2 {Threatening mate: Rxe4} Rb4 52. Kg2
    Ne5 (52... Rd4 53. Nb3 Ra4 54. Nd2 $17) 53. Re3 Rd4 54. Nf1 Nf3 55. Ng3 Nh4+
    56. Kf1 Ra4 57. Re1 (57. Ne2+ Ke5 58. Ng3 Ng6 $17) 57... Nf3 58. Rc1 Ra2 59.
    Ne2+ (59. Kg2 Nh4+ 60. Kf1 Kf3 61. Rc3+ Kf4 $11) 59... Ke5 60. Nc3 Rd2 1/2-1/2
    
    [Event "corr WT-M-663"]
    [Site "?"]
    [Date "1995.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Andersson, A."]
    [Result "1/2-1/2"]
    [PlyCount "89"]
    [EventDate "1995.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. a3 d5 4. e3 Be6 5. d4 Nd7 6. Nd2 Bd6 7. c4 $11 c6 8. Bd3
    (8. cxd5 Bxd5 9. e4 Be6 $11) 8... e4 $15 9. Bc2 Ne7 10. Bb3 Bf7 (10... Bc7 11.
    Qh5+ Bf7 12. Qg4 $15) 11. f3 (11. Ne2 Nb6 $11) 11... f5 12. Nh3 Ng6 (12... Qc7
    13. Ng5 Bxh2 14. Nxf7 Qg3+ 15. Kf1 Kxf7 16. fxe4 $14) 13. O-O Qe7 (13... Qc7
    14. f4 $11) 14. Qe2 exf3 15. Rxf3 O-O (15... Nh4 16. Rf2 $11) 16. cxd5 (16.
    Rxf5 Rae8 $14) 16... Bxd5 $11 17. Bxd5+ cxd5 18. Raf1 Rae8 (18... Nh4 19. R3f2
    $11) 19. Rxf5 Rxf5 20. Rxf5 Nf6 21. Rf3 (21. Nf1 Qd7 22. Qd3 Nh4 $11) 21... Nh4
    22. Rf1 Qxe3+ 23. Qxe3 Rxe3 24. Bc1 Re2 (24... Rd3 $5 $17) 25. g3 $15 Ng6 26.
    Nf3 h6 (26... Ne4 27. Re1 Rc2 28. Nf4 Nxf4 29. Bxf4 $15) 27. Rf2 Rxf2 (27...
    Re8 28. Rc2 $15) 28. Nxf2 (28. Kxf2 Ne4+ 29. Ke3 b5 $11) 28... b6 (28... Kf7
    29. Nd3 $11) 29. Kf1 Kf7 (29... a5 30. b5 $11) 30. Ke2 (30. b5 Ke6 $11) 30...
    Ke6 31. b5 Ne7 32. Ne1 (32. Kd3 g5 $11) 32... Ne8 33. Ned3 Nc7 (33... g5 34. a4
    $11) 34. a4 g5 (34... a6 35. Nf4+ Kd7 36. bxa6 Nxa6 37. Ng4 $11) 35. Bd2 (35.
    Ng4 Nf5 36. Be3 a6 37. bxa6 Nxa6 $11) 35... a6 36. bxa6 Nxa6 37. Kf3 (37. Be3
    Nc7 $15) 37... Ng8 (37... Nf5 38. Be3 $11) 38. h3 (38. h4 Be7 $11) 38... Nb8
    39. g4 (39. Ng4 Nc6 40. Be3 h5 $11) 39... Nc6 40. Bc3 (40. Ke3 Nf6 $11) 40...
    Nge7 41. Nd1 Ng6 42. Ne3 Nce7 43. Be1 Nc6 44. Nf5 (44. Nc2 $5 $11) 44... Nge7
    $15 45. Nxh6 1/2-1/2
    
    [Event "corr SOK-92-79"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Roggensack_Hanspach, Peter"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "47"]
    [EventDate "1992.??.??"]
    
    1. b4 e5 $15 2. Bb2 f6 3. a3 d5 4. e3 Be6 5. Nf3 Nd7 6. d4 e4 7. Nfd2 Nb6 (7...
    a5 8. b5 $15) 8. c4 $11 Nxc4 (8... f5 9. c5 Nd7 10. Be2 $11) 9. Nxc4 dxc4 10.
    Qh5+ Ke7 11. Bxc4 Qe8 (11... Bxc4 12. Qc5+ {A double attack}) 12. Qe2 (12.
    Qxe8+ Rxe8 13. d5 Bf5 $16) 12... Qg6 13. O-O (13. Bxe6 Qxg2 14. Rf1 Kxe6 15.
    Qc4+ Kd6 16. Qc5+ Kd7 17. Qb5+ Kd6 18. Qxb7 Re8 $16) 13... Bg4 14. Qc2 Bf3 {
    Threatening mate: Qxg2} 15. g3 Qg4 (15... Kd8 16. Nd2 $16) 16. Rc1 (16. Nd2 Rd8
    $16) 16... f5 (16... a5 $5 $16) 17. Nd2 c6 18. d5 Rc8 19. Nxf3 (19. Qa4 cxd5
    20. Bxd5 Rxc1+ 21. Rxc1 Nf6 22. Rc7+ Kd6 23. Rc6+ bxc6 24. Qxc6+ Ke7 25. Bxf6+
    gxf6 26. Qc7+ Ke8 27. Bc6#) 19... exf3 $2 (19... cxd5 20. Ne5 Rxc4 21. Nxc4
    dxc4 22. Qxc4 Nf6 $18) 20. Bd3 $18 Qh3 {Threatening mate... how?} 21. Bf1 Qh5
    22. Qc5+ Kf7 (22... Ke8 23. Qxa7 Qf7 $18) 23. Qxa7 Bd6 24. Qxb7+ (24. Qxb7+ Ne7
    25. dxc6 $18) 1-0
    
    [Event "corr 3GMM-11"]
    [Site "?"]
    [Date "1995.??.??"]
    [Round "?"]
    [White "Law, David"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "44"]
    [EventDate "1995.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. a3 d5 4. e3 Be6 5. Nf3 Bd6 6. d4 e4 7. Nfd2 Ne7 8. c4 c6
    9. Nc3 Nd7 10. Qb3 f5 11. Be2 Nf6 12. cxd5 (12. b5 Qb8 $11) 12... Nexd5 13.
    Nxd5 Nxd5 14. Qc2 (14. Nc4 Bc7 $15) 14... Qh4 (14... Qg5 15. Bf1 $15) 15. Nc4
    Bc7 (15... Bxh2 $143 16. g3 Qh3 17. Nd6+ Ke7 18. Bf1 $18) 16. O-O-O (16. h3 $5
    $15) 16... O-O $17 17. g3 Qh6 (17... Qh3 18. Bf1 Qh5 19. Be2 $17) 18. Rde1 (18.
    Kd2 Rad8 $17) 18... a5 19. bxa5 Bxa5 20. Nxa5 Rxa5 21. Qd2 Rfa8 22. Kb1 (22. h4
    c5 $19 (22... Rxa3 $6 23. Bxa3 Rxa3 24. Kb2 $15)) 22... b5 (22... b5 23. Rc1 b4
    24. axb4 Ra4 $17) (22... Qh3 23. Bf1 Qh5 24. Kc1 $19) 0-1
    
    [Event "corr SOK-89-43"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Zimmer, Georg"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "60"]
    [EventDate "1989.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. b5 d5 4. e3 Bb4 5. c4 Be6 6. Nf3 (6. cxd5 $5 Bxd5 7. Nc3
    $15) 6... dxc4 $17 7. Be2 c6 8. bxc6 (8. a3 Bd6 $17) 8... Nxc6 9. O-O b5 10.
    Nc3 a6 11. a4 Rb8 12. axb5 axb5 13. Ra6 (13. d4 Bxc3 14. Bxc3 b4 $17) 13...
    Nge7 14. Qa1 (14. d3 Bxc3 15. Bxc3 b4 $19) 14... Ba5 15. Rd1 $2 (15. Rb1 $142
    $5 $19) 15... Bc8 16. Rxa5 (16. Rxc6 Nxc6 17. d3 Qb6 $19) 16... Nxa5 (16...
    Qxa5 17. Qxa5 Nxa5 18. Ra1 $19) 17. d3 (17. d4 Nb3 18. Qb1 exd4 19. Nxd4 Nxd4
    20. Rxd4 Qa5 $19) 17... Qc7 18. Nxb5 $2 (18. d4 $19) 18... Rxb5 19. dxc4 (19.
    d4 exd4 20. Nxd4 Rc5 $19) 19... Rb7 (19... Nxc4 $142 $5 20. Qa4 Bd7 21. Bxe5
    Rxe5 22. Qxc4 Qxc4 23. Bxc4 $19) 20. Qa4+ Kf7 21. Bc3 Nb3 22. Rb1 (22. e4 Nc5
    23. Qc2 Rd8 $19) 22... Bd7 23. Qxb3 (23. Qa6 Ra7 24. Nxe5+ fxe5 25. Bxe5 Rxa6
    26. Bxc7 Nd2 $19) 23... Rxb3 24. Rxb3 Rb8 25. Nd2 (25. Ba5 Qa7 (25... Rxb3 $6
    26. Bxc7 Rb1+ 27. Bf1 $17) (25... Qxa5 $143 26. Rxb8 Qa1+ 27. Bf1 $19) 26. Rxb8
    Qxb8 $19) 25... Be6 (25... Rxb3 26. Nxb3 Nd5 27. Ba5 $19) 26. Rxb8 Qxb8 27. h4
    Nf5 28. g3 Qc7 29. f4 (29. Bd3 Nd6 30. h5 Kg8 $19) 29... Nxg3 30. Kf2 (30. Bd3
    Qd6 31. f5 Qxd3 32. fxe6+ Kxe6 $19) 30... Nxe2 (30... Nxe2 31. Kxe2 Bxc4+ 32.
    Kd1 Bd3 $19) 0-1
    
    [Event "corr SOK-89-36"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Rossbach, Werner"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "66"]
    [EventDate "1989.??.??"]
    
    1. b4 e5 $15 2. Bb2 f6 3. b5 d5 4. e3 Bb4 5. Nc3 c6 (5... Bf5 6. a3 Ba5 7. Nf3
    $11) 6. d4 (6. a3 Bc5 $11) 6... exd4 (6... Qa5 7. Qd2 $15) 7. exd4 (7. Qxd4 c5
    8. Qh4 Ne7 $11) 7... Qe7+ $15 8. Qe2 Bf5 9. O-O-O Qxe2 10. Bxe2 Ne7 11. Nf3 a6
    12. bxa6 (12. b6 Nd7 13. Na4 O-O-O $15) 12... Nxa6 $17 13. Bd3 Bg4 14. h3 Bxf3
    15. gxf3 Nc7 16. Kb1 Kf7 17. Rdg1 Ne6 18. Ne2 g6 19. h4 Bd6 20. h5 g5 (20... b5
    21. Re1 $17) 21. Re1 $15 Ra4 22. Rhg1 h6 (22... Rha8 23. Nc3 Rb4 24. Bxh7 Nxd4
    25. Bd3 $15) 23. Bg6+ Nxg6 24. hxg6+ Ke7 25. Rh1 (25. f4 gxf4 26. Nc1 h5 $17)
    25... Kd7 26. Rh3 (26. Rh5 Ng7 27. Rh3 h5 $17) 26... h5 $17 27. Ng3 $2 (27. Rg1
    Rg8 $17) 27... Ng7 (27... h4 28. Rg1 $19) 28. f4 (28. Ne2 Rh6 29. f4 Rxg6 $19)
    28... Bxf4 $19 29. Ne2 Bd6 30. Rf3 f5 31. Nc3 Raa8 32. Bc1 (32. Rg1 g4 33. Re3
    Rh6 $19) 32... f4 33. Ne2 Rh6 (33... Rh6 34. Rb3 b5 $19 (34... Rxg6 $6 35.
    Rxb7+ Kc8 36. Rf7 $19)) 0-1
    
    [Event "corr DDR"]
    [Site "?"]
    [Date "1973.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Dietze, Otto"]
    [Result "1-0"]
    [PlyCount "81"]
    [EventDate "1973.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. b5 d5 $15 4. e3 Be6 5. d4 e4 6. Nd2 c6 7. a4 Bd6 8. c4
    Ne7 9. Qb3 O-O (9... dxc4 $142 $5 10. Bxc4 Bxc4 11. Nxc4 Nd5 $11) 10. c5 $14
    Bc7 11. Nxe4 Ba5+ (11... dxe4 {Exploits the pin} 12. Qxe6+) 12. Bc3 $16 Bxc3+
    13. Nxc3 Qa5 14. Bd3 cxb5 (14... b6 15. Rb1 bxc5 16. dxc5 $16) 15. Bxb5 a6 (
    15... b6 16. cxb6 Qxb6 17. Rb1 $16) 16. Bd3 $18 Nbc6 (16... Nec6 17. Rb1 Rf7
    18. Nge2 $18) 17. Nge2 (17. Rb1 Ra7 $18) 17... Rab8 (17... Nb4 $5 18. Nf4 Bf7
    $18) 18. Rb1 $18 Bf7 (18... Qc7 19. O-O $18) 19. O-O Qd8 20. Rb2 (20. Qc2 Bg6
    $18) 20... Qd7 (20... a5 21. Rfb1 $18) 21. Rfb1 Kh8 (21... Na5 22. Qb6 Bg6 23.
    Bxg6 $18) 22. Qc2 (22. Nf4 Rfe8 $18) 22... a5 23. Na2 (23. Nf4 Nb4 24. Bb5 Nxc2
    25. Bxd7 Na3 $18) 23... Ng6 (23... Bg6 24. Nf4 Bxd3 25. Qxd3 $18) 24. Rb6 Nh4
    25. Qb3 (25. Bxh7 $6 g6 $16) 25... Qg4 (25... Bg6 26. Bxg6 Nxg6 27. Nac3 $18)
    26. Ng3 Be6 (26... Rfc8 27. h3 Qd7 28. Rxb7 Rxb7 29. Qxb7 $18) 27. Rxb7 Nb4 (
    27... Ng6 28. Rb6 $18) 28. Rxb8 (28. Nxb4 Rxb7 29. h3 Qg5 $17) 28... Rxb8 29.
    Nxb4 Rxb4 (29... axb4 30. Rc1 $18) 30. Qc2 g6 (30... f5 31. Rxb4 axb4 32. h3
    $18) 31. Rxb4 axb4 32. f3 (32. h3 Qg5 $18) 32... Qg5 33. f4 Qh6 34. Qb3 g5 (
    34... Qf8 35. Qxb4 Qe8 36. e4 $18) 35. f5 Bf7 36. Qxb4 g4 (36... Qf8 37. a5 $18
    ) 37. Qb8+ Kg7 38. Qf4 Qxf4 39. exf4 Be8 40. Bb5 (40. a5 $5 Kf8 $18) 40... Bf7
    (40... Kf7 $18) 41. c6 (41. c6 Nxf5 42. Nxf5+ Kf8 43. c7 $18) 1-0
    
    [Event "corr ICCF H-1296"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Klebaner, JS."]
    [Result "1-0"]
    [PlyCount "71"]
    [EventDate "1992.??.??"]
    
    1. b4 e5 $15 2. Bb2 f6 3. b5 d5 4. e3 Be6 5. d4 e4 6. Nd2 Bd6 7. c4 c6 8. Qb3
    Ne7 (8... dxc4 $5 9. Bxc4 Bxc4 10. Nxc4 Ne7 $14) 9. c5 $16 Bc7 10. Nxe4 O-O (
    10... dxe4 {A pinning theme} 11. Qxe6 {A pinning theme}) 11. Ng3 Nd7 (11... b6
    12. Nf3 $14) 12. Bd3 $16 f5 (12... Ba5+ 13. Bc3 $16) 13. f4 (13. N1e2 $5 $16)
    13... Nf6 14. Nf3 Ng4 15. Ke2 Ng6 (15... Bd7 16. bxc6 bxc6 17. Ne5 $14) 16. h3
    $16 Nh6 17. a4 Nf7 (17... Re8 $5 $16) 18. Nxf5 Bxf4 $2 (18... Qf6 $142 19. Ng3
    Nh4 $18) 19. exf4 $18 Nxf4+ 20. Kd2 (20. Kd1 $5 Nxg2 21. Rg1 Qf6 $18) 20... Ng5
    21. Nd6 (21. Nxg5 $142 Qxg5 22. Ne3 $18) 21... Nxg2 $2 (21... Ne4+ 22. Bxe4
    dxe4 23. Qe3 Nxg2 24. Qe2 $16) 22. Nxg5 (22. Ne5 $5 Nxh3 23. Nxb7 Qg5+ 24. Kc3
    Ngf4 $18) 22... Qxg5+ 23. Kc3 (23. Kc2 Rf2+ 24. Kb1 Nf4 $18) 23... Rf2 (23...
    Nf4 24. Rag1 (24. Nxb7 Nxd3 25. Qc2 Rf3 $19) 24... Qe7 25. Rf1 $18) 24. Ne4 $1
    dxe4 {Exploits the pin. The mate threat is Qd2} 25. Qxe6+ Kh8 26. Bc1 (26. Qxe4
    $6 Qd2+ 27. Kb3 Qxb2+ 28. Kc4 cxb5+ 29. axb5 g6 $11) 26... e3 27. h4 Qh5 28.
    Ra2 $4 (28. Bxe3 $142 Rf3 29. Bg5 Rxd3+ 30. Kxd3 Qxg5 31. hxg5 Nf4+ 32. Kc4
    Nxe6 33. Rae1 Nxg5 34. Re7 $18) 28... Nf4 $16 29. Qc4 Nxd3 30. Kxd3 Qf3 (30...
    Qf5+ 31. Kc3 Re8 32. Re1 Rxa2 33. Qxa2 $16) 31. Re1 Re8 32. Rae2 (32. Rxe3 $4
    Qd1+ 33. Kc3 Qxc1+ 34. Kb4 Qxe3 35. Rxf2 Qxf2 36. bxc6 bxc6 $19) 32... h5 (
    32... Re7 33. Bxe3 (33. Rxe3 Qf5+ 34. Kc3 Rc2+ 35. Kb3 Rxc4 36. Kxc4 Qc2+ 37.
    Kb4 Qb1+ 38. Ka5 Rxe3 39. Rxe3 Kg8 40. bxc6 bxc6 $17) 33... Qe4+ 34. Kc3 Rxe2
    35. Rxe2 Qxh4 36. Bf4 Qh3+ 37. Kd2 $18) 33. Kc3 (33. Rxe3 Qf5+ 34. Kc3 Rxe3+
    35. Bxe3 Rc2+ 36. Kb3 Rxc4 37. Kxc4 Qe4 $19) 33... Re4 (33... Qg2 34. Qd3 $18 (
    34. Bxe3 $6 Rxe3+ 35. Rxe3 Rc2+ 36. Kb3 Rxc4 37. Re8+ Kh7 38. Kxc4 Qc2+ 39. Kb4
    Qb2+ 40. Kc4 Qc2+ 41. Kb4 Qb2+ 42. Kc4 Qc2+ $11)) 34. Qd3 (34. Rxe3 Rxe3+ 35.
    Rxe3 Qf8 $18) 34... Rxe2 35. Qxe2 Qf5 (35... Qxe2 36. Rxe2 Rxh4 37. Rxe3 $18 (
    37. Bxe3 $143 Kh7 $18)) 36. Bxe3 (36. Bxe3 Rxh4 37. Rf1 $18) (36. Qd3 g6 $18)
    1-0
    
    [Event "corr ICCF EU-H-GT-25"]
    [Site "?"]
    [Date "1966.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Wiik, Jon"]
    [Result "0-1"]
    [PlyCount "72"]
    [EventDate "1966.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. b5 d5 4. e3 Be6 5. d4 exd4 6. Qxd4 c5 7. Qh4 Nd7 8. Nd2 (
    8. Be2 Nh6 $11) 8... Qa5 9. c4 (9. Ngf3 Bd6 $11) 9... Qb4 (9... Rd8 10. Ngf3
    $15) 10. Rb1 $11 Bf5 (10... Qa5 11. a3 $11) 11. a3 Qa4 12. Rc1 Bd6 13. Qh5+ g6
    14. Qf3 (14. Qd1 Qxd1+ 15. Rxd1 dxc4 $14) 14... Ne7 (14... Ne5 15. Qxd5 O-O-O
    16. Ne4 $19) 15. cxd5 $14 Be5 16. Rc4 (16. Bxe5 $5 Nxe5 17. Qd1 Qxa3 18. e4 $14
    ) 16... Qa5 $11 17. Bc1 Bd6 (17... Nb6 18. Rxc5 Bd6 19. Rc4 Nxc4 20. Bxc4 $19)
    18. Rh4 (18. Bb2 Be5 19. d6 Bxb2 20. dxe7 $15) 18... Ne5 $15 19. Qd1 Qc3 (19...
    Nxd5 20. Ra4 Qc3 21. e4 $19) 20. e4 Bg4 21. Be2 $2 (21. Rxg4 Nxg4) 21... Nd3+
    $19 22. Kf1 Qd4 {Do you see the mate threat?} (22... Nxc1 23. Rxg4 Nxe2 24.
    Nxe2 $14 (24. Kxe2 $143 h5 25. Rh4 Qxa3 $11)) 23. Nh3 Bxh3 24. Bxd3 Qxd3+ 25.
    Kg1 Bd7 26. a4 c4 (26... a6 27. Bb2 O-O 28. b6 $19) 27. Qf1 (27. Qf3 Qc2 28.
    Ba3 Qxd2 $19) 27... g5 (27... Rc8 28. Qxd3 cxd3 29. Bb2 $19) 28. Nxc4 (28. Rh6
    Be5 29. h4 $19) 28... Qxf1+ $17 29. Kxf1 Bc5 (29... Bb4 30. Rh6 Rc8 31. Bxg5
    fxg5 32. d6 $19) 30. d6 $4 (30. Rh6 $142 a6 31. Na5 axb5 32. Nxb7 $17) 30...
    Ng8 (30... gxh4 $142 $5 31. dxe7 h3 32. g3 $19) 31. Rh5 Bg4 32. Rxg5 (32. d7+
    Kxd7 33. Rxg5 fxg5 34. Ne5+ Ke6 35. Nxg4 Rd8 $19) 32... fxg5 33. Bb2 Nf6 (33...
    Rc8 $5 34. Bxh8 Bb4 35. f3 Rxc4 36. Ke2 $19) 34. Bxf6 O-O (34... Rf8 35. e5 Rc8
    36. h3 $19) 35. e5 Rae8 (35... Rac8 36. f3 $17) 36. h4 $6 (36. f3 Be6 37. Nd2
    Bxd6 38. exd6 Rxf6 39. Ne4 Bc4+ 40. Kg1 Rxe4 41. d7 $19) 36... Rxf6 $1 (36...
    Rxf6 37. exf6 Be2+ 38. Kg1 Bxc4 $19) 0-1
    
    [Event "corr 3GMM-23"]
    [Site "?"]
    [Date "1996.??.??"]
    [Round "?"]
    [White "Wong, Ray"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "62"]
    [EventDate "1996.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. b5 d5 $15 4. e3 Be6 5. d4 exd4 6. Qxd4 Bd6 7. Nf3 c5 (
    7... a6 8. Nc3 $11) 8. Qd1 (8. Qd2 Ne7 $11) 8... a6 (8... Ne7 9. Be2 $11) 9.
    bxa6 bxa6 10. Be2 (10. Ng5 Qc8 $11) 10... Qb6 11. Bc3 Nc6 12. O-O Nge7 13. a4 (
    13. Na3 Qc7 $11) 13... O-O $15 14. Nbd2 Rfd8 (14... Ne5 15. a5 Qc6 16. Rb1 $15)
    15. Rb1 Qc7 {Black fights for the Initiative} 16. h3 Qd7 (16... Bd7 17. Re1 $15
    ) 17. Re1 Ne5 18. Nxe5 (18. a5 N7c6 $11) 18... fxe5 $15 19. Nf3 (19. a5 d4 20.
    exd4 cxd4 $15) 19... e4 $17 (19... Qxa4 $6 20. Bxe5 Bxe5 21. Nxe5 $11) 20. Ng5
    (20. Ne5 Bxe5 21. Bxe5 Ng6 $17) 20... Bf5 21. g4 (21. Bh5 g6 (21... Qxa4 $6 22.
    Bf7+ Kf8 23. g4 $17) 22. Be2 Qxa4 $17) 21... Bg6 $19 22. h4 (22. f4 exf3 (22...
    Qxa4 $6 23. Ne6 $15) 23. Bd3 Bg3 $17) 22... h6 (22... Qxa4 $143 23. Ne6 Rd7 24.
    h5 $17) 23. h5 Be8 (23... Qxa4 24. Ne6 Bf7 25. Nxd8 Rxd8 26. Ra1 $16) 24. Nh3
    Bxh5 $1 25. Nf4 (25. gxh5 {A pinning theme} Qxh3) 25... Bf7 26. Ba5 (26. Nh5
    $19) 26... Bc7 $4 {Black intends d4} (26... Rdb8 $142 $19) 27. Rb7 Rdc8 28. c4
    d4 29. exd4 cxd4 30. Nd5 $2 (30. Bf1 g5 31. Rxe4 $11) 30... Nxd5 31. cxd5 d3 (
    31... d3 32. Rxc7 Rxc7 33. Bxc7 Qxc7 $19) (31... Qxd5 32. Rxc7 Qxa5 33. Rxc8+
    Rxc8 34. Bf1 $19) 0-1
    
    [Event "corr DDR-ch H146"]
    [Site "?"]
    [Date "1972.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Heinrich, HJ."]
    [Result "0-1"]
    [PlyCount "70"]
    [EventDate "1972.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. b5 d5 4. e3 Be6 5. d4 Nd7 6. dxe5 fxe5 7. Nf3 Bd6 8. Nbd2
    Ngf6 $15 9. c4 c6 10. Be2 O-O 11. Ng5 Bf5 12. cxd5 cxd5 (12... Nxd5 13. Ngf3
    Be6 14. O-O $11) 13. e4 $11 Nxe4 (13... h6 14. exf5 hxg5 15. O-O $11) 14. Ndxe4
    $14 dxe4 15. Qd5+ Kh8 16. Nf7+ {The pressure on the isolated pawn grows} (16.
    Qxd6 $143 Qxg5 17. g4 Bxg4 $17) 16... Rxf7 17. Qxf7 Qa5+ 18. Kf1 (18. Kd1 Qa4+
    19. Qb3 Qxb3+ 20. axb3 Nc5 $11) 18... Rf8 $15 19. Qb3 Bc5 20. Qg3 $2 (20. Bc3
    $142 Qb6 21. Bb4 $17) 20... Bg4 $3 $19 21. f3 (21. Qxg4 {A deflection} Rxf2+ {
    Demolition of pawn structure}) 21... exf3 22. gxf3 Bxf3 $3 23. Bxf3 {
    Deflection from b5} (23. Qxf3 {A pinning theme} Rxf3+) 23... Qxb5+ {
    Theme: Double Attack} 24. Kg2 Qxb2+ 25. Kh3 Rf6 26. Bh5 Rh6 27. Qf3 (27. Qg4 g6
    28. Raf1 Rxh5+ 29. Kg3 e4 30. Qxe4 Bd6+ 31. Rf4 Nf6 $19) 27... Nf6 28. Rhd1 (
    28. Rad1 Rxh5+ 29. Kg3 Ne4+ 30. Kg4 Rg5+ 31. Kh4 $19) 28... Qb6 (28... Rxh5+
    $142 29. Qxh5 Qa3+ (29... Nxh5 $4 30. Rd8+ Bf8 31. Rxf8#) 30. Kg2 Nxh5 31. Rd8+
    Bf8 $19) 29. Rab1 Rxh5+ (29... Nxh5 $143 30. Rxb6 Nf6+ 31. Kg2 Bxb6 32. Qxb7
    Rg6+ 33. Kf1 $16) 30. Kg3 (30. Kg2 e4 31. Qxh5 Nxh5 32. Rxb6 Bxb6 $19) 30... e4
    (30... Rg5+ $142 31. Kh4 Qe6 32. Rd8+ Ng8 33. Rxg8+ Kxg8 $19) 31. Rxb6 exf3 (
    31... Bxb6 $6 32. Qf4 h6 33. Qb8+ Kh7 34. Qxb7 $11) 32. Rxb7 (32. Rd8+ Ng8 33.
    Re6 Bb6 $19) 32... f2 (32... h6 33. Kxf3 Rxh2 34. Ra1 $19) 33. Rb8+ Ng8 34. Kg4
    (34. Rb7 Rg5+ 35. Kf3 Rg1 $19) 34... Rxh2 35. Rbb1 (35. Kf3 Rh3+ 36. Kg2 Rh5
    $19) 35... h6 (35... h6 36. Kf3 Nf6 $19) 0-1
    
    [Event "corr ICCF WT-M-269"]
    [Site "?"]
    [Date "1990.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Eichler, Gottfried"]
    [Result "1-0"]
    [PlyCount "81"]
    [EventDate "1990.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. b5 d5 $15 4. e3 Be6 5. d4 Nd7 6. dxe5 fxe5 7. Nf3 Bd6 8.
    Nbd2 Ngf6 $15 9. c4 c6 10. Ng5 {White fights for the Initiative} Qe7 (10... Bf5
    11. e4 dxe4 12. Ndxe4 Bb4+ 13. Bc3 Bxc3+ 14. Nxc3 $15) 11. bxc6 $11 bxc6 12.
    Qa4 Nb6 13. Qc2 Bd7 {Black plans e4} 14. Rc1 Bb4 15. Ngf3 (15. c5 Nc8 $11)
    15... Ne4 $15 16. Bd3 Nxd2 17. Nxd2 e4 (17... Qg5 18. Rg1 $15) 18. Be2 O-O (
    18... Qg5 19. Rg1 $15) 19. c5 Nc8 20. O-O Qg5 (20... Rb8 $142 $15) 21. Nxe4 $1
    $16 Qg6 (21... dxe4 22. Qb3+ {Theme: Double Attack}) 22. Ng3 Qxc2 23. Rxc2 Ne7
    (23... Ba5 24. Rd1 $16) 24. Nh5 (24. Rb1 Ba5 $18) 24... Bf5 $16 25. Rcc1 Rf7
    26. g4 Be4 (26... Bg6 27. a3 Ba5 28. Nf4 $16) 27. Bd4 (27. Ng3 Bg6 $16) 27...
    h6 (27... Rb8 28. f3 Bg6 29. Nf4 $16) 28. f3 Bh7 29. Rfd1 (29. e4 Re8 $16)
    29... Ba5 (29... a5 30. Nf4 $16) 30. Kg2 Raf8 31. Nf4 g5 32. Nd3 (32. Ne6 Re8
    33. f4 Be4+ 34. Kg3 Bf5 35. Nxg5 hxg5 36. gxf5 Nxf5+ 37. Kf2 gxf4 38. exf4 Rh7
    $11) 32... Bxd3 (32... Ng6 33. Kg1 $16) 33. Rxd3 (33. Bxd3 $143 Rxf3 34. Rf1
    Rxf1 35. Rxf1 Rxf1 36. Kxf1 Bc7 $14) 33... Ng6 34. Ra3 Bd8 35. Ra6 Nh4+ 36. Kh1
    Nxf3 (36... Rc7 $5 37. e4 Re8 $16) 37. Bxf3 (37. Rxc6 $6 Nxd4 38. exd4 Rf2 $16)
    37... Rxf3 38. Rxc6 {The passed pawn on c5 quickly leads to threats} Rf2 (38...
    Bf6 $18) 39. Rxh6 Rxa2 (39... Be7 40. c6 Rf1+ 41. Rxf1 Rxf1+ 42. Kg2 Rc1 $18)
    40. Rh8+ Kf7 41. Rf1+ (41. Rf1+ Ke7 42. Rfxf8 $18) 1-0
    
    [Event "corr 3GMM-11"]
    [Site "?"]
    [Date "1997.??.??"]
    [Round "?"]
    [White "Kaminski, Roman"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "111"]
    [EventDate "1997.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. b5 d5 4. e3 Be6 5. d4 Nd7 6. Be2 Bb4+ 7. c3 Ba5 (7... Bd6
    8. Ba3 $15) 8. Bh5+ (8. Nf3 e4 9. Nfd2 Ne7 $11) 8... g6 9. Be2 Ne7 (9... c5 10.
    bxc6 bxc6 11. Nd2 $15) 10. Nf3 e4 (10... c6 11. O-O $11) 11. Nfd2 c6 12. c4 (
    12. Qb3 f5 $11) 12... dxc4 13. bxc6 bxc6 (13... Nxc6 14. O-O $11) 14. Qc2 Rb8
    15. O-O (15. Qxe4 $4 Bf5 (15... Rxb2 $6 16. Qxe6 c3 17. O-O cxd2 18. Na3 $19)
    16. Qf3 Rxb2 $19) 15... Qb6 16. Ba3 f5 17. Nxc4 Bxc4 18. Bxc4 Nd5 19. Rc1 Bb4 (
    19... N7f6 20. Qa4 Nd7 21. Bf1 $16) 20. Bxd5 cxd5 21. Bxb4 Qxb4 22. Qc6 Kd8 23.
    Nc3 Qc4 24. Nxd5 {The passed pawn on d4 will become decisive later} Qxc6 25.
    Rxc6 Nb6 26. Rd6+ Kc8 27. Rc1+ Kb7 28. Nxb6 (28. Rc7+ Ka8 29. h4 Rb7 $18) 28...
    axb6 $16 29. Rd7+ Ka6 30. h4 Rb7 31. Rd6 Rg8 32. Rf6 Rgg7 33. d5 (33. Rfc6 Kb5
    $16) 33... Rgf7 (33... Rgc7 34. Rxc7 Rxc7 35. h5 $16) 34. Rfc6 Rfd7 35. d6 Rb8
    36. Rb1 Ka5 37. Rb3 b5 38. Ra3+ Kb4 39. Raa6 Rbb7 40. Kh2 Ra7 41. a3+ Kb3 42.
    Rxa7 Rxa7 43. Rc7 Ra6 44. d7 Rd6 45. Ra7 (45. Kg3 Kxa3 46. Kf4 Rd5 $18) 45...
    Kc4 46. Kg3 Kc5 47. Kf4 Kb6 (47... Rd5 $5 $16) 48. Ke5 $18 {
    Threatening mate: Kxd6} Rd2 49. d8=Q+ Rxd8 50. Rxh7 Rd2 51. Rg7 Rxf2 52. Rxg6+
    {The passed pawn on h4 quickly leads to threats} Kc5 53. h5 Rf1 (53... f4 54.
    h6 (54. Kxe4 $6 fxe3 55. Kxe3 Ra2 $18) (54. exf4 $6 e3 55. Rg3 e2 56. Rc3+ Kb6
    $18) 54... Rf1 55. Kxe4 (55. exf4 $6 e3 56. Kf5 e2 $18) 55... fxe3 56. Kxe3 $18
    ) 54. h6 Rh1 (54... f4 55. Kxe4 (55. exf4 $6 e3 56. Kf5 e2 $18) 55... fxe3 56.
    Kxe3 $18) 55. Kxf5 Kd5 56. Kf6 (56. Kf6 Kc4 57. Kg7 $18) 1-0
    
    [Event "corr ICCF WT-M-742"]
    [Site "?"]
    [Date "2001.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Savionok, AA."]
    [Result "1/2-1/2"]
    [PlyCount "111"]
    [EventDate "2001.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. b5 d5 4. e3 Be6 5. d4 Bd6 6. dxe5 fxe5 7. Bxe5 Nf6 8. Bb2
    O-O 9. Nf3 Nbd7 (9... a6 10. Nbd2 $11) 10. Nbd2 (10. Be2 Qe8 $11) 10... Qe7 (
    10... Qe8 11. Be2 $11) 11. Bd3 (11. Be2 Bg4 $11) 11... Rae8 (11... Nc5 12. O-O
    $11) 12. O-O Nc5 (12... Bg4 13. Rb1 $11) 13. Nb3 $14 Nxd3 14. Qxd3 (14. cxd3 a6
    15. bxa6 bxa6 $11) 14... Bf7 (14... Ne4 15. Rfb1 $11) 15. Na5 (15. Rab1 Ne4 $14
    ) 15... Rb8 16. Bd4 (16. Rfd1 $14) 16... Bc5 (16... Kh8 $142 $5 $11) 17. Nb3
    $16 Bb6 18. Ne5 (18. Rfd1 Ne4 19. a4 c5 20. bxc6 bxc6 $14) 18... Be6 (18... Nd7
    19. Nxf7 Qxf7 20. a4 $16) 19. Bb2 (19. a4 Ne4 $16) 19... Nd7 (19... Qd6 20. Nf3
    Nd7 21. Rad1 $16) 20. Nxd7 (20. a4 Nxe5 21. Bxe5 Bf5 22. Qxd5+ Kh8 $16) 20...
    Qxd7 $14 21. a4 (21. Nd4 c5 22. bxc6 bxc6 $16) 21... Bf5 22. Qe2 c6 23. Bd4 (
    23. c4 Rbe8 $14) 23... Qd6 (23... Bxd4 24. Nxd4 Rbd8 25. c4 $14) 24. Bxb6 (24.
    a5 Bxd4 25. Nxd4 Qg6 $14) 24... axb6 25. Nd4 Bg6 26. Rfd1 (26. f4 Be4 $14)
    26... c5 27. Nb3 Qe5 (27... Rf5 28. c4 $14) 28. Qd2 $14 Rbd8 29. c3 (29. a5 $5
    $14) 29... Qg5 $15 30. f4 (30. a5 Be4 31. f4 Qg6 32. axb6 Bc2 33. Nxc5 Bxd1 34.
    Nxb7 Bb3 35. Nxd8 Rxd8 $16) 30... Qf5 (30... Qe7 31. Qf2 $15) 31. h3 (31. Nc1
    $5 $11) 31... Qe4 $17 32. Ra3 Rfe8 (32... Qe7 33. Raa1 $15) 33. Kf2 (33. a5 $5
    Qxe3+ 34. Qxe3 Rxe3 35. Rc1 $17) 33... Qe7 34. Ra2 (34. Raa1 Rd6 35. Kg1 Qxe3+
    36. Kh2 Qe7 $17) 34... Qh4+ (34... Rd6 35. Re1 $19) 35. Kg1 Bf7 36. Rb2 Ra8 (
    36... Rc8 37. a5 $15) 37. a5 $15 c4 (37... Qf6 38. Ra1 $15) 38. Nd4 $11 Rxa5 (
    38... bxa5 39. Nf3 Qe7 40. Ne5 $11) 39. Nf3 Qe7 40. Ne5 Be6 41. f5 Bxf5 42.
    Qxd5+ Be6 43. Qd4 Qc7 (43... Qc5 44. Qxc5 bxc5 45. b6 $11) 44. Rb4 (44. e4 Ra3
    $11) 44... Raa8 (44... Ra2 45. e4 $11) 45. Qf4 (45. Nxc4 Qg3 $14) 45... Bxh3 (
    45... Rf8 $5 46. Qe4 Rac8 $11) 46. Nxc4 (46. Qxc4+ Qxc4 47. Nxc4 Bg4 $16) 46...
    Qxf4 $14 47. exf4 Bg4 48. Rd2 Ra1+ 49. Kf2 Rc1 50. Ne5 (50. Nd6 Re7 $16) 50...
    Be6 $14 51. c4 (51. Rd3 Rc2+ 52. Kg3 h6 $14) 51... h5 (51... g5 52. fxg5 Rf8+
    53. Kg3 $14) 52. Kg3 (52. Rd6 Rc2+ 53. Kf3 Bg4+ 54. Nxg4 Rc3+ 55. Kf2 hxg4 $14)
    52... Rf1 (52... Bf5 53. Kh4 Rh1+ 54. Kg5 $14) 53. Nf3 (53. Rd4 Bc8 54. Ra4 g5
    $14) 53... Rc1 (53... Bg4 54. Rb3 $14) 54. Rd4 Rc8 (54... Rc2 55. Re4 $16) 55.
    Ne5 $16 Kh7 56. Rd6 1/2-1/2
    
    [Event "corr 3GMMsemi-08"]
    [Site "?"]
    [Date "1999.??.??"]
    [Round "?"]
    [White "Preuss, Guenter"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "55"]
    [EventDate "1999.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. b5 d5 $15 4. e3 Be6 5. Nc3 Bb4 6. Qh5+ g6 7. Qh4 Ba5 (
    7... Qe7 8. e4 d4 9. Nd1 $15) 8. Nf3 Nd7 9. Be2 Ne7 10. O-O O-O 11. Qa4 c5 12.
    bxc6 Nxc6 13. d4 (13. a3 Nb6 14. Qb5 Bf5 $11) 13... e4 (13... Rc8 14. Qb3 $15)
    14. Nd2 $11 a6 (14... Rc8 15. f3 Nce5 16. Qb3 $11) 15. Qb3 b5 (15... Qb6 $5 $11
    ) 16. Ndxe4 $16 Nb6 (16... dxe4 {Exploits the pin} 17. Qxe6+ {
    Theme: Double Attack}) 17. Nc5 Qe7 18. a4 Nc4 $2 (18... b4 $142 19. N3e4 Nd7
    $16) 19. axb5 $18 (19. Nxe6 $6 Qxe6 20. axb5 axb5 $16) 19... axb5 20. Qxb5 (20.
    Nxb5 $6 Nd2 21. Qa4 Nxf1 22. Bxf1 Rfc8 $14) (20. Nxe6 $6 Qxe6 21. Bf3 Bxc3 22.
    Bxc3 Rxa1 23. Rxa1 Rb8 $18) 20... Qd6 $6 (20... Na7 21. Qb3 Bxc3 22. Qxc3 Nb5
    $18) 21. Nxe6 Rfb8 22. Qxd5 Qxd5 23. Nxd5 Nxb2 24. Rfb1 Kf7 25. Nc5 Ne7 (25...
    Ra7 26. c4 $18) 26. Nxe7 Kxe7 27. Bf3 Ra7 28. Nd3 (28. Nd3 h6 29. Nxb2 $18) 1-0
    
    [Event "corr 3GMM-23"]
    [Site "?"]
    [Date "1995.??.??"]
    [Round "?"]
    [White "Ranby, Hans"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "77"]
    [EventDate "1995.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. e3 Bxb4 $17 4. c4 (4. a3 Be7 $17) 4... Nc6 5. Nc3 Nge7 6.
    Nf3 d6 (6... O-O 7. a3 Bxc3 8. Bxc3 $17) 7. Be2 Be6 8. O-O O-O (8... d5 9. Qb3
    $17) 9. d4 exd4 10. exd4 d5 11. c5 b6 12. a3 Ba5 13. h3 (13. Qc2 bxc5 14. dxc5
    d4 $15) 13... Rb8 14. Rb1 $2 (14. cxb6 $142 $5 Rxb6 15. Na4 $17) 14... bxc5 $19
    15. dxc5 (15. Ba1 $142 Rxb1 16. Nxb1 $19) 15... Ne5 $4 (15... Rxb2 $142 16.
    Rxb2 Bxc3 $19) 16. Nd4 $15 Bf7 17. Ba1 c6 18. Na2 (18. Rxb8 Qxb8 19. f4 Nd7 $17
    ) 18... Qc7 (18... Rxb1 19. Qxb1 Bg6 20. Qb3 $17) 19. Nb4 Bxb4 (19... Rfe8 20.
    Rb2 Bxb4 21. Rxb4 $15) 20. axb4 a5 21. Bc3 axb4 22. Bxb4 Rfe8 (22... Bg6 23.
    Rb2 Bf5 24. Re1 $15) 23. Qd2 N7g6 (23... Nc4 24. Bxc4 dxc4 25. Rfd1 $15) 24.
    Nf5 $11 Be6 25. Nd6 Rf8 $2 (25... Re7 $142 $5 $11) 26. f4 $16 Nf7 27. f5 Nxd6
    28. cxd6 (28. fxe6 $2 Ne4 29. Qe3 Qe5 $19) 28... Qa7+ (28... Qb6+ 29. Kh1 c5
    30. fxe6 Qxd6 31. Ba3 $16) 29. Kh1 $18 c5 (29... Bxf5 30. Rxf5 Rfd8 31. Rd1 $18
    ) 30. fxe6 (30. fxg6 $6 cxb4 31. gxh7+ Kxh7 32. Rxb4 Qd7 33. Rxb8 Rxb8 34. Qd3+
    f5 $11) 30... Rxb4 31. Rxb4 (31. Qxd5 Nf4 32. Rxf4 Rxb1+ 33. Kh2 Qb7 34. Qxc5
    Rc8 $18) 31... cxb4 32. Qxd5 Qa8 (32... Kh8 33. Bd3 Rd8 34. Bxg6 $18) 33. Qc4 (
    33. Qxa8 Rxa8 34. e7 Kf7 35. Bc4+ Ke8 36. Bb5+ Kf7 $18) 33... Rb8 (33... Ne5
    34. Qxb4 Rb8 $18) 34. e7+ Kh8 35. Qe6 (35. Bf3 $142 Qa5 36. Re1 $18) 35... Qc6
    36. Bf3 Qe8 37. Re1 (37. Bh5 $142 Rb7 38. Rc1 $18) 37... Ne5 (37... Nf8 38.
    exf8=B Qxf8 $18) 38. Rxe5 $1 fxe5 39. d7 (39. d7 Qxd7 40. Qxd7 $18) 1-0
    
    [Event "corr SOK-87-08"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Koerner"]
    [Result "1-0"]
    [PlyCount "53"]
    [EventDate "1988.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nc6 5. a3 Ba5 6. Bxg8 Rxg8 7. Qh5+ Kf8 8.
    Qxh7 d5 9. Ne2 dxe4 10. Qxe4 Be6 11. Nbc3 Qd7 12. O-O-O (12. f4 Ke8 $11) 12...
    Qe7 (12... Ke8 13. f4 $15) 13. g4 (13. Nd5 $5 Qc5 14. Ndf4 $11) 13... Rd8 14.
    Rhg1 Bb6 15. Rg2 Bc5 {Exerts pressure on the isolated pawn} 16. a4 Ba3 (16...
    Ke8 $5 $17) 17. f4 $15 Bxb2+ 18. Kxb2 Na5 (18... Rh8 $5 $11) 19. d3 $14 c6 20.
    fxe5 b5 (20... Ke8 $5 $16) 21. exf6 gxf6 22. Nf4 Bd5 23. Qxe7+ Kxe7 24. Nfxd5+
    cxd5 25. Re1+ Kf7 26. Nxb5 Rb8 27. Kc3 (27. Kc3 Nc6 28. Nd6+ Kf8 29. h4 $18)
    1-0
    
    [Event "corr (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Dyachok"]
    [Result "1-0"]
    [PlyCount "53"]
    
    1. b4 e5 2. Bb2 f6 3. e4 Bxb4 $15 4. Bc4 Ne7 5. f4 d5 6. exd5 exf4 7. Qf3 Bd6
    8. Ne2 Ng6 9. d4 O-O 10. Bc1 Bf5 11. Bb3 (11. Qb3 Nd7 $15) 11... Re8 $17 12.
    O-O Be4 13. Qh5 (13. Qf2 f3 14. gxf3 Bf5 $17) 13... Nd7 (13... f3 $142 14. Nec3
    fxg2 $19) 14. Nxf4 $15 Nxf4 15. Bxf4 f5 16. Bg5 Nf6 17. Qh4 Rf8 (17... h6 18.
    Bxf6 Qxf6 19. Qxf6 gxf6 20. Nc3 $11) 18. Nc3 h6 (18... Qe8 19. Rab1 $11) 19.
    Nxe4 $14 fxe4 20. Bxf6 Rxf6 21. Qxe4 Qf8 (21... Qe8 22. Qh4 Qe3+ 23. Kh1 $11)
    22. Qe6+ $1 Kh8 (22... Rxe6 {Deflection from f8} 23. Rxf8+ {A double attack})
    23. Rxf6 Qxf6 24. Qxf6 gxf6 25. Re1 Kg7 (25... Bb4 26. Re3 $16) 26. h3 (26. c4
    Bb4 27. Re3 Rd8 $16) 26... a5 (26... Kf7 27. Ba4 $16) 27. Ba4 (27. Ba4 f5 28.
    c4 $16) (27. c4 Bb4 28. Re3 f5 $16) 1-0
    
    [Event "corr (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Rudenko, Ludmila"]
    [Result "1-0"]
    [PlyCount "41"]
    
    1. b4 e5 2. Bb2 f6 3. e4 Bxb4 $15 4. Bc4 Ne7 5. f4 d5 6. exd5 exf4 7. Qf3 Bd6
    8. Ne2 $15 Ng6 9. d4 O-O 10. Bc1 Bf5 11. Bb3 (11. Qb3 f3 12. gxf3 Nd7 $17)
    11... Re8 $17 12. O-O Be4 13. Qh5 (13. Qf2 f3 14. gxf3 Bf5 $17) 13... Nd7 (
    13... f3 $142 14. Nec3 fxg2 $19) 14. Nxf4 $15 Nxf4 15. Bxf4 f5 16. Bg5 Nf6 17.
    Qh4 Rf8 (17... h6 18. Bxf6 Qxf6 19. Qxf6 gxf6 20. Nc3 $11) 18. Nc3 Qd7 (18...
    Qe8 $5 $14) 19. Bxf6 $16 Rxf6 20. Nxe4 Rh6 $4 (20... fxe4 $142 21. Rxf6 gxf6
    22. Qxe4 Re8 $16) 21. Qxh6 $1 $18 (21. Qxh6 Re8 22. Nf6+ gxf6 23. Qxf6 $18) 1-0
    
    [Event "corr SOK-99/133"]
    [Site "?"]
    [Date "1999.??.??"]
    [Round "?"]
    [White "Grafrath, Bernd"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "61"]
    [EventDate "1999.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. e4 Bxb4 $15 4. Bc4 Nh6 (4... d6 5.
    c3 Ba5 6. d4 $15) 5. c3 (5. Qh5+ Kf8 $11) 5... Ba5 6. Qh5+ Kf8 7. f4 (7. Bc1
    Qe8 8. Qxe8+ Kxe8 $15) 7... d6 8. f5 (8. fxe5 Bg4 9. Qh4 dxe5 $11) 8... Qe8 9.
    Qe2 Bd7 (9... g6 10. fxg6 hxg6 11. Nf3 $15) 10. Nf3 b5 (10... g6 11. fxg6 hxg6
    12. Qd3 $15) 11. Bb3 Na6 (11... g6 12. fxg6 hxg6 13. Na3 $15) 12. Ba3 (12. Bc1
    Nf7 $11) 12... Nc5 (12... Bb6 13. d3 $15) 13. O-O (13. Bxc5 dxc5 14. d3 Bb6 $15
    ) 13... Bb6 14. Kh1 Bc6 (14... Nxb3 15. axb3 g6 16. Bc1 $15) 15. Bc2 (15. Bxc5
    Bxc5 16. d4 Bb6 $11) 15... g6 (15... a6 16. d3 $15) 16. d4 exd4 {
    e4 draws heavy fire} 17. e5 (17. Nxd4 $142 Ke7 18. c4 bxc4 19. Nc3 $15) 17...
    d3 18. Bxd3 Nxd3 (18... dxe5 $6 19. Qf2 Qe7 20. fxg6 $17) 19. Qxd3 Nxf5 (19...
    fxe5 20. Bxd6+ cxd6 21. Qxd6+ Kg8 22. Nxe5 $19) 20. Nd4 (20. exf6 Qe3 21. Qd2
    Re8 $19) 20... Bxd4 (20... fxe5 $6 21. Nxf5 Qd7 22. Nh6+ Ke8 23. Nd2 $14) 21.
    cxd4 b4 $1 22. Rxf5 (22. Bxb4 Bb5) 22... gxf5 (22... bxa3 23. Rxf6+ Kg7 24. Qc4
    $16) 23. Bxb4 Be4 24. Qh3 (24. Qd2 Rg8 25. Qh6+ Ke7 26. exd6+ cxd6 27. Nc3
    Bxg2+ 28. Kg1 Be4+ 29. Kf1 $19) 24... Qb5 (24... Qa4 25. Nc3 Qxb4 26. Nxe4 Qxd4
    27. Qh6+ Ke8 28. Nxf6+ Kf7 29. e6+ Kxe6 30. Re1+ Kf7 31. Nxh7 Rxh7 32. Qxh7+
    Kf8 33. Qxf5+ Kg8 $16) 25. Nc3 Qxb4 26. Nxe4 Qxd4 {Threatening mate... how?}
    27. Qh6+ Ke8 28. Nxf6+ Kf7 29. e6+ Kxe6 {Decoy theme: e6} 30. Re1+ Kf7 31. Nxh7
    (31. Nxh7 Rxh7 32. Qxh7+ Kf8 33. Qxf5+ Kg8 34. Qe6+ Kh8 35. Qh6+ Kg8 36. Qg5+
    Kh8 37. Qc1 $16) 1-0
    
    [Event "corr SOK-91-74"]
    [Site "?"]
    [Date "1991.??.??"]
    [Round "?"]
    [White "Grehl, Siegfried"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "53"]
    [EventDate "1991.??.??"]
    
    1. b4 e5 $15 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nh6 5. c3 (5. Qh5+ Kf8 $11) 5... Bc5 (
    5... Bf8 $5 $15) 6. d4 exd4 $2 (6... Bf8 $142 $14) 7. Qh5+ $18 g6 8. Qxh6 (8.
    Qxc5 dxc3 9. Nxc3 d6 10. Qb5+ c6 $18) 8... dxc3 (8... Qe7 9. cxd4 Qxe4+ 10. Qe3
    Qxe3+ 11. fxe3 Bb4+ 12. Bc3 Bxc3+ 13. Nxc3 $18) 9. Nxc3 Qe7 (9... Bf8 10. Qf4
    Bd6 11. Qf3 $18) 10. Nge2 (10. Nd5 Qxe4+ 11. Qe3 Qxe3+ 12. fxe3 Kf8 $18) 10...
    c6 11. O-O b5 12. Bb3 d6 13. Nf4 Rf8 14. Rfe1 Nd7 $2 (14... Na6 15. Rac1 Nc7
    16. Nd3 $18) 15. Ne6 Ne5 16. Qxf8+ (16. Nxf8 Bxf2+ 17. Kh1 Bxe1 18. Nxh7 Bxc3
    19. Bxc3 b4 20. Bxe5 fxe5 $18) 16... Qxf8 17. Nxf8 Kxf8 18. Rad1 Ke7 (18... a5
    19. Kf1 $18) 19. h3 (19. Ne2 Bg4 20. Bd4 Bb4 $18) 19... a5 20. a3 (20. Kf1 a4
    21. Bc2 Nc4 $18) 20... Rb8 (20... a4 21. Bg8 $18) 21. Ne2 (21. Bc1 b4 22. Na4
    Be6 23. Bxe6 Kxe6 $18) 21... Ba6 (21... a4 22. Ba2 $18) 22. Nd4 a4 23. Ba2 b4
    24. axb4 Bxb4 25. Re3 c5 26. Nc2 Ba5 27. Bxe5 (27. Bxe5 dxe5 28. Ra3 $18) (27.
    Rb1 c4 $18) 1-0
    
    [Event "corr SOK-92-86"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Rohde, Friedhelm"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "95"]
    [EventDate "1992.??.??"]
    
    1. b4 e5 $15 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nh6 5. c3 (5. Qh5+ Kf8 $11) 5... Be7 (
    5... Bf8 6. d4 $15) 6. d4 d6 (6... Nf7 7. Nf3 $15) 7. Qh5+ $11 Kf8 8. Qe2 Nd7
    9. Nf3 Nb6 10. Bb3 a5 (10... exd4 11. Nxd4 d5 12. exd5 Nxd5 13. O-O $11) 11. a4
    (11. O-O a4 12. Bc2 Kf7 $15) 11... Bd7 (11... exd4 12. Nxd4 Qe8 13. O-O $11)
    12. O-O Qe8 {Increasing the pressure on the isolated pawn on a4} 13. Qc2 c5 14.
    dxe5 (14. Nbd2 Rc8 15. dxe5 c4 16. exf6 Bxf6 $11) 14... fxe5 (14... c4 15. exf6
    Bxf6 16. Qd1 $11) 15. Nbd2 Qg6 16. Kh1 Ke8 17. Nc4 Nc8 (17... Nxc4 18. Bxc4 Bg4
    19. Bb5+ Kf7 20. Bc4+ Kf6 21. Nd2 $11) 18. Ne3 $11 Rf8 19. Nd5 Bd8 20. Qd3 Rb8
    21. Rad1 Nf7 22. c4 Bg4 23. Rde1 Bxf3 (23... Ne7 $5 $15) 24. Qxf3 $11 Ne7 25.
    Qd3 (25. Qe2 Nc6 $11) 25... Ng5 26. f4 Nxd5 27. Qxd5 Rxf4 28. Rxf4 exf4 29. e5
    Qe6 30. Qxd6 (30. Qd1 f3 31. exd6 fxg2+ 32. Kxg2 Ne4 $18) 30... Qxd6 31. exd6+
    {The passed pawn on d6 will quickly become a dangerous weapon} Kf7 32. Be5 Ne6
    33. Bd1 Bg5 34. Bh5+ g6 35. Bf3 Nd4 (35... Bh4 36. Re4 $14) 36. Bd5+ Kf8 37. d7
    Rd8 38. Bd6+ Kg7 39. Bxc5 Nc2 40. Re5 Bf6 $2 (40... h6 $142 41. Re2 Ne3 $14)
    41. Re8 $18 {Do you see the mate threat?} Kh6 42. Be6 Nb4 (42... f3 43. gxf3
    Nb4 44. Bb6 $18) 43. Bf8+ (43. Bb6 $5 Nc6 $18) 43... Kg5 44. Bg7 $1 Bxg7 {
    Deflection from d8} 45. Rxd8 Nc6 46. Rb8 $1 Bf6 (46... Nxb8 {
    Theme: Deflection from d8} 47. d8=Q+ {Theme: Double Attack}) 47. Rxb7 Bd8 48.
    Bd5 (48. Bd5 Nd4 49. Rb8 $18) 1-0
    
    [Event "corr SOK-92-79"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Zylla, Johannes"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "71"]
    [EventDate "1992.??.??"]
    
    1. b4 e5 $15 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nh6 5. Qh5+ $11 Kf8 6. f4 (6. c3 Be7
    $11) 6... d6 7. f5 (7. c3 Bc5 $11) 7... c6 $15 8. Ne2 Qb6 (8... d5 9. Bd3 $17)
    9. Qf3 (9. Nbc3 d5 10. Bb3 dxe4 11. Nxe4 Bxf5 12. Nxf6 Qd8 $14) 9... Bc5 (9...
    Bxd2+ 10. Nxd2 Qxb2 11. Rb1 Qxc2 12. Nc3 Nxf5 13. exf5 Qxf5 14. Qxf5 Bxf5 15.
    Rxb7 $15) 10. Bb3 Nf7 11. Nbc3 Ng5 12. Qf1 Nd7 13. h4 Nf7 14. g4 a5 15. Rh3 $2
    (15. Na4 Qc7 $15) 15... Qa7 (15... a4 16. Bxf7 Qxb2 $11 (16... Kxf7 $6 17.
    O-O-O $17)) 16. a4 b6 17. Qg2 Ba6 18. O-O-O (18. g5 Re8 $15) 18... Ke7 (18...
    b5 $5 $17) 19. d4 $15 exd4 20. Nxd4 Bxd4 21. Rxd4 b5 (21... Nde5 22. g5 $15)
    22. axb5 cxb5 23. Bxf7 (23. Nd5+ Ke8 $11) 23... Kxf7 $15 24. e5 (24. Rxd6 b4
    25. Nd5 Bc4 $15) 24... Nxe5 (24... Qxd4 25. e6+ Ke7 26. Nd5+ Qxd5 27. Qxd5 $16)
    25. Qd5+ Ke8 26. Nxb5 Bxb5 27. Qxb5+ Ke7 28. g5 (28. Qd5 Nf7 29. Re3+ Kf8 $14)
    28... Rab8 (28... Rhb8 29. gxf6+ gxf6 $11) 29. gxf6+ $15 gxf6 30. Qd5 {
    Exerts pressure on the isolated pawn} Qd7 31. Rg3 Rhf8 (31... Qxf5 32. Qxd6+
    Kf7 33. Qc7+ Ke8 34. Qxb8+ Kf7 35. Qc7+ Qd7 36. Rxd7+ Ke6 37. Qd6+ Kf5 38. Rf7
    Nxf7 39. Qxf6+ Ke4 40. Qf3#) 32. Ba3 {The pressure on the isolated pawn grows}
    Rb6 33. Re3 (33. Qxa5 Rc6 $11) 33... h5 (33... a4 34. Qa5 Rfb8 35. Rxe5+ fxe5
    36. Bxd6+ Qxd6 37. Rxd6 Kxd6 38. Qxa4 $14) 34. Rb3 (34. Rxe5+ fxe5 35. Qxe5+
    Kf7 36. Bxd6 Qe8 37. Qd5+ Kg7 38. Bxf8+ Qxf8 39. Qxa5 Rb7 $18) 34... Rc6 35.
    Rb7 $1 Qxb7 {Deflection from d6} 36. Bxd6+ {Demolition of pawn structure} (36.
    Bxd6+ Rxd6 37. Qxb7+ Rd7 38. Rxd7+ Nxd7 39. Qa6 $18) 1-0
    
    [Event "corr SOK-92-79"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Feilmayr, Erwin"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "41"]
    [EventDate "1992.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nh6 5. Qh5+ $11 Kf8 6. f4 (6. Nf3 Qe8 7.
    Qh4 Qg6 $11) 6... d6 (6... exf4 7. Ne2 $15) 7. h3 (7. fxe5 dxe5 (7... fxe5 8.
    Ne2 Qf6 9. Rf1 Bxd2+ 10. Nxd2 $18) 8. Nf3 Bg4 $15) 7... Nc6 (7... exf4 8. Qf3
    $17) 8. a3 $15 Ba5 (8... Bc5 9. Ne2 $15) 9. Ne2 $11 Bd7 (9... exf4 10. Nxf4 Qe7
    11. Bd5 $11) 10. Nbc3 Bxc3 11. Bxc3 Be8 12. Qf3 Ke7 (12... Bf7 13. Bxf7 Kxf7
    14. Qh5+ Ke7 15. Rb1 $11) 13. d4 (13. O-O Bf7 14. Bb5 Re8 $11) 13... exd4 14.
    Nxd4 Nxd4 15. Bxd4 c6 (15... Bf7 16. Qg3 Rg8 17. Bxf7 Nxf7 18. Rb1 $11) 16. O-O
    $14 Qa5 (16... Bf7 17. Bb3 $14) 17. Qg3 g6 $2 (17... Bg6 $142 $5 $14) 18. Qh4
    $18 Ng8 19. Bxg8 Rxg8 20. Bxf6+ Kf8 (20... Ke6 21. f5+ gxf5 22. exf5+ Kf7 23.
    Qxh7+ Kxf6 24. Qxg8 Qb6+ 25. Rf2 $18) 21. Be7+ (21. Be7+ Kg7 22. Qf6+ Kh6 23.
    Bf8+ Rxf8 24. Qxf8+ Kh5 25. Qg7 $18) 1-0
    
    [Event "corr SOK-88-25"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Hasler, Ulrich"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "80"]
    [EventDate "1988.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nh6 5. Qh5+ $11 Kf8 6. Qe2 (6. Nf3 Qe8 7.
    Qh4 d6 $11) 6... c6 7. a3 Bc5 8. Nc3 b5 9. Bb3 d6 10. Nf3 a5 11. O-O a4 12. Ba2
    Qb6 13. Nd1 Ba6 (13... f5 14. Nc3 $15) 14. d3 Ke7 15. c3 Qa7 16. Qd2 Nd7 17. d4
    Bb6 18. Ne3 Rhd8 19. Rfe1 Ba5 (19... Kf8 20. Be6 $15) 20. Rac1 Nb6 21. h3 Bc8
    22. Qe2 Bd7 23. Red1 Be8 24. g4 (24. c4 $5 $14) 24... Bg6 $15 25. Nf5+ Nxf5 26.
    exf5 Bf7 27. Bxf7 Kxf7 28. Ba1 Nc4 29. Qe1 (29. Qe4 $142 $19) 29... Nxa3 30.
    Nd2 (30. dxe5 fxe5 31. Ng5+ Kg8 $19) 30... Re8 31. dxe5 Rxe5 (31... fxe5 32.
    Bb2 Qc5 33. Ne4 $18) 32. Qf1 Rae8 (32... Qe7 $142 $5 33. c4 Re2 34. Re1 $19)
    33. Nf3 Nc4 (33... Rd5 34. Rxd5 cxd5 35. Re1 Rxe1 36. Qxe1 $19) 34. Nxe5+ fxe5
    (34... Nxe5 $6 35. Rxd6 Qc5 36. Re6 $15) (34... dxe5 $6 35. Rb1 $19) 35. Re1 e4
    36. Kh2 (36. Rcd1 $142 $19) 36... Nd2 37. Qg2 Nf3+ 38. Kh1 Nxe1 39. Rxe1 d5 40.
    Re2 Qc5 (40... Qc5 41. g5 Bxc3 $19) 0-1
    
    [Event "corr SOK-91-74"]
    [Site "?"]
    [Date "1991.??.??"]
    [Round "?"]
    [White "Leisebein, Peter"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "41"]
    [EventDate "1991.??.??"]
    
    1. b4 e5 $15 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nh6 5. Qh5+ $11 Kf8 6. Nc3 (6. a3 Bc5
    $11) 6... c6 7. Nge2 b5 8. Bb3 {White gets in control} Be7 (8... d6 9. h3 $15)
    9. O-O (9. f4 Qe8 10. Qf3 Nf7 $11) 9... d5 10. h3 (10. exd5 $143 Bg4 11. Qh4 b4
    $17) 10... b4 (10... d4 11. Nd1 $15) 11. Nxd5 $11 Bc5 (11... Qxd5 12. exd5) 12.
    d4 exd4 13. Nxf6 $1 Qe7 (13... Qxf6 14. Qxc5+) 14. Nd5 $1 Qd6 (14... cxd5 15.
    Bxd5) 15. Nc7 $1 $18 {The mate threat is Qe8} Bd7 (15... Qxc7 {A deflection}
    16. Qxc5+) 16. Nxa8 Be8 17. Qh4 Bf7 18. Rad1 Na6 (18... Qe7 19. Qxe7+ Kxe7 20.
    Nxd4 $18) 19. Nxd4 Bxb3 (19... Qe7 20. Ne6+ $1 Bxe6 21. Rd8+ Kf7 22. Qh5+ g6
    23. Bxe6+ Qxe6 24. Qf3+ (24. Qxh6 $6 Rxd8 25. Qxh7+ Ke8 $16) 24... Ke7 25. Rxh8
    $18) 20. Nxb3 Qe7 21. Rd8+ (21. Rd8+ Qxd8 22. Qxd8+ Kf7 23. Qxh8 $18) 1-0
    
    [Event "corr SOK-88-25"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Frenzel, Lothar"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "86"]
    [EventDate "1988.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nh6 5. Qh5+ $11 Kf8 6. Ne2 c6 7. c3 (7.
    Bc3 Bc5 $15) 7... Be7 (7... d5 8. cxb4 dxc4 9. h3 $17) 8. Ng3 d5 9. Bb3 (9. Be2
    $142 $5 $17) 9... Bg4 $19 10. Qh4 f5 (10... dxe4 $5 11. O-O Na6 12. Ba3 $19)
    11. Ba3 $17 fxe4 (11... dxe4 12. h3 c5 13. Bxc5 $16) 12. Bxe7+ (12. c4 Nd7 13.
    Bxe7+ Qxe7 14. Qxe7+ Kxe7 15. cxd5 Nc5 $15) 12... Qxe7 13. Qxe7+ Kxe7 14. O-O
    Nf5 15. Nxf5+ Bxf5 16. f4 exf4 17. Rxf4 Rf8 18. Na3 g5 19. Rf2 Nd7 20. Nc2 Bg4
    21. Raf1 Rxf2 22. Rxf2 Rf8 23. Ne3 Rxf2 24. Kxf2 Be6 25. Bd1 Nf6 26. g4 c5 27.
    a3 d4 28. cxd4 cxd4 29. Nf5+ Bxf5 30. gxf5 Kd6 31. Bb3 Ke5 32. Be6 h5 (32...
    Ng4+ $5 33. Kg2 $19) 33. h3 Kf4 34. Bc8 b6 35. a4 (35. Be6 g4 $19) 35... e3+
    36. dxe3+ dxe3+ 37. Ke2 Ne4 38. Bd7 (38. Ke1 Nd6 39. f6 Ke5 $19) 38... Ng3+ 39.
    Ke1 (39. Kd3 Nxf5 40. Bb5 g4 41. hxg4 hxg4 $19) 39... Nxf5 40. Ke2 Nd4+ 41. Ke1
    Kf3 42. Bb5 g4 (42... Nxb5 $142 43. Kf1 Nc3 44. a5 $19) 43. hxg4 hxg4 (43...
    hxg4 44. Kd1 Nxb5 $19) 0-1
    
    [Event "corr 3GMM-11"]
    [Site "?"]
    [Date "1995.??.??"]
    [Round "?"]
    [White "Svensson, Jan"]
    [Black "Diener, Rudolf"]
    [Result "1/2-1/2"]
    [PlyCount "110"]
    [EventDate "1995.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nh6 5. Qh5+ $11 Kf8 6. Ne2 d6 7. h3 (7. c3
    Ba5 $11) 7... Qe8 (7... c6 8. Nbc3 $15) 8. Qh4 (8. Qf3 b5 9. Bb3 Nf7 $11) 8...
    Be6 (8... b5 9. Bb3 $15) 9. Bb3 Nd7 10. f4 (10. O-O Kf7 $15) 10... Nc5 (10...
    Bxb3 11. axb3 Qg6 12. Ng3 $15) 11. f5 (11. fxe5 dxe5 (11... Nxb3 12. exf6 Rg8
    13. fxg7+ Rxg7 14. Qxh6 $18) 12. O-O Kg8 $15) 11... Bf7 12. Nbc3 c6 (12... Nxb3
    13. axb3 Kg8 14. O-O $15) 13. g4 (13. O-O Kg8 $15) 13... a5 (13... d5 14. exd5
    cxd5 15. Rg1 $17) 14. O-O-O (14. Rg1 Qe7 $17) 14... b5 (14... Bxb3 15. cxb3 a4
    16. bxa4 Bxc3 17. Nxc3 Nxa4 18. Ba3 $19) 15. g5 fxg5 16. Qxg5 Bxc3 17. Nxc3 b4
    (17... Nxb3+ $6 18. cxb3 Qe7 19. Qg3 $15) 18. f6 (18. Rhg1 bxc3 19. Qxg7+ Ke7
    20. f6+ Kd7 21. Bxc3 a4 $19 (21... Nxb3+ $6 22. cxb3 a4 23. Qxh6 $15)) 18...
    Bg6 $19 (18... Nxb3+ $6 19. axb3 Bg6 20. Na4 $11) 19. Na4 Nxe4 {
    Black creates threats along the open f-file} 20. fxg7+ Kxg7 21. Qg2 Rf8 22. h4
    (22. Rhf1 Qe7 $19) 22... Rf2 23. Qg1 Rf4 24. d4 (24. h5 Rg4 25. Qh2 Bf7 $17)
    24... Ng4 (24... Nf2 25. Re1 Nxh1 26. dxe5 $19) 25. dxe5 dxe5 (25... Nxe5 $143
    26. h5 $16) 26. Nc5 (26. Qb6 Qe7 $19) 26... Nxc5 27. Qxc5 a4 28. Bc4 Rf2 29.
    Rd2 Rxd2 30. Kxd2 a3 31. Ba1 Rb8 (31... Qd7+ 32. Kc1 Qf5 33. Bb3 $17) 32. Kc1 (
    32. Be2 Rd8+ 33. Kc1 Nf6 34. Qxb4 Nd5 35. Qxa3 Ra8 $11) 32... h5 (32... Qf8 33.
    Bxe5+ Nxe5 34. Qxe5+ Qf6 35. Qc7+ Kh6 36. Qxb8 Qb2+ 37. Kd1 Qxc2+ (37... Bxc2+
    38. Ke2 Be4+ 39. Ke3 Bxh1 40. Qf4+ Kg7 41. Qg5+ Kf8 42. Qd8+ Kg7 43. Qe7+ Kg6
    44. Qg5#) 38. Ke1 Qc1+ 39. Kf2 Qxh1 40. Qf8+ Kh5 41. Be2+ Qf3+ 42. Qxf3+ Kxh4
    43. Qg3#) 33. Re1 $15 {The pressure on the isolated pawn grows} Rb7 34. Bxe5+
    Nxe5 35. Rxe5 Qf8 36. Qd4 {Do you see the mate threat?} Kh7 37. Bd3 (37. Ba6
    Rg7 $15) 37... Qf3 38. Be2 (38. Qc5 Qf4+ 39. Kd1 Bxd3 40. Rxh5+ Kg7 41. cxd3
    Qf1+ 42. Kd2 Qg2+ 43. Kd1 Qh1+ (43... Qxa2 44. Qe5+ Kf7 45. Rh7+ Kg6 46. Qh5+
    Kf6 47. Qg5+ Ke6 48. Qg8+ Ke5 49. Rh5+ Kd6 50. Qxa2 Rg7 51. Qf2 Re7 52. Rh6+
    Kd7 53. Qa7+ Ke8 54. Rh8+ Kf7 55. Rh7+ Kf6 56. Qxe7+ Kf5 57. Qg5+ Ke6 58. Re7+
    Kd6 59. Qe5#) 44. Kc2 b3+ 45. axb3 Qg2+ 46. Kd1 Qf3+ 47. Ke1 Qh1+ (47... Rxb3
    $4 48. Qg5+ Kf8 49. Rh8+ Kf7 50. Rh7+ Ke6 51. Re7+ Kd6 52. Qe5#) (47... Qxd3 $4
    48. Qe5+ Kf7 49. Rf5+ Qxf5 50. Qxf5+ Kg7 51. Qg4+ Kf6 52. Qa4 $18) 48. Kd2 Qg2+
    (48... Rxb3 49. Qe7+ Kg6 50. Rg5+ Kh6 51. Qg7#) 49. Ke3 Qg1+ 50. Ke2 Qxc5 51.
    Rxc5 Ra7 $15) 38... Qh1+ 39. Kd2 (39. Bd1 Qf1 $15) 39... Qh2 $17 40. Kc1 (40.
    Ke1 c5 (40... Bxc2 41. Rxh5+ Kg6 42. Qg4+ Kf7 43. Bc4+ Ke7 44. Qg7+ Kd6 45.
    Rh6+ (45. Qxb7 $6 Qg3+ 46. Ke2 Qg4+ 47. Kd2 Qd1+ (47... Qxc4 $4 48. Rh6+ Ke5
    49. Qg7+ Kd5 50. Qg5+ Kd4 51. Rd6+ Qd5 52. Qe3+ Kc4+ 53. Rxd5 cxd5 54. Kxc2 $18
    ) 48. Ke3 Qg1+ 49. Kf3 Bd1+ 50. Be2 Bxe2+ 51. Kxe2 Qg4+ 52. Ke3 Qxh5 53. Qxb4+
    c5 54. Qb6+ Kd7 $11) 45... Kc5 46. Qg5+ (46. Qxb7 Qe5+ 47. Be2 Qg3+ 48. Kf1
    Qf4+ 49. Ke1 Qc1+ 50. Kf2 Qxh6 $17) 46... Kd4 47. Be2 Qe5 48. Qd2+ Kc5 49.
    Qxc2+ Qc3+ 50. Qxc3+ bxc3 51. Rxc6+ Kxc6 52. Bf3+ Kc5 53. Bxb7 Kd4 54. h5 Ke5
    55. Ke2 c2 56. Kd2 c1=Q+ 57. Kxc1 Kf5 58. Kc2 Kg5 59. Bf3 Kf6 60. Kb3 Ke6 61.
    Kxa3 Ke5 62. Kb4 Kf6 63. a4 Ke5 64. a5 Kf4 65. a6 Kxf3 66. a7 Ke4 67. h6 Ke5
    68. h7 Ke4 69. a8=Q+ Ke5 70. h8=Q+ Kf4 71. Qf6+ Ke3 72. Qaf3+ Kd2 73. Q6c3#)
    41. Rxc5 Re7 $17) 40... Rf7 41. Re3 (41. Bd1 $5 $17) 41... Qf4 $19 {
    Black gets strong initiative} 42. Qxf4 (42. Qc5 Qxh4 43. Bd1 Rf1 44. Qa7+ Kh6
    $19) 42... Rxf4 43. Re6 (43. Rh3 Rf2 44. Bd3 Bxd3 45. Rxd3 Rh2 $19) 43... c5 (
    43... Bf7 44. Rxc6 Bxa2 45. Rc7+ Kg6 46. Rc6+ Kg7 47. Bxh5 Rxh4 48. Bf3 $19)
    44. Rc6 Rxh4 45. Rxc5 Kh6 46. Bd1 (46. c3 Rh1+ 47. Bd1 b3 48. axb3 a2 $17)
    46... Bf7 47. c3 Rh1 (47... Bxa2 $142 $5 48. cxb4 Bf7 $19) 48. cxb4 $17 h4 49.
    Kd2 Rh2+ 50. Kc3 $2 (50. Be2 $142 $15) 50... Rxa2 $19 51. Bb3 (51. Rf5 Bg6 52.
    Rf1 Ra1 $19) 51... Rf2 52. Bxf7 Rxf7 53. Kb3 (53. Ra5 h3 54. Re5 h2 $19) 53...
    Rf3+ 54. Ka2 h3 55. b5 h2 1/2-1/2
    
    [Event "corr 3GMM-23"]
    [Site "?"]
    [Date "1997.??.??"]
    [Round "?"]
    [White "Wilk, Krzysztof"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "94"]
    [EventDate "1997.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nh6 5. Qh5+ $11 Kf8 6. Ne2 d6 (6... c6 7.
    Nbc3 $15) 7. h3 (7. c3 Ba5 $11) 7... Qe8 (7... c6 8. Nbc3 $15) 8. Ng3 (8. Qf3
    Nd7 $15) 8... Qxh5 9. Nxh5 Nd7 (9... Nc6 10. f4 $15) 10. O-O (10. c3 Ba5 $15)
    10... Nb6 11. Bb3 Bd7 (11... a5 12. a4 $15) 12. a4 (12. c3 Ba5 $15) 12... Ba5 (
    12... Be8 13. Ng3 Bf7 14. d3 $15) 13. d4 (13. f4 Nf7 14. d3 Re8 $15) 13... Be8
    (13... c5 14. dxe5 dxe5 15. Ba3 $17) 14. Ng3 exd4 15. Bxd4 c5 (15... Bf7 16.
    Na3 $15) 16. Bc3 (16. Be3 $5 $11) 16... Bxc3 $15 17. Nxc3 Bc6 (17... c4 18. a5
    cxb3 19. axb6 $11) 18. a5 $11 Nc8 19. f4 (19. Rfd1 Rb8 $11) 19... Ne7 (19... b5
    20. Bd5 Bxd5 21. Nxd5 $11) 20. Rad1 $11 Rd8 21. e5 (21. Rd2 Ng6 $11) 21... Nef5
    $15 22. Nxf5 Nxf5 23. Rfe1 (23. Ba4 Bxa4 24. Nxa4 Ne3 (24... fxe5 $2 25. fxe5
    g6 26. g4 $18) 25. exd6 Kf7 26. Nxc5 b6 27. axb6 Nxf1 28. Kxf1 axb6 $11) 23...
    Nd4 $17 24. exf6 (24. exd6 Rxd6 25. Kf2 b6 $15) 24... gxf6 25. Kf2 h5 (25... d5
    26. Bxd5 Bxd5 27. Nxd5 Rxd5 28. c3 $17) 26. Ne4 (26. Nd5 Bxd5 27. Bxd5 Nxc2 $17
    ) 26... Rh6 (26... Bxe4 27. Rxe4 Nxb3 28. cxb3 $17) 27. g3 Rg6 28. Re3 (28. f5
    Rh6 $17 (28... Nxf5 $143 29. Nxc5 Ng7 30. Re6 $11)) 28... Nf5 $19 {
    Black is in command} 29. Ree1 Bxe4 30. Rxe4 Nxg3 (30... Rxg3 $6 31. Rd5 Rxb3
    32. cxb3 $11) 31. Re6 h4 32. Bd5 (32. Bc4 Nh5 33. f5 Rg5 34. Rexd6 Rxf5+ 35.
    Ke3 Rxd6 36. Rxd6 Ke7 $19) 32... Nh5 33. Bxb7 (33. Re4 f5 34. Re3 Re8 $19)
    33... Nxf4 34. Rexd6 (34. Re3 Rg5 $19) 34... Rxd6 (34... Nxh3+ $142 $5 35. Ke2
    Re8+ 36. Kd2 Re7 $19) 35. Rxd6 $17 Nxh3+ 36. Kf1 (36. Ke3 Rg3+ 37. Ke2 Nf4+ 38.
    Kf2 f5 39. Rf6+ Ke7 40. Rxf5 Nh3+ 41. Ke2 Rg5 $17) 36... Rg1+ 37. Ke2 Rb1 38.
    Be4 (38. Bc8 Nf4+ 39. Kf3 Rf1+ 40. Kg4 Ng6 $17) 38... Ke7 $19 39. Ra6 Ng5 40.
    Rxa7+ Kd6 41. Ra6+ Ke5 42. Bc6 (42. Ba8 $142 $19) 42... h3 43. Ra8 (43. Rb6 Ra1
    $19) 43... Ra1 (43... Kd6 $142 $5 44. Ra6 h2 $19) 44. a6 h2 45. Bg2 (45. Rh8
    $142 Rxa6 46. Bh1 $19) 45... Ne6 (45... Nh3 46. Rh8 h1=Q 47. Re8+ Kf5 48. Bxh1
    Rxa6 $17 (48... Rxh1 $143 49. a7 Nf4+ 50. Kf2 Nh3+ 51. Kg3 $14)) 46. a7 $2 (46.
    Rh8 Nf4+ 47. Kf3 Ra3+ 48. Kf2 Rxa6 49. Bf3 $19) 46... Nf4+ 47. Kf3 Nxg2 (47...
    Nxg2 48. Re8+ Kf5 $19) 0-1
    
    [Event "corr SOK-88-36"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Roscher"]
    [Black "Diener, Rudolf"]
    [Result "*"]
    [PlyCount "24"]
    [EventDate "1988.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nh6 5. Qh5+ $11 Kf8 6. Nf3 d6 7. h3 Bd7 8.
    Nc3 c6 9. O-O b5 10. Bb3 Bc5 11. Ne2 (11. Qh4 Ke8 $11) 11... a5 (11... f5 12.
    exf5 Bxf5 13. d4 $11) 12. a4 bxa4 (12... bxa4 13. Rxa4 Qe8 $11) *
    
    [Event "corr SOK-89-43"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Maurer, W."]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "52"]
    [EventDate "1989.??.??"]
    
    1. b4 e5 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nh6 5. Nf3 (5. Qh5+ Kf8 $11) 5... c6 $15
    6. O-O b5 7. Bb3 d6 (7... d5 8. a3 Ba5 9. exd5 $11) 8. Nc3 Bg4 9. h3 Bh5 10. a4
    bxa4 11. Rxa4 a5 12. Qe2 Nd7 13. Raa1 Nc5 14. Bc4 Nf7 15. Qe3 Bxf3 16. Qxf3 (
    16. Bxf7+ $142 $5 Kxf7 17. Qxf3 $17) 16... Ng5 $19 17. Qh5+ g6 18. Qh6 Bxc3 19.
    Bxc3 Qc7 (19... Ncxe4 $5 20. Qg7 Rf8 $17) 20. d3 $15 Nce6 21. h4 Nf4 22. hxg5
    Ne2+ 23. Kh1 Nxc3 24. gxf6 d5 25. exd5 cxd5 26. Qg5 $4 (26. Ra3 Qd6 27. Rxc3
    dxc4 28. Rxc4 Qxf6 29. Re1 $16) 26... Kf7 $4 (26... Kf7 27. Ra3 h6 $14) (26...
    dxc4 $142 27. f4 e4 28. dxe4 a4 $19 (28... Nxe4 $6 29. Rfe1 O-O 30. Qd5+ Qf7
    31. Qxf7+ Kxf7 32. Rxe4 $15)) 0-1
    
    [Event "corr ICCF Jubilee"]
    [Site "?"]
    [Date "2002.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Hart, Bert"]
    [Result "1-0"]
    [PlyCount "53"]
    [EventDate "2002.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. f4 Nc6 4. fxe5 Nh6 5. Nf3 O-O 6. a3 Ba5 7. Bc3 Bxc3 8.
    Nxc3 d6 (8... Re8 9. e3 $17) 9. exd6 $15 Qxd6 (9... cxd6 10. e4 $15) 10. e3 Re8
    (10... Ng4 11. Be2 $11) 11. Be2 Ne5 (11... a6 12. O-O $11) 12. O-O Bd7 (12...
    c6 13. Ne4 Nxf3+ 14. Bxf3 $11) 13. Nd4 (13. Nxe5 Rxe5 14. Bf3 c6 $11) 13...
    Neg4 14. g3 (14. Nf3 a6 15. Qe1 Bc6 $15) 14... a6 (14... Qc5 15. Bxg4 Nxg4 16.
    Qf3 $15) 15. Bf3 $11 c5 (15... Rab8 16. Qe2 $11) 16. Nb3 Rab8 (16... Rad8 $5
    $11) 17. Ne4 $14 Qg6 18. Nexc5 (18. Nbxc5 Bf5 19. Nf2 Nxf2 20. Rxf2 Ng4 21.
    Bxg4 Bxg4 $14) 18... Bb5 19. Nd3 (19. Bxg4 Nxg4 20. Rf4 Ne5 $16) 19... Rbd8 $11
    20. Nd4 (20. Bxb7 Bxd3 21. cxd3 Qb6 $15) 20... Bxd3 $15 21. cxd3 Rxd4 $4 (21...
    Qh5 $142 22. h4 Qg6 23. Bxg4 Nxg4 $15) 22. exd4 $18 Qxd3 (22... Qh5 23. Bxg4
    Nxg4 24. Rf2 $18) 23. Qa4 (23. Bxg4 $6 Qxd4+ 24. Kh1 Nxg4 $14) 23... Rd8 (23...
    b5 24. Qb4 Rd8 25. d5 $18) 24. Rae1 (24. Qb4 $142 $18) 24... g6 $4 (24... b5
    $142 25. Qb4 Nf6 $18) 25. d5 (25. Bxg4 b5 26. Be2 Qxd4+ (26... bxa4 $4 27. Bxd3
    Rxd4 28. Rf3 $18) 27. Qxd4 Rxd4 $18) 25... Nf6 (25... f5 26. Qf4 Qxa3 $18) 26.
    Qh4 Kg7 (26... Nhg4 27. Bxg4 Qd4+ 28. Kh1 $18) 27. Be2 (27. Be2 g5 28. Qxh6+
    Kxh6 29. Bxd3 $18) 1-0
    
    [Event "corr SOK-92-79"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Roggensack_Hanspach, Peter"]
    [Result "1/2-1/2"]
    [PlyCount "60"]
    [EventDate "1992.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. a3 Be7 5. c4 O-O 6. e3 d5 7. Qb3 (7. cxd5
    Nbd7 8. Bd4 Nxd5 $15) 7... c5 (7... Nc6 8. Bxf6 Bxf6 9. d4 dxc4 10. Bxc4 $17)
    8. Nf3 (8. cxd5 Qxd5 9. Qxd5 Nxd5 $11) 8... Nc6 9. Bb2 (9. d4 Nxe5 10. Nxe5
    cxd4 11. exd4 dxc4 12. Qxc4 Be6 $17) 9... Na5 $17 10. Qc2 Nxc4 11. Bxc4 dxc4
    12. Qxc4 Be6 13. Qc2 b5 14. d3 (14. Ng5 g6 $15) 14... c4 15. d4 (15. dxc4 Bxc4
    16. Nbd2 Bd3 $15) 15... Bd5 16. Nbd2 Re8 17. O-O Rc8 18. Bc3 (18. e4 Be6 $17)
    18... Bxf3 (18... Bd6 $5 $17) 19. Nxf3 Qd5 20. Nd2 Bd6 21. Rfe1 Bxh2+ $4 (21...
    Ne4 $142 $17) 22. Kxh2 $16 Qh5+ (22... Qd6+ 23. Kg1 $16) 23. Kg1 $18 Ng4 {
    Black fights for the Initiative} 24. Nf3 Rc6 25. Kf1 (25. e4 $142 $18) 25...
    Qh1+ $11 26. Ke2 $4 (26. Ng1 $142 Nh2+ 27. Ke2 Qxg2 28. Ra2 $14) 26... Qxg2 $17
    27. Ne5 Qxf2+ 28. Kd1 Nxe3+ $4 (28... Qxc2+ 29. Kxc2 Nxe5 30. dxe5 $17) 29.
    Rxe3 Qxe3 30. Nxc6 Qg1+ 1/2-1/2
    
    [Event "corr ICCF T/19-F"]
    [Site "?"]
    [Date "1979.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "De Visser, Arno"]
    [Result "*"]
    [PlyCount "56"]
    [EventDate "1979.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c4 O-O 5. e3 d5 6. cxd5 Nxd5 7. Nf3 Nc6 8.
    Bb2 Bg4 9. Be2 Re8 10. O-O Qe7 11. a3 Ba5 12. h3 Bf5 13. Bb5 Qd6 14. Qa4 Re4 (
    14... Nb6 15. Qh4 $15) 15. d4 (15. Qb3 $11) 15... Qg6 (15... Nb6 $142 $5 16.
    Qc2 Rf4 $11) 16. Bxc6 $14 Bxh3 {Threatening mate... how?} 17. g3 (17. Nh4 Qxc6
    18. Qxa5 Rxh4 19. gxh3 Rxh3 20. Rc1 $19) 17... bxc6 $15 18. Rc1 Rxe3 19. Qxa5
    $4 (19. fxe3 {A deflection} Qxg3+ {A double attack}) 19... Rxf3 $19 20. Qe1 Nf4
    21. Rc3 (21. Rd1 $19) 21... Nd3 22. Rxd3 Rxd3 23. Nd2 f6 24. f3 (24. Nf1 $19)
    24... Re8 25. Qf2 Rxd2 $1 26. Qxd2 {Deflection from g3} Qxg3+ 27. Kh1 Qxf3+ 28.
    Kg1 Re2 (28... Re2 29. Qxe2 Qxe2 30. Re1 Qg2#) *
    
    [Event "corr SOK-88-25"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Hasler, Ulrich"]
    [Result "1-0"]
    [PlyCount "63"]
    [EventDate "1989.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 $11 Nf6 4. c4 O-O 5. Qb3 Nc6 6. Bb2 Qe7 7. a3 Bc5
    8. Nf3 Re8 9. e3 b6 (9... a5 10. d4 a4 11. Qd3 $11) 10. Be2 Bb7 11. d4 Na5 12.
    Qc2 Be4 13. Qc3 Bxb1 (13... Bd6 $5 $11) 14. Rxb1 $14 (14. dxc5 $143 Be4 $15)
    14... Ne4 15. Qc1 (15. Qd3 Bd6 $16) 15... Bd6 (15... Nb3 16. Qd1 Nxf2 17. Kxf2
    (17. Qxb3 $6 Nxh1 18. dxc5 Qxc5 $11 (18... Qxe3 19. Qxe3 Rxe3 20. Bc1 $11))
    17... Qxe3+ 18. Kf1 $18) 16. Bd3 c6 (16... Nb3 17. Qc2 Na5 18. Bxe4 Qxe4 19.
    Qxe4 Rxe4 20. Nd2 $14) 17. Ne5 (17. O-O Nb3 18. Qc2 Na5 $16) 17... Ng5 (17...
    Bxe5 18. dxe5 Nb3 19. Qc2 $16) 18. h4 Ne6 19. Qc2 Nf8 20. Nf3 (20. Qc3 Bxe5 21.
    dxe5 Ne6 $11) 20... Rac8 (20... Bxa3 $5 21. Bxa3 Qxa3 $15) 21. Qa4 c5 22. d5
    Ng6 23. Bc3 (23. h5 Nf4 24. Bf5 Rcd8 $14) 23... Rb8 (23... Nf4 $5 24. Bf1 Qe4
    $11) 24. Bxa5 bxa5 25. Qxa5 Ne5 26. Nxe5 Bxe5 27. Rxb8 Bxb8 28. Rh3 d6 (28...
    Qd6 29. Kd1 $14) 29. Qc3 $16 Qd8 30. Rg3 {The mate threat is Qxg7} g6 (30...
    Re5 $5 $16) 31. h5 $18 Bc7 32. hxg6 (32. hxg6 hxg6 33. Rh3 $18) 1-0
    
    [Event "corr SOK-87-14"]
    [Site "?"]
    [Date "1987.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Drefke, A."]
    [Result "1-0"]
    [PlyCount "63"]
    [EventDate "1987.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c4 O-O 5. Qb3 Nc6 $17 6. Bc3 a5 (6... Bxc3
    7. Nxc3 Nd4 8. Qb2 $17) 7. a3 a4 (7... Bxc3 8. Nxc3 Rb8 9. e3 $15) 8. Qc2 Bxc3
    9. Nxc3 Nd4 10. Qd1 (10. Qd3 Nb3 11. Rb1 d6 $15) 10... Nb3 (10... d5 11. cxd5
    Nxd5 12. Nxd5 Qxd5 13. e3 $17) 11. Ra2 $15 d6 (11... Nc5 12. e3 $15) 12. Nxa4
    $11 Rxa4 (12... Nd4 13. Nc3 $11) 13. Qxb3 Qd7 (13... Bd7 14. Nf3 $11) 14. e3
    $14 b6 15. Ne2 Bb7 16. Nc3 Ra5 17. f3 d5 18. Kf2 (18. cxd5 Bxd5 19. Nxd5 Nxd5
    $14) 18... d4 19. Nb5 dxe3+ 20. dxe3 Rfa8 21. Be2 Qe7 22. a4 (22. Rd1 $14)
    22... Nd7 (22... Qe5 $142 $5 $11) 23. Nxc7 $16 Rc8 24. Nd5 Bxd5 25. cxd5 Qc5 (
    25... Qd6 26. Bb5 $16) 26. Rd1 Nf6 (26... Qd6 27. Kg1 $18) 27. Bb5 (27. d6 Nd7
    $18) 27... Rd8 (27... Qd6 28. Kg1 $18) 28. Rc2 Qe7 29. e4 h6 30. Rc6 Nxe4+ (
    30... Nd7 $18) 31. fxe4 Qxe4 32. d6 (32. d6 Qe5 33. Qg3 $18) (32. Rxb6 Qf4+ 33.
    Kg1 Qc7 $18) 1-0
    
    [Event "corr ICCF WT-H-105"]
    [Site "?"]
    [Date "1975.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Berman, NW."]
    [Result "1/2-1/2"]
    [PlyCount "59"]
    [EventDate "1975.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c4 O-O 5. Qb3 Be7 (5... Nc6 6. Nc3 $17) 6.
    e3 d5 (6... d6 7. Bxf6 Bxf6 8. d4 $15) 7. cxd5 Nxd5 8. Bc4 (8. Nc3 Nb6 9. d4
    $15) 8... Nc6 (8... Nb6 $5 $15) 9. Bxg7 $11 (9. Bxd5 $143 Nxe5 10. d4 Nd3+ 11.
    Qxd3 Qxd5 $15) 9... Kxg7 (9... Na5 10. Qb5 c6 11. Qa4 Kxg7 12. Bxd5 Qxd5 13.
    Nf3 $19) 10. Bxd5 Na5 11. Qd3 Be6 12. Be4 f5 13. Qxd8 Raxd8 14. Bc2 (14. Bf3 $5
    $11) 14... Bf6 $15 15. Nc3 Nc4 16. d4 (16. O-O-O Nxd2 17. Nge2 Nc4 $15) 16...
    c5 (16... f4 17. Bb3 $11) 17. Rb1 $15 Rf7 18. Nf3 Na3 19. Rb2 (19. Rc1 $5 $11)
    19... cxd4 (19... Nxc2+ $143 20. Rxc2 cxd4 21. Nxd4 Bxd4 22. exd4 Rxd4 23. Nb5
    Re4+ 24. Kd1 Rd7+ 25. Rd2 Rxd2+ 26. Kxd2 Bxa2 27. Nxa7 $15) 20. exd4 (20. Nxd4
    Bxd4 21. exd4 $15) 20... Rc8 (20... Rc7 $142 $5 $17) 21. Bb3 $11 Bxb3 22. Rxb3
    Nc2+ 23. Kd2 (23. Ke2 Nxd4+ 24. Nxd4 Bxd4 $11) 23... Nxd4 24. Nxd4 Bxd4 25. Nd1
    (25. Nb5 Bxf2 26. Nd6 Rd8 $15) 25... b6 (25... Rd7 26. Ne3 Kf6 27. Rd3 $15) 26.
    Re1 (26. Rd3 Rd7 $11) 26... Rfc7 $15 27. Re2 Bf6 (27... Kf6 28. a3 $15) 28. Rd3
    $11 b5 (28... Rc2+ 29. Ke1 $15) 29. Ne3 Bg5 30. Ke1 1/2-1/2
    
    [Event "corr"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Spiegel, Ulrich"]
    [Result "0-1"]
    [PlyCount "38"]
    [EventDate "1989.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c4 O-O 5. Qb3 Be7 (5... Nc6 6. Bb2 $17) 6.
    e3 d6 7. Bb2 Nc6 8. Nf3 Na5 (8... d5 9. cxd5 Nxd5 10. Be2 $15) 9. Qa4 (9. Qc3
    c6 $11) 9... c5 10. Bc3 Nc6 11. d3 (11. d4 d5 $15) 11... d5 12. Na3 (12. d4 Re8
    $15) 12... d4 $17 13. exd4 (13. Bd2 $5 $17) 13... cxd4 14. Bb2 (14. Bd2 Re8 15.
    Be2 Bc5 $19) 14... Bb4+ 15. Kd1 Bg4 (15... Ng4 $142 $5 16. Rg1 Nxf2+ 17. Kc1
    Bf5 $19) 16. Be2 Re8 17. Nb5 $2 (17. Nb1 $142 $19) 17... a6 18. Nbxd4 (18. Qc2
    axb5 19. a3 Bc3 20. cxb5 Nd5 21. bxc6 Bxb2 22. Qxb2 Nc3+ 23. Ke1 Rxe2+ 24. Qxe2
    Nxe2 25. cxb7 Rb8 26. Kxe2 Qe7+ 27. Kd2 Bxf3 28. gxf3 Rxb7 $19) 18... Nxd4 19.
    Nxd4 (19. Qxb4 Nxe2 20. Qd2 $19) 19... Rxe2 $1 (19... Rxe2 20. Kc1 Rxb2 21.
    Kxb2 Qxd4+ 22. Kb1 Bc3 $19) 0-1
    
    [Event "corr DDR"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Weder, Erhard"]
    [Result "1-0"]
    [PlyCount "75"]
    [EventDate "1985.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c4 Nc6 $15 5. Bb2 O-O 6. e3 d5 7. cxd5 Nxd5
    8. Nf3 Re8 9. a3 Ba5 10. Bb5 Bd7 11. Qb3 Nb6 12. O-O a6 (12... Be6 13. Qc2 $11)
    13. Be2 (13. Bd3 Bg4 $11) 13... Ne7 (13... Be6 14. Qc2 $11) 14. Ng5 (14. Qc2
    Bb5 15. d3 Na4 $11) 14... Ned5 $15 15. f4 (15. Nf3 Nf4 16. exf4 Rxe2 $15) 15...
    h6 $17 16. Bf3 $2 (16. Nh3 $142 $17) 16... Ba4 $19 (16... hxg5 $6 17. Bxd5 Nxd5
    18. Qxd5 $17) 17. Qd3 hxg5 18. fxg5 $2 (18. Qd4 $142 f6 19. fxg5 $19) 18...
    Qxg5 19. h4 Qd8 20. Bh5 Nf6 (20... Rf8 21. Qd4 f6 22. e4 $19) 21. Qf5 Qd5 (
    21... Bxd2 22. Nxd2 Qxd2 23. Bxf6 Qxe3+ 24. Kh1 gxf6 25. Bxf7+ Kf8 26. Qxf6 $18
    ) 22. Bxf6 gxf6 23. Qg4+ Kh7 24. Rxf6 Rg8 (24... Bd7 $5 25. Qf3 Qxf3 26. Rxf3
    $19) 25. Qf5+ $17 Qxf5 26. Rxf5 Bb5 27. a4 Nxa4 (27... Bxa4 28. Rxa5) 28. Bd1
    Rg7 (28... Nb2 $5 29. Bc2 Bd3 30. Bxd3 Nxd3 31. Raxa5 Kg7 $15) 29. Bxa4 $11
    Bxa4 30. Rxa4 Bb6 31. Raf4 Rf8 (31... Kg8 32. Nc3 $11) 32. Nc3 $14 c6 (32...
    Kh6 33. g4 $16) 33. Rb4 $16 Bd8 34. Rxb7 Kh6 35. Ne2 f6 $2 (35... Bxh4 $142 $5
    36. Rb6 Ra8 $16) 36. Rxg7 $18 Kxg7 37. Rc5 f5 38. Nf4 (38. Nf4 Re8 39. g3 $18)
    (38. Nd4 Rf6 39. Nxf5+ Kf8 $18) 1-0
    
    [Event "corr ICCF T-625-19"]
    [Site "?"]
    [Date "1975.??.??"]
    [Round "?"]
    [White "Janecky, J."]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "56"]
    [EventDate "1975.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c4 Nc6 5. Bb2 O-O 6. e3 d5 7. cxd5 Nxd5 8.
    Be2 Qg5 9. Nf3 Qe7 10. O-O Re8 11. d4 Bg4 12. Nbd2 $2 (12. a3 $142 Bd6 13. Qb3
    $11) 12... Nxe3 $1 $19 13. fxe3 Qxe3+ 14. Rf2 Bxd2 15. d5 $2 (15. Bc4 $142 Bxf3
    16. Qxd2 Qxd2 17. Rxd2 $19) 15... Bxf3 16. Bxf3 Be1 {Threatening mate... how?}
    17. Qe2 (17. Qxe1 Qxe1+ 18. Rxe1 Rxe1+ 19. Rf1 Rxf1+ 20. Kxf1 Ne7 $19) 17...
    Bxf2+ 18. Qxf2 Qxf2+ 19. Kxf2 Nb4 (19... Ne5 20. Bxe5 Rxe5 21. Rb1 $19) 20. Rd1
    (20. Bc3 Nd3+ 21. Kg3 Rad8 $19) 20... c6 (20... Nxa2 $142 21. Rd4 a5 22. Rg4
    $19) 21. d6 Rad8 {Black gets deadly initiative} 22. a3 Nd5 (22... Nc2 $5 23.
    Bc1 $19) 23. Bxd5 cxd5 24. Rxd5 f6 25. a4 (25. Bc1 Kf7 $19) 25... Kf7 26. Ba3 (
    26. Rd4 Rc8 27. Ba3 Rc2+ 28. Kf1 Ree2 $19) 26... Re5 27. Rd4 Ke6 (27... Ra5 28.
    Bc1 $19) 28. Bb4 (28. h4 b5 $19) 28... a5 (28... a5 29. Ba3 b5 30. axb5 Rxb5
    $19) 0-1
    
    [Event "corr ICCF T-19-F"]
    [Site "?"]
    [Date "1993.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Otto, Zdenek"]
    [Result "*"]
    [PlyCount "27"]
    [EventDate "1993.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c4 Nc6 5. Bb2 d5 6. cxd5 $11 Qxd5 7. Bxf6
    gxf6 8. Nc3 Bxc3 9. dxc3 Qe5 10. Rc1 Be6 11. Nf3 Qa5 12. a4 Bd7 (12... Ne5 13.
    Qd4 $11) 13. Qb3 $14 O-O-O 14. Rb1 (14. Qxf7 Qf5 $14) *
    
    [Event "corr ICCF EU/M/701"]
    [Site "?"]
    [Date "1987.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Secula, V."]
    [Result "1-0"]
    [PlyCount "105"]
    [EventDate "1987.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Nc6 6. Bb2 Ba5 7. Qf3 d5 (7...
    Ne8 8. Be2 (8. Bc4 d6 9. Bd3 Qe7 10. Qe4 (10. Be4 Ne5 11. Bxe5 $11 {-0.03/7})
    10... Qxe4 11. Bxe4 $11 {0.00/7}) (8. Bd3 d6 9. Be4 Qg5 (9... Be6 10. Bxc6 bxc6
    11. Qxc6 $11 {0.16/11}) 10. Bxc6 bxc6 11. Ne2 $11 {-0.09/7}) 8... d6 9. Nh3 (9.
    Bd3 Qh4 10. Be4 Rb8 11. Bxc6 $11 {0.00/6}) 9... Ne5 10. Qg3 Qe7 11. f4 $11 {
    0.03/6}) 8. Bxf6 Qxf6 9. Qxf6 gxf6 10. f4 (10. c3 $142 $14 Bf5 11. Ne2 $14 {
    0.31/10} (11. Nf3 $14 {0.28/7})) (10. Bb5 Bf5 11. Kd1 $11 {0.16/7}) 10... d4
    $17 (10... Re8 11. c3 $15 {-0.31/6}) 11. exd4 (11. Bb5 $15 {-0.31/6}) 11...
    Nxd4 (11... Re8+ $5 12. Kf2 Bb6 $17) 12. Bd3 $11 Re8+ 13. Kf2 Bf5 14. Bxf5 Nxf5
    15. Nf3 Bb6+ 16. Kf1 Rad8 17. Nc3 (17. g3 c6 $11) 17... Bd4 (17... Nd4 18. Rc1
    $17) 18. Re1 $15 Bxc3 19. dxc3 Rxe1+ 20. Kxe1 Ne3 21. Ke2 (21. Kf2 Nd1+ 22. Kg3
    Nxc3 $15) 21... Nd5 $15 (21... Nxg2 $2 22. Rg1 $18) 22. g3 Nxc3+ 23. Ke3 c5 24.
    Nd2 b6 25. Nb1 Nd1+ 26. Ke2 Nb2 27. Nd2 Na4 28. Nb1 Kf8 29. Rd1 Rxd1 30. Kxd1
    Ke7 31. Ke2 Ke6 32. Ke3 Kd5 33. Nd2 Nb2 34. Ne4 Ke6 35. Ke2 h6 36. Nc3 a6 37.
    g4 (37. a4 $5 $17) 37... f5 $19 38. g5 h5 (38... hxg5 $142 $5 39. fxg5 f4 $19)
    39. a4 $17 Kd6 40. Kf3 Kc6 41. Kg3 (41. h4 Nc4 42. Ke2 b5 $17) 41... b5 42.
    axb5+ axb5 43. Kh4 b4 44. Nb1 (44. Ne2 Nc4 45. Kxh5 Ne3 $17) 44... Nd1 (44...
    Nc4 $142 $5 $19) 45. Kxh5 $17 Kd5 (45... Ne3 $142 $5 46. Kh6 Kd6 $17) 46. g6
    fxg6+ 47. Kxg6 Ne3 48. h4 Ke4 49. h5 Ng4 (49... Nxc2 $4 50. h6 Kxf4 51. h7 $18)
    (49... Kxf4 $4 50. h6 Nxc2 51. h7 $18) 50. Kg5 c4 51. Nd2+ Kd4 (51... Kd5 52.
    Kxf5 b3 53. Nxb3 (53. Kxg4 $4 bxc2 54. h6 c1=Q $19) 53... Nh6+ 54. Kg6 $18) 52.
    Kxf5 Ne3+ (52... Nh6+ 53. Kg5 Kc3 54. Nxc4 (54. Kxh6 $6 Kxd2 55. f5 b3 56. cxb3
    cxb3 $18) 54... Kxc4 55. Kxh6 $18) 53. Kg5 (53. Kg5 c3 54. Nb3+ Kc4 55. h6 Nxc2
    56. Nc1 $18) 1-0
    
    [Event "corr ICCF EU-M-722"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Dempster, Dave"]
    [Result "1-0"]
    [PlyCount "35"]
    [EventDate "1985.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Ba5 6. Qf3 $11 d5 (6... Ne8 7.
    Bd3 $11) 7. Bxf6 $14 Qxf6 8. Qxf6 gxf6 9. Bd3 (9. Nf3 Re8 $14) 9... c5 10. c3
    Nc6 11. Ne2 (11. Bb5 Bf5 $11) 11... c4 (11... a6 12. Nf4 Be6 13. e4 $11) 12.
    Bc2 Ne5 (12... Re8 13. d4 $11) 13. O-O Rd8 14. f4 Nd3 (14... Nc6 15. Ng3 $14)
    15. Bxd3 cxd3 16. Nd4 Rd6 (16... Re8 17. h3 $14) 17. Nb3 Bd8 18. f5 (18. f5 Bc7
    19. Nc5 $16) 1-0
    
    [Event "corr ICCF"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Jacobsen, Fredrik"]
    [Result "1/2-1/2"]
    [PlyCount "97"]
    [EventDate "1988.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Ba5 6. Qf3 $11 d5 (6... Ne8 7.
    Bd3 d6 8. Bb2 $11) 7. Bxf6 $14 Qxf6 8. Qxf6 gxf6 9. Bd3 (9. Nf3 Re8 $14) 9...
    c5 $11 10. c3 Nc6 11. Ne2 Rd8 12. O-O Bg4 (12... Bc7 13. Ng3 $11) 13. f3 (13.
    Ng3 Bc7 $11) 13... Bh5 (13... Be6 14. f4 $11) 14. Bb5 (14. f4 d4 15. Bb5 dxe3
    16. dxe3 a6 $11) 14... Ne5 (14... Bg6 15. f4 $11) 15. d4 (15. Nf4 Bg6 $14)
    15... a6 16. dxe5 (16. Nf4 axb5 17. Nxh5 Nc4 $14) 16... axb5 $11 17. exf6 Bg6
    18. Ra2 (18. Rd1 Bc7 $11) 18... Ra6 (18... Bc7 19. Rd2 $11) 19. Rd1 Bc7 (19...
    Rxf6 20. Rb2 $11) 20. Rb2 (20. Rad2 Raa8 $14) 20... Rxf6 21. Rxb5 b6 22. Rb2
    Be5 (22... Re6 23. Kf2 $14) 23. e4 d4 (23... Rfd6 24. exd5 Rxd5 25. Rxd5 Rxd5
    26. Kf2 $14) 24. cxd4 $16 cxd4 25. Rb5 Re8 (25... Re6 26. Kf2 d3 27. Ke3 $16)
    26. Rd5 (26. Rd3 Rc6 $16) 26... Rd6 $16 27. Rxd6 Bxd6 28. Ng3 (28. Nxd4 $142 $5
    Bc5 29. Nc3 $16) 28... Bc5 (28... Bxg3 29. hxg3 f5 30. Rxd4 fxe4 31. fxe4 Rxe4
    32. Rxe4 Bxe4 33. Nd2 $14) 29. Kf1 $14 f6 (29... h5 30. h4 $14) 30. h4 Ra8 {
    (The isolani on a3 becomes a target)} 31. Ne2 (31. Nf5 Bxf5 32. exf5 Kf7 $14)
    31... Bf7 $11 32. Rd2 (32. Nxd4 $143 Rd8 $17) (32. Rxd4 $2 Bxd4 33. Nxd4 Rd8
    $19) 32... Ra4 (32... Bc4 33. Ke1 d3 34. Nec3 $11) 33. Ke1 b5 34. Kd1 (34. Rd1
    Bb3 35. Rc1 Bc4 $11) 34... Bc4 (34... b4 35. axb4 (35. Nxd4 $143 bxa3 36. Nxa3
    Rxa3 $17) 35... Rxb4 36. Kc2 $11) 35. Nc1 (35. g4 Kf7 $14) 35... Kf7 36. Kc2
    Kg6 (36... h5 $5 $11) 37. Nd3 $16 Bxd3+ (37... Bb6 38. g4 $14) 38. Rxd3 (38.
    Kxd3 b4 39. axb4 Rxb4 $16) 38... Bd6 (38... Kh5 39. Rb3 Ra5 40. g3 $14) 39. Rb3
    $16 Kh5 40. Rxb5+ Kxh4 41. g4 (41. Rb6 Be5 42. f4 Bxf4 43. Rxf6 Kg3 $16) 41...
    Kg3 (41... Bxa3 $2 42. Kb3 (42. Nxa3 Rxa3 43. Rf5 Rc3+ 44. Kd2 Rc6 $16) 42...
    Ra6 43. Nxa3 $18) 42. Rb6 (42. Rb3 Rc4+ 43. Kd2 Kf4 $16) 42... Be5 (42... Bf4
    43. Rxf6 Kxf3 44. e5 Kxg4 45. e6 $11) 43. Rb3 $14 Rc4+ 44. Kd3 (44. Kd1 Kf2 $14
    ) 44... Rc1 45. a4 (45. Nd2 Kf2 $14) 45... Rf1 46. Nd2 Ra1 47. Rb4 (47. Nc4
    Rxa4 48. g5 Kxf3 49. gxf6 Bxf6 $11) 47... Ra3+ 48. Kc4 Ra2 49. Kd3 (49. Nb3
    Kxf3 50. Nxd4+ Kxg4 $11) 1/2-1/2
    
    [Event "corr ICCF WT-M-593"]
    [Site "?"]
    [Date "1993.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Kruchem, Peter"]
    [Result "1/2-1/2"]
    [PlyCount "98"]
    [EventDate "1993.??.??"]
    
    1. b4 e5 $15 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Ba5 6. Qf3 $11 d5 (6...
    Ne8 7. Bd3 d6 8. Bb2 $11) 7. Bxf6 $14 Qxf6 8. Qxf6 gxf6 9. Bd3 (9. Kd1 c5 $11)
    9... c5 10. c3 (10. Nf3 Nc6 $11) 10... c4 (10... Rd8 11. f4 $11) 11. Bc2 Nc6
    12. Ne2 Kh8 (12... Re8 13. Nf4 Be6 14. Nh5 $11) 13. d4 $14 cxd3 14. Bxd3 Rg8
    15. g3 (15. Nf4 Ne5 $11) 15... Ne5 16. Bc2 Bg4 17. Nd4 Rac8 18. Kd2 Nf3+ 19.
    Nxf3 Bxf3 20. Rc1 Rc7 21. Ra2 Rd8 22. Bd3 d4 (22... Kg7 23. Rb2 $14) 23. exd4
    $14 Rxd4 24. Ke3 Rd8 25. Kxf3 Rxd3+ {The pressure on the isolated pawn grows}
    26. Ke2 Rd8 27. Rb2 (27. Rd2 Rxd2+ 28. Kxd2 b5 $14) 27... Kg7 $11 28. Rb5 (28.
    h3 h6 $11) 28... Re7+ (28... b6 29. Rb2 $11) 29. Kf1 b6 30. Rf5 (30. Re1 Re6
    $11) 30... Re4 (30... Red7 31. Ke2 $11) 31. Kg2 (31. Re1 Rc4 $11) 31... Kg6 32.
    Rf3 (32. Rb5 a6 33. Rb2 Rc4 $15) 32... f5 (32... b5 33. h3 $11) 33. Rc2 (33.
    Re3 b5 $11) 33... Re1 34. Rb2 (34. Rd2 $5 b5 35. Rb2 $15) 34... Rc1 $17 35. a4
    (35. c4 Rdd1 36. Rfb3 f4 $17) 35... Rdd1 36. Na3 Rg1+ (36... Bxc3 37. Rc2 Rg1+
    38. Kh3 $17) 37. Kh3 Rxc3 (37... Bxc3 38. Re2 $17) 38. Rxc3 $15 Bxc3 39. Rc2
    Bf6 40. Nb5 Ra1 41. Rc4 Ra2 (41... Re1 42. Nxa7 Re4 43. Rc6 $11) 42. f4 (42.
    Nxa7 $5 Rxf2 43. Nc8 $14) 42... a5 $11 43. Nc7 (43. Na7 Re2 44. Nb5 Re4 $15)
    43... Be7 $15 44. Rc6+ Kg7 45. Rxb6 (45. Nd5 Bc5 $17) 45... Bd8 $17 (45... Rxa4
    $143 46. Nd5 Bf8 47. Ne3 $11) 46. Rb7 Bxc7 (46... Rxa4 $2 47. Ne6+ Kg6 48. Nxd8
    $18) 47. Rxc7 Rxa4 48. Rc5 Kg6 49. Rc6+ (49. Kg2 Ra2+ 50. Kf3 a4 $17) 49... f6
    1/2-1/2
    
    [Event "corr SOK-94-100"]
    [Site "?"]
    [Date "1994.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Mothes, Rainer"]
    [Result "1/2-1/2"]
    [PlyCount "103"]
    [EventDate "1994.??.??"]
    
    1. b4 e5 $15 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Ba5 6. Qf3 $11 d6 (6...
    Ne8 7. Bd3 d5 8. Ne2 $11) 7. Bxf6 $14 Qxf6 8. Qxf6 gxf6 9. Bd3 (9. Nf3 Re8 $14)
    9... c5 (9... Be6 10. Nf3 $14) 10. Ne2 (10. Nf3 Nc6 $14) 10... a6 (10... d5 11.
    Nf4 c4 12. Be2 $14) 11. Nbc3 $16 Be6 12. Be4 Bxc3 (12... Nc6 13. Rb1 f5 14. Bf3
    $16) 13. Nxc3 Ra7 14. Bf3 Bf5 (14... f5 15. Nd5 $16) 15. d3 Nd7 16. Rb1 (16.
    Nd5 Re8 $16) 16... b5 17. Be2 (17. Nd5 Re8 $16) 17... Rb8 (17... Be6 18. Ne4 d5
    19. Nd2 $14) 18. Nd5 Kf8 19. e4 (19. Bf3 Be6 $14) 19... Be6 20. Ne3 b4 21. f4 (
    21. axb4 Rxb4 22. Rxb4 cxb4 $14) 21... bxa3 $11 22. Ra1 Rb2 23. f5 Ba2 24. Kd2
    Rab7 (24... c4 25. Nd1 (25. dxc4 $6 Nc5 $11) (25. Nxc4 $6 Bxc4 26. dxc4 a2 $11)
    25... c3+ 26. Nxc3 $18) 25. Nd1 Nb8 26. Nc3 (26. Nxb2 $5 axb2 27. Rxa2 $16)
    26... Bb3 $14 27. Bd1 a2 28. Kc1 Ba4 29. Nxa2 Bc6 30. Nc3 Kg7 (30... R2b6 31.
    Be2 $14) 31. Re1 (31. Kd2 R2b6 $14) 31... R2b6 32. Re3 (32. Be2 h6 $14) 32...
    Nd7 33. Rg3+ (33. Ne2 Ne5 $14) 33... Kf8 34. Ne2 d5 (34... h6 35. c4 $14) 35.
    exd5 Bxd5 36. Nf4 Bc6 37. Nh5 (37. Bf3 $5 $14) 37... h6 38. Rg7 Ne5 39. Be2 Bd5
    {Black intends c4} (39... Ke7 40. g4 Bf3 41. Bxf3 Nxf3 42. h3 $11) 40. Ra5 $14
    c4 {The mate threat is c3} 41. Kd2 (41. dxc4 Nxc4 42. Bxc4 Bxc4 $14) 41... cxd3
    $11 42. Rxd5 dxe2 43. Kxe2 Rc7 (43... Rb8 44. Rd2 $11) 44. Rd8+ $14 Ke7 45.
    Rgg8 {Threatening mate: Rge8} Nd7 (45... Rxc2+ $4 46. Kd1 Rd6+ 47. Rxd6 Rxg2
    48. Rxg2 Kxd6 49. Ra2 $18) 46. Rc8 Rbc6 (46... Rxc8 47. Rxc8 Ne5 48. Nf4 $14)
    47. Rxc7 (47. Rge8+ Kd6 48. Rxc7 Kxc7 $14) 47... Rxc7 48. Kd2 (48. Kd1 Rc5 $14)
    48... Rc4 (48... Nb6 49. Ng7 $14) 49. h3 Rh4 50. Ng3 Rf4 (50... a5 51. Ra8 a4
    52. Ne2 $14) 51. Ke3 (51. Rh8 Rf2+ 52. Ne2 Rxg2 53. Rxh6 Ne5 $14) 51... Rc4 $11
    52. Kd2 (52. Kd3 Ne5+ 53. Kd2 Rd4+ 54. Kc3 Rc4+ 55. Kb3 a5 $14) 1/2-1/2
    
    [Event "corr ICCF EU-M-919"]
    [Site "?"]
    [Date "1990.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Gierse, HD."]
    [Result "*"]
    [PlyCount "17"]
    [EventDate "1990.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Ba5 6. Qf3 $11 Ne8 7. Bd3 d5
    8. Nh3 c5 9. Bxh7+ $4 (9. O-O $142 $11) *
    
    [Event "corr ICCF EU-M-662"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Neckar, Vladimir"]
    [Result "0-1"]
    [PlyCount "40"]
    [EventDate "1985.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Ba5 6. Bb2 (6. Qf3 Ne8 $11)
    6... d5 7. c4 (7. Nf3 c5 $11) 7... c5 (7... Be6 8. Qb3 $15) 8. cxd5 Nxd5 9. Qc2
    Re8 (9... Qd6 10. Bd3 f5 11. Nf3 $11) 10. Qxc5 Nc6 11. Nf3 Bg4 (11... Be6 12.
    Qb5 $11) 12. Be2 (12. Bc4 Nb6 $14) 12... Rc8 (12... a6 $11) 13. Qb5 $15 Nf4 14.
    O-O $4 (14. Kf1 $142 Nxe2 15. Kxe2 $15) 14... a6 $19 (14... Nxe2+ $6 15. Qxe2
    Qb6 16. d3 $11) 15. Qc4 Nd4 $1 (15... Nxe2+ $6 16. Qxe2 Qb6 17. d3 $11) 16. Qa4
    (16. Qxd4 Nxe2+) 16... Nfxe2+ (16... Ndxe2+ $5 17. Kh1 Bxf3 18. gxf3 $19) 17.
    Kh1 b5 18. Qd1 (18. Qxa5 Qxa5 19. Nxd4 Nxd4 20. Bxd4 Rc2 $19) 18... Nxf3 19. h3
    (19. Qxe2 Qd6 20. Qxf3 Bxf3 21. gxf3 $19) 19... Qd6 20. g3 Nxg3+ $1 (20...
    Nxg3+ 21. fxg3 Qxg3 22. Qxf3 Bxf3+ 23. Rxf3 Qxf3+ 24. Kg1 Re6 25. Kh2 Rg6 26.
    Bxg7 Qg2#) 0-1
    
    [Event "EU/M/1289 corr ICCF"]
    [Site "?"]
    [Date "2004.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Dzenis, Raivo"]
    [Result "0-1"]
    [PlyCount "40"]
    [EventDate "2004.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Be7 6. c4 d5 7. cxd5 Nxd5 8.
    Qc2 Nc6 9. Bb2 Bf6 10. d4 Re8 11. Nf3 Nxe3 12. fxe3 Nxd4 13. Nxd4 Bxd4 14. Nc3
    Rxe3+ 15. Ne2 Bf5 16. Qc1 (16. Qxf5 Bxb2 {Deflection}) 16... Bd3 17. Bxd4 Qxd4
    18. Ra2 Rae8 19. Rd2 (19. Qd1 Qc4 20. Rb2 $19) 19... Qh4+ 20. Kd1 Bb5 (20...
    Bb5 21. Kc2 Qa4+ (21... Rxe2 $6 22. Bxe2 Bxe2 23. Re1 $19) 22. Kb1 Rb3+ (22...
    Rxe2 $6 23. Bxe2 Bxe2 24. Re1 Qb5+ 25. Ka1 $17) 23. Qb2 Rxb2+ 24. Kxb2 Bxe2 25.
    Bxe2 Rxe2 26. Rxe2 Qb5+ 27. Kc1 Qxe2 $19) 0-1
    
    [Event "corr DDR"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Poenisch, Egmont"]
    [Result "0-1"]
    [PlyCount "48"]
    [EventDate "1988.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Be7 6. c4 d5 7. Nc3 Nbd7 8.
    Bg3 dxc4 9. Bxc4 a6 10. Nf3 b5 11. Bb3 Bb7 12. O-O c5 13. d3 Nh5 14. Be5 (14.
    Bd5 Nxg3 15. fxg3 Bxd5 16. Nxd5 Nf6 $15) 14... g6 (14... Bxf3 15. Qxf3 Nxe5 16.
    Qxh5 Nxd3 $17) 15. e4 $2 (15. Bg3 $142 $15) 15... Nxe5 $19 16. Nxe5 Qd4 17.
    Nxf7 Rxf7 (17... Qxc3 $5 18. Rc1 Qf6 19. Nd6+ c4 20. Bxc4+ bxc4 21. Nxb7 cxd3
    22. Qxd3 Nf4 23. Qb3+ Rf7 $19) 18. Bxf7+ $17 Kxf7 19. Ne2 Qd6 20. f4 Rd8 21.
    Qb3+ Qe6 (21... c4 22. dxc4 Qc5+ 23. Kh1 Qxc4 24. Qxc4+ bxc4 25. Nc3 $19) 22.
    Qc3 (22. Qxe6+ Kxe6 23. g4 Ng7 24. f5+ gxf5 25. gxf5+ Kf6 $17) 22... Bf6 (22...
    c4 23. f5 Qc6 24. fxg6+ Kxg6 25. g4 $19) 23. f5 $2 (23. e5 $142 Be7 24. Rab1
    $17) 23... gxf5 $19 (23... Bxc3 $6 24. fxe6+ Kxe6 25. Nxc3 Rxd3 26. Rf3 Rxf3
    27. gxf3 $11) 24. Rxf5 (24. Qxc5 Bxa1 25. Rxa1 Rxd3 26. Qxf5+ Qxf5 27. exf5 $19
    ) 24... Qxf5 $1 (24... Qxf5 25. exf5 Bxc3 26. Nxc3 Rxd3 $19) 0-1
    
    [Event "corr DDR-BRD"]
    [Site "?"]
    [Date "1984.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Widenmann, Albert"]
    [Result "0-1"]
    [PlyCount "42"]
    [EventDate "1984.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Be7 6. c4 d5 7. Nc3 Be6 8. Qb3
    Nc6 9. Bxf6 Bxf6 10. Qxb7 (10. cxd5 Bxd5 11. Qxb7 Rb8 $11) 10... Bxc3 (10...
    Na5 $5 11. Qa6 Nxc4 $15) 11. dxc3 $11 Na5 12. Qa6 Nb3 13. Rd1 Qf6 14. Ne2 dxc4
    {(Black creates threats along the open d-file)} 15. Nd4 c5 16. Ne2 (16. Nb5
    $142 $5 $11) 16... Rfd8 $17 17. Rxd8+ Qxd8 18. f3 Qd2+ 19. Kf2 Nc1 20. Qb7 $4 (
    20. h3 $142 Nd3+ 21. Kg3 Qxe3 22. Qb7 Qg5+ 23. Kh2 $19) 20... Nd3+ 21. Kg3 Qe1#
    0-1
    
    [Event "corr ICCF EU-M-971"]
    [Site "?"]
    [Date "1993.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Sanchez de las Matas, P."]
    [Result "0-1"]
    [PlyCount "56"]
    [EventDate "1993.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Be7
    6. c4 d5 7. Nc3 Be6 8. Qb3 Nc6 9. Bxf6 Bxf6 10. Qxb7 Bxc3 11. dxc3 Na5 12. Qa6
    Nb3 13. Rd1 Qf6 14. Ne2 dxc4 15. Nd4 c5 16. Ne2 Rfd8 17. f3 $146 (17. Rxd8+
    Qxd8 18. f3 Qd2+ 19. Kf2 Nc1 20. Qb7 Nd3+ 21. Kg3 Qe1# {
    0-1 Diener,R-Widenmann,A/corr DDR-BRD 1984}) 17... Qh4+ 18. g3 Rxd1+ 19. Kxd1
    Qd8+ 20. Ke1 Qd2+ 21. Kf2 Nc1 22. Qb7 (22. g4 Nd3+ 23. Kg2 Qxe3 $19) 22... Bd5
    23. Qe7 (23. Qxd5 Qxd5 24. Nxc1 Qd2+ 25. Ne2 $19) 23... Nd3+ 24. Kg2 Qe1 25.
    Nf4 Qf2+ 26. Kh3 Nxf4+ 27. exf4 Qxf3 28. Rg1 (28. Bxc4 Qxh1 29. Bxd5 Qxd5 $19)
    28... Be6+ (28... Be6+ 29. Qxe6 fxe6 30. Bxc4 Kf8 $19) 0-1
    
    [Event "corr ICCF EU/M/1224"]
    [Site "?"]
    [Date "2000.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Baier, Guenter"]
    [Result "1/2-1/2"]
    [PlyCount "52"]
    [EventDate "2000.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Be7 $15 6. c4 d5 (6... d6 7.
    Bxf6 Bxf6 8. d4 $17) 7. Bb2 (7. d4 Nbd7 $15) 7... Nc6 (7... Be6 8. Qf3 $17) 8.
    d4 Be6 9. Nd2 dxc4 10. Nxc4 Qd5 (10... a6 11. Nf3 $15) 11. Nf3 $15 Rad8 12. Qc2
    (12. Bd3 b5 13. Ncd2 Rfe8 $15) 12... Bf5 13. Bd3 Bb4+ (13... Bxd3 14. Qxd3 b5
    15. Ncd2 $15) 14. Ke2 (14. Bc3 Bxd3 15. Qxd3 Be7 $15) 14... Bxd3+ $15 15. Qxd3
    Na5 (15... Be7 16. Rhc1 $15) 16. Nxa5 (16. Rhc1 Bd6 $15) 16... Bxa5 17. Rhc1
    Bb6 (17... Ne4 18. Kf1 $15) 18. a4 (18. Qc4 Qh5 $11) 18... Rfe8 19. a5 Bxa5 20.
    Rc5 Qxc5 21. dxc5 Rxd3 22. Kxd3 Rd8+ 23. Kc4 b6 24. Bxf6 gxf6 25. Nd4 a6 26.
    Ra2 (26. cxb6 cxb6 27. Kb3 h5 $11) 26... h5 1/2-1/2
    
    [Event "corr ICCF EU/M/1085 (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Sindern, Christoph"]
    [Result "0-1"]
    [PlyCount "60"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Be7 6. c4 Nc6 7. Bb2 d5 8.
    cxd5 Qxd5 9. Nc3 (9. Nf3 Bg4 (9... Re8 10. Nc3 (10. d4 Be6 11. Nc3 Qa5 12. Bb5
    Qb6 13. Qc2 $11 {-0.19/9}) 10... Qc5 11. Rc1 Bg4 12. Ne4 Qf5 13. Nxf6+ $11 {
    0.00/9}) (9... Be6 10. Nc3 (10. Bxf6 Bxf6 11. d4 Bf5 12. Nc3 Qa5 13. Qb3 $11 {
    -0.25/9}) 10... Qa5 11. Bb5 Qb6 12. Rb1 Bf5 13. d3 $11 {-0.09/9}) (9... Rd8 10.
    Nc3 (10. d4 Bg4 11. Bd3 Rab8 12. Nc3 Qh5 13. O-O $11 {-0.22/9}) 10... Qc5 11.
    Rc1 Bg4 12. Ne4 Qf5 13. Nxf6+ $11 {-0.19/9}) 10. d4 (10. Nc3 Qe6 11. Be2 Rad8
    12. O-O Rfe8 13. Nb5 $15 {-0.31/9}) 10... Rad8 11. Nbd2 Rfe8 12. Qb3 Qxb3 13.
    Nxb3 $15 {-0.31/9}) (9. d4 Bd6 (9... Be6 10. Nc3 (10. Nf3 Qa5+ 11. Qd2 Qh5 12.
    Nc3 Bg4 13. Be2 $11 {-0.22/9}) 10... Qa5 11. Bd3 Bd6 12. Nf3 Rfd8 13. O-O $11 {
    -0.06/9}) (9... Ne4 10. Nc3 (10. Nf3 Qa5+ 11. Nbd2 Rd8 12. Bc4 Bg4 13. Bd3 $11
    {-0.25/9}) 10... Nxc3 11. Bxc3 Bf5 12. Ne2 Rfe8 13. Nf4 $11 {0.00/9}) (9... Bg4
    10. Nc3 (10. Nf3 Rad8 11. Nbd2 Rfe8 12. h3 Be6 13. Qa4 $15 {-0.41/9}) 10... Qa5
    11. Nf3 a6 12. Be2 Be6 13. O-O $11 {-0.03/9}) 10. Nc3 (10. Nf3 a6 11. Nc3 Qh5
    12. Be2 Qg6 13. d5 $11 {-0.22/9}) 10... Qa5 11. Nf3 Re8 12. Bb5 Bg4 13. O-O $11
    {-0.12/9}) (9. Ne2 Rd8 (9... Bf5 10. d4 (10. Nbc3 Qd7 11. d4 Rad8 12. Ng3 Bg6
    13. Qa4 $15 {-0.37/9}) 10... Rfd8 11. Nbc3 Qa5 12. Ng3 Be6 13. Bd3 $11 {-0.09/9
    }) (9... Qd6 10. d4 (10. Nbc3 Rd8 11. d4 a6 12. Rc1 b5 13. Nf4 $11 {-0.25/9})
    10... a6 11. Qc2 Qd5 12. Nf4 Qd8 13. Bd3 $11 {-0.19/9}) (9... Qg5 10. d4 (10.
    d3 Rd8 11. Nd2 Rxd3 12. Nd4 Bg4 13. Qa4 $15 {-0.59/9}) 10... Re8 11. Nbc3 Bg4
    12. Qb3 Bd7 13. Ng3 $15 {-0.31/9}) 10. Nbc3 (10. d4 Qb5 11. Bc3 Bd6 12. Nd2 Qd5
    13. Ng3 $15 {-0.47/9}) 10... Qa5 11. Qa4 Qf5 12. Ng3 Qg6 13. Nce4 $15 {-0.34/9}
    ) (9. d3 Be6 (9... Bf5 10. e4 (10. Nc3 Qd6 11. Nf3 Rad8 12. d4 Rfe8 13. Bd3 $15
    {-0.28/9}) 10... Rfe8 11. Be2 Qb5 12. Qc2 Be6 13. Nf3 $11 {-0.22/9}) (9... Rd8
    10. Nf3 (10. Nc3 Qa5 11. Nf3 Rd6 12. Qa4 Qxa4 13. Nxa4 $11 {-0.06/9}) 10... Bf5
    11. Nc3 Qe6 12. Be2 Qd6 13. Nb5 $11 {0.00/9}) (9... Re8 10. Nf3 (10. Nc3 Qf5
    11. Nf3 Be6 12. Be2 Bd6 13. O-O $15 {-0.34/9}) 10... Bf5 11. Be2 Rad8 12. e4
    Qb5 13. Qc2 $11 {0.00/9}) 10. Nf3 (10. Ne2 Qb5 11. Qd2 Qg5 12. Nf4 Bg4 13. h4
    $15 {-0.41/9}) 10... Rfd8 11. Be2 Re8 12. O-O Qf5 13. Nbd2 $11 {-0.25/9}) 9...
    Qf5 (9... Qd6 10. Nf3 (10. d4 Be6 11. Nf3 Rfe8 12. Ng5 Bd5 13. Qd3 $11 {-0.12/9
    }) 10... Be6 11. d4 Rad8 12. Bd3 h6 13. O-O $11 {-0.06/9}) (9... Qc5 10. Rc1 (
    10. Nf3 Rd8 11. d4 Qb6 12. Rb1 Qa5 13. Qb3 $11 {-0.06/9}) 10... Qd6 11. d4 Bg4
    12. Nf3 Rad8 13. Bd3 $11 {0.00/9}) (9... Qd8 10. d4 (10. Nf3 Be6 11. Bb5 Qd6
    12. d4 a6 13. Bd3 $11 {-0.12/9}) 10... Be6 11. Bd3 Na5 12. Nf3 c5 13. Qc2 $11 {
    -0.03/9}) (9... Qa5 10. Nf3 (10. Be2 Qg5 11. Nf3 Qg6 12. Nh4 Qh6 13. Nf3 $11 {
    -0.25/9}) 10... a6 11. Be2 Be6 12. O-O Rfe8 13. d4 $11 {-0.22/9}) 10. Nf3 (10.
    d4 Be6 11. Bd3 Qa5 12. Nf3 Rfe8 13. O-O $11 {0.00/9}) 10... Rd8 (10... Qg6 11.
    d4 $11 Rd8 12. d5 Nb8 13. Ne5 $11 {-0.06/9}) (10... a6 11. d4 Be6 12. Bd3 Qg4
    13. O-O $11 {0.00/9}) 11. d4 $11 Qh5 (11... Rb8 12. Bd3 Qh5 13. O-O $11 {
    -0.12/9}) 12. Be2 (12. Ne5 Qxd1+ 13. Rxd1 Nxe5 14. dxe5 Rxd1+ 15. Kxd1 Ng4 $15)
    12... Qg6 $15 13. g3 (13. Bc4 $15 {-0.28/9}) 13... Bh3 (13... Bg4 14. h3 Qh6
    15. d5 $15) 14. Nh4 (14. Qb3 b6 $11) 14... Qg5 $15 15. Bf3 Qa5 16. Qc2 Rd7 (
    16... Rd6 17. Qa4 $15) 17. Bc1 (17. Qa4 Rd6 18. Qb5 $11) 17... Rxd4 (17... Nb4
    $5 18. Qd2 c5 $17) 18. exd4 $11 Nxd4 19. Qd3 Nxf3+ 20. Nxf3 (20. Qxf3 Bg4 21.
    Qxb7 Qxc3+ 22. Kf1 Bh3+ (22... Qxa1 23. Qxa8+ Bf8 24. Kg2 $14) 23. Ke2 Re8 $19
    (23... Qxa1 $6 24. Qxa8+ Bf8 25. Rd1 $15 (25. Qxa7 $4 Qa2+ 26. Bd2 Qc4+ 27. Kd1
    Qb3+ 28. Ke2 Qb5+ 29. Kd1 Qb1+ 30. Bc1 Qd3+ 31. Bd2 Ne4 $19))) 20... Rd8 21.
    Nd4 c5 22. Nb3 Rxd3 23. Nxa5 Rxc3 24. Rg1 Ng4 25. Bd2 Rf3 26. Be3 Nxe3 27. fxe3
    (27. Ke2 Bg4 28. h3 Bh5 $19) 27... Bg4 28. Ra2 (28. Nxb7 $142 Rxe3+ 29. Kd2
    Re2+ 30. Kd3 Rxh2 31. Rae1 Bf5+ 32. Ke3 $19) 28... Bf6 29. Nc4 b5 30. Nd6 Rxe3+
    (30... Rxe3+ 31. Kf1 Bh3+ 32. Rgg2 a6 $19) 0-1
    
    [Event "corr ICCF EU-M-971"]
    [Site "?"]
    [Date "1993.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Rausch, Wilfried"]
    [Result "1-0"]
    [PlyCount "97"]
    [EventDate "1993.??.??"]
    
    1. b4 e5 $15 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Be7 6. Nf3 c5 7. c4 Nc6
    $15 8. Bb2 d5 9. cxd5 Nxd5 10. Qc2 Re8 (10... Bf6 11. Nc3 $15) 11. Bd3 $11 Kh8
    (11... g6 12. Be4 $11) 12. Be4 (12. Bxh7 Bf6 13. Nc3 Nxc3 14. Bxc3 Nd4 15. Bxd4
    cxd4 $15) 12... f5 (12... h6 13. O-O $11) 13. Bxd5 (13. Bxf5 $5 Bf6 14. Bxc8
    Rxc8 15. O-O $14) 13... Qxd5 $15 14. Nc3 Qd7 (14... Qd6 15. Rd1 $15) 15. Ne2 b6
    16. h4 (16. d4 Bb7 $15) 16... Ba6 17. Nf4 (17. d4 Rac8 18. dxc5 Bxc5 $15) 17...
    Bd6 $17 18. Nh5 Be5 (18... Ne5 19. Nxe5 Bxe5 20. Bxe5 Rxe5 21. Qc3 $17) 19. d4
    (19. Nxe5 $142 Nxe5 20. Bxe5 Rxe5 21. Qc3 $17) 19... Nxd4 20. O-O-O (20. exd4
    Bxd4+ {Discovered attack}) 20... Qf7 (20... Rac8 21. Kb1 Qf7 22. Nxe5 Rxe5 23.
    exd4 cxd4 24. Qa4 $14) 21. exd4 cxd4 22. Nxe5 Rxe5 23. Bxd4 Re2 {
    Threatening mate: Rxc2} 24. Bxg7+ (24. Qc6 $142 $5 Bb7 25. Nxg7 $14) 24... Kg8
    $11 25. Rd2 Qxh5 26. Bc3 (26. Rxe2 Bxe2 27. Bb2 Re8 $11) 26... Re4 (26... Rc8
    27. Rxe2 Bxe2 28. Re1 $11) 27. Rd7 Rc8 (27... Bc4 $11) 28. Kb1 (28. Rxa7 Bc4
    $14) 28... Qe2 (28... Re2 29. Qd1 Rxc3 30. Qd5+ Kf8 31. Qd6+ Kg8 32. Rd8+ Re8
    33. Qe6+ Kf8 34. Rxe8+ Qxe8 35. Qf6+ Kg8 36. Qxc3 $18) 29. Rd2 (29. Qxe2 $142
    Bxe2 30. Bb2 $14) 29... Qb5+ $15 30. Ka1 Qc5 31. Qa2+ Bc4 32. Qb2 Rce8 (32...
    Be6 33. Bb4 Qc7 34. Qf6 $15) 33. Bh8 (33. Rd7 Re2 34. Rg7+ Kf8 $17) 33... Qf8 (
    33... Qc7 34. Qc3 $15) 34. Qc3 b5 (34... Rc8 35. Rhd1 $15) 35. Rd7 (35. Rhd1
    Rxh4 36. Rd7 Rg4 $15) 35... Bf7 (35... Rg4 36. Rhd1 $15) 36. Bf6 (36. Bd4 Rc8
    37. Qb2 Qe8 $15) 36... a5 {Black prepares the advance b4} (36... b4 37. axb4
    Rxb4 38. Rxa7 $15) 37. Rhd1 $11 (37. Qxa5 $4 Ra4 38. Qxa4 bxa4 $19) 37... b4
    38. Qg3+ (38. Qf3 $142 $5 Qc5 39. h5 $15) 38... Rg4 $17 39. Qc7 $2 (39. Qd6 $5
    Be6 40. Qxf8+ Rxf8 41. Be7 Bxd7 42. Bxf8 Kxf8 43. Rxd7 Rxg2 44. f3 $17) 39...
    Be6 $19 (39... bxa3 $6 40. Be5 $17) 40. Be5 Bxd7 41. Rxd7 Rc8 (41... Rxh4 $4
    42. Rg7+ Kh8 43. Rg6+ Rxe5 44. Qxe5+ Qg7 45. Qxg7#) 42. Qb7 {
    The mate threat is Qd5} Rc5 (42... Rc1+ 43. Ka2 b3+ 44. Qxb3+ Rgc4 45. f4 R1c2+
    46. Bb2 Rxb2+ 47. Kxb2 Qf6+ 48. Kb1 $18) 43. f4 (43. Bd6 Qf6+ 44. Kb1 Rc1+ 45.
    Kxc1 Qa1+ 46. Kc2 Qa2+ 47. Kd3 Qc4+ 48. Ke3 Re4+ 49. Qxe4 Qxe4+ 50. Kd2 Qd5+
    51. Kc2 Qc6+ 52. Bc5 Qxc5+ 53. Kb1 $19) 43... Rg3 (43... Rxe5 44. fxe5 Rf4 45.
    Qd5+ Kh8 46. Rd8 $18) 44. Bd4 a4 45. axb4 Ra3+ 46. Kb1 {
    Do you see the mate threat?} Rb3+ 47. Bb2 Rxb2+ 48. Kxb2 Rc8 49. Ka3 (49. Ka3
    Rc3+ 50. Kxa4 $18) 1-0
    
    [Event "corr SOK-91-74"]
    [Site "?"]
    [Date "1991.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Grehl, Siegfried"]
    [Result "0-1"]
    [PlyCount "56"]
    [EventDate "1991.??.??"]
    
    1. b4 e5 $15 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Be7 6. Bc4 d5 7. Ba2 (7.
    Be2 Nc6 8. Bxf6 Bxf6 $15 (8... gxf6 $143 9. d4 $14)) 7... Nc6 (7... Nbd7 8. Bf4
    $17) 8. Bb2 $15 Bg4 9. f3 Bh5 10. Ne2 Re8 (10... Bg6 11. O-O $15) 11. Kf2 (11.
    Nf4 $5 $11) 11... Bc5 $17 12. d4 Ne4+ $4 (12... Bd6 $142 $17) 13. fxe4 $16 Qf6+
    14. Kg1 Bxe2 15. Qxe2 (15. dxc5 $4 Qxb2 (15... Bxd1 16. Bxf6 gxf6 17. exd5 Rxe3
    18. Kf2 Re2+ 19. Kg3 Bxc2 20. dxc6 $18) 16. Qxe2 Qxa1 $19) 15... Bxd4 $4 (15...
    Nxd4 16. Qd3 Ne2+ 17. Qxe2 Qxb2 $19) 16. c3 (16. exd4 Nxd4 17. Qd1 Ne2+ 18.
    Qxe2 Qxb2 $11) 16... Bxe3+ $2 (16... Bc5 17. Bxd5 Qf4 18. Qf3 Bxe3+ 19. Kf1 $18
    ) 17. Qxe3 Rxe4 {Black gets strong play along the open e-file} 18. Qf2 $4 (18.
    Qg3 Rae8 19. Nd2 Re2 $18) 18... Rf4 $4 (18... Qe5 $142 19. Nd2 Re2 $11) 19. Qe2
    $18 Ne5 (19... Re4 20. Qf1 Qe5 21. Bxd5 $19) 20. Bc1 Re4 21. Qf2 Qe6 22. h3 $4
    (22. Bd2 $142 $18) 22... Nd3 $11 23. Qf3 (23. Qg3 Nxc1 24. Kh2 $17) 23... Nxc1
    $15 24. Kh2 Ne2 25. Rd1 Qe5+ (25... c6 26. Nd2 Re3 27. Qf2 $17) 26. g3 Nxg3 27.
    Kg2 $4 (27. Qxg3 {A deflection} Re2+) 27... Re2+ $19 28. Kg1 Nf5 (28... Nf5 29.
    Qxe2 Qxe2 $19) 0-1
    
    [Event "corr SOK-91-74"]
    [Site "?"]
    [Date "1991.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Leisebein, Peter"]
    [Result "0-1"]
    [PlyCount "66"]
    [EventDate "1991.??.??"]
    
    1. b4 e5 $15 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. a3 Be7 6. Bc4 Nc6 7. Bb2 d5
    8. Ba2 Bg4 9. f3 Be6 10. Ne2 Qd6 11. d4 (11. Nbc3 Rfe8 $15) 11... Na5 12. Nd2
    c5 (12... Qc6 13. O-O $17) 13. O-O Rac8 14. Rb1 b6 15. Nc3 (15. dxc5 Qxc5 16.
    Nd4 Bd6 $15) 15... Qd7 16. Ne2 Rfe8 17. Nf4 cxd4 18. exd4 (18. Bxd4 Bf5 19. Nd3
    Bxa3 20. Bxf6 gxf6 $17) 18... Bf5 19. Nd3 Qa4 20. Bb3 Nxb3 21. Nxb3 Bd6 (21...
    Bxa3 $143 22. Ra1 Qc6 23. Bxa3 Qxc2 24. Qxc2 Rxc2 25. Ne5 $14) 22. Rf2 Qc4 (
    22... Bxa3 23. Ra1 $16) 23. Ne1 (23. Ne5 Qc7 24. Rc1 b5 $17) 23... Qc7 $19 24.
    g3 h5 (24... a6 25. Nd3 $19) 25. Qd2 h4 26. Qg5 hxg3 27. hxg3 Bg6 28. Rg2 Qe7
    29. Qh4 (29. Kh1 Bxa3 30. Bxa3 Qxa3 $19) 29... Qe3+ (29... Bxa3 $6 30. Bxa3
    Qxa3 31. Rh2 $17) 30. Kh1 Bxc2 $1 31. Nxc2 (31. Rxc2 Qxe1+ {
    Annihilates a defender: e1}) 31... Qxb3 32. Ne1 Re6 33. Rh2 {
    Do you see the mate threat?} Rxe1+ $1 (33... Rxe1+ 34. Rxe1 Qxf3+ 35. Kg1 Qxg3+
    36. Qxg3 Bxg3 $19) 0-1
    
    [Event "corr ICCF"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Nunez Casado, Franco"]
    [Result "1-0"]
    [PlyCount "45"]
    [EventDate "1985.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. c4 d6 6. Bb2 Nc6 7. a3 Ba5 8. Nf3
    Ne4 (8... Be6 9. Be2 $15) 9. Qc2 (9. Be2 d5 $15) 9... Ng5 (9... Re8 10. Bd3 Bf5
    11. O-O $15) 10. Be2 $11 Nxf3+ (10... Bg4 11. Nxg5 Qxg5 12. Bxg4 Qxg4 13. O-O
    $11) 11. Bxf3 Bd7 12. Be4 h6 (12... Qh4 13. O-O $11) 13. O-O $14 Rb8 14. Nc3
    Ne5 15. Ne2 (15. d3 Qh4 $14) 15... Qg5 (15... Be6 $5 16. d3 f5 $11) 16. f4 $16
    Qg4 17. Rae1 (17. fxe5 $142 Qxe2 18. Rf2 $16) 17... f5 $2 (17... Nc6 $142 $14)
    18. Bd5+ $18 (18. fxe5 $6 Qxe4 19. Qxe4 fxe4 $11) 18... Nf7 19. Rf3 Qh4 20. Rg3
    g5 21. fxg5 (21. Ba1 Kh7 22. Qb2 $18) 21... hxg5 $4 (21... c6 22. gxh6+ Kh7 $18
    ) 22. Rf1 (22. Bf6 $142 $5 Kh7 23. Rh3 Qxh3 24. gxh3 c6 25. Bxf7 Rxf7 26. Bxg5
    Rg8 $18) 22... g4 (22... Bxd2 23. Qxd2 g4 $18) 23. Rf4 (23. Rf4 Qg5 24. Nd4 $18
    ) (23. Rxf5 Ba4 24. Qe4 Bc3 25. Qxg4+ Qxg4 26. Rxg4+ Kh7 27. Rh5+ Nh6 28. Be4+
    Rf5 29. Bxf5+ Kh8 30. Bxc3#) 1-0
    
    [Event "corr SOK-89-36"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Roscher"]
    [Result "1-0"]
    [PlyCount "17"]
    [EventDate "1989.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. Qf3 Nc6 6. Bxf6 $14 gxf6 (6...
    Qxf6 7. Qxf6 gxf6 8. Nf3 $14) 7. a3 $16 Ba5 8. Qh5 d5 9. Bd3 (9. Bd3 f5 10.
    Bxf5 Bxf5 11. Qxf5 $16) 1-0
    
    [Event "corr ICCF"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Grund, Karl"]
    [Result "1-0"]
    [PlyCount "77"]
    [EventDate "1988.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. Qf3 Be7 6. Bb2 (6. d4 Nc6 $15)
    6... d5 7. h3 Nc6 8. d4 Ne4 9. Bd3 f5 (9... Nb4 10. Ba3 $17) 10. a3 $15 Be6 (
    10... Ng5 11. Qd1 $15) 11. Ne2 g5 (11... Qd6 12. Nf4 $15) 12. g3 (12. Bc1 Bd6
    13. Qh5 Qe8 14. Qxe8 Raxe8 $15) 12... Qd7 13. Qg2 Bf6 14. f3 (14. Ra2 Rae8 $15)
    14... Nd6 (14... Nc5 15. f4 $15) 15. Nd2 Qg7 (15... Rae8 16. Nb3 $11) 16. O-O-O
    (16. h4 g4 $11) 16... Na5 (16... b5 17. h4 b4 18. hxg5 Bxg5 19. Qf2 $11) 17.
    Rdg1 (17. h4 g4 $11) 17... Nac4 18. Qf2 (18. Bxc4 dxc4 19. f4 Rae8 $15) 18...
    Nxb2 $15 19. Kxb2 Nc4+ (19... c5 20. g4 Rf7 21. h4 cxd4 22. exd4 $14 (22. Nxd4
    $143 fxg4 23. c3 Bf5 24. Bxf5 Nxf5 $11)) 20. Bxc4 $11 dxc4 21. f4 (21. h4 g4
    $11) 21... Bd5 22. Rh2 Qe7 (22... c5 23. g4 cxd4 24. exd4 $15) 23. g4 Rae8 (
    23... fxg4 24. Rxg4 Rae8 25. e4 $11) 24. fxg5 Bxg5 25. gxf5 Kh8 26. Nf1 Bxe3 (
    26... Be4 27. Nfg3 Bxc2 28. e4 $11 (28. Kxc2 Bxe3 29. Qf1 Qxa3 $19 (29... Bxg1
    $6 30. Qxg1 Qxa3 31. Rg2 $17))) 27. Nxe3 Qxe3 28. Nc3 (28. Qg3 Rg8 29. Qxe3
    Rxe3 30. Rxg8+ Kxg8 $11) 28... Qxf2 (28... Bf3 $5 $11) 29. Rxf2 $14 Be6 (29...
    c6 30. f6 $14) 30. Rgf1 (30. Re1 Bf7 31. Rxe8 Rxe8 $16) 30... Bd7 31. h4 c6 (
    31... Kg7 32. f6+ Kf7 33. Rg1 $16) 32. f6 Bh3 (32... b6 33. Re2 $16) 33. Rg1 h5
    (33... Rd8 34. Ne2 $16) 34. Rg5 Bg4 35. Re5 Rd8 36. Rf4 (36. Re7 b5 $16) 36...
    Rd6 37. Ne4 Re6 $2 (37... Rxd4 $5 38. Re7 b5 $16) 38. a4 (38. Kc3 b5 $18) 38...
    a6 (38... b5 39. axb5 Rxe5 40. dxe5 cxb5 41. Kc3 $18) 39. a5 (39. a5 c3+ 40.
    Kxc3 $18) 1-0
    
    [Event "corr ICCF T625/19-Semi"]
    [Site "?"]
    [Date "1979.??.??"]
    [Round "?"]
    [White "Nunez, Casado Francisco"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "50"]
    [EventDate "1979.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. Nf3 d5 6.
    c3 Bc5 (6... Be7 7. Bb5 $15) 7. d4 $11 Bb6 8. Bb5 a6 9. Ba4 (9. Bd3 Bg4 $11)
    9... Bg4 10. Nbd2 (10. h3 Be6 $11) 10... Ba5 $15 11. Qc2 Bxf3 12. gxf3 b5 13.
    Bb3 Nh5 $4 (13... Nbd7 14. Bf4 $15) 14. O-O-O (14. Qf5 $142 $5 Bxc3 15. Rc1
    Bxd2+ 16. Kxd2 $18) 14... Nc6 $11 15. f4 (15. Qf5 Nxe5 16. dxe5 g6 $11) 15...
    Qd7 (15... f6 16. e4 Ne7 (16... Nxe5 $6 17. fxe5 Nf4 18. Bxd5+ Nxd5 19. exd5
    $11) 17. exd5 Kh8 $19 (17... fxe5 $6 18. d6+ Kh8 19. dxe7 Qxe7 20. fxe5 $11))
    16. Nf3 $2 (16. e4 $142 Nxe5 17. fxe5 $15) 16... f6 $19 (16... Nxe5 $6 17. Nxe5
    Qd6 18. Rhg1 $15) 17. e4 fxe5 (17... Ne7 18. exd5 Kh8 19. Rhe1 $19) 18. exd5 (
    18. Bxd5+ $142 $5 Kh8 19. Nxe5 Nxe5 20. Bxa8 $17) 18... Nd8 19. dxe5 Qg4 (19...
    Nxf4 20. Ng5 g6 21. Rhe1 $19) 20. d6+ (20. Qe4 Nxf4 (20... Bxc3 $143 21. d6+
    Kh8 22. Qxa8 Qxf4+ 23. Kb1 $14) 21. d6+ Nde6 $17) 20... Kh8 $19 21. Rd4 $2 (21.
    Qe4 $142 Qxf4+ 22. Nd2 $19) 21... Qxf3 22. Bd5 Qxc3 23. Qxc3 Bxc3 24. Rd3 (24.
    Re4 c6 25. Bb3 Nxf4 $19) 24... Nxf4 25. Rf3 (25. Bxa8 Nxd3+ 26. Kc2 Bxe5 27.
    Kxd3 Bxd6 $19) 25... c6 (25... c6 26. Rxc3 Ne2+ 27. Kc2 Nxc3 28. Kxc3 cxd5 $19)
    0-1
    
    [Event "corr ICCF T625/19-S"]
    [Site "?"]
    [Date "1975.??.??"]
    [Round "?"]
    [White "Palik, Franciszek"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "42"]
    [EventDate "1975.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. Nf3 d5 6.
    Be2 Nc6 7. Bg3 Ne4 8. c3 Nxg3 9. fxg3 Bc5 10. O-O Re8 11. Nd4 (11. Bd3 Ne5 12.
    Nxe5 Rxe5 13. Bxh7+ Kxh7 $11) 11... Qe7 (11... Nxd4 12. cxd4 Bd6 13. Nc3 $15)
    12. Bf3 Qe5 13. Nxc6 bxc6 14. Qa4 Qe6 15. Na3 Rb8 (15... a5 16. Bh5 Re7 17. Be2
    $11) 16. Rab1 (16. Nc2 Bd7 $11) 16... Rxb1 $15 17. Rxb1 $4 (17. Nxb1 $142 Re7
    18. Be2 $15) 17... Bxe3+ $1 $19 18. dxe3 (18. Kf1 Bxd2 19. c4 $19) 18... Qxe3+
    19. Kf1 Bf5 20. Rd1 (20. Qd4 Bd3+ 21. Be2 Qxe2+ 22. Kg1 Bxb1 23. h3 Qxa2 24.
    Nxb1 Qxb1+ 25. Kh2 $19) 20... Bd3+ 21. Rxd3 (21. Be2 Bxe2+ 22. Ke1 Bd3#) 21...
    Qe1# 0-1
    
    [Event "corr ICCF EU/M/Gr/627 (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Szklarczyk, J."]
    [Result "0-1"]
    [PlyCount "50"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 d5 5. a3 Ba5 6. c4 O-O 7. cxd5 Nxd5 8.
    Bc4 Nxe3 $1 9. Bxf7+ $4 (9. fxe3 Qh4+ 10. g3 Qxc4 11. Bc3 Bb6 12. Qe2 Qd5 13.
    Qf3 Be6 $19 {-1.84/10}) 9... Rxf7 10. fxe3 Qh4+ 11. Bg3 Qf6 12. Nf3 Qxa1 13.
    Ng5 (13. Qb3 Be6 14. Qxb7 Qa2 $19) 13... Qa2 (13... Rf5 $142 14. Qb3+ Kh8 15.
    Nf3 $19) 14. Nxf7 Qxf7 (14... Kxf7 15. O-O+ Ke7 16. Bh4+ Kd6 17. Bg3+ Kc6 18.
    Qa4+ Kb6 19. Bxc7+ Kxc7 20. Qxa5+ b6 21. Qe5+ Kb7 22. Qxg7+ Bd7 23. Qxh7 $11)
    15. Rf1 Qe6 16. Qf3 Nd7 17. Be5 c6 18. Nc3 Bxc3 (18... b6 19. Qf5 Qe8 20. Bd4
    $19) 19. Bxc3 b6 20. Qg3 Qg6 (20... Qe7 $142 21. Qc7 Rb8 $19 (21... Qxa3 $2 22.
    Qxc6 Qc1+ 23. Kf2 Qxf1+ 24. Kxf1 Ba6+ 25. Kf2 Rf8+ 26. Kg3 $18)) 21. Qh4 $4 (
    21. Qxg6 hxg6 22. d3 $19) 21... Ba6 22. Rf4 Qb1+ (22... Nc5 23. Kf2 Nd3+ 24.
    Kg1 Nxf4 25. exf4 Qb1+ 26. Kf2 $19) 23. Kf2 Qf1+ (23... Nc5 24. Qe7 Qg6 25. Rf3
    $19) 24. Kg3 Qe1+ 25. Kh3 Qxh4+ (25... Qxh4+ 26. Kxh4 Re8 $19) 0-1
    
    [Event "corr ICCF WT-M-663"]
    [Site "?"]
    [Date "1995.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Thal, Olaf"]
    [Result "1-0"]
    [PlyCount "63"]
    [EventDate "1995.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 Nc6 5. Bb2 O-O 6. a3 $11 Ba5 7. Qf3 d5 (
    7... Ne8 8. Bc4 $11) 8. Bxf6 Qxf6 9. Qxf6 gxf6 10. Bb5 (10. Ne2 Rd8 $11) 10...
    Ne5 $14 11. Ne2 (11. f4 Ng4 12. c3 a6 $14) 11... c6 $11 12. Ba4 b5 13. Bb3 Be6
    (13... Re8 14. f4 Ng6 15. a4 Rxe3 16. Kf2 $15) 14. Nbc3 (14. Nd4 Rfc8 $11)
    14... b4 (14... Rfe8 15. d4 Ng6 16. O-O $11) 15. axb4 $14 Bxb4 16. f4 Nd7 17.
    Ra6 Rfc8 18. Na2 Bf8 (18... Bd6 19. Nd4 Nb8 20. Ra4 $11) 19. Nd4 Nb8 (19... c5
    20. f5 cxd4 21. fxe6 $11) 20. Ra5 c5 21. Nxe6 fxe6 22. f5 c4 23. Ba4 Kf7 24.
    Rf1 Rc5 25. Rxc5 Bxc5 26. Nc3 a6 (26... Ke7 27. fxe6 Kxe6 28. e4 dxe4 29. Nxe4
    $14) 27. Rf4 (27. e4 dxe4 28. Nxe4 Be7 $11) 27... Bb4 28. Rh4 (28. fxe6+ Kxe6
    29. Rxf6+ Kxf6 30. Nxd5+ Ke5 31. Nxb4 a5 $11) 28... Bxc3 29. dxc3 exf5 (29...
    h6 30. fxe6+ Kxe6 31. e4 $14) 30. Rxh7+ Ke6 (30... Kg8 31. Rb7 Kf8 32. h4 $16)
    31. Rh8 Kd6 32. h4 (32. h4 Ke7 33. Bc6 Nxc6 34. Rxa8 $18) 1-0
    
    [Event "corr ICCF WT-M"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Koskinen, Erkki"]
    [Result "0-1"]
    [PlyCount "100"]
    [EventDate "1989.??.??"]
    
    1. b4 e5 $15 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 Nc6 5. Bb2 O-O 6. a3 Ba5 7. Qf3 $11
    d5 8. Bxf6 Qxf6 9. Qxf6 gxf6 10. Bb5 Ne7 11. Ne2 c6 12. Bd3 Ng6 13. f4 f5 (
    13... Re8 14. O-O $11) 14. h4 (14. O-O Re8 $14) 14... c5 15. c3 Be6 16. Kf2 (
    16. h5 Ne7 $11) 16... Rfd8 17. a4 (17. h5 Ne7 $11) 17... Bc7 (17... c4 18. Bc2
    $15) 18. Na3 a6 19. h5 Ne7 20. h6 f6 (20... b6 21. Rhb1 $11) 21. Ng3 {
    Exerts pressure on the isolated pawn} Bd7 22. Bc2 Kf7 23. Rh5 {
    The pressure on the isolated pawn grows} Kg6 24. Rah1 b5 25. R1h4 Kf7 (25...
    bxa4 $2 26. Rg4+ Kf7 27. Rg7+ Ke8 28. Rxh7 $18) 26. Nxf5 (26. Bxf5 $143 Nxf5
    27. Nxf5 b4 28. cxb4 cxb4 $17) 26... Nxf5 27. Bxf5 Bxf5 28. Rxf5 b4 29. cxb4
    cxb4 30. Nb1 a5 (30... Rab8 31. Ke2 $11) 31. Rg4 Ke6 32. Rh5 Bb6 33. f5+ Kd6
    34. Ke2 Ra7 35. d4 (35. Rg7 Rb8 $11) 35... Rc8 36. Kd2 Rac7 37. Rh1 Rc2+ 38.
    Kd3 Ra2 39. Rg7 Rc7 40. g4 (40. Rg8 Rxa4 41. Rd8+ Rd7 $11) 40... Rcc2 (40...
    Rxa4 41. g5 fxg5 42. Rxg5 $17) 41. Rd1 (41. Rf7 Bc7 42. Rxf6+ Ke7 43. Re6+ Kd7
    $16) 41... Rc7 42. Rd2 (42. Rg8 Rxa4 43. Rd8+ Rd7 $14) 42... Ra1 (42... Rxa4 $5
    43. Rc2 Rd7 $15) 43. Rb2 $11 Rc1 44. Nd2 (44. Rf7 $5 Bd8 45. Nd2 $14) 44...
    Ra3+ 45. Ke2 Rc7 (45... Rcc3 46. Nf1 (46. Rxh7 Rxe3+ 47. Kd1 Bxd4 $19) 46...
    Rc7 47. Rg8 $15) 46. g5 (46. Rxc7 Bxc7 47. Nb3 Bb6 $11) 46... fxg5 47. Rg6+ $4
    (47. f6 $142 Rcc3 48. Nf1 $11) 47... hxg6 $19 48. fxg6 Re7 (48... Rxa4 49. h7
    Bxd4 50. exd4 Re7+ 51. Kf2 $18) 49. Kf2 (49. Nb3 $19) 49... Rexe3 (49... Rxa4
    50. h7 Bxd4 51. exd4 $18) 50. Nb3 (50. Nb1 Bxd4 51. Rd2 Red3+ 52. Ke1 Rxd2 53.
    Nxa3 bxa3 54. Kxd2 $19) 50... Raxb3 (50... Raxb3 51. Rd2 Red3 52. Rxd3 Rxd3 $19
    ) (50... Rexb3 51. Rxb3 Rxb3 $19) 0-1
    
    [Event "corr ICCF EU-M-1066"]
    [Site "?"]
    [Date "1994.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Hustert, Dirk"]
    [Result "1-0"]
    [PlyCount "77"]
    [EventDate "1994.??.??"]
    
    1. b4 e5 $15 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 Nc6 5. Bb2 O-O 6. a3 Ba5 7. Qf3 d5 (
    7... Ne8 8. Bd3 $11) 8. Bxf6 Qxf6 9. Qxf6 gxf6 10. Ne2 Re8 11. c3 Ne5 12. Nf4
    c6 13. Nh5 Bd8 14. f4 (14. d4 Bg4 15. Be2 Bxh5 16. Bxh5 Nd3+ 17. Kf1 f5 $14)
    14... Ng6 $11 15. Kf2 (15. Be2 b5 $11) 15... Bf5 (15... Be7 16. Ng3 $11) 16.
    Be2 Kf8 (16... Be7 17. Ng3 Bd7 18. c4 $11) 17. d4 (17. Ng3 Bc2 $14) 17... Be4 (
    17... b5 18. Ng3 Bd7 19. Rf1 $11) 18. Nd2 $14 f5 19. Rhc1 (19. Nxe4 fxe4 20. f5
    Nh4 $14) 19... h6 (19... b5 20. Nxe4 fxe4 21. Bg4 Bh4+ 22. g3 $18) 20. c4 $14
    dxc4 21. Nxc4 (21. Nxe4 fxe4 22. Bxc4 Be7 $14) 21... Be7 (21... Bh4+ 22. g3 Be7
    23. Ne5 $14) 22. Ng3 $14 Bh4 (22... c5 23. Nxe4 fxe4 24. f5 $11) 23. Nd6 {
    Attacking the isolated pawn on f5} Re7 24. Kg1 (24. Ndxe4 $142 $5 fxe4 25. f5
    $14) 24... Bxg3 $11 25. hxg3 Rd8 26. Nc4 (26. Nxe4 fxe4 27. f5 Nh8 $11) 26...
    f6 (26... b6 27. Nd2 $11) 27. Kf2 $11 Kg7 (27... a6 28. Rh1 Kg7 29. Rac1 $11)
    28. Rh1 (28. Nd2 Bd5 $11) 28... Rc7 (28... c5 29. dxc5 Rd5 30. Rh5 $16) 29. Nd2
    (29. Rad1 Rd5 $11) 29... Ne7 (29... c5 $5 30. Rac1 b6 $11) 30. Rh5 $14 b6 31.
    Rah1 Rh8 32. g4 c5 33. dxc5 (33. gxf5 Bxf5 34. d5 Bg6 $15) 33... Rxc5 $14 34.
    Nxe4 fxe4 35. Rxc5 bxc5 36. Rc1 Rc8 37. Rc4 f5 (37... Rc7 $5 $16) 38. gxf5 $18
    Nxf5 39. Rxe4 (39. Rxe4 Rb8 40. g4 $18) 1-0
    
    [Event "corr ICCF EU-M-849"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Colucci, Pasquale"]
    [Result "1-0"]
    [PlyCount "49"]
    [EventDate "1985.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 Nc6 5. Bb2 O-O 6. a3 Ba5 7. Qf3 $11 d6 (
    7... Ne8 8. Bc4 $11) 8. Bxf6 $14 Qxf6 9. Qxf6 gxf6 10. Bb5 Bf5 11. Ra2 (11. c3
    Ne5 $11) 11... Ne5 $11 12. Ne2 (12. Be2 Be6 13. Rb2 Rfb8 $14) 12... Be6 (12...
    c6 13. Ba4 $11) 13. Rb2 a6 14. Ba4 Nc4 (14... c5 15. Bb3 (15. Rxb7 $143 Bd5 16.
    Re7 Bxg2 $19) 15... c4 16. Ba2 $11) 15. Rxb7 Bb6 (15... Rfb8 16. Rxb8+ Rxb8 17.
    Bb3 $14) 16. Bc6 $14 Rad8 17. Nd4 (17. d4 Na5 18. d5 Bf5 $14) 17... Na5 $11 18.
    Rxb6 (18. Nxe6 $143 fxe6 19. Bf3 Nxb7 20. Bxb7 Rb8 21. Bxa6 Bxe3 $17) 18...
    cxb6 19. Be4 (19. Nc3 b5 $11) 19... Rfe8 20. Nc3 d5 21. Bd3 b5 22. Ke2 (22. a4
    bxa4 23. Bxa6 a3 $15) 22... Nc4 23. Bxc4 dxc4 24. f3 (24. d3 Bg4+ 25. Kd2 Kf8
    $11) 24... Rd6 $4 (24... f5 $142 $11) 25. Ne4 $18 (25. Ne4 Red8 26. Nxd6 Rxd6
    27. g4 $18) 1-0
    
    [Event "corr ICCF EU/M/Gr/849 (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Broecer, C."]
    [Result "0-1"]
    [PlyCount "34"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 Nc6 5. Bb2 O-O 6. a3 Be7 7. c4 d5 8.
    cxd5 Nxd5 9. Nc3 Bf5 10. Qf3 Be6 11. Ne4 (11. Nxd5 Bxd5 12. Qg4 Bf6 13. Bxf6
    Qxf6 $15) 11... f5 $17 12. Qg3 {Do you see the mate threat?} Rf7 13. Nc3 f4 14.
    exf4 Nxf4 15. Ne4 Qd5 (15... Bd5 16. Qe3 Bxe4 17. Qxe4 $17) 16. Qe3 (16. Nc3
    Qf5 17. d3 Qa5 $19) 16... Na5 $19 17. Nc3 $2 (17. d3 $142 $19) 17... Nxg2+ (
    17... Nxg2+ 18. Bxg2 Qxg2 19. Qxe6 Qxh1 $19) 0-1
    
    [Event "corr ICCF EU-M-1031"]
    [Site "?"]
    [Date "1993.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Knebel, W."]
    [Result "0-1"]
    [PlyCount "36"]
    [EventDate "1993.??.??"]
    
    1. b4 e5 $15 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 Nc6 5. Bb2 O-O 6. a3 Be7 7. c4 (7.
    Nf3 Re8 $11) 7... d5 $15 8. Qc2 d4 (8... Re8 9. Bd3 $15) 9. Nf3 Bc5 10. e4 $2 (
    10. Be2 $142 $5 $15) 10... Nxe4 $1 $17 11. Bd3 (11. Qxe4 Re8) 11... Re8 (11...
    Bf5 $142 $17) 12. Kf1 $2 (12. O-O $142 $5 f5 13. Re1 $17) 12... Bf5 $19 13. g4
    (13. Kg1 Qf6 $19) 13... Qf6 14. Rg1 (14. gxf5 Qxf5 15. Rg1 Qxf3 16. Bxe4 Rxe4
    $19) 14... Bg6 15. Qd1 (15. Kg2 Qf4 16. h3 Ne5 $19) 15... Nxf2 $1 16. Kxf2 Bxd3
    17. Rg3 (17. g5 Qf5 18. Rg3 $19) 17... Be2 18. Qh1 d3+ (18... d3+ 19. Bd4 Nxd4
    $19) 0-1
    
    
    
    [Event "corr"]
    [Site "?"]
    [Date "1975.??.??"]
    [Round "?"]
    [White "Kuehn, Peter"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "57"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 Nc6 5. Bb2 O-O 6. c4 d5 7. cxd5 Nxd5 8.
    Be2 Re8 9. Nf3 Bg4 10. O-O Qe7 11. h3 Bh5 12. a3 Ba5 (12... Bd6 13. Qb3 Nb6 (
    13... Nf4 14. Bd1 Ne6 15. Qxb7 Rab8 16. Qxc6 Rxb2 17. Nc3 Reb8 $14 {0.34/8})
    14. d4 (14. Rc1 a5 15. d3 a4 16. Qc3 f5 17. Nbd2 Nd5 $11 {-0.25/8}) (14. Nc3
    Na5 15. Qb5 Bxf3 16. Bxf3 Nbc4 17. Ne4 c6 $17 {-0.72/9}) (14. Rd1 a5 15. d3 a4
    16. Qc2 Ra5 17. Nc3 f5 $15 {-0.28/9}) (14. d3 Rad8 15. Rc1 Bg6 16. Nbd2 Bf5 17.
    Qc3 f6 $11 {-0.06/9}) (14. Re1 Bg6 15. Nc3 a6 16. e4 Qd7 17. d3 Rad8 $11 {
    -0.19/9}) (14. Qc2 Rad8 15. Nc3 Bg6 16. d3 Ne5 17. Rfd1 Nec4 $15 {-0.34/8}) (
    14. a4 a5 15. d4 Bg6 16. d5 Nb4 17. Rc1 N6xd5 $17 {-1.00/9}) 14... Rad8 15.
    Nbd2 Bg6 16. Rfc1 Bf5 17. d5 Nxd5 $11 {0.00/9}) 13. Qb3 Nb6 (13... Qd6 14. Nc3
    (14. Qxb7 $2 Rab8 15. Qa6 Rxb2 $19) (14. d4 Rab8 15. Rc1 a6 16. Ra2 Bg6 17. Nc3
    Bxc3 $11 {0.00/9}) 14... Nb6 15. d4 $11 Rad8 16. Rfd1 a6 17. d5 Ne5 $11 {0.12/8
    }) (13... Qd7 14. Nc3 (14. Rc1) 14... Rad8 15. Rfd1 a6 16. Nxd5 Qxd5 17. Qxd5
    Rxd5 $11 {0.25/9}) 14. d4 (14. Qb5 Bg6 15. Nd4 a6 16. Nxc6 axb5 17. Nxe7+ Rxe7
    $11 {0.22/10}) (14. Nc3 Rad8 15. d4 Qe6 16. Qxe6 Rxe6 17. Rac1 Bg6 $11 {0.00/9}
    ) (14. Rc1 a6 15. d4 Qd6 16. Bc3 Bg6 17. Bxa5 Nxa5 $11 {0.00/9}) (14. Rd1 Qd6
    15. d4 Nd5 16. Rc1 Rab8 17. Rc5 Red8 $11 {0.00/8}) (14. d3 Rad8 15. Rd1 Bg6 16.
    Nc3 Bf5 17. d4 Bxc3 $11 {0.03/8}) 14... Rad8 15. Rd1 Rd5 (15... a6 16. Nc3 Bxc3
    17. Bxc3 Nd5 $11 {0.06/9}) 16. Nc3 Bxc3 17. Bxc3 (17. Qxc3 f5 $11 {0.09/8})
    17... Nd8 (17... Qe6 $11 {0.03/8}) 18. a4 c6 (18... a5 19. g4 Bg6 20. Ne5 $16)
    19. a5 Nc8 (19... Bxf3 20. Bxf3 (20. gxf3 $6 Rg5+ 21. Kh2 Qd6+ 22. f4 Nd5 $15)
    20... Rb5 21. Qc2 $16) 20. g4 $16 Bg6 21. Ne5 Nd6 (21... Qg5 22. a6 b6 23. Bb4
    $14) 22. Be1 (22. a6 $142 $5 Ne4 23. axb7 Nxb7 24. Rxa7 $16 (24. Nxg6 $6 hxg6
    25. Be1 Nd8 $16)) 22... Qh4 (22... Qe6 23. Nxg6 Qxg6 24. Bb4 $11) 23. Kg2 Ne6
    24. f3 Qg5 (24... Qh6 25. a6 bxa6 26. Bg3 $16 (26. Nxg6 $6 Nxd4 (26... fxg6
    $143 27. Bg3 $16) 27. Rxd4 Rxd4 28. exd4 Rxe2+ 29. Kf1 Nb5 $14)) 25. h4 Qe7 (
    25... Bc2 26. Qxc2 Qxe3 27. Bf2 Nf4+ 28. Kf1 Qxe2+ 29. Qxe2 Nxe2 30. Kxe2 $14)
    26. Bg3 (26. Nxg6 $6 fxg6 27. Bg3 Kh8 $14) 26... f6 (26... Nxd4 $5 27. exd4 f6
    $16) 27. Nxg6 $18 hxg6 28. e4 Nb5 29. exd5 (29. exd5 Nexd4 30. d6+ Nxb3 31.
    dxe7 Nxa1 32. Bc4+ (32. Rxa1 $6 Rxe7 33. Bc4+ Kh7 $18) 32... Kh7 33. Rd7 $18 (
    33. Rxa1 $6 Rxe7 34. Bf2 a6 $18)) 1-0
    
    [Event "corr ICCF EU/M/1175"]
    [Site "?"]
    [Date "2001.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Alagna, Luciano"]
    [Result "0-1"]
    [PlyCount "56"]
    [EventDate "2001.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 Nc6 5. Bb2 d5 6. a3 Be7 (6... Bd6 7. Nf3
    $15) 7. Bb5 O-O 8. Nf3 a6 9. Bxc6 bxc6 10. Ne5 (10. Nc3 Bd6 $15) 10... Qd6 11.
    c4 (11. Nf3 Bg4 $15) 11... Rb8 12. Bc3 (12. Qc2 Ng4 13. Nf3 dxc4 $17) 12... Ne4
    $17 13. d4 (13. Qc1 $5 $17) 13... Rxb1 $1 $19 14. Qxb1 (14. Rxb1 Nxc3) 14...
    Nxc3 15. c5 $2 (15. Qb4 $142 Ne4 16. Qxd6 Bxd6 17. Nxc6 dxc4 18. f3 $17) 15...
    Qxe5 $1 (15... Nxb1 $6 16. cxd6 Bxd6 17. Rxb1 $11) 16. dxe5 Nxb1 17. Rxb1 Bxc5
    18. Rb3 (18. Rc1 Bb6 $19) 18... Bb6 19. Ke2 (19. Kd2 Re8 $19) 19... c5 20. Rd1
    Re8 21. Rbd3 (21. Rxd5 Be6 22. Rbd3 c4 $19) 21... d4 22. Kf3 (22. f3 Bd7 23.
    Kf2 Bb5 $19) 22... Rxe5 23. g4 f5 24. h3 (24. g5 Bb7+ 25. Kg3 Re4 $19) 24...
    fxg4+ 25. hxg4 Rg5 26. Rg1 (26. exd4 cxd4 27. Rxd4 Bxd4 28. Rxd4 Kf7 $19) 26...
    c4 (26... h5 27. Kf4 Rxg4+ 28. Rxg4 Bxg4 29. f3 $19) 27. Rdd1 d3 28. Kf4 (28.
    Rc1 Be6 $19) 28... Rd5 (28... Rd5 29. e4 Rd8 $19) 0-1
    
    [Event "corr ICCF Thematic"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Wiencek, Tadeusz"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "70"]
    [EventDate "1988.??.??"]
    
    1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 Nc6 $15 5. Bb2 d5 6. Be2 O-O 7. Nf3 Bg4
    8. O-O Re8 9. d3 Qe7 10. Nbd2 Rad8 11. Rb1 d4 12. e4 (12. Nxd4 $142 Bxe2 13.
    Nxc6 Bxd1 14. Nxe7+ Bxe7 15. Rfxd1 $16) 12... h6 (12... Bc3 13. Re1 $15) 13. h3
    Bh5 14. Nh2 (14. Bc1 Bxf3 15. Nxf3 Rb8 $15) 14... Bg6 (14... Bxe2 15. Qxe2 Nd5
    16. Nhf3 $15) 15. f4 (15. Nhf3 Rd7 $15) 15... b6 16. Bf3 Bc5 (16... a5 17. f5
    Bh7 18. Ng4 $15) 17. e5 (17. Nb3 a6 $11) 17... Nd5 $15 18. Bxd5 Rxd5 19. Qf3
    Qd8 20. Ne4 (20. Nc4 Ne7 $15) 20... Bxe4 21. Qxe4 (21. dxe4 Rd7 22. Ba3 Bxa3
    23. Qxa3 d3 $15) 21... Nb4 $17 22. Rf2 Nxa2 23. Ra1 Nc3 24. Qf3 a5 25. Ba3 (25.
    Qg3 Rd7 $17) 25... Qd7 (25... Bxa3 26. Rxa3 Rb5 27. Ra1 $19) 26. Bxc5 Rxc5 (
    26... bxc5 $6 27. Rxa5 c4 28. Ra7 $11) 27. Nf1 (27. Qg3 a4 $19) 27... Qb5 (
    27... Qc6 28. Qg3 $19) 28. Nd2 (28. Ng3 Qb2 29. Re1 Qb4 $17) 28... Qb2 29. Re1
    a4 (29... Qxc2 $6 30. Ne4 Qa4 31. Nxc5 bxc5 32. f5 $11) 30. Ne4 (30. Nc4 $142
    Qa2 31. Qg4 $17) 30... a3 $4 (30... Ra5 31. Ng3 Qb4 32. Nf5 $19) 31. Nxc3 $4 (
    31. Nxc5 $142 bxc5 32. Qc6 $11) 31... Rxc3 (31... Qxc3 32. Rff1 $19) 32. Qd1 (
    32. f5 a2 33. Rff1 Rxc2 $19) 32... Ra8 33. Qb1 (33. f5 a2 34. Qa1 Qxa1 35. Rxa1
    Kf8 $19) 33... Ra5 34. Qxb2 axb2 35. Rff1 (35. Rb1 Ra1 36. Rff1 Rxb1 37. Rxb1
    Rxc2 $19) 35... Rxc2 (35... Rxc2 36. f5 Ra3 $19) 0-1
    
    [Event "corr ICCF T-19-F"]
    [Site "?"]
    [Date "1979.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Stabenow, Juergen"]
    [Result "1-0"]
    [PlyCount "111"]
    [EventDate "1979.??.??"]
    
    1. b4 e5 2. Bb2 Bd6 3. c4 c6 4. c5 $11 Bc7 5. Nf3 Qe7 6. e3 d6 7. d4 Bg4 (7...
    e4 8. Nfd2 $11) 8. Be2 (8. h3 Bh5 $11) 8... e4 9. Nfd2 Bxe2 10. Qxe2 f5 (10...
    d5 11. O-O $11) 11. Nc3 Nf6 12. cxd6 (12. O-O O-O $11) 12... Bxd6 13. b5 (13.
    a3 Nbd7 $11) 13... O-O (13... a6 14. bxc6 Nxc6 15. Nc4 $15) 14. a4 c5 (14... a6
    15. Qc4+ Rf7 16. Rd1 $15) 15. Qc4+ Kh8 16. Nb3 (16. dxc5 Bxc5 17. Rc1 Nbd7 $11)
    16... Nbd7 $15 17. dxc5 Nxc5 18. Nxc5 Bxc5 19. O-O Ng4 20. Nd5 Qd6 (20... Qh4
    21. h3 Bd6 22. Nf4 Bxf4 23. exf4 $11) 21. Nf4 Qh6 22. Bxg7+ Kxg7 23. h3 Bd6 24.
    hxg4 Bxf4 25. exf4 Qxf4 26. gxf5 Rxf5 27. Ra3 (27. Rad1 $14) 27... h5 (27... a6
    28. bxa6 Rxa6 $16) 28. Rg3+ (28. Re3 Re8 $16) 28... Kh7 29. Qe6 Rf6 30. Qd5 h4
    (30... Raf8 $5 31. Qxh5+ Rh6 32. Qg4 Qxg4 33. Rxg4 $18) 31. Re3 Rg8 32. Qxb7+
    Rg7 33. Qxe4+ Kh6 34. a5 Qg5 (34... Qxe4 35. Rxe4 Kh5 36. Rd1 $18) 35. Rb1 (35.
    Rc1 Rgf7 36. Rc6 Kg7 37. Rxf6 Qxf6 $18) 35... Rf4 36. Qc6+ Kh7 37. Rh3 Rg6 38.
    Qb7+ (38. Qc7+ $5 Rg7 39. Qc2+ Kg8 40. Qc8+ Kh7 $18) 38... Rg7 $16 39. Qa8 Rg8
    $2 (39... Qf5 $142 40. Rbb3 Qc5 $18) 40. Qxa7+ $18 Rg7 41. Qa8 Rg8 (41... Ra4
    42. Qf3 $18) 42. Qc6 Rg6 43. Qd7+ (43. Qc7+ Kg8 44. Qc8+ Rf8 45. Qc4+ Rf7 $18)
    43... Kg8 (43... Rg7 44. Qd3+ Kg8 45. Rh2 $18) 44. Rh2 Rxf2 (44... Re4 45. Qc8+
    Kf7 46. Qb7+ Re7 47. Qf3+ Rf6 48. Qc3 $18) 45. Qc8+ (45. Kxf2 $6 Qc5+ 46. Ke1
    Qe5+ 47. Kf1 Qxh2 48. Qe8+ Kg7 49. Qe7+ Kh6 50. Qe3+ Kg7 $18) 45... Rf8 46.
    Qc4+ Kg7 47. Qxh4 Qc5+ 48. Kh1 Qf5 49. Qe1 (49. Qh7+ Kf6 50. Re1 Re8 51. Qh4+
    Kg7 52. Re7+ Kf8 53. Rxe8+ Kxe8 54. Qh8+ Kd7 55. Rh7+ Kd6 56. Qd4+ Ke6 57. Qc4+
    Qd5 58. Qe2+ Kf5 59. Qf2+ Ke4 60. Qf3+ Kd4 61. Qd1+ Kc5 $18) 49... Re6 50. Qg1
    Rh8 (50... Ref6 51. Rh3 $18) 51. Rxh8 Kxh8 52. Qd4+ (52. Qc1 Kg7 $18) 52... Kg8
    53. Rd1 (53. Qd8+ $142 Kf7 54. Rc1 Re7 $18) 53... Qxb5 54. Qd8+ Re8 55. Qd5+
    Qxd5 56. Rxd5 (56. Rxd5 Ra8 57. Rf5 $18) 1-0
    
    [Event "corr SOK-92-86"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Zimmer, Georg"]
    [Result "1-0"]
    [PlyCount "59"]
    [EventDate "1992.??.??"]
    
    1. b4 e6 2. Bb2 d5 3. e3 Nf6 4. a3 Bd6 5. d4 O-O 6. Nf3 c6 (6... a5 7. bxa5
    Nbd7 8. Bd3 $15) 7. c4 dxc4 8. Bxc4 b5 9. Bd3 Re8 (9... a5 10. Qb3 $15) 10. Qc2
    (10. O-O $142 $11) 10... Nbd7 $4 (10... a5 $142 $11) 11. Qxc6 $18 Nb6 12. Qxb5
    Bd7 13. Qa5 Nbd5 14. Qxd8 Rexd8 (14... Raxd8 15. Nc3 $18) 15. Nc3 a5 (15...
    Rac8 16. Nxd5 Nxd5 17. Rc1 $18) 16. bxa5 (16. Nxd5 Nxd5 17. b5 Rab8 $18) 16...
    Rxa5 17. Ne2 (17. Nxd5 $5 Nxd5 18. Ne5 Bxe5 19. dxe5 Bb5 $18) 17... Bb5 (17...
    Rb8 18. Ra2 $16) 18. Kd2 (18. Bxb5 Rxb5 19. Bc3 Bxa3 $14) 18... Ng4 19. Rhf1
    Bxd3 20. Kxd3 Rda8 21. h3 Ngf6 22. e4 Bxa3 23. exd5 Nxd5 $2 (23... Bxb2 24.
    Rxa5 Rxa5 25. dxe6 fxe6 $18) 24. Bxa3 Rxa3+ 25. Rxa3 Rxa3+ 26. Ke4 Ra2 27. Nfg1
    (27. Nf4 Nc3+ 28. Ke5 Ra5+ 29. Kd6 g5 $18) 27... f5+ (27... Nf6+ 28. Ke5 $18)
    28. Ke5 Kf7 29. Rb1 Nf6 (29... Ra7 30. Nf3 Ke7 31. Ng5 $18) 30. Rb7+ (30. Rb7+
    Kg6 31. Nf4+ Kh6 32. Nxe6 Ra5+ 33. Nc5 $18) 1-0
    
    [Event "corr SOK-89-43"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Mueller, P."]
    [Result "1-0"]
    [PlyCount "99"]
    [EventDate "1989.??.??"]
    
    1. b4 e6 2. Bb2 $11 Qh4 3. a3 f5 4. Nf3 $14 Qh6 5. c4 Nf6 6. Nc3 Be7 7. e3 b6 (
    7... O-O 8. Be2 $14) 8. Nb5 Na6 9. Be5 d6 10. Bf4 Qg6 11. Nbd4 Nb8 (11... O-O
    12. Nc6 Re8 13. Nxe7+ Rxe7 14. d4 $14) 12. Bg3 (12. Qa4+ Bd7 13. Nb5 $11) 12...
    O-O 13. Nh4 Qf7 14. Qf3 Ne4 15. d3 Nxg3 16. hxg3 d5 17. cxd5 exd5 18. Rc1 c5
    19. Nb5 Na6 20. bxc5 bxc5 21. d4 cxd4 (21... g5 22. Bc4 Bb7 23. Nc3 $15) 22.
    exd4 $17 g5 23. Nc7 (23. Nc3 Bxa3 (23... gxh4 $6 24. Nxd5 Bb7 25. Bc4 $17) 24.
    Ra1 Bb2 25. Rxa6 Bxa6 (25... gxh4 $6 26. Rh6 $11) 26. Bxa6 Bxc3+ 27. Qxc3 Qe6+
    28. Be2 gxh4 29. Rxh4 Rfe8 $19) 23... Nxc7 $19 24. Rxc7 Bb4+ 25. axb4 Qxc7 $4 (
    25... Re8+ 26. Kd1 Qxc7 27. Nxf5 Bxf5 28. Qxf5 Re1+ 29. Kxe1 Qc1+ 30. Ke2 Re8+
    31. Qe5 Qb2+ 32. Kf3 Rxe5 33. dxe5 Qxb4 $19) 26. Qxd5+ $18 Kg7 27. Nf3 Be6 $4 (
    27... Qc1+ 28. Ke2 Qc2+ 29. Ke1 Re8+ 30. Ne5 Qb1+ 31. Ke2 Ba6+ 32. Kd2 Qxb4+
    33. Kd1 Qb1+ 34. Kd2 Qb2+ 35. Kd1 $19) 28. Qe5+ $4 (28. Qxe6 Qc1+ 29. Ke2 $15)
    28... Qxe5+ $15 29. dxe5 {The passed pawn on e5 quickly leads to threats} h6
    30. Nd4 Bd5 31. Rh2 (31. Bd3 Rae8 32. f4 Bxg2 $17) 31... Kg6 (31... f4 32. g4
    Rfe8 33. Nf5+ Kg8 34. Kd2 $17) 32. g4 $11 {White gets strong initiative} Be4
    33. f3 Bb1 34. gxf5+ Bxf5 35. g4 Bd7 (35... Bb1 36. b5 $11) 36. Bd3+ $14 Kg7
    37. e6 Be8 (37... Rfe8 $142 $5 38. Be4 Bxe6 39. Bxa8 Bd5+ 40. Kf2 Rxa8 41. Nf5+
    Kf7 42. Rxh6 Rb8 $16) 38. Nf5+ $18 Kf6 39. Rxh6+ Ke5 40. e7 Rg8 (40... Rf6 41.
    Rxf6 Kxf6 42. b5 $18) 41. Bc4 Rg6 42. Rh8 Rc6 43. Bd3 Rcc8 (43... Rac8 44. b5
    Rc3 45. Ke2 $16) 44. Rg8 (44. b5 Rc1+ 45. Ke2 Rac8 $18) 44... Bc6 (44... Rc3
    45. Kd2 Rxd3+ 46. Ke2 $19) 45. Rxg5 $18 Kf4 46. Rg7 Bxf3 47. Nd6 Ke3 $2 (47...
    Rh8 $142 48. g5 Rh1+ 49. Kd2 Rd1+ 50. Kc3 Bh5 $18) 48. Nxc8 Rxc8 49. Bc2 (49.
    Bc4 Kd4 50. Bb5 a5 $18) 49... Bc6 (49... Be4 50. Bd1 $18) 50. g5 (50. g5 Bb5
    51. Kd1 $18) 1-0
    
    [Event "corr SOK-89-36"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Rossbach, Werner"]
    [Result "*"]
    [PlyCount "69"]
    [EventDate "1989.??.??"]
    
    1. b4 e6 2. Bb2 Nf6 3. a3 b6 4. e3 Bb7 5. Nf3 Be7 6. c4 O-O 7. Nc3 d5 8. d4 c5
    9. bxc5 bxc5 10. Qb3 Qb6 11. Qc2 (11. Qxb6 axb6 12. dxc5 bxc5 13. cxd5 exd5 $15
    ) 11... cxd4 $15 12. Nxd4 dxc4 13. Na4 (13. Bxc4 $5 Rc8 14. Na4 $17) 13... Qa5+
    $17 14. Bc3 Qg5 15. h4 Qg4 16. f3 (16. Bxc4 Qxg2 17. Rf1 Qh2 $17) 16... Qg3+
    $19 17. Qf2 Qxf2+ 18. Kxf2 Rc8 19. e4 Nbd7 20. Bb4 Bxb4 21. axb4 c3 (21... a5
    22. b5 g6 $17) 22. Rc1 $15 a5 23. b5 $2 (23. bxa5 e5 24. Nf5 Kf8 $11) 23...
    Bxe4 (23... e5 24. Nf5 Kf8 $14) 24. fxe4 $15 Nxe4+ 25. Ke3 Ng3 26. Rh3 (26. Rh2
    Nxf1+ 27. Rxf1 Rc4 $15) 26... Nxf1+ 27. Rxf1 Rc4 28. Ra1 c2 29. Rhh1 e5 30. Ne2
    (30. Nc6 Rg4 $15) 30... Rac8 31. g3 (31. b6 Rb4 $15) 31... f5 (31... Rb8 32.
    Nb2 Rb4 33. Rhc1 Rxb2 34. Rxa5 $19) 32. Kd2 f4 33. gxf4 exf4 34. Nec3 (34. Rhc1
    f3 35. Nec3 Rxh4 $17) 34... Nc5 $17 35. Nxc5 (35. Nxc5 R8xc5 36. Rh3 $14) *
    
    [Event "corr SOK-89-43"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Zimmer, Georg"]
    [Result "1-0"]
    [PlyCount "29"]
    [EventDate "1989.??.??"]
    
    1. b4 e6 2. Bb2 Nf6 3. a3 c5 4. b5 d5 5. e3 b6 6. Nf3 $11 Be7 7. c4 (7. Be5
    Nbd7 $11) 7... dxc4 (7... O-O 8. cxd5 Nxd5 9. e4 $15) 8. Bxc4 O-O 9. d3 Bb7 10.
    e4 (10. O-O a6 $11) 10... Qd7 11. Qb3 Rd8 12. Ng5 Qxd3 $4 (12... Qd6 $142 $11)
    13. Bxd3 $18 Bxe4 (13... h6 14. e5 hxg5 15. exf6 Bxf6 16. Bxf6 gxf6 17. f3 $18)
    14. Nxe4 Nxe4 15. Bxe4 (15. Bxe4 Nd7 16. Bxa8 Rxa8 17. O-O $18) 1-0
    
    [Event "corr 3GMM-11"]
    [Site "?"]
    [Date "1996.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Kaminski, Roman"]
    [Result "1/2-1/2"]
    [PlyCount "83"]
    [EventDate "1996.??.??"]
    
    1. b4 e6 2. Bb2 Nf6 3. a3 c5 4. b5 d5 $15 5. e3 c4 (5... Bd6 6. Nf3 $15) 6. d3
    $11 cxd3 7. Bxd3 Be7 (7... a6 8. Nf3 $11) 8. Nf3 O-O 9. Nbd2 (9. O-O a6 $11)
    9... Nbd7 10. c4 (10. O-O Nc5 $11) 10... Nc5 11. Bc2 Qa5 12. O-O dxc4 13. Nd4
    c3 14. Nc4 Qc7 15. Bxc3 Nce4 16. Bxe4 Nxe4 17. Qd3 (17. Rc1 e5 18. Ba5 Qb8 $11)
    17... Nxc3 $15 18. Qxc3 b6 (18... e5 19. Ne2 f6 20. Rfc1 $15) 19. Rfc1 Bb7 20.
    Qb2 (20. Na5 Qxc3 21. Rxc3 Bxg2 22. Kxg2 bxa5 $11) 20... Qb8 (20... Bd5 21. Nd2
    Qb7 22. f3 $11) 21. f3 (21. Qc2 Rc8 22. Qd3 Bd5 $11) 21... Rc8 22. Rc2 Bf6 (
    22... Bd5 23. Rac1 $11) 23. Rac1 e5 24. Nf5 e4 25. Qb3 Bd5 (25... Rd8 26. f4
    $11) 26. Nfd6 (26. Ncd6 Rxc2 27. Qxc2 exf3 $11) 26... Bxc4 27. Nxc4 exf3 28.
    gxf3 a6 29. bxa6 {Plans Nxb6} b5 {
    The passed pawn on a6 quickly leads to threats} (29... Rxa6 $2 30. Nd6 $5 Rxc2
    31. Qxf7+ Kh8 32. Rxc2 $18) 30. Nd2 {White threatens strongly a7} Rxc2 31. Rxc2
    Qb6 (31... Rxa6 $143 32. Qxb5 Ra8 33. Qxb8+ Rxb8 34. a4 $18) 32. a4 b4 33. Ne4
    Bc3 34. Kf2 (34. Nxc3 Qxe3+ 35. Kg2 Qg5+ 36. Kh1 bxc3 37. Qxc3 Rd8 $11) 34...
    Qh6 35. Nxc3 Qxh2+ 36. Ke1 Qg1+ 37. Ke2 bxc3 38. Qxc3 {Threatening mate... how?
    } Qh2+ 39. Ke1 Qg3+ 40. Ke2 Qg2+ 41. Ke1 Qg3+ 42. Ke2 1/2-1/2
    
    [Event "corr ICCF WT-M-GT-216"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Neubecker, Adolf"]
    [Result "1-0"]
    [PlyCount "51"]
    [EventDate "1988.??.??"]
    
    1. b4 e6 2. Bb2 Nf6 3. a3 c5 4. bxc5 Bxc5 5. d4 Be7 6. c4 d5 $15 7. e3 O-O 8.
    Nc3 Nc6 (8... Nbd7 9. c5 $11) 9. Nh3 (9. Nf3 Bd7 $11) 9... dxc4 10. Bxc4 b6 (
    10... e5 $5 11. dxe5 Nxe5 $15) 11. O-O $11 Bb7 12. Qc2 (12. Rc1 a6 $11) 12...
    Rc8 13. Bd3 h6 (13... a6 14. Ng5 h6 15. Nh7 Nxh7 16. Bxh7+ Kh8 17. Be4 $11) 14.
    Rad1 (14. Rac1 Qd6 $11) 14... Na5 (14... a6 15. Nf4 $11) 15. Qe2 Nc6 (15... Nd5
    16. Nxd5 Bxd5 17. e4 $11) 16. Nf4 {White begins to deal mighty blows} Bd6 17.
    d5 exd5 18. Ncxd5 Nxd5 19. Nxd5 Qh4 {Do you see the mate threat?} 20. g3 Qh3 (
    20... Qd8 $142 $5 $14) 21. Qf3 $18 {Threatening Bf5} f5 22. Nf6+ Rxf6 (22...
    gxf6 23. Qd5+ Kh8 24. Bxf5 Ne7 25. Bxh3 Nxd5 (25... Bxd5 $2 26. Bxc8 Be5 27.
    Bxe5 fxe5 28. Ba6 $18) 26. Bxc8 Rxc8 $14) 23. Bxf6 $11 Rf8 $4 (23... Nd8 $142
    24. Bxf5 Qxf1+ (24... Bxf3 $2 25. Bxh3 Bxd1 26. Bxc8 $18) 25. Kxf1 Bxf3 26.
    Bxc8 Bxd1 27. Bxd8 Kf7 $11) 24. Bxf5 $18 Nd4 (24... Na5 25. Bxh3 (25. Rxd6 $6
    Qxf1+ (25... Bxf3 26. Bxh3 Rxf6 27. Rxf6 gxf6 28. Rc1 $18) 26. Kxf1 Bxf3 27.
    Be6+ Kh7 $18) 25... Bxf3 26. Be6+ Kh7 27. Bxg7 (27. Rxd6 $6 Rxf6 28. e4 Nc4 $18
    ) 27... Kxg7 28. Rxd6 $18) 25. Qxb7 (25. Bxh3 $2 Nxf3+ (25... Bxf3 $4 26. Bxd4
    (26. Rxd4 $6 Rxf6 27. Rc1 Bxa3 $18) (26. exd4 $6 Bxd1 27. Be5 Bxe5 28. Be6+ Kh8
    29. dxe5 Bf3 $18) 26... Bxd1 27. Rxd1 $18) 26. Kh1 Rxf6 $19) (25. exd4 Qxf1+ (
    25... Bxf3 $143 26. Bxh3 Bxd1 27. Be5 Bxe5 28. Be6+ Kh7 29. dxe5 $18) 26. Kxf1
    Bxf3 $14) (25. Rxd4 $6 Bxf3 26. Bxh3 Rxf6 $18) (25. Bxd4 $6 Qxf1+ (25... Bxf3
    26. Bxh3 Bxd1 27. Rxd1 $18) 26. Kxf1 Bxf3 27. Be6+ Kh7 $16) 25... Nxf5 26. Rxd6
    $1 (26. Rxd6 gxf6 27. Rd7 $18) 1-0
    
    [Event "corr ICCF WT-M-628"]
    [Site "?"]
    [Date "1995.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Griesmann, Marcel"]
    [Result "1/2-1/2"]
    [PlyCount "107"]
    [EventDate "1995.??.??"]
    
    1. b4 e6 2. Bb2 Nf6 3. a3 d5 4. e3 a5 5. b5 Nbd7 6. c4 Bd6 7. cxd5 exd5 8. d4 (
    8. Nf3 Nb6 $15) 8... O-O 9. Qc2 a4 (9... Nb6 10. Bd3 $15) 10. Nc3 (10. Bd3 Re8
    $11) 10... Nb6 11. Bd3 Re8 (11... Bg4 12. Nge2 $11) 12. Nge2 Qe7 13. O-O c6 (
    13... Bg4 14. Ng3 $11) 14. bxc6 (14. Rfc1 Qc7 $11) 14... bxc6 15. Rfb1 Ba6 16.
    Nc1 Bxd3 (16... Ng4 17. g3 Bxd3 18. Nxd3 $15) 17. Nxd3 $11 Nc4 {
    The pressure on the isolated pawn grows} (17... Reb8 18. Bc1 $15) 18. Bc1 (18.
    Nxa4 Ne4 $11) 18... Bxa3 19. Ne5 Bxc1 (19... Qxe5 20. dxe5) 20. Nxc4 dxc4 21.
    Rxc1 {Increasing the pressure on the isolated pawn on a4} a3 22. Na4 (22. Nb1
    Qd6 $15) 22... Reb8 (22... Ng4 23. g3 $15 (23. Qxc4 $2 Qh4 24. Qxc6 Qxf2+ 25.
    Kh1 Qxe3 $19)) 23. Nc5 $11 (23. Qxc4 $143 Rb4 24. Qc5 Kf8 25. Qxe7+ Kxe7 $17)
    23... Qa7 (23... Ng4 24. h3 (24. Qxc4 $143 Qh4 25. Nd3 Qxh2+ 26. Kf1 Qh1+ 27.
    Ke2 Qxg2 $17) 24... Ne5 25. Ra2 $11) 24. Ra2 (24. Qxc4 Nd7 $11) 24... Nd5 25.
    Qxc4 Nb4 (25... Rb2 26. Raa1 $11) 26. Raa1 $14 a2 27. Kf1 (27. Rc3 Nd5 28. Rb3
    Rxb3 29. Qxb3 Rb8 $17) 27... Nd5 28. Nd3 (28. e4 Nb6 29. Qc3 Nd7 $11) 28... Rb6
    (28... Qa6 29. Qxa6 Rxa6 30. Ke1 $15) 29. e4 $11 Nc7 30. Ke2 (30. Nc5 Qa3 31.
    Rd1 Rb4 $17) 30... Qa4 (30... Ne6 31. Rc2 Ra6 32. Nc5 Nxc5 33. Qxc5 $15) 31.
    Qc5 (31. Qxa4 Rxa4 32. Rc2 Nb5 $11) 31... Rab8 (31... Qa6 32. Qc4 $15) 32. Qc4
    $11 Ra8 33. Qc5 (33. Qxa4 Rxa4 34. Rc2 Nb5 $11) 33... Qa6 (33... Rb3 34. Qxc6
    Qxc6 35. Rxc6 $15) 34. Qc4 Qxc4 35. Rxc4 Rb1 (35... Ne6 36. Ke3 Rb1 37. Rc1
    Rxa1 38. Rxa1 $15) 36. Rc1 $11 Rxa1 37. Rxa1 Nb5 38. Nb4 Nxd4+ (38... f5 39.
    Ke3 (39. Nxa2 Nxd4+ 40. Kd3 Nb3 $17) 39... Ra3+ 40. Kf4 Nxd4 41. Rxa2 (41. Nxa2
    $2 fxe4 42. Rd1 Ne2+ (42... Rxa2 $6 43. Rxd4 Rxf2+ 44. Kg3 $19) 43. Kxe4 Rxa2
    44. Rd8+ Kf7 $19) 41... Rxa2 42. Nxa2 fxe4 43. Kxe4 $11) 39. Ke3 c5 40. Rxa2
    Rxa2 41. Nxa2 Kf8 42. e5 Ke7 43. Ke4 (43. Nc3 Ke6 44. f4 Kf5 $11) 43... Nb3 (
    43... Ke6 44. Nc3 $11) 44. Kd5 $14 Nd2 45. Nc3 c4 46. f4 h5 (46... f6 47. Ne4
    Nxe4 48. Kxe4 fxe5 49. fxe5 $11) 47. h4 (47. Kd4 Ke6 $14) 47... g6 (47... f6
    48. Nb5 $11) 48. Ne2 Nf1 49. Kd4 (49. Kxc4 $143 Ne3+ 50. Kd3 Nxg2 $17) 49...
    Ke6 50. Ke4 Nd2+ 51. Ke3 Nb3 52. Ke4 f6 53. exf6 Kxf6 54. Nc3 1/2-1/2
    
    [Event "corr ICCF EU/M/Gr/722 (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Karker, N."]
    [Result "0-1"]
    [PlyCount "60"]
    
    1. b4 e6 2. Bb2 Nf6 3. a3 d5 4. e3 c5 5. bxc5 Bxc5 6. d4 Be7 7. Bd3 O-O (7...
    Qb6 8. Ra2 $11) 8. Nd2 (8. Nf3 Nc6 $11) 8... b6 (8... Qb6 9. Bc3 $11) 9. Qe2
    Bb7 (9... Nc6 10. Ngf3 $11) 10. Ngf3 Nbd7 11. h3 (11. O-O Rc8 $11) 11... Ne4 (
    11... Rc8 12. O-O $11) 12. Bb5 (12. O-O Rc8 $11) 12... Rc8 13. Nxe4 (13. Bd3
    Qc7 $15) 13... dxe4 $17 14. Nh2 f5 (14... a6 15. Bxa6 Bxa6 16. Qxa6 Rxc2 17.
    Qb5 $17) 15. Rc1 (15. O-O Qc7 $15) 15... Nf6 (15... Bd6 16. O-O $15) 16. Ba6 (
    16. O-O Qc7 $15) 16... Bxa6 17. Qxa6 Bd6 18. c4 (18. Qxa7 $2 Bxh2 19. g3 Qd6
    $19) 18... Qc7 {Black prepares the advance f4} (18... Qd7 19. Qb5 $15) 19. Nf1
    f4 20. c5 (20. exf4 Bxf4 21. Rc2 Nd5 $15) 20... bxc5 21. dxc5 (21. exf4 Qb8 22.
    Rd1 c4 $17) 21... Bxc5 $17 22. Qxe6+ Kh8 23. Ke2 (23. Qb3 $5 $17) 23... f3+ $19
    24. gxf3 exf3+ 25. Kd3 $4 (25. Kd1 Rcd8+ 26. Bd4 $19) 25... Rfd8+ (25... Rfe8
    26. Qxe8+ Rxe8 27. Bxf6 Qd7+ 28. Kc2 Qa4+ 29. Kb1 gxf6 30. Rc2 Rb8+ 31. Rb2
    Qd1+ 32. Ka2 Qd5+ 33. Kb1 Qd3+ 34. Kc1 Bxa3 35. Nd2 Rc8+ 36. Kd1 Qe2#) 26. Bd4
    Bxd4 {Threatening mate... how?} 27. Rxc7 Be5+ 28. Kc4 (28. Qd7 Bxc7 29. Qxd8+
    Rxd8+ 30. Kc4 $19) 28... Rxc7+ 29. Kb4 Rb8+ 30. Ka4 (30. Ka5 Bc3+ 31. Ka4 Nd7
    32. Qe8+ Rxe8 33. Nh2 Rb7 34. Nxf3 Nc5#) 30... Nd7 (30... Nd7 31. Qxd7 Rxd7 32.
    Nd2 Rd6 33. Nc4 Ra6+ 34. Na5 Bc3 35. Rd1 Rxa5#) 0-1
    
    [Event "corr 3GMM-23"]
    [Site "?"]
    [Date "1995.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Ranby, Hans"]
    [Result "0-1"]
    [PlyCount "76"]
    [EventDate "1995.??.??"]
    
    1. b4 f5 2. Bb2 e6 3. e3 Nf6 4. a3 Be7 5. c4 (5. Nf3 O-O $11) 5... b6 (5... a5
    6. b5 $11) 6. Be2 Bb7 7. Bh5+ (7. Bf3 c6 $11) 7... Nxh5 8. Qxh5+ g6 9. Qh3 Bf6
    10. Nc3 (10. Bxf6 Qxf6 11. Nc3 a5 $11) 10... Nc6 (10... a5 11. b5 $11) 11. Nf3
    Ne5 12. Nxe5 Bxe5 13. f4 Bg7 14. Rg1 (14. O-O Qe7 $11) 14... d5 (14... Qe7 15.
    Nd1 $15) 15. cxd5 Bxd5 16. Rc1 O-O (16... c5 17. Ba1 $15 (17. Nxd5 $2 Bxb2 18.
    Rc2 Bxa3 $19 (18... exd5 $6 19. Rxb2 Qf6 20. Rb1 $11))) 17. g4 (17. Nxd5 $5
    exd5 18. Bxg7 Kxg7 19. g4 $14) 17... Bc4 $15 18. d4 c5 (18... Rc8 $5 $15) 19.
    Nd1 $14 (19. bxc5 $143 bxc5 20. dxc5 Rc8 $11) (19. dxc5 $143 bxc5 20. bxc5 Rc8
    $11) 19... Ba6 (19... Bb3 20. dxc5 bxc5 21. Bxg7 (21. bxc5 $143 Qa5+ 22. Nc3
    Rac8 $15) 21... Kxg7 22. bxc5 Qa5+ 23. Nc3 Qxc5 24. a4 $15) 20. bxc5 (20. dxc5
    $5 bxc5 21. Bxg7 (21. Rxc5 $6 Qd3 22. Qg2 Rfd8 $11) 21... Kxg7 22. Rxc5 $16 (
    22. bxc5 Qa5+ 23. Rc3 Rad8 $17)) 20... bxc5 21. Rxc5 {
    White creates threats along the open c-file} Rc8 (21... Rb8 22. Qg3 $14) 22.
    Rxc8 Qxc8 23. Qf3 Qc4 24. gxf5 Rxf5 (24... exf5 25. h4 Bf6 26. Rh1 $11) 25. Rg2
    Rb5 (25... Rf7 26. Rg4 $14) 26. Rf2 (26. Qe2 Qc6 27. Qc2 Qf3 $16) 26... Rb8 (
    26... Bf6 27. Qg4 $14) 27. Qe4 (27. h4 $5 $14) 27... Bf6 $11 28. Rc2 (28. Kd2
    $11) 28... Qb3 (28... Qf1+ $5 29. Kd2 Bc4 $15) 29. Rc3 (29. Rc7 Bd8 30. Rxa7
    Ba5+ 31. Kf2 Bd3 $16) 29... Qa2 $11 30. Qc2 Bd8 (30... Qd5 $5 31. Qf2 Bc4 $14)
    31. Rc6 $16 Bb7 32. Nc3 Ba5 33. Rc5 (33. Kd1 Bxc3 34. Rxc3 Qd5 $11) 33... Bxc3+
    34. Rxc3 (34. Qxc3 $2 Ba6 $19) 34... Qd5 35. Qf2 $2 (35. e4 $142 Qxe4+ 36. Qxe4
    Bxe4 37. Bc1 $11) 35... Qh1+ $19 36. Kd2 $4 (36. Qf1 $142 Qxf1+ 37. Kxf1 Ba6+
    38. Kf2 Rxb2+ 39. Kg3 $19) 36... Bf3 37. Kd3 Qb1+ 38. Kc4 (38. Rc2 Rxb2 39. h3
    $19) 38... Bd5+ (38... Bd5+ 39. Kc5 Rxb2 40. Qh4 Rxh2 41. Qd8+ Kf7 42. Qc7+ Ke8
    43. Qc8+ Ke7 44. Qc7+ Kf8 45. Qd8+ Kg7 46. Qe7+ Kh6 47. Qg5+ Kg7 48. Qe7+ Kg8
    49. Qe8+ Kg7 50. Qe7+) (38... Qxb2 $6 39. Qxb2 Rxb2 40. h4 $19) (38... Rxb2 $6
    39. Qxf3 Rb6 40. d5 $11) 0-1
    
    [Event "corr SOK-92-86"]
    [Site "?"]
    [Date "1992.??.??"]
    [Round "?"]
    [White "Zimmer, Georg"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "62"]
    [EventDate "1992.??.??"]
    
    1. b4 f5 2. Bb2 e6 3. e3 Nf6 4. b5 c6 (4... d5 5. Nf3 $11) 5. c4 (5. Nf3 d5 $11
    ) 5... Be7 6. Nf3 O-O 7. Nc3 a6 8. a4 d5 9. d4 Bb4 10. Bd3 dxc4 11. Bxc4 Ne4
    12. Qb3 Qa5 13. O-O (13. Rc1 $5 Nxc3 14. Rxc3 axb5 15. axb5 cxb5 16. Be2 $17)
    13... Nxc3 $19 14. Bxc3 Bxc3 15. Rac1 Bb4 16. Bxe6+ Bxe6 17. Qxe6+ Kh8 18. Ng5
    (18. Ne5 $5 Qc7 19. bxc6 bxc6 20. Nxc6 Nxc6 21. Qxc6 $17) 18... Qc7 (18... h6
    19. Nf7+ Kh7 20. bxc6 Nxc6 21. Qb3 $19) 19. bxc6 Nxc6 20. d5 (20. Qb3 $142 Qe7
    21. Ne6 $19) 20... Qe7 (20... Rf6 $142 21. Nf7+ Qxf7 22. Qxf7 Rxf7 23. dxc6 Rc7
    $19) 21. dxc6 $15 Qxg5 22. cxb7 Rab8 23. Qxa6 {
    The passed pawn on a4 quickly leads to threats} (23. Rc8 Qe7 24. Rxb8 Rxb8 25.
    Qxe7 Bxe7 26. Rc1 $16) 23... Qe7 $15 24. Rc8 Qxb7 25. Qxb7 Rxb7 26. Rxf8+ Bxf8
    27. a5 (27. Ra1 $5 $17) 27... Ra7 28. Ra1 Ra6 29. Ra4 (29. h3 $5 $17) 29... g6
    30. f4 (30. g4 fxg4 31. Rxg4 Rxa5 $19) 30... Bc5 31. Kf2 Bb6 (31... Bb6 32. Kf3
    Rxa5 33. Rxa5 Bxa5 $19) 0-1
    
    [Event "corr SOK-87-14"]
    [Site "?"]
    [Date "1987.??.??"]
    [Round "?"]
    [White "Roggensack Hanspach, Peter"]
    [Black "Diener, Rudolf"]
    [Result "1-0"]
    [PlyCount "71"]
    [EventDate "1987.??.??"]
    
    1. b4 f5 2. Bb2 e6 3. e4 Qh4 4. exf5 $14 Qe4+ 5. Be2 Qxf5 (5... exf5 6. Nf3 $11
    ) 6. Bh5+ Kd8 7. Bf3 Nf6 8. Ne2 (8. a3 e5 $14) 8... Bxb4 $15 9. Ng3 Qg6 10. O-O
    (10. a3 Bc5 $15) 10... Nc6 11. d4 d5 12. c4 Bd7 13. Qb3 Qf7 (13... Rf8 14. cxd5
    Nxd5 15. Be4 $15) 14. Nc3 (14. Rc1 Rf8 $15) 14... dxc4 (14... Bd6 $5 15. Nb5
    Bxg3 16. fxg3 Na5 $19) 15. Qxc4 $15 Bxc3 (15... Bd6 16. Rae1 $15) 16. Bxc3 $11
    Nd5 17. Ne4 b6 (17... Rf8 18. Bd2 $11) 18. Ng5 $14 Qe8 (18... Qf5 $5 19. Nxe6+
    Bxe6 20. Qxc6 Rb8 $14) 19. Nxe6+ $1 $16 Bxe6 (19... Qxe6 {Decoy to e6} 20. Rae1
    ) 20. Rae1 $4 (20. Bxd5 Bxd5 21. Qxd5+ Kc8 $16) 20... Na5 (20... b5 $142 21.
    Rxe6 bxc4 22. Rxe8+ Rxe8 23. Bxd5 Kd7 $15) 21. Bxa5 $14 c6 22. Bxd5 (22. Bd2
    Qd7 $16) 22... cxd5 23. Qa6 {White gets kings attack} Qc6 24. Bd2 h6 25. Bf4
    Bc8 (25... Qc8 26. Bc7+ Qxc7 27. Rxe6 $14) 26. Qa3 {The mate threat is Qe7} Re8
    27. Rc1 Qg6 28. Bc7+ Kd7 29. Be5 (29. Qa4+ Ke7 $16) 29... Kd8 $16 30. Rc3 Re7
    31. Rg3 Qh7 (31... Qf5 $142 32. Rxg7 Rxg7 33. Bxg7 Qf4 $16) 32. Rxg7 $3 Rxg7 {
    Decoy theme: g7} (32... Qxg7 33. Bxg7) 33. Qf8+ {Theme: Double Attack} Kd7 34.
    Bxg7 (34. Qxg7+ $6 Qxg7 35. Bxg7 Ba6 $16) 34... Qg6 35. Re1 (35. Bxh6 $143 Bb7
    36. Qg7+ Qxg7 37. Bxg7 Rc8 $18) 35... Kc6 36. Qe8+ (36. Qe8+ Qxe8 37. Rxe8 $16)
    (36. Qd8 $5 Qc2 $18) 1-0
    
    [Event "corr (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Lieber, Karl Heinz"]
    [Result "*"]
    [PlyCount "59"]
    
    1. b4 f5 2. Bb2 Nf6 3. e3 e6 4. b5 Be7 5. c4 O-O 6. d4 b6 7. Nd2 (7. Be2 a6 $11
    ) 7... a6 8. a4 axb5 (8... Bb7 9. Ngf3 $15) 9. axb5 $11 Rxa1 10. Bxa1 Bb7 11.
    Ngf3 Ne4 12. Nxe4 (12. Be2 Nxd2 13. Qxd2 c6 $11) 12... fxe4 13. Nd2 d5 14. Qg4
    (14. Bc3 c6 $11) 14... Rf6 (14... Bc8 15. Bc3 $15) 15. g3 (15. Bc3 c6 $11)
    15... Qf8 (15... Bb4 16. Qd1 $17) 16. Qe2 Bb4 17. Bg2 dxc4 18. O-O Bxd2 19.
    Qxd2 Qd6 (19... Bd5 20. Bc3 $15) 20. d5 (20. Rc1 Bd5 $15) 20... Rf7 $17 (20...
    exd5 $6 21. Bxf6 Qxf6 22. Qa2 $14) 21. Bxe4 exd5 22. Bg2 Rd7 (22... Nd7 23. Rd1
    $17) 23. Rd1 {Increases the pressure on d5} Qc5 (23... Qe6 24. Bd4 $15) 24. Qb2
    (24. Qa2 $5 Qf8 25. Qa7 $14) 24... c6 (24... Qf8 25. Qa2 c6 26. bxc6 Bxc6 27.
    Qc2 $15) 25. Qe5 Qd6 (25... Qf8 26. Rb1 cxb5 27. Rxb5 $11) 26. Qxd6 (26. Rb1
    Qxe5 27. Bxe5 Rd8 28. bxc6 Nxc6 $11) 26... Rxd6 27. Be5 Rd8 28. Bc7 Re8 29.
    Bxb6 (29. bxc6 $142 Bxc6 30. Bxb6 $11) 29... Nd7 (29... cxb5 $142 30. Rb1 Nd7
    31. Rxb5 Bc6 $19 (31... Nxb6 $6 32. Rxb6 Ba8 33. Rb5 $11)) 30. bxc6 $11 (30.
    bxc6 Bxc6 31. Bd4 $11) *
    
    [Event "corr SOK-87-14"]
    [Site "?"]
    [Date "1987.??.??"]
    [Round "?"]
    [White "Grund, Karl"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "60"]
    [EventDate "1987.??.??"]
    
    1. b4 f5 2. Bb2 Nf6 3. e3 e6 4. b5 Be7 5. c4 O-O 6. Nc3 c6 7. Nf3 cxb5 (7... a6
    8. bxc6 Nxc6 9. Be2 $11) 8. cxb5 d6 (8... a6 9. Be2 $11) 9. Be2 Nbd7 10. O-O
    Nb6 (10... Nc5 11. a4 $14) 11. d4 (11. Rc1 Bd7 $14) 11... Bd7 12. Qb3 h6 (12...
    f4 13. e4 $14) 13. a4 Rc8 14. a5 (14. Rfc1 Nbd5 $16) 14... Nbd5 $14 15. Nxd5
    Nxd5 16. Bc4 Nc7 (16... Rxc4 17. Qxc4 Qe8 18. Rfc1 $14) 17. Rfc1 (17. b6 axb6
    18. axb6 Na8 19. Bxe6+ Bxe6 20. Qxe6+ Kh7 $16) 17... b6 (17... Kh7 18. Ba3 $16)
    18. axb6 axb6 19. Ra7 Kf7 (19... Kh7 20. Be2 $16) 20. Bd3 g6 21. e4 (21. Bc4 $5
    $16) 21... fxe4 $14 {Black gets deadly initiative} 22. Bxe4 Nxb5 23. Rxc8 Qxc8
    24. Ra8 Qc7 25. Rxf8+ (25. d5 Rxa8 26. dxe6+ Kf8 27. Bxa8 Be8 $18) 25... Bxf8 (
    25... Kxf8 $5 26. Bxg6 Kg7 $16) 26. d5 $18 Qc5 27. dxe6+ (27. Ng5+ $1 hxg5 28.
    Qf3+ Ke8 29. dxe6 Bxe6 30. Bxg6+ Kd7 31. Qxf8 $16) 27... Bxe6 $16 28. Bxg6+ $1
    Ke7 (28... Kxg6 {Deflection from e6} 29. Qxe6+ {A classical mating theme}) 29.
    Qa4 (29. Qd3 $142 $5 $16) 29... Bg7 $11 30. Qa8 $4 (30. Qa1 $142 $1 Bc3 31. Bd3
    $11) 30... Bxb2 $19 (30... Bxb2 31. Qe8+ Kf6 $19) 0-1
    
    [Event "corr SOK-87-08"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Rettenbacher, Wilhelm"]
    [Black "Diener, Rudolf"]
    [Result "*"]
    [PlyCount "34"]
    [EventDate "1988.??.??"]
    
    1. b4 f5 2. Bb2 Nf6 3. e3 e6 4. b5 Be7 5. Ne2 c6 6. Nd4 Qb6 7. a4 cxb5 8. axb5
    d5 9. Nc3 Bd7 (9... e5 10. Nf3 Nbd7 11. Bd3 $17) 10. Na4 Qd8 11. c4 O-O 12. c5
    Ne4 (12... e5 13. Nf3 e4 14. Nb6 axb6 15. Rxa8 exf3 16. Be5 (16. Qxf3 $6 Be6
    $11 (16... Bxc5 $2 17. Be5 $18) (16... bxc5 $143 17. Be5 $14)) 16... fxg2 17.
    Bxg2 bxc5 18. Rxb8 $16 (18. Bxb8 $143 Be6 $17)) 13. Nb3 (13. Nb6 axb6 14. Rxa8
    bxc5 $14) 13... f4 $14 14. exf4 (14. Nb6 axb6 15. Rxa8 bxc5 16. Be5 fxe3 17.
    Qg4 (17. Rxb8 exf2+ 18. Ke2 Bxb5+ 19. d3 Qxb8 $19) 17... exf2+ 18. Kd1 $16)
    14... Rxf4 $15 15. Bd4 (15. f3 Bh4+ 16. g3 Nxg3 17. hxg3 Bxg3+ 18. Ke2 Bxb5+
    19. d3 Bxa4 20. Bh3 $19) 15... Qe8 (15... e5 16. Bxe5 Rxf2 17. d3 $14) 16. g3 (
    16. Nb6 axb6 17. Rxa8 bxc5 $18) 16... Rf7 17. Qh5 $4 (17. Nb6 axb6 18. Rxa8
    bxc5 19. Be5 Nxf2 20. Rxb8 $15) 17... g6 (17... g6 18. Qe2 e5 19. Bxe5 Rxf2 $14
    ) (17... Bxb5 18. Nb6 g6 19. Bxb5 Qxb5 $15 (19... gxh5 $4 20. Bxe8 Rf3 21. Nxa8
    Rxb3 22. Ke2 $18 (22. Bxh5 $143 Nc6 23. Be3 Bxc5 $18))) *
    
    [Event "corr (year?)"]
    [Site "?"]
    [Date "????.??.??"]
    [Round "?"]
    [White "Horvath, Alexander"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "59"]
    
    1. b4 f5 2. Bb2 Nf6 3. e3 e6 4. b5 Be7 5. Bxf6 Bxf6 6. d4 O-O 7. Nd2 (7. Nf3 a6
    $15) 7... a6 (7... e5 8. dxe5 Bxe5 9. Rb1 $15) 8. Ngf3 b6 9. Bd3 Bb7 (9... axb5
    10. Bxb5 c6 11. Be2 $15) 10. e4 (10. c4 Be7 $11) 10... fxe4 11. Nxe4 (11. bxa6
    Nxa6 (11... exf3 $143 12. axb7 Ra7 13. Nxf3 $11) 12. Bxe4 d5 $17) 11... axb5
    12. Ne5 (12. Qb1 Nc6 13. c3 b4 $17) 12... c5 (12... Bxe5 $142 $5 13. dxe5 Nc6
    $19) 13. Nd6 $17 {The mate threat is Bxh7} Bxe5 (13... Bxg2 $4 14. Bxh7+ Kxh7
    15. Qh5+ Kg8 16. Ng6 Bxh1 17. Qh8#) 14. Qh5 {Threatening mate... how?} g6 (
    14... Bxd6 $4 15. Bxh7+ Kh8 16. Bg6+ Kg8 17. Qh7#) 15. Qxe5 Bd5 16. Qg3 (16.
    dxc5 $5 bxc5 17. Bxb5 Bxg2 18. Rg1 $17) 16... Qf6 $17 (16... cxd4 $6 17. Bxg6
    Qf6 18. Be4+ Kh8 19. Bxd5 exd5 20. O-O $11) 17. O-O (17. Nxb5 Nc6 $17) 17...
    Qxd4 (17... c4 $5 18. Be2 Nc6 $17) 18. Nxb5 Qf4 19. Qxf4 Rxf4 20. Nc3 (20. Nc7
    Ra7 21. Nxd5 exd5 $15) 20... Nc6 $17 21. Nxd5 (21. Rfb1 c4 22. Be2 Nd4 $17)
    21... exd5 $19 22. c3 Ra3 23. Rfc1 Ne5 {Black plans c4} (23... d4 24. g3 Rf6
    25. Bc4+ Kg7 26. cxd4 Nxd4 27. Rab1 $19) 24. Bb5 c4 25. Rc2 (25. Kf1 Rh4 $19)
    25... Kf7 (25... d4 26. cxd4 Rxd4 27. Kf1 $19) 26. Re1 Re4 {
    Threatening mate: Rxe1} 27. Rd1 Ke6 28. Kf1 Rf4 29. f3 (29. h3 Nd3 $19) 29...
    Rf8 30. Ke2 (30. Re1 Kd6 $19) 0-1
    
    [Event "corr DDR"]
    [Site "?"]
    [Date "1989.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Drescher, Wolfgang"]
    [Result "1/2-1/2"]
    [PlyCount "81"]
    [EventDate "1989.??.??"]
    
    1. b4 f5 2. Bb2 Nf6 3. Bxf6 exf6 4. c3 d5 5. e3 Bd6 6. Bd3 c6 7. Qh5+ g6 8. Qh6
    Bf8 9. Qh4 Bg7 (9... Nd7 10. Be2 $11) 10. Ne2 Qe7 11. Na3 (11. O-O Nd7 $11)
    11... Nd7 12. f4 a5 13. Nc2 O-O 14. h3 c5 15. bxc5 Nxc5 (15... Qxc5 $143 16. g4
    $16) 16. Nc1 Nxd3+ 17. Nxd3 Qe4 18. Ke2 b6 (18... Qxg2+ $143 19. Nf2 d4 20.
    Nxd4 $11) 19. Nde1 Ba6+ 20. Kf2 g5 (20... Rfe8 21. Nd4 $11) 21. Qg3 $11 Rae8
    22. Nd4 (22. fxg5 $143 f4 23. exf4 fxg5 24. Qxg5 Rf5 $17) 22... Kh8 23. h4 (23.
    fxg5 fxg5 24. Nec2 Qd3 $19) 23... gxf4 24. Qxf4 (24. exf4 $143 Bh6 25. d3 Qxf4+
    26. Qxf4 Bxf4 $15) 24... Qxf4+ 25. exf4 Re4 26. g3 Rfe8 27. Nec2 (27. Rb1 $5
    Bf8 28. Rxb6 $16) 27... Bf8 $11 28. Ne3 (28. Nxf5 Re2+ 29. Kg1 Bc5+ 30. Ncd4
    Bd3 $19) 28... Bc5 29. Ndxf5 (29. Nxd5 $143 Re2+ 30. Kg1 Bb7 $19) 29... Bc8 {
    Black prepares the advance d4} (29... Bd3 $5 $11) 30. Kf3 d4 31. cxd4 Bxd4 32.
    Nxd4 Rxd4 33. Rhd1 Bb7+ 34. Kf2 Red8 35. Ke2 Ba6+ 36. Ke1 Bb7 (36... Rg8 37.
    Kf2 Rgd8 38. Nf1 $11) 37. Nf1 Bg2 38. Nh2 Rd3 39. Rab1 R8d6 40. g4 (40. Rb2
    $142 $5 $11) 40... Rh3 $17 41. Kf2 (41. Nf1 Rxh4 42. Ne3 Bf3 $17) 1/2-1/2
    
    [Event "corr ICCF WT-M-742"]
    [Site "?"]
    [Date "1998.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Dege"]
    [Result "*"]
    [PlyCount "93"]
    [EventDate "1998.??.??"]
    
    1. b4 Na6 2. b5 (2. a3 d5 $11) 2... Nc5 (2... Nb4 3. e4 Nf6 (3... c5 4. a3 Qa5
    5. Nc3 d5 6. Bb2 Nxc2+ 7. Qxc2 d4 8. Na4) (3... d5 4. a3 Nf6 5. axb4 dxe4 6.
    Nc3 e5 7. Ba3 Be7 8. d3) (3... g6 4. Bb2 Nf6 5. a3 d5 6. axb4 dxe4 7. Be5 Bh6
    8. Nc3) 4. a3 $18 Nxe4 5. Nc3 g6 6. Nxe4 Bg7 7. c3 Nd5 8. Nf3) 3. d4 (3. Nf3 d5
    (3... a6 4. Nc3 (4. d4 Ne4 5. Qd3 Ngf6 6. Nbd2 d5 7. Ne5 Nd6 8. b6) 4... Nf6 5.
    d4 Nce4 6. Qd3 Nxc3 7. Qxc3 axb5 8. Qb3) (3... Nf6 4. Nc3 (4. Ba3 d6 5. e3 Nce4
    6. d3 Nc5 7. Nc3 a6 8. d4) (4. e3 d5 5. Nc3 e6 6. Ba3 Bd6 7. Bxc5 Bxc5 8. Bd3)
    4... a6 5. e3 axb5 6. Bxb5 c6 7. Be2 d6 8. O-O) (3... e6 4. Nc3 Nf6 5. Bb2 a6
    6. e3 axb5 7. Bxb5 c6 8. Be2) 4. Nc3 (4. Ba3 e6 5. Nc3 Nf6 6. e3 Bd6 7. Bxc5
    Bxc5 8. Bd3) (4. Bb2 Nf6 5. Bd4 e6 6. Nc3 Bd6 7. g3 O-O 8. Bg2) 4... Nf6 5. Ba3
    Nce4 6. Ne5 a6 7. e3 Nxc3 8. dxc3) (3. Nc3 Nf6 4. e3 (4. Nf3 a6 5. e3 axb5 6.
    Bxb5 c6 7. Be2 d6 8. O-O) (4. d4 Nce4 5. Nxe4 Nxe4 6. f3 Nc3 7. Qd3 Nd5 8. a3)
    4... e6 5. Nf3 d5 6. Ba3 Bd6 7. Bxc5 Bxc5 8. Bd3) 3... Ne6 (3... Ne4 4. f3 Nef6
    5. e4 $14 e6 6. Kf2 Nh6 7. Nc3 d5 8. Nge2) 4. e3 (4. Nf3 Nf6 5. Nc3 g6 6. e3
    Bg7 7. Bd3 O-O 8. O-O) (4. Nc3 Nf6 5. Nf3 g6 6. e3 Bg7 7. Bd3 O-O 8. O-O) 4...
    Nf6 (4... g6 5. Nf3 Nf6 6. Nc3 d6 7. Ba3 Bg7 8. Bc4) 5. Nf3 (5. Nc3 d5 6. Nf3
    g6 7. Ba3 c5 8. bxc6) 5... g6 6. c4 (6. Nc3 Bg7 7. Bd3 d5 8. Ba3) 6... d6 (6...
    a6 7. Nc3 Bg7 8. Bd3) 7. Nc3 Bg7 8. Rb1 (8. Bd3 $11 {-0.15/9}) 8... O-O 9. Be2
    (9. Bd3 a6 $11) 9... Nd7 (9... a6 10. O-O $11) 10. Bb2 (10. O-O a6 $14) 10...
    f5 (10... a6 11. bxa6 Rxa6 12. O-O $14) 11. g3 (11. O-O a6 $14) 11... Nf6 12.
    Qb3 c5 13. d5 Nc7 14. O-O b6 15. Rfd1 Qe8 (15... Qd7 16. a4 $14) 16. Rd2 (16.
    a3 Bd7 $14) 16... Bb7 17. Rbd1 (17. a4 Qd7 $11) 17... Rb8 (17... a6 18. bxa6
    Rxa6 19. h3 $11) 18. h4 a6 19. a4 a5 20. Ng5 (20. Qc2 Ne4 21. Nxe4 fxe4 22.
    Bxg7 Kxg7 $16) 20... Bc8 (20... h6 21. Nf3 $11) 21. Bf3 (21. Bd3 h6 22. Nf3 Qf7
    $11) 21... h6 (21... Qd7 22. Qc2 $14) 22. Nh3 $14 Qf7 23. Qc2 (23. Nf4 Bd7 $14)
    23... Bd7 (23... Ne4 24. Rd3 $11) 24. Kg2 (24. Nf4 Rbe8 $14) 24... Rbd8 25. Ne2
    Ng4 (25... Ne4 26. Bxg7 Qxg7 27. Rd3 $14) 26. Bxg7 $14 Qxg7 27. Bxg4 (27. Kg1
    $5 $14) 27... fxg4 $11 28. Nhf4 Rf5 (28... Rf6 29. h5 $11) 29. Nc3 Rdf8 30. e4
    Re5 31. Re1 g5 (31... Qf6 32. Qd3 $15) 32. Nd3 $14 gxh4 33. Nxe5 h3+ 34. Kh2
    Qxe5 35. Nd1 Rf3 36. Rd3 Ne8 (36... Rf8 $142 $5 $14) 37. Rxf3 $18 gxf3 38. Qc3
    (38. Qd3 Bg4 $18) 38... Bg4 (38... Qxc3 $142 $5 39. Nxc3 Nf6 $16) 39. Qxe5 dxe5
    40. Ne3 (40. Nb2 Nd6 $16) 40... h5 41. Nf1 Nd6 42. Nd2 Nf7 (42... e6 $5 $16)
    43. Re3 $18 Ng5 44. Rd3 Kf8 45. d6 Ke8 46. dxe7 (46. Rd5 $5 Nf7 47. d7+ Kd8 48.
    Rd3 $18) 46... Kxe7 $14 47. Rd5 (47. Rd5 Nf7 48. Nb3 $14) (47. Kh1 Be6 $14) *
    
    [Event "corr 3GMM-23"]
    [Site "?"]
    [Date "1995.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Wilk, K."]
    [Result "1-0"]
    [PlyCount "23"]
    [EventDate "1995.??.??"]
    
    1. b4 Nf6 2. Bb2 d5 3. e3 e6 4. a3 c5 5. bxc5 Bxc5 6.
    d4 Be7 7. Nf3 b6 (7... Qb6 8. Qc1 Bd7 9. Nbd2 Nc6 10. c4 Rc8 11. c5 Qc7 12. Bd3
    O-O 13. O-O Nh5 14. g4 Nf6 15. h3 b6 16. Qc3 Na5 17. Rfc1 bxc5 18. dxc5 Ne8 19.
    Ne5 Bf6 20. Ndf3 Rb8 21. Rc2 Ba4 22. Re2 {
    Kukel,I (2010)-Danko,D/SVK-chT3B 1999/1-0}) 8. Nbd2 $146 (8. c4 dxc4 9. Bxc4
    O-O 10. O-O Ba6 11. Bxa6 Nxa6 12. Qd3 Nc7 13. Nbd2 Rc8 14. Rab1 Ncd5 15. Rfc1
    Qd6 16. g3 Qb8 17. e4 Nc7 18. Kg2 Qb7 19. h3 Rfd8 20. Rc3 Nce8 21. Rbc1 Rxc3
    22. Bxc3 Rc8 {futsalboy (1740)-peter03 (1815)/kurnik 2011/0-1 (44)}) 8... O-O
    9. c4 Ba6 10. Rc1 Nbd7 11. Qa4 dxc4 $4 (11... Nb8 $142 $11) 12. Qxa6 $18 1-0
    
    [Event "corr ICCF WT-M-GT-216"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Harriman, A."]
    [Result "*"]
    [PlyCount "65"]
    [EventDate "1988.??.??"]
    
    1. b4 Nf6 2. Bb2 e6 3. a3 b6 (3... d5 4. Nf3 $11) 4. c4 (4. Nf3 Bb7 $11) 4...
    Bb7 5. e3 (5. Nc3 a5 6. b5 Be7 $11) 5... d6 (5... a5 6. b5 $15) 6. d4 (6. Nf3
    Be7 $11) 6... Nbd7 (6... a5 7. bxa5 Rxa5 8. Nf3 $11) 7. Nf3 c5 (7... d5 8. Nbd2
    $11) 8. Nc3 (8. Bd3 cxb4 9. axb4 a5 $14) 8... cxd4 (8... a5 9. bxc5 bxc5 10.
    Bd3 $14) 9. Nxd4 Be7 (9... a5 10. f3 $11) 10. Ndb5 (10. Be2 O-O 11. O-O a6 $14)
    10... Ne5 $11 11. Qa4 (11. f4 Nc6 $11) 11... Bc6 (11... O-O 12. Rd1 Bc6 13. Qc2
    $11) 12. Qa6 $11 Qb8 (12... Qd7 13. Rd1 O-O 14. c5 $11) 13. Nd4 Qb7 14. Qxb7
    Bxb7 15. Ncb5 (15. f4 Neg4 16. Nc2 Ne4 $15) 15... O-O $15 16. Nb3 (16. Rc1 $15)
    16... Rfd8 (16... a6 17. N5d4 $15) 17. f3 (17. c5 bxc5 18. bxc5 Ng6 19. cxd6
    Bxd6 20. Nxd6 Rxd6 $14) 17... Rd7 (17... a6 18. N5d4 $15) 18. Be2 (18. c5 bxc5
    19. Bxe5 dxe5 20. Nxc5 (20. bxc5 $143 Bd5 $17) 20... Bxc5 21. bxc5 $11) 18...
    a6 $15 19. Nc3 Rc7 20. Na4 (20. Nd2 Bc6 $11) 20... Nxc4 {
    Black gets strong play along the open c-file} 21. Rc1 Rac8 22. Rxc4 Rxc4 23.
    Nxb6 (23. Bxc4 $143 Rxc4 24. Nxb6 Rc2 25. Bxf6 Bxf6 $17) 23... Rc2 24. Nxc8
    Bxc8 (24... Rxc8 $143 25. Na5 Ba8 26. Kd2 $16 (26. Bxa6 $6 Rc2 27. Bxf6 Bxf6
    $11)) 25. Bc1 (25. Bxf6 Bxf6 26. Kd1 Rc3 $19) 25... Nd5 (25... d5 26. Kd1 Ra2
    27. Nc5 $11) 26. Kf2 Bf6 27. Rd1 Rxe2+ (27... Be5 28. Bd2 $15) 28. Kxe2 Nc3+
    29. Ke1 (29. Kd2 Nxd1 30. Kxd1 Be5 $11) 29... Nxd1 30. Kxd1 Bd7 (30... Be5 31.
    h3 $11) 31. Kc2 Ba4 (31... Be5 32. f4 Bf6 33. e4 $11) 32. Bb2 Bg5 33. Bd4 (33.
    f4 Bh4 $11) *
    
    [Event "corr ICCF EU-M-1205"]
    [Site "?"]
    [Date "1999.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Weber, T."]
    [Result "1-0"]
    [PlyCount "91"]
    [EventDate "1999.??.??"]
    
    1. b4 Nf6 2. Bb2 e6 3. a3 b6 (3... d5 4. Nf3 $15) 4. e3 Bb7 5. Nf3 c5 6. bxc5
    Bxc5 7. d4 Be7 8. c4 O-O 9. Nc3 d6 (9... d5 10. cxd5 Nxd5 11. Bd3 $11) 10. Be2
    (10. Bd3 Nbd7 $11) 10... Nbd7 11. O-O e5 (11... d5 12. cxd5 Nxd5 13. Rc1 $11)
    12. Re1 (12. Qc2 Rc8 $11) 12... a6 (12... Rc8 13. Qa4 $11) 13. Qb3 (13. Qc2 Rc8
    $14) 13... Ra7 (13... Rc8 14. Rec1 $11) 14. Rad1 Qa8 {Black plans e4} (14...
    Qc7 15. Rc1 $14) 15. Na4 (15. dxe5 dxe5 16. Nd5 Nxd5 17. cxd5 e4 $14) 15... e4
    16. Nd2 Rb8 17. Rb1 (17. Nc3 b5 18. cxb5 axb5 19. Bxb5 d5 $14) 17... b5 $11 18.
    Nc3 bxc4 19. Qxc4 Rc8 20. Qb3 a5 (20... Bc6 21. Rf1 $11) 21. Rec1 a4 22. Qc2 (
    22. Qd1 d5 $14) 22... d5 $11 23. Bb5 {
    Increasing the pressure on the isolated pawn on a4} Ba6 24. Bf1 (24. Qxa4 Bxb5
    25. Qxb5 Bd6 $11) 24... Rac7 (24... Bxf1 25. Rxf1 Bd6 26. f3 $15) 25. Bxa6 (25.
    Qxa4 Bxf1 26. Qxa8 Rxa8 27. Nxf1 Rac8 $14) 25... Qxa6 $15 26. Qxa4 Qxa4 (26...
    Qd3 $5 27. Qc2 Qxc2 28. Rxc2 Bxa3 29. Bxa3 Rxc3 30. Rxc3 Rxc3 $15) 27. Nxa4 $14
    Rxc1+ (27... Kf8 28. Rxc7 Rxc7 29. Nc3 $14) 28. Rxc1 $16 Rxc1+ 29. Bxc1 Kf8 (
    29... h6 30. f3 $16) 30. Kf1 (30. f3 exf3 31. gxf3 Nb8 $16) 30... Ke8 (30...
    Bd6 31. h3 $16) 31. Ke2 Kd8 (31... Bd6 32. h3 $16) 32. f3 Kc7 (32... Bd6 33. h3
    $16) 33. Kd1 (33. Nc3 exf3+ 34. gxf3 Kc6 $18) 33... Kc6 (33... exf3 34. gxf3
    Bd6 35. h3 $16) 34. Nc3 Bd6 (34... exf3 35. gxf3 Bd6 36. h3 $16) 35. h3 (35.
    fxe4 Nxe4 36. Ndxe4 dxe4 37. Nxe4 Bxh2 $18) 35... exf3 $16 36. gxf3 h5 (36...
    g5 37. e4 $18) 37. Kc2 (37. e4 Bf4 $18) 37... g5 38. Kd3 (38. e4 Bf4 $18) 38...
    g4 39. hxg4 h4 (39... hxg4 40. fxg4 Nxg4 41. e4 Nf2+ 42. Ke2 Nxe4 43. Ndxe4
    dxe4 44. Nxe4 $16) 40. Ke2 (40. g5 h3 41. Nf1 Nh5 $18) 40... Nf8 (40... h3 41.
    Kf2 $18) 41. Kf2 Ng6 (41... Ne6 42. Kg2 $18) 42. Kg2 Bg3 (42... Nh7 43. Kh1 $18
    ) 43. Nf1 (43. Nb3 Bd6 $18) 43... Bc7 44. Kh3 Nh7 (44... Ba5 45. Na2 $18) 45.
    f4 (45. e4 dxe4 46. fxe4 f6 $18) 45... Bd8 46. Nd2 (46. Nd2 Ba5 47. Bb2 $18)
    1-0
    
    [Event "corr SOK-99-133"]
    [Site "?"]
    [Date "1999.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Graefrath"]
    [Result "1/2-1/2"]
    [PlyCount "52"]
    [EventDate "1999.??.??"]
    
    1. b4 Nf6 2. Bb2 e6 3. a3 d5 4. e3
    Bd6 5. d4 (5. Nc3 e5 $15) 5... Nbd7 (5... O-O 6. Bd3 $15) 6. Nf3 Qe7 (6... a5
    7. b5 $15) 7. c4 (7. Bd3 a5 $11) 7... c6 (7... dxc4 8. Qa4 $11) 8. Nbd2 (8. c5
    Bc7 $11) 8... O-O 9. Qc2 (9. Bd3 b6 $11) 9... e5 10. Be2 (10. cxd5 exd4 11.
    Bxd4 cxd5 $11) 10... e4 $15 11. Nh4 g6 (11... Qe6 12. O-O $15) 12. g3 (12. O-O
    Ne8 13. g3 Qg5 $11) 12... Ne8 (12... Qe6 13. cxd5 cxd5 14. Rc1 $15) 13. Bg4 (
    13. O-O Qg5 $11) 13... f5 14. Be2 Ng7 (14... f4 15. exf4 Bxf4 16. Rc1 $15) 15.
    Qb3 (15. O-O a5 $11) 15... Nf6 16. O-O-O (16. O-O $5 $11) 16... dxc4 17. Bxc4+
    (17. Nxc4 Be6 18. Qc2 Bc7 $17) 17... Be6 18. h3 (18. Ng2 a5 19. Nf4 Bxf4 20.
    gxf4 b5 21. Bxe6+ Nxe6 $17) 18... Nd5 19. Bxd5 (19. b5 Rac8 20. Kb1 Qd7 $17)
    19... Bxd5 $19 20. Qc3 a5 21. bxa5 Qf7 (21... Ne6 22. Ng2 $19) 22. Kc2 (22.
    Rdf1 Qc7 $19) 22... Ra6 23. Ra1 Rfa8 (23... g5 24. Ng2 $19) 24. Nb3 (24. Kd1
    Rxa5 25. Ke1 Qd7 $19) 24... Bxb3+ (24... g5 $5 25. Ng2 Qe6 $19) 25. Qxb3 $17
    Qxb3+ (25... Ne6 26. Kd1 $17) 26. Kxb3 Rxa5 1/2-1/2
    
    [Event "corr ICCF"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Yefimov"]
    [Result "1/2-1/2"]
    [PlyCount "85"]
    [EventDate "1985.??.??"]
    
    1. b4 Nf6 2. Bb2 e6 3. b5 a6 4. a4 axb5 5. axb5 Rxa1 6. Bxa1 c6 7. e3 $11 d5 8.
    c4 Nbd7 9. Nf3 $11 Qa5 (9... Bd6 10. d4 $11) 10. Nc3 (10. Bc3 Bb4 $11) 10...
    Nb6 11. cxd5 cxd5 12. Be2 Bd6 13. O-O O-O (13... Bd7 14. Qb3 $11) 14. Qb1 (14.
    Qb3 e5 $11) 14... Bd7 (14... e5 15. Rc1 $15) 15. e4 $11 Be7 16. Bd3 g6 (16...
    dxe4 17. Nxe4 Nfd5 18. Be5 $11) 17. Qb2 (17. e5 Nh5 $14) 17... Ba3 $14 18. Qb3
    Qb4 19. Qxb4 Bxb4 20. Na2 (20. e5 Nh5 21. Ne2 Nc4 $11) 20... Be7 21. e5 Ne4 (
    21... Nh5 22. Rb1 $11) 22. Bd4 (22. Nc3 Nxc3 23. Bxc3 Nc4 $11) 22... Nc4 $15
    23. Bxc4 dxc4 24. Rb1 Ra8 25. Nc3 Nxc3 26. Bxc3 Kg7 27. Kf1 g5 28. g4 Kg6 29.
    Ke2 Ra3 (29... h5 30. h3 $15) 30. Nd4 f6 31. Nc6 $2 (31. b6 $142 $5 $15) 31...
    bxc6 $19 32. b6 {The passed pawn on b6 quickly leads to threats} Ra8 33. b7 Rb8
    34. Ba5 Bc8 (34... fxe5 $143 35. Bc7 Rxb7 36. Rxb7 $16) 35. bxc8=Q {
    Threatening mate... how?} Rxc8 36. Rb7 Bc5 (36... Re8 37. Bc3 $11) 37. exf6
    Kxf6 38. Rxh7 Bd4 (38... Kg6 39. Rb7 $11) 39. Rh6+ $14 Kf7 40. h4 gxh4 41. Rxh4
    Ra8 42. Rh5 c5 43. Bc3 1/2-1/2
    
    [Event "corr ICCF"]
    [Site "?"]
    [Date "1986.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Soegaard, Ove"]
    [Result "0-1"]
    [PlyCount "62"]
    [EventDate "1986.??.??"]
    
    1. b4 Nf6 2. Bb2 g6 3. c4 Bg7 4. e3 O-O 5. Nf3
    b6 6. Be2 c5 7. b5 (7. a3 Nc6 8. b5 (8. Qb3 d6 9. O-O e5 10. d3 h6 11. Nc3 Be6
    12. Nd2 Rb8 13. Bf3 Qd7 14. b5 Ne7 15. Nde4 Nh7 16. Nd5 Nxd5 17. cxd5 Bf5 18.
    Ng3 Bg4 19. Bxg4 Qxg4 20. f4 exf4 21. Rxf4 Qg5 22. Bxg7 Kxg7 {
    Espig,L (2350)-Borriss,M (2460)/8. ch-Euro Dresden GER 2007/1/2-1/2}) 8... Na5
    9. d3 Bb7 10. Nbd2 e6 11. O-O d6 12. Qc2 Qe7 13. Bc3 Nd7 14. d4 a6 15. a4 Rfc8
    16. Qb2 Qd8 17. Rac1 Ra7 18. Rfd1 cxd4 19. Bxd4 e5 20. Bc3 Nc5 21. Bxa5 bxa5 {
    Timofeev,A (2520)-Inarkiev,E (2465)/White Nights, St Petersburg RUS 2001/1/2-1/
    2 (44)}) 7... a6 8. Nc3 $146 (8. O-O axb5 9. cxb5 Bb7 10. a4 d6 11. d3 Nbd7 12.
    Nbd2 Qc7 13. Re1 d5 14. Bf1 e5 15. e4 Rfe8 16. Qc2 h6 17. g3 Nh7 18. Bg2 dxe4
    19. dxe4 Nhf8 20. Bh3 Ne6 21. Bxe6 Rxe6 22. Nc4 Nf8 {
    Kiik,K (2445)-Cheutshenko,R (2345)/ch-EST, Tallinn EST 2000/1-0 (41)}) 8... d5
    9. Qb3 d4 10. exd4 cxd4 11. Na4 (11. Nb1 $5 axb5 12. cxb5 $15) 11... axb5 $17
    12. cxb5 Ne8 13. Rc1 Bb7 14. O-O Bd5 15. Bc4 Bxc4 (15... Bxf3 $142 $5 16. gxf3
    Nd6 $17) 16. Rxc4 {d4 draws heavy fire} e5 17. Rfc1 (17. Ba3 Nd6 18. Bxd6 Qxd6
    $11) 17... Nd6 $15 18. Rb4 Nb7 19. Qc2 Nd7 20. Ba3 Na5 (20... Re8 21. Bb2 $15)
    21. Rbb1 Re8 22. Bd6 (22. d3 Nb7 $15) 22... e4 $17 23. Ne1 Rc8 24. Qd1 Nc4 25.
    Bf4 Qf6 26. Qg4 Qe6 27. Qxe6 fxe6 (27... Rxe6 $143 28. Rb4 Nd6 29. Rc6 $16) 28.
    Rb4 Na5 (28... Nce5 29. Rbb1 Rxc1 30. Rxc1 $17) 29. Rc7 $11 e5 30. Rxc8 $4 (30.
    Rxd7 Rc1 31. Kf1 exf4 32. Nxb6 $17) 30... Rxc8 $19 31. Bg5 Rc1 (31... Rc1 32.
    Kf1 Bf8 $19) 0-1
    
    [Event "postal year?"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Krause"]
    [Result "*"]
    [PlyCount "28"]
    [EventDate "1985.??.??"]
    
    1. b4 Nf6 2. Bb2 g6 3. c4 Bg7 4. e3 d6 5. Nf3 O-O 6. d4 Nbd7 7. Be2 e5 8. Nc3
    c6 9. O-O e4 10. Nd2 Re8 (10... d5 11. cxd5 {
    eddieteijeiro (2160)-einaar (2430)/net-chess.com 2008} (11. Qc2 Re8 12. h3 Nf8
    13. b5 h5 14. Rab1 h4 15. bxc6 bxc6 16. Rfc1 g5 17. Ba3 g4 18. cxd5 cxd5 19.
    Nb5 gxh3 20. Nc7 Bf5 21. Nxa8 Qxa8 22. Qc7 hxg2 23. Qf4 Be6 24. Qxh4 Ng6 25.
    Qg3 Rc8 {pierre-anony/1-0})) 11. a4 Nf8 $146 (11... d5 12. b5 Nf8 13. a5 a6 14.
    bxc6 bxc6 15. Nb3 Ne6 16. Qc2 Nc7 17. Na4 Bg4 18. Bxg4 Nxg4 19. h3 Nh6 20. Rfc1
    Ra7 21. Ba3 Ne6 22. cxd5 cxd5 23. Qc6 Nf5 24. Nc3 Nc7 25. Bc5 Re6 26. Qa4 {
    Galliamova,A (2250)-Ladner,K/Wch U20 Girls 1988/1-0 (84)}) 12. b5 h5 (12... c5
    13. dxc5 dxc5 14. Qc2 $14) 13. a5 $16 a6 14. Na4 (14. Qa4 Bd7 $16) 14... Bf5 *
    
    [Event "corr I.Dzuris"]
    [Site "?"]
    [Date "1969.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Balaz, S."]
    [Result "1/2-1/2"]
    [PlyCount "77"]
    [EventDate "1969.??.??"]
    
    1. b4 Nf6 2. Bb2 g6 3. c4 Bg7 4. Nf3 O-O 5. g3 b6 6. Bg2 Bb7 7. O-O d6 8. d3
    Nbd7 9. Nbd2 e5 10. Qc2 Re8 11. Rfd1 a5 12. a3 h6 13. Nf1 c5 (13... e4 14. dxe4
    Bxe4 15. Qd2 $11) 14. b5 Nf8 15. e3 Qc7 16. d4 Be4 {Black gets in control} 17.
    Qc1 N6d7 (17... cxd4 $142 18. exd4 N8d7 $11) 18. Nxe5 $4 (18. N1d2 $142 Bb7 19.
    dxe5 dxe5 20. Qc2 $11) 18... Bxg2 $17 19. Nxd7 Bxf1 20. Nxf8 Bh3 21. dxc5 dxc5
    (21... Rxf8 $6 22. Bxg7 Kxg7 23. cxd6 $11) (21... Bxf8 $143 22. Qc3 f6 23. Qxf6
    $14) 22. Bxg7 Kxg7 23. Qb2+ Kg8 24. Nxg6 fxg6 25. Qf6 Bf5 26. Rd6 Rf8 27. Qe5
    Qf7 28. Qd5 Qxd5 29. cxd5 Rad8 30. Rxb6 Rxd5 31. g4 Bd3 32. a4 Rc8 (32... c4
    33. Rc1 $17) 33. Re1 (33. Ra6 $5 $15) 33... c4 34. e4 Rg5 (34... Rd4 $142 $5
    35. Rxg6+ Kh7 $19) 35. h3 c3 (35... Rf8 36. Ra6 $15) 36. f4 c2 (36... Rgc5 $5
    37. Rxg6+ Kf7 $15) 37. fxg5 $14 Bxe4 38. Rc1 (38. Rxe4 {A deflection} c1=Q+)
    38... Rd8 39. Rf6 1/2-1/2
    
    [Event "corr 3GMM-11"]
    [Site "?"]
    [Date "1995.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Law"]
    [Result "*"]
    [PlyCount "43"]
    [EventDate "1995.??.??"]
    
    1. b4 Nf6 2. Bb2 g6 3. e3 Bg7 4. Nf3 O-O 5. c4 d6 6. d4 e6 7. Qb3 (7. Nc3 Nc6
    $11) 7... Qe7 (7... a5 8. b5 $11) 8. Be2 $11 Nbd7 9. Nc3 c6 (9... b6 10. O-O
    $11) 10. O-O $14 e5 11. Rfe1 e4 12. Nd2 Re8 13. f3 exf3 14. Bxf3 Nf8 15. h3 {
    White plans d5} (15. d5 Bg4 $11) 15... h5 (15... Ne6 16. h4 $11) 16. d5 (16. b5
    Bd7 $14) 16... cxd5 17. cxd5 (17. Nxd5 Nxd5 18. Bxg7 Kxg7 19. Bxd5 Be6 $11)
    17... Bd7 $11 18. b5 (18. Rac1 N8h7 $11) 18... N8h7 $15 19. Ba3 (19. Nc4 $5 Ng5
    20. Be2 $11) 19... Ng5 $17 20. e4 (20. h4 Nxf3+ 21. gxf3 Nh7 $17) 20... Nxf3+ (
    20... Qe5 21. h4 Nxf3+ 22. Nxf3 Qf4 $19) 21. Nxf3 $15 Nh7 (21... Qd8 $142 $5
    22. Rac1 Rc8 $17) 22. e5 $14 (22. e5 Ng5 23. Nxg5 (23. Bxd6 $2 Nxf3+ 24. gxf3
    Qg5+ 25. Kh1 Qh4 $19) 23... Qxg5 24. e6 (24. exd6 Bxh3 25. Qb2 Bxc3 26. Rxe8+
    Rxe8 $19) 24... Bxc3 25. exf7+ Kxf7 26. Qxc3 Qxd5 27. Rf1+ Kg8 28. Rad1 $11) *
    
    [Event "DDR-ch M781 corr"]
    [Site "?"]
    [Date "1985.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Franke, Roland"]
    [Result "0-1"]
    [PlyCount "114"]
    [EventDate "1985.??.??"]
    
    1. b4 Nf6 2. Bb2 g6 3. Nf3 Bg7 4. c4 O-O 5. e3 d6 6. d4 e5 7. Be2 Nbd7 8. Nc3
    a5 (8... Re8 9. Qb3 e4 10. Nd2 h5 11. a4 Nf8 12. h3 h4 13. b5 Bf5 14. a5 a6 15.
    bxa6 bxa6 16. Qc2 Ne6 17. Nb3 Nd7 18. Bg4 Bxg4 19. hxg4 Ng5 20. Kf1 Rb8 21. Rd1
    Qc8 22. Ba3 Nf6 23. Rxh4 {
    Kushch,N (2375)-Arzumanian,G (2360)/Marganets it UKR 1999/1-0 (45)}) (8... e4
    9. Nd2 Re8 10. Qc2 Qe7 11. O-O Nf8 12. a4 h5 13. h3 Bf5 14. Rac1 Ne6 15. d5 Ng5
    16. Nb5 Nxh3+ 17. gxh3 Bxh3 18. Rfd1 Ng4 19. Bxg4 Qg5 20. Nxe4 Bxg4 21. Nxg5 {
    1-0 pumpkin (2280)-sbibby (2000)/net-chess.com 2008}) 9. b5 $146 (9. a3 b6 10.
    O-O Bb7 11. Qc2 Re8 12. Rac1 (12. Rad1 exd4 13. Nxd4 axb4 14. axb4 Ne4 15. Bf3
    Nxc3 16. Bxc3 Bxf3 17. Nxf3 Bxc3 18. Qxc3 Qf6 19. Nd4 Ra2 20. Rd2 Rxd2 21. Qxd2
    Ra8 22. h3 Nf8 23. f4 Ne6 24. f5 Nxd4 25. fxg6 Qxg6 26. exd4 Ra3 {
    Vasut,K (2135)-Vlk,M (2115)/CZE-chT2d 2004/0-1 (70)}) 12... Qc8 13. Rfd1 exd4
    14. Nxd4 Ne5 15. h3 Nc6 16. Nd5 Nxd4 17. Bxd4 Nd7 18. Bxg7 Kxg7 19. Qc3+ Kg8
    20. Bg4 f5 21. Be2 Kf7 22. c5 axb4 23. axb4 Bxd5 {
    Rodgaard,J (2360)-Hirtsgaard,N/Politiken Cup 1989/1-0 (61)}) 9... c5 10. dxe5
    dxe5 11. Qd6 Re8 12. Rd1 Bf8 13. Qd2 b6 14. Nd5 Ne4 15. Qc2 f5 16. g4 $1 Ndf6 (
    16... fxg4 17. Qxe4 {Deflection}) 17. Nxe5 Nxd5 18. Rxd5 Qh4 19. Bf3 Ng5 20.
    Rd3 Nxf3+ 21. Nxf3 Qe7 (21... Qxg4 $4 22. Qc3 Qd4 23. Nxd4 $18) 22. Qc3 Bg7 23.
    Qxg7+ Qxg7 24. Bxg7 Bb7 25. Ng5 Bxh1 26. Rd7 Rab8 (26... Rad8 $142 $5 27. Ra7
    Rb8 (27... fxg4 $4 28. Bf6 Re5 29. Bxe5 $18) 28. gxf5 gxf5 $15) 27. gxf5 gxf5
    28. Bc3 Rb7 29. Nxh7 Rxd7 30. Nf6+ Kf7 31. Nxd7 Re6 32. Ke2 Ke7 33. Ne5 Rh6 34.
    Nd3 Rxh2 35. Be5 Rh3 36. Bf4 Bf3+ 37. Kd2 Be4 38. Nb2 Rh1 39. Bc7 Ra1 40. Bxb6
    Rxa2 41. Bxc5+ Kd7 42. Kc3 a4 43. f4 a3 44. Na4 Rc2+ 45. Kb3 a2 46. Bd4 Rd2 47.
    Be5 (47. Nc5+ $142 Kd6 48. Nxe4+ fxe4 49. Be5+ Kc5 50. f5 $11) 47... Bc2+ $17
    48. Kxa2 Bxa4+ 49. Ka3 Bd1 50. Kb4 Rd3 51. c5 Rb3+ (51... Rxe3 $6 52. c6+ Ke6
    53. b6 Rb3+ 54. Kc5 $11) 52. Kc4 Rb1 (52... Rxe3 $143 53. c6+ Kc8 54. b6 Be2+
    55. Kd5 $11) 53. b6 Bf3 54. Bg7 Kc6 55. Bf8 Rd1 56. Be7 (56. Bd6 Be4 $19) 56...
    Be2+ 57. Kb4 Ba6 0-1
    
    [Event "corr SOK-87-08"]
    [Site "?"]
    [Date "1988.??.??"]
    [Round "?"]
    [White "Diener, Rudolf"]
    [Black "Rettenbacher, W."]
    [Result "1-0"]
    [PlyCount "37"]
    [EventDate "1988.??.??"]
    
    1. b4 Nh6 2. Bb2 Rg8 3. e4 $14 e6 4. a3 b6 5. d4 Bb7 6. Nd2 f5 7. exf5 exf5 8.
    Ngf3 g5 9. Ne5 g4 10. Qe2 Qe7 11. O-O-O (11. Qe3 $5 $14) 11... d6 $15 12. Nd3
    Qxe2 13. Bxe2 Bxg2 14. Rhe1 Be7 15. Nf4 Bb7 16. Bc4 Nc6 (16... Rg5 17. Ne6 Kd7
    18. Nxg5 Bxg5 19. Be6+ Kd8 20. d5 $16) 17. Bxg8 Nxg8 18. Ne6 Kd7 19. Nc4 (19.
    Nc4 d5 20. Nd2 $14) (19. d5 $142 $5 Nd8 20. c4 $16) 1-0
    
    [Event "corr"]
    [Site "?"]
    [Date "1969.??.??"]
    [Round "?"]
    [White "Siska"]
    [Black "Diener, Rudolf"]
    [Result "0-1"]
    [PlyCount "60"]
    [EventDate "1969.??.??"]
    
    1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 $11 4. Bb2 O-O 5. e3 b6 6. d4 c5 7. dxc5 bxc5 8.
    b5 a6 9. a4 Ne4 $2 (9... Bb7 $142 $11) 10. Bxg7 $18 Kxg7 11. Qd5 Qa5+ 12. Ke2
    Bb7 $2 (12... axb5 $142 13. Qxe4 bxa4 14. Qxe7 Nc6 $18) 13. Qxb7 Nc6 14. bxc6 (
    14. Qxd7 $142 Qb4 15. Nfd2 $18 (15. bxc6 Rad8 16. Nbd2 Qb2 $11)) 14... Rab8 15.
    Qxd7 {The passed pawn on c6 quickly leads to threats} Rfd8 16. Qxe7 Rb2+ (16...
    Rxb1 17. Qe5+ f6 18. Qe7+ Kh6 $14) 17. Nfd2 Rbxd2+ 18. Kf3 Rxf2+ 19. Kxe4 Rd4+
    20. exd4 {Black gets strong play along the open e-file} Qe1+ {A double attack}
    21. Kd3 (21. Be2 Qxe2+ 22. Kd5 Qxe7 23. Re1 Rf5+ 24. Re5 Rxe5+ 25. dxe5 Qe6+
    26. Ke4 Qxc4+ 27. Kf3 Qd3+ 28. Kf2 Qf5+ 29. Kg1 Qxe5 30. Nc3 Qd4+ 31. Kh1 Qxc3
    32. Rb1 $19) 21... Qxe7 (21... Qd1+ 22. Nd2 Qxd2+ 23. Ke4 Qxd4#) 22. Nc3 $14
    cxd4 {
    The passed pawn on c6 will quickly become a dangerous weapon. Do you see the m}
    23. Nd5 (23. Nd1 $142 $5 f5 24. Nxf2 (24. Kxd4 $143 Rf4+ 25. Kd3 Qe4+ 26. Kd2
    Qd4+ 27. Bd3 Qxa1 $19) 24... Qe3+ 25. Kc2 Qc3+ 26. Kb1 Qb3+ 27. Kc1 Qc3+ 28.
    Kb1 Qb3+ 29. Kc1 Qc3+ 30. Kb1 $11) 23... Qe5 $15 24. c7 (24. g3 $5 $15) 24...
    f5 $17 {The mate threat is Qe4} 25. Re1 Qxe1 {Threatening mate... how?} 26.
    Kxd4 Rd2+ 27. Bd3 $4 (27. Kc5 $142 Qe6 28. h4 $17) 27... Qe4+ $19 (27... Qxh1
    $6 28. c8=Q Qa1+ 29. Ke3 Qe1+ 30. Kd4 Qe4+ 31. Kc5 Rxd3 32. Qc7+ Kh6 33. Qf4+
    Qxf4 34. Nxf4 $19) 28. Kc5 Rxd3 (28... Qxg2 29. c8=Q Rxd3 30. Qc7+ Kh6 31. Qf4+
    g5 32. Qxf5 $18) 29. Nb6 (29. c8=Q Rxd5+ $1 30. Kb6 Rd6+ 31. Ka7 Qe7+ 32. Qb7
    Rd7 $19) 29... Qe6 (29... Qb7 30. Nd5 $19) 30. Nd5 Qd7 (30... Qd7 31. Kb6 Qd6+
    32. Kb7 Rb3+ 33. Kc8 Rb2 $19) 0-1
    
    
    
    
    
    
    
    

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  • 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
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