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Literatur_Sokolski_Opening - compiled by Peter Markus Steiner (in German)

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Farewell to an epoch. The oldest Kazakh master passes away.

 


Boris Nikolayevich KATALYMOV

of Kazakhstan

1932-2013

    (2013-08-01)
    (All annotations below by Fritz)
    (Games' source: Marek's 1.b4 database)

    
    
    Katalymov,Boris N – Gorenshtein
    Lvov, 1953
    1.b4 c6 2.e3 b5 3.a4 Bb7 4.Nf3 a6 5.c4 bc4 6.Bc4 e6 7.Qb3 
       (7.Ba3 Nf6+=) 
    7...Qb6 8.Ba3 d5 9.Be2 a5 10.b5 c5 11.d4 Nd7 12.0–0 Rc8 
       (12...Rc8 13.Rc1 Ngf6=; 
       12...Bd6 13.dc5 Nc5 14.Bc5 Bc5 15.Rc1=) 
    
    
    
    Katalymov,Boris N – Gipslis,Aivars
    URS–ch sf Tashkent, 1958
    1.b4 Nf6 2.Bb2 e6 3.b5 d5 4.Nf3 c5 5.e3 Nbd7 6.d4 Bd6 7.c4 0–0 8.Qb3 a6 
       (8...Re8 9.dc5 Nc5 10.Qc2+=) 
    9.Nc3 ab5 
       (9...cd4 10.Nd4 e5 11.Nf3 dc4 12.Bc4+=) 
    10.Nb5= Bb8 11.Be2 
       (11.cd5 ed5 12.dc5 Nc5=) 
    11...b6 
       (11...cd4 12.Bd4 e5 13.Bb2=) 
    12.0–0= Bb7 13.a4 
       (13.Rfd1 cd4 14.Bd4 Qe7=) 
    13...Ne4 
       (13...cd4 14.Bd4 e5 15.Bb2=) 
    14.Rfd1 
       (14.cd5 Bd5 15.Bc4 cd4 16.Bd5 Ndc5 17.Ba8 Nb3 18.Be4 f5=) 
    14...Qf6 
       (14...Qe7 15.Nc3 dc4 16.Qc4=) 
    15.Nc3 
       (15.cd5 Bd5 16.Bc4 Bh2 17.Kh2 Nf2=) 
    15...dc4 
       (15...Nc3 16.Bc3 cd4 17.Rd4=) 
    16.Qc4 
       (worse is 16.Bc4 Nc3 17.Qc3 Bf3 18.gf3 Qf3-/+) 
    16...Ng5 
       (16...Rc8 17.dc5 Nec5 18.Qb4=) 
    17.Ng5 
       (17.Ne1 Qf5 18.f3 Ba6=) 
    17...Qg5 Threatening mate: Qxg2 18.d5 
       (18.g3 cd4 19.Qd4 Bc6=) 
    18...Qe5 Do you see the mate threat? 19.Qh4 ed5 20.Rd2 
       (20.Bf3!? Qf6 21.Qh3=) 
    20...Qf6 
       (20...Qe6 21.Bg4 Qf6 22.Qh3+=) 
    21.Qh3 d4 
       (21...Qe6 22.Bg4 f5 23.Bf3-/+) 
    22.Bd3 
       (22.Nb5 Qg5 23.Rdd1 Re8=) 
    22...h6 23.Ne4 
       (23.ed4 cd4 24.Ne4 Qf4=) 
    23...Qe7+= 24.Ng3 Ne5 25.Nf5 Qf6 26.ed4 Nd3 27.Qd3 
       (27.Rd3? Be4 28.Rf3 Rd8–+) 
    27...c4 28.Qc2 c3 
       (28...Re8!? 29.f3 b5-/+) 
    29.Bc3= Rc8 
       (29...Re8 30.Ng3 Bf4 31.Rdd1=) 
    30.Re1 Kh8 31.Ne7? 
       (better is 31.Ne3=) 
    31...Qf4–+ The mate threat is Qxh2 32.Nc8?? 
       (better is 32.g3 Qf3 33.d5 Rc3 34.Qf5–+) 
    32...Qh2 33.Kf1 Qg2 34.Ke2 Qg4 35.Ke3 
       (35.Kf1 Bg2 36.Kg1 Bf3 37.Kf1 Qg2) 
    Qf3# 0–1
    
    
    
    Katalymov,Boris N – Simagin,Vladimir
    Tashkent, 1958
    1.b4 a5 2.b5= b6 3.c4 Bb7 4.Nc3 Nf6 5.Nf3 g6 
       (5...e6 6.Bb2=) 
    6.Bb2 
       (6.d4 Bg7+=) 
    6...Bg7 7.e3 0–0 8.Be2 d6 
       (8...c5 9.0–0+=) 
    9.0–0 e5 10.d4 e4 11.Nd2 Re8 12.c5 
       (12.Qa4 Qe7+=) 
    12...dc5= 13.dc5 bc5 14.Na4 Nbd7 15.Nb3 
       (15.Qc2 Qe7=) 
    15...Qe7 
       (15...c6 16.Nac5 Nc5 17.Nc5+=) 
    16.Qc1 The pressure on the isolated pawn grows 
       (16.Rc1 c6=) 
    16...c4 17.Bc4 Ng4 
       (17...Nb6!? 18.Nbc5 Nc4 19.Qc4 Bd5=) 
    18.Bg7+= Qd6 Do you see the mate threat? 19.g3 Kg7 20.Qd1 
       (20.Qc2 Qb4 21.Nd4 Nge5+=) 
    20...Nde5 
       (20...Nge5 21.Qd6 cd6 22.Be2+=) 
    21.Qd6 cd6 The passed pawn on b5 will become decisive later 22.Be2 
    Nf3 
       (22...Nf6!?+/-) 
    23.Bf3 ef3 24.Nd4 
       (24.Rfd1!?+/-) 
    24...Rac8 25.Rac1 h5 
       (25...Ne5 26.b6+=) 
    26.Nb6 Rc5 
       (26...Rb8 27.Nc4+–) 
    27.Rc5 
       (27.a4 Be4 28.Nb3 Rc2 29.Rc2 Bc2 30.Na5 Ba4 31.Na4 Ra8+/-) 
    27...dc5 28.Nb3 h4 
       (28...Re6 29.Na4 c4 30.Na5+–) 
    29.gh4 
       (worse is 29.Nc5 hg3 30.hg3 Rh8+/-) 
    29...Rh8 
       (29...Be4 30.Nc5 Nf6 31.a4+– (31.Ne4?! Re4 32.h3 Rh4+/-)) 
    30.h3 
       (30.Nc5?! Rh4 31.Rb1 Rh2=) 
    30...Nf6 31.Nc5 
       (31.Na5 Be4 32.Rc1 Bf5+–) 
    31...Be4 32.Ne4 
       (32.Rd1!?+–) 
    32...Ne4+/- 33.Na4 
       (33.Nd5!? Rh4 34.b6 Rh3 35.Nf4+=) 
    33...Rh4= 34.b6 Ng5 
       (34...Rh5 35.a3+=) 
    35.Rb1 
       (better is 35.Nc3+=) 
    35...Rh8?? 
       (35...f5 36.Kh2 Rh3 37.Kg1=) 
    36.Rb5?? 
       (better is 36.Nc5 f5 37.b7 Nh3 38.Kh2 Nf2 39.Kg3+–) 
    36...Nh3+= 37.Kh2 Nf2 
       (37...f5 38.Kg3 (38.Ra5?? Nf2 39.Kg3 Ne4 40.Kf4 f2–+) 38...Ng1 
       39.Rb1=) 
    38.Kg3+/- Ne4 39.Kf3 f5 40.Ra5?? 
       (better is 40.Nc5 Nc5 41.Rc5+/-) 
    Rh2 
       (40...Rh2 41.Ra7 Kf6 42.Rf7 Kf7 43.Kf4 Kf6 44.Nc5 Rf2) 
    0–1
    
    
    
    Katalymov,Boris N – Zhukhovitsky,S
    Stalinabad Soviet Union, 1958
    1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 0–0 5.c4 d6 6.d4 e5 7.Be2 e4 8.Nfd2 Re8 
    9.0–0 d5 
       (9...c5 10.a3=) 
    10.cd5 
       (10.Nc3 dc4 11.Qc2 Be6+=) 
    10...Nbd7 
       (10...Nd5 11.Nc3=) 
    11.Nc3 
       (11.d6 cd6 12.Nc3 Nb6+=) 
    11...Nb6= 12.Qb3 a6 
       (12...Nbd5 13.Bc4 c6 14.b5+=) 
    13.b5 
       (13.Bc4 Nc4 14.Qc4 b5=) 
    13...a5 14.a4 Bf5 
       (14...Nbd5 15.Bc4 c6 16.Rab1+=) 
    15.Rfc1 
       (15.Bc4 Qd7+/-) 
    15...Qd7 
       (15...Nfd5 16.Nd5 Nd5 17.Ba3+=) 
    16.Nc4 
       (16.Bc4 Rad8+/-) 
    16...Nfd5 
       (16...Nbd5 17.Ne5 Qd8 18.Nd5 Nd5 19.Rc5+=) 
    17.Nd5 Nd5 18.Ne5 Qd8 
       (18...Qd6 19.Ba3 Qd8 20.Rc5+=) 
    19.Rc5 Be6 20.Bc4 Nb6 21.d5 Bf5 22.d6 
       (22.Nf7 Kf7 23.d6 Nc4 24.Qc4 Kf8 25.Rc7 Bd7 26.Bg7 Kg7 27.Rb7 Rc8+/-) 
    22...Nc4 23.Nf7 Kf7 24.Qc4 Kf8 25.Bg7 
       (25.Rc7 Bd7 26.Bg7 Kg7 27.Rb7 Rc8+/-) 
    25...Kg7 26.Rc7 
       (26.dc7?! Qf6 27.Qd4 Rec8+=) 
    26...Bd7 
       (26...Kh6 27.Qd4+/-) 
    27.Rb7 Rc8 28.Qd4 
       (28.Rc7 Kh6 29.Rd1 Bg4+/-) 
    28...Kh6 29.b6 
       (29.Rd1 Re6+/-) 
    29...Rc6 30.Rc7 Re6 31.Rd1 Qe8 32.b7 Red6 33.Qd6 Rd6 34.Rd6 Qe5 
       (34...Bg4 35.Rc1 Qb8+–) 
    35.Rcd7 Qc3 Do you see the mate threat? 36.Rd1 
       (better is 36.g4 Qe1 37.Kg2 Qe2+–) 
    36...Qb3 37.h3 
       (37.h3 Qb2 38.R1d5 Qa1 39.Kh2+–) 
    1–0
    
    
    
    Katalymov,Boris N – Golyak,Isay
    Karaganda, 1958
    1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Bd6 5.c4 c6 6.Qb3 
       (6.d4 Ne7=) 
    6...Ne7 7.Nc3 d4 
       (7...Nd7 8.d4=) 
    8.Ne4 c5 
       (8...Bf5 9.Bd3=) 
    9.Ba3 
       (better is 9.Nf3=) 
    9...b6 
       (better is 9...Qc7=) 
    10.ed4+/- ed4 
       (better is 10...Bf5 11.dc5 Bc5 12.Nc5 bc5 13.Bc5 Nd7 14.Be7 Ke7 15.Qa3 Kf7+– 
      ) 
    11.Be2?? 
       (better is 11.Qf3 Be5 12.Ng3+–) 
    11...Bb7 
       (11...a6 12.Bb2=) 
    12.Bf3 Nc8 13.0–0–0 
       (13.Ne2 Qe7 14.Nd6 Nd6 15.Bb7 Qb7=) 
    13...Qc7 14.Nd6 Nd6 15.Re1 Kf7 
       (15...Kd8 16.Ne2 Bf3 17.Qf3=) 
    16.Ne2+= Nd7 
       (16...Rc8 17.Nd4 a6 18.Bg4 cd4 19.Bd6 Qc4 20.Kb2 Qb3 21.ab3+/-) 
    17.Nd4 Ne5 
       (17...cd4 Exploits the pin 18.Bd6) 
    18.Nc6 
       (18.Bh5 g6 19.Bf3 a6 (19...Ndc4? 20.Re5 fe5 21.Qc4 Kf6 22.Bb7 ed4 
       23.Ba8 Ra8 24.Qd5+–; 19...Nf3?! 20.Nf3 a6 21.Bb2=) 20.Bb7 Nb7=) 
    18...Nc6+= 19.Bd5 Kf8 20.bc6 Bc6 21.Qf3 
       (21.d4 
         A) 21...cd4 22.Re6 Bd5 23.Bd6 Kf7 24.Rf6 (worse is 24.Bc7 Be6 25.Rd1 
          Rhc8+–) 24...gf6 25.Bc7+–;
         B) 21...Bd5 22.cd5 Kf7=) 
    21...Rc8 
       (21...Bd5 22.Qd5 Rd8 23.Bb2=) 
    22.Re6 
       (22.Bc6 Qc6 23.Qc6 Rc6+=) 
    22...Bd5 23.Qd5 Nf7 24.Rhe1 Rd8 
       (24...Qh2 25.Qd7 g6 26.Rf6 Kg7 27.Rf7 Kh6 28.Re3 Rce8 29.Rh3 Kg5 
       30.Rf5 gf5 31.Qg7 Kf4 32.Rf3 Ke4 33.d3) 
    25.f4 
       (25.Bb2 Ng5 (25...Qh2?? 26.Qd7 Ne5 27.Qe7 Kg8 28.Be5+–) 26.Rc6 
       Qb8+–) 
    25...Ne5 
       (25...Qf4 26.Qd7 g5 27.Qe7 Kg7 28.Bb2 Qd2 29.Kb1 Qd3 30.Ka1 Qd1 
       31.Rd1 Rd1 32.Bc1 Rc1 33.Kb2=) 
    26.fe5= With the decisive threat Rd6 26...Rd5 27.cd5 The passed 
    pawn on d5 will become decisive later 27...Kf7 28.Bb2 Rf8 29.Rc6 
       (29.d6!? Qd8 30.ef6 gf6 31.Bf6 Qf6 32.Rf6 Kf6 33.d4+/-) 
    29...Qb7= 30.e6 Kg6 
       (better is 30...Kg8 31.Bc3 Re8=) 
    31.Rd6 
       (31.Re3 h5=) 
    31...Re8 
       (31...Qc7 32.Rc6 Qh2+=) 
    32.Rd7= White prepares the advance e7 32...Qa6 33.e7?? 
       (better is 33.Re3=) 
    33...Qc4 34.Kb1 
       (better is 34.Bc3 Qa2 35.g4–+) 
    34...Qd3 
       (better is 34...Qf4!? 35.Kc1 Qh4–+) 
    35.Kc1-/+ Qc4 
       (35...Kf7 36.d6 b5-/+) 
    36.Kb1–+ Qf4 37.Ka1 
       (37.Kc1 Qh4 38.g3 Qh2–+) 
    37...Qd2 
       (37...Qh2 38.d6 Qg2 39.Bc3–+) 
    38.Rc1 Qg2 39.d6 White is in command 39...Qe2?? 
       (39...Kf7 40.Rd8 Qd2 41.Kb1–+) 
    40.h4? 
       (40.Rd8 Kf7 41.d7 Re7 42.Rf8 Kf8 43.d8Q Re8-/+) 
    40...Qe6?? 
       (better is 40...Qd2–+) 
    41.Rd8-/+ Re7 
       (41...Kf7!? 42.d7 Re7 43.Rf8 Kf8 44.d8Q Re8+=) 
    42.de7= Qe7 43.Rcd1 
       (43.Rg1 Kf7 44.Rgd1=) 
    43...c4 
       (better is 43...Qe6!?+=) 
    44.R8d7+= Qe3 
       (44...Qe4 45.Rg1 Kf5 46.Ra7+/-) 
    45.h5!+/- 
       (45.Ra7?! c3 46.Bc1 Qg3=) 
    45...Kf5 
       (45...Kh5 A deflection 46.Rg7) 
    46.Rc1 Ke6 
       (46...Qg3!?+/-) 
    47.Rg7+– b5 48.Rh7 a5 
       (48...Qe2 49.Rh8 Kf7 50.h6+–) 
    49.Rb7 b4 
       (49...a4 50.a3 (50.Rb5?! a3 51.Ba3 Qa3 52.Rc4 Qf3+–) 50...Qg5 
       51.Rf1+–) 
    50.Rc4 a4 51.Rbb4 Qe1 52.Bc1 Qe5 53.Rd4 
       (53.Kb1 Qh5 54.Re4 Kf7 55.Ra4 Qf3+–) 
    53...Qh5 54.Ra4 Qh1 The mate threat is Qxc1 55.Kb2 
       (55.Rac4 f5+–) 
    55...Qg2 56.Bd2 f5 57.Kb3 
       (57.Rab4 Ke5+–) 
    57...Qf3 
       (57...Qg3 58.Bc3+–) 
    58.Bc3 
       (58.Kc2 Qf2+–) 
    58...Qf1 59.Kb2 
       (59.Rab4 Qb1 60.Bb2 Qf1+–) 
    59...Qg2 
       (59...Qf2 60.Rd2 Qf3 61.Ra6 Kf7 62.Rb6+–) 
    60.Rd2 Qf1 61.Ra5 Kf7 62.Rad5 f4 
       (62...Kg6 63.a4+–) 
    63.Rd1 
       (63.Rf5 Kg6 64.Re5 Qa6 65.Rg2 Kf7 66.Rf5 Ke7 67.Bb4 Ke6 68.Rg6 Kf5 
       69.Ra6 f3+–) 
    63...Qe2 64.R5d2 
       (64.Kb3 Qe6+–) 
    64...Qb5 65.Ka1 Qc4 
       (65...Qc5 66.Rd3 Qf2 67.Rd7 Ke6 68.R7d6 Ke7 69.Rh6+–) 
    66.Bb2 Ke6 
       (66...Qe4 67.Rf1+–) 
    67.Rd6 Kf5 68.Rg1 
       (68.Rf6 Kg4 69.Be5 Qc5 70.Rf4 Kg5+–) 
    68...Qb5 
       (68...Qb4 69.Rd5 Ke6 70.Rd4+–) 
    69.Rd2 
       (69.Rf6!? Ke4 70.Re1 Kf3+–) 
    69...Ke4 
       (69...Qa6 70.Rd8+–) 
    70.Rf2 
       (70.Re1 Kf3 71.Be5 Qc4+–) 
    70...Qd3 
       (70...Qb4 71.Rd1 Kf5 72.Rfd2+–) 
    71.Re1 Kf5 72.Ref1 
       (72.Rg2 f3 73.Rg8 Qd6+–) 
    72...Qc4 
       (72...Qe4 73.Bc1 Qd4 74.Rb2+–) 
    73.Rc1 
       (better is 73.a3!? Qe4 74.Bc1 Qd4 75.Rb2 Qc3 76.Rf4 Ke6+–) 
    73...Qe4 
       (73...Qd5 74.Rfc2 Qf3 75.Rc5 Ke6 76.Re1 Kd6 77.Rf5+–) 
    74.Rfc2 Qe3 
       (74...Qa8 75.Rc5 Kg4 76.R1c4+–) 
    75.Rc5 Kg4 
       (75...Ke6 76.Re5 Kd6 77.Re3 fe3 78.a4+–) 
    76.R5c4 
       (76.R1c4!? Qh3+–) 
    76...Kf5 77.Bd4 
       (77.Rf1!? Qg3+–) 
    77...Qd3 78.Kb2 Ke6 
       (78...f3 79.R1c2+–) 
    79.a4 f3 80.R1c2 Kd5 81.Rb4 Kd6 
       (81...Qf1 82.Rh2 Qd3 83.a5+–) 
    82.a5 
       (82.Rb6!? Kd5 83.Rc5 Kd4 84.Rd6 Kc5 85.Rd3 f2 86.Rc3 Kb4+–) 
    82...Kd7 
       (82...Kd5 83.Bb6 Qf1 84.Rf2+–) 
    83.Rbc4 Qf5 
       (83...Qe4 84.a6 f2 85.Bf2 Qe5 86.Rd4 Ke6+–) 
    84.Rc7 Kd8 
       (84...Ke8 85.Rh2 Qb5 86.Kc1+–) 
    85.Rb7 f2 86.Bb6 
       (86.Bb6 Ke8 87.Re2 Kf8 88.Rf2+–; 
       86.Rf2 Kc8 87.a6 Qb5 88.Rb5 Kd7 89.a7 Kc6 90.a8Q Kb5 91.Qd5 Kb4 92.Bc3 
       Ka4 93.Rf4#) 
    1–0
    
    
    
    Katalymov,Boris N – Mukhitdinov
    Alma Ata, 1958
    1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Qe7 6.Nf3 
       (6.Nc3 a6=) 
    6...0–0 7.Nc3 dc4 8.Bc4 e5 
       (8...Nbd7 9.0–0=) 
    9.d4 ed4 
       (9...Bg4 10.de5 Be5 11.Be2 Bf3 12.Bf3=) 
    10.Qd4 c5 
       (10...Be6 11.Be6 fe6 12.e4=) 
    11.Qh4 Nbd7 
       (11...Be6 12.Bd3 Rd8 13.Ng5+=) 
    12.0–0–0 
       (12.Bd3 Nb6+=) 
    12...Nb6= 13.Rd6 
       (13.Bd3!? c4 14.Bc2=) 
    
    
    
    Katalymov,Boris N – Geller,Yefim
    Tashkent, 1958
    1.b4 e5 2.Bb2 d6 3.e3 Nf6 4.Nf3 g6 5.c4 Bg7 6.Nc3 0–0 7.Be2 e4 8.Nd4 c5 
    9.bc5 dc5 10.Nb3 b6 11.d4 cd4 12.Nd4 Na6 13.0–0 Nc5 14.a4 a5 15.Rb1 Bb7 
       (15...Bd7 
         A) 16.Ba3 
            A1) 16...Re8 17.Ndb5 (17.Qc2 Qc7 18.Rfd1 Rad8 19.Ndb5= 0.06
             ) 17...Re6 18.Qc2 Rc8 19.Rfd1+= 0.59;
            A2) 16...Rb8 17.Qc2 (17.Ndb5 Qe7 18.Nd6 Rfd8 19.Bc5= –0.06
             ) 17...Qc7 18.Ncb5 Qe5 19.Nb3= 0.09;
         B) 16.Ndb5 
            B1) 16...Bc6 17.Ba3 (17.Qc2 Qe7 18.Nd4 Bd7 19.Rfd1= 0.22 
            ) 17...Rb8 18.Qc2 Qe7 19.Nd4+= 0.31;
            B2) 16...Bb5 17.Nb5 (17.cb5 Qd1 18.Rfd1 Rfd8 19.f3+= –0.28
             ) 17...Qd1 18.Bd1 Rfd8 19.Bd4= 0.06;
         C) 16.Ncb5 
            C1) 16...Rc8 17.Qc2 (17.Re1 Qe7 18.Na7 Ra8 19.Nab5= 0.00
             ) 17...Bg4 18.Rfd1 Qe7 19.Ba3= 0.03;
            C2) 16...Qe7 17.Qc2 (17.Re1 Rac8 18.Na7 Rce8 19.Ndc6= –0.06
             10) 17...Rfd8 18.Rfd1 Rac8 19.Nc3= –0.06;
         D) 16.Qc2= 
            D1) 16...Qe7 17.Rfd1 (17.Ba3 Rfb8 18.Nd5 Nd5 19.cd5= 0.16
             ) 17...Rfd8 18.Ba3 Rab8 19.Nb3+= 0.50;
            D2) 16...Qb8 17.Rfd1 (17.Ncb5 Rd8 18.f3 Qc8 19.Nc3= 0.06 
            ) 17...Rd8 18.Ndb5 h6 19.Ba3= 0.13) 
    16.Ba3 
       (16.Qc2 Qc7= 17.Ncb5 (17.Rfd1 Rfd8 18.Nb3 Rd1 19.Rd1= 0.19) 
       17...Qe7 18.Rfd1 Rad8 19.Ba3+= 0.28; 
       16.Qd2 
         A) 16...Qd6 17.Rfd1 (17.Ba1 Rad8 18.Rfd1 Qc7 19.Qb2= 0.19) 
          17...Rfd8 18.Ba1 Qc7 19.Qb2= 0.19;
         B) 16...Qc7 17.Rfd1 (17.Ncb5 Qe7 18.Ba3 Rfd8 19.Rfd1= 0.06)
           17...Rfd8 18.Qc2 Rac8 19.Ncb5= 0.09; 
       16.Ba1 
         A) 16...Rc8 17.Ndb5 (17.Qc2 Nfd7 18.f3 ef3 19.Bf3= –0.25) 
          17...Ba6 18.Qc2 Qe7 19.Nd5= 0.22;
         B) 16...Qc7 17.Ncb5 (17.Qc2 Rfd8 18.Ncb5 Qe7 19.Rfd1= 0.06 
         ) 17...Qd7 18.Qc2 Rfd8 19.Rfd1= 0.09) 
    16...Rb8 
       (16...Qc7 17.Bc5 (17.Qc2 Rfd8 18.Rfd1 Rac8 19.Bc5= 0.19) 
       17...bc5 18.Ncb5= Qe5 19.Nb3= 0.19; 
       16...Nfd7 17.Nd5 (17.Qc2 Rc8 18.Rfd1 Be5 19.Bg4+= 0.66) 
       17...Rc8 18.Bc5 Rc5 19.Nb3+/- 0.72) 
    17.Rb5 
       (17.Qc2 Qc7 18.Nb3 Nfd7 19.Nc5+= 0.47) 
    17...Qc7 18.Bc5 bc5 19.Nb3 Ba6 
       (19...Bc6 20.Rc5 (20.Ra5? Rb3 21.Qb3 Qa5–+) 20...Qb6 21.Nb5+=) 
    20.Rb8 
       (20.Rc5!? Qb6 21.Nb5+/-) 
    20...Rb8= 21.Nb5 Bb5 22.cb5 c4 
       (22...Bf8 23.Qd2+=) 
    23.Qc2+/- Rc8 
       (23...c3 24.Rc1 Rc8 25.Nd4+/-) 
    24.Nd4 Nd7 25.Nc6 
       (25.Qe4!? Be5 26.g3 Bd4 27.Qd4+/-) 
    25...Ne5+= 26.Bc4 
       (26.Rc1 c3 27.Nd4 Nd3 28.Bd3 ed3 29.Qd3 Qc4+=) 
    26...Nc6= 27.bc6 Qc6 28.Rc1 ½–½
    
    
    
    Katalymov,Boris N – Giterman
    Alma Ata, 1958
    1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 
       (4...a6 5.Nc3+=) 
    5.c4 
       (5.Nf3 Nbd7=) 
    5...Nbd7 
       (5...a6 6.cd5 ed5 7.Bf6 Qf6 8.Nc3=) 
    6.Nf3= Be7 
       (6...Bd6 7.Be2=) 
    7.a4 
       (7.Be2 a6=) 
    7...0–0 8.Qb3 
       (8.Be2 a6=) 
    8...a6 
       (8...d4 9.Bd3+=) 
    9.Be2 
       (9.Na3 d4 10.Bd3 e5=) 
    9...ab5+= 10.ab5 Ra1 11.Ba1 dc4 12.Qc4 Nb6 
       (12...b6 13.0–0+=) 
    13.Qc2 Nbd5 
       (13...Nfd5 14.0–0=) 
    14.0–0= Bd7 15.Ne5 +=
    
    
    
    Katalymov,Boris N – Ilivitsky,Georgi
    Frunze, 1959
    1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 Ne7 5.Qh5 Ng6 6.f4 ef4 7.a3 d5 8.Bd5 c6 
    9.Bb3 Qa5? 10.e5! Be7? 
       (10...Bc5 11.ef6? Bf2!) 
    11.Bf7! 
       (11.Bf7 Kf7 12.e6!!; 
       11.Bf7 Kf8 12.Bg6) 
    1–0
    
    
    
    Katalymov,Boris N – Suetin,Alexey
    Moscow, 1959
    1.b4 e5 2.Bb2 d6 3.c4 Be7 4.Nc3 
       (4.Nf3 Nf6+=) 
    4...c6 
       (4...Nf6 5.Nf3+=) 
    5.e3 
       (5.Nf3 Qb6 6.a3 Nf6=) 
    5...Nd7 
       (5...Nf6 6.d4=) 
    6.d4 Ngf6 7.Nf3 0–0 
       (7...e4 8.Nd2=) 
    8.Be2 
       (8.Bd3 ed4 9.Nd4 Ne5=) 
    8...a6 
       (8...Re8 9.0–0=) 
    9.Qb3 
       (9.0–0 e4 10.Nd2 d5=) 
    9...b5 10.c5 
       (10.cb5 ab5 11.d5 cd5 12.Nb5 Nb6=) 
    10...a5 11.de5 
       (11.a3 ab4 12.ab4 Ra1 13.Ba1 ed4 14.cd6 Bd6 15.Nd4 Ne5=) 
    11...de5 
       (11...Ne5!? 12.Qc2 Bd7+=) 
    12.a3= Qc7 
       (12...Ra7 13.0–0+=) 
    13.0–0 a4 
       (13...ab4 14.ab4 Ra1 15.Ra1+=) 
    14.Qc2+= Re8 
       (14...Nb8 15.Ne4 Nbd7 16.Nf6 Bf6 17.Qe4+/-) 
    15.Ne4 
       (15.Rad1 Rd8+=) 
    15...Ne4 16.Qe4 e5 draws heavy fire. White launches an attack 
    16...Ra7 
       (16...Bb7 17.Rad1+/- (worse is 17.Ne5 Bf6+=; 17.Be5?! Ne5 18.Qe5 Qe5 19.Ne5 
       Bf6+=)) 
    17.Be5 
       (17.Bd3 g6 18.Be5 Ne5 19.Qe5 Qd8+/-) 
    17...Bf6 18.Bc7 Re4 19.Bd6 Ba1 20.Ra1 Re8 
       (better is 20...Ra6!?+/-) 
    21.Nd4+– Bb7 22.Bf3 Nb8 
       (22...Rc8 23.Nf5 Re8 24.Ne7 Re7 25.Be7+–) 
    23.Bb8 
       (23.Rd1 h6+–) 
    23...Rb8 24.Bc6 
       (worse is 24.Nc6 Bc6 25.Bc6 Rc7+/-) 
    24...Ba6 25.f4 
       (25.Rd1 h6+–) 
    25...Kf8 26.Kf2 
       (26.Rd1 Rc7+–) 
    26...g6 
       (26...Rc7 27.Rc1+–) 
    27.Rd1 
       (27.e4 f6+–) 
    27...Rc7 28.Bf3 
       (better is 28.e4+–) 
    28...Bc8? 
       (better is 28...Bb7+–) 
    29.Nc6 Rbb7 30.Rd8 Kg7 31.Nd4 Rb8 32.Bc6 Kf6 
       (32...f5 33.Bb5 Kf6 34.Rd6 Kg7 35.Bc6+–) 
    33.Bb5 Ra8 
       (33...Kg7 34.Bc6+–) 
    34.Bc6 Ra6 35.b5 Rac6 36.Nc6 Bb7 37.e4 
       (37.Rd6 Kg7+–) 
    37...Kg7 38.Rd6 f5 
       (38...h6 39.Ke3+–) 
    39.e5 Kf7 
       (39...Kf8 40.Nd8 Ke8+–) 
    40.e6 
       (40.e6 Kf6 41.e7 Kf7 42.Rf6 Kf6 43.e8Q Rc6 44.bc6+–) 
    1–0
    
    
    
     Katalymov,Boris N – Bachtiar,Arovah
    Tashkent, 1959
    1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.Nf3 d6 5.d4 Nbd7 6.c4 0–0+= 7.Be2 Re8 8.0–0 
    Ne4 9.Qc2+= f5 10.d5 
       (10.Nc3 Ndf6+=) 
    10...Nef6 
       (10...a5!?=) 
    11.Nd4 
       (11.Nbd2 c5 12.a3 e6+/-) 
    11...Nf8 
       (11...Ne5 12.Nc3+=) 
    12.Bf3 
       (12.Nc3 e5 13.Nb3 N8d7+=) 
    12...Rb8 
       (12...e5 13.de6 Ne6 14.Ne6 Be6 15.Nd2=) 
    13.Nc3 e5 14.de6 Ne6 15.Nd5 Nd5 
       (15...Nd4 16.Bd4 Nd5 17.cd5 Bd4 18.ed4+=) 
    16.Bd5 
       (16.cd5 Bd4 17.Bd4 Nd4 18.ed4 Bd7+=) 
    16...c6= 17.Be6 
       (17.Bf3 Nd4 18.ed4 a5=) 
    17...Be6 18.Rfd1 
       (18.Rac1 Bf7=) 
    18...Bf7 19.c5 d5 
       (19...Bd5 20.Ne2 Bb2 21.Qb2 dc5 22.bc5=) 
    20.a4 
       (20.Nf3 Re4+=) 
    20...Qe7 
       (20...Re4 21.Qd2=) 
    21.b5 Rbc8 22.Rac1 Qd7 
       (22...a6 23.ba6 ba6 24.Nf3+=) 
    23.Qc3 
       (23.Nf3 Be6+= (worse is 23...cb5 24.Bg7 Kg7 25.Qb2 Kg8 26.ab5+/-)) 
    23...b6 
       (23...Qc7!?=) 
    24.Qa3 
       (24.Qd2 bc5 25.Nc6 Bb2 26.Qb2 Rc6 27.bc6 Qc6+/-) 
    24...cb5 
       (24...Bd4 25.Bd4 bc5 26.Rc5 cb5 27.ab5 Rc5 28.Qc5+=) 
    25.c6+/- Qc7 
       (25...Qe7 26.Nb5 a6 27.Qe7 Re7 28.Nd6+=) 
    26.ab5 Re4 
       (26...Qe7 27.Qb3+–) 
    27.Ra1 Ra8 28.Qa6 
       (28.g3 Qe7+–) 
    28...h5 
       (28...Re7 29.g3+–) 
    29.Rac1 
       (29.Bc3 f4 30.ef4 Qf4+–) 
    29...Ree8 
       (29...Rae8 30.g3+/-) 
    30.Qb7 
       (30.Rd3 f4+/-) 
    30...Be5 
       (30...Rac8 31.Ba3+/-) 
    31.f4+– Bd6 
       (31...Rab8 32.Qc7 Bc7 33.Kf2+–) 
    32.Ba3 Reb8 
       (32...Qb7 33.cb7 Ba3 34.ba8Q (34.ba8N?! Bc1 35.Rc1 Ra8=) 34...Ra8 
       35.Rc7+–) 
    33.Bd6 
       (33.Qa6 Ba3 34.Qa3 Re8+–) 
    33...Rb7 34.cb7?? 
       (better is 34.Bc7 Rc7 35.Ra1+–) 
    34...Qb7= 35.Rc7 Qb8 36.Nc6 Qe8 37.Ne5 Be6 38.Re7 Qc8 
       (38...Qb5 39.Re6 Qe2 40.Ra1 Qe3 41.Kh1=) 
    39.Rf1 
       (39.Bc7 g5 40.fg5+/-) 
    39...d4 
       (39...a6 40.Nf3 d4 41.Ng5=) 
    40.Ng6 
       (40.ed4 a6 41.Ng6=) 
    40...d3 
       (better is 40...Qc3 41.h3 Bf7=) 
    41.Rc7+= Qe8 42.Ne7 Kf7 
       (42...Kh7 43.Nf5 Bd7 44.e4+=) 
    43.Nf5+/- Kf6?? 
       (better is 43...Bd7+/-) 
    44.Ng7+– Qg8 
       (44...Bg4 45.Ne8 Re8+–) 
    45.Be5 Kg6 46.f5 Bf5 47.Nf5 
       (47.Nf5 Rf8 48.Ne7 Kg5 49.Ng8 Rf1 50.Kf1+–) 
    1–0
    
    
    
    Katalymov,Boris N – Barenbaum
    Tashkent, 1959
    1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.a4 0–0 8.Nc3 
       (8.cd5 Nd5 9.e4 Nb4+=) 
    8...b6 
       (8...Re8 9.cd5 ed5 10.Be2+=) 
    9.Be2 
       (9.cd5 ed5 10.Be2 Qe7=) 
    9...Bb7 
       (9...dc4 10.Bc4 Bb7 11.d3+=) 
    10.cd5= ed5 11.d4 Rc8 12.0–0 Qe7 
       (12...Re8 13.Qd3=) 
    13.a5 Bb8 
       (13...Rfe8 14.Qd3=) 
    14.a6 
       (14.Qc2 Rfe8=) 
    14...Ba8 15.Bd3 
       (15.Qc2 Rfe8=) 
    15...Ne4 16.Rc1 
       (16.Qc2 Bd6=) 
    16...c4 17.Bc2 
       (17.Be4 de4 18.Nd2 Nf6=) 
    17...Qd6 
       (17...Ndf6 18.Qe1+=) 
    18.Ba1 
       (18.Nb1 Rfe8=) 
    18...Qh6 
       (18...Rfe8 19.Qe2+=) 
    19.Ne2 
       (19.Bb2 Rfe8=) 
    19...Rfe8+= 20.Ng3 
       (20.Bb2 Ndf6 21.h3 Nd6=) 
    +/-
    
    
    
    Katalymov,Boris N – Gusev
    1959
    1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 Nbd7 7.0–0 b6 
       (7...c5 8.a3=) 
    8.a4 
       (8.Qa4 Bb7=) 
    8...a5 9.Nd4 Bb7 10.b5 Ne4 
       (10...e5 11.Nf3=) 
    11.d3+= Nec5 12.Na3 
       (12.Qc2 e5 13.Nc6 Bc6 14.bc6 Nb8=) 
    12...e5 13.Nc6 Bc6 14.bc6 Nf6 
       (14...Nb8 15.Bf3=) 
    15.d4 
       (15.Nb5 Qe7+=) 
    15...ed4 16.ed4 Ne6 17.Nb5 +=
    
    
    
    Katalymov,Boris N – Kholmov,Ratmir
    Rostov, 1960
    1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 a5 6.b5 Nbd7 7.cd5 ed5 8.Nd4 Bg6 
    9.Be2N 
       (9.f4 Nc5 10.d3 Bd6 11.Be2 Qe7 12.Qd2 Ng4 13.Bc1 Nd3 14.Bd3 Bf4 
       15.Qe2 Bd3 16.Qd3 Qh4 17.Kd2 Nf2 18.Qf5 Be3 19.Ke3 Nh1 20.Qe5 Kd8 
       21.Qd5 Kc8 22.Kd3 Nf2 23.Kc4 Ne4 Labahn,T–Sielaff,R/GER–ch qgB15 
       corr939 1993/1–0 (41)) 
    9...Ne5 10.0–0 Nd3 11.Bc3 
       (11.Qc2 Nf4 12.d3 Ne2 13.Ne2 Bd6=) 
    11...Bd6 
       (11...Qd7 12.f4 Be4 13.Nf3=) 
    12.Nb3 
       (12.f4 Be4=) 
    12...c5 
       (better is 12...0–0!?+=) 
    13.bc6= bc6 14.f4 Be4 15.Nc1 Nc1 16.Qc1 0–0 17.Bf6 
       (better is 17.Bd4!?=) 
    17...Qf6-/+ 
       (17...gf6?! 18.Nc3 Bf5 19.Na4=) 
    18.Nc3 Bf5 19.Na4 Rac8 20.Nc5 Qe7 
       (20...Rb8 21.Bd3-/+) 
    21.Bd3+= Bd3 22.Nd3 c5 23.Rb1 c4 24.Ne5 Be5 25.fe5 Qe5 26.Rb5 a4 27.Qc2 c3 
    28.Qd3 
       (28.Rf4 f6+=) 
    28...Rfd8-/+ Black plans d4 29.Rb7? 
       (29.Rc1 cd2 30.Qd2 Rc1 31.Qc1 g6-/+) 
    29...cd2 
       (better is 29...d4 30.Rb5 (30.Rff7?? c2 31.Rg7 Qg7 32.Rg7 Kg7–+) 30...Qe8 
       31.e4–+) 
    30.Rd1?? 
       (better is 30.Qd2 Rc7 31.Rc7 Qc7 32.Rc1-/+) 
    30...Qe4 
       (30...d4 31.e4 f5 32.Qd2 fe4 33.Qf2–+) 
    31.Qf1 
       (31.Qe4 de4 32.Kf1 Rc2–+) 
    31...f6 32.Qb5?? 
       (32.Rb2 Rc2 33.Rc2 Qc2 34.Qe2 Qa2 35.Rd2 Qb1 36.Rd1–+) 
    32...d4 33.Qb4 Qg4 
       (33...Qe3 34.Kh1 Rc1 35.Qc4 Rc4 36.h3 Rc1 37.Rb1 Qe1 38.Kh2 Rb1 
       39.Rb1 Qb1 40.Kg3 Qb8 41.Kf3 d1Q 42.Kf2 Qf4) 
    34.Qa4 
       (34.Qd2 Qe4 35.ed4 Qb7–+) 
    34...Qe2 35.Qb3 
       (35.Rbb1 Rb8 36.Ra1 de3 37.Qf4–+) 
    Kh8 
       (35...Kh8 36.h4 Rc1–+) 
    0–1
    
    
    
    Katalymov,Boris N – Liberzon,Vladimir
    Rostov, 1960
    1.b4 e5 2.Bb2 d6 3.c4 f5 4.Nc3 Nf6 5.e3 Be7 6.Nf3 e4 7.Nd4 Nc6 
       (7...c5 8.Nc2=) 
    8.Nd5 
       (8.Nc6 bc6 9.Be2 a5 10.ba5 Ra5=) 
    8...0–0 
       (8...Nd4 9.Bd4 0–0 10.Be2+=) 
    9.Nc6 bc6 10.Ne7 Qe7 11.Be2 Be6 12.0–0 Ng4 
       (12...a5 13.ba5 Ra5 14.a4+=) 
    13.f4 
       (13.Qa4 Ne5 14.Be5 de5 15.Qc6 Rab8+=) 
    13...ef3 
       (13...Rfb8 14.Bc3=) 
    14.Rf3+= Ne5 15.Rg3 Bd7 
       (15...Rab8 16.Qa4+=) 
    16.c5 f4 
       (16...a5 17.ba5 Ra5 18.d4+=) 
    17.ef4 Rf4 18.Qb3 
       (18.d4 Nf7+/-) 
    18...Kh8 
       (18...Be6 19.Qa4+=) 
    19.Qe3 
       (19.Re3 Be6 20.Qc3 Qd7+=) 
    19...Raf8 
       (19...Rb4 20.Ba3 Rbb8 21.d4=) 
    20.Bc3 
       (20.d4 Ng6 21.Qe7 Ne7+=) 
    20...Qf7 
       (20...Be6 21.Be5 de5 22.Qe5+/-) 
    21.cd6+/- cd6 22.Qa7 Re8 23.h3 
       (23.Re3 Rf8+/-) 
    23...h6 
       (23...Qf8 24.a4+/-) 
    24.d4 Bc8 
       (24...Bh3 25.Qf7 Nf7+/- (25...Rf7?? 26.de5 Bf5 27.Bh5+–)) 
    25.Qf7 Nf7 26.Bh5 d5 27.Bd2 Rf6 28.Re1 
       (28.a4 Ba6+–) 
    28...Re1 29.Be1 Ng5 
       (29...Ba6 30.Re3+–) 
    30.Ra3 Kh7 
       (30...g6 31.Ra8 gh5 32.Rc8 Kg7 33.Bg3+–) 
    31.Bg3 Bf5 
       (31...g6 32.Be5 Rf7+–) 
    32.Be5 Rf8 33.Ra7 
       (33.Ra7 Rg8 34.Rc7+–) 
    1–0
    
    
    
    Katalymov,Boris N – Nurmamedow
    SU–ch sF, 1960
    1.b4 e6 2.Bb2 Nf6 3.b5 a6 4.a4 ab5 5.ab5 Ra1 6.Ba1 d5 7.e3 c5 8.Nf3 Bd6 
    9.c4 0–0 10.Be2 Nbd7 11.0–0 e5 12.cd5 Nd5 
       (12...e4 13.Ne1 Nd5 14.d3=) 
    13.Nc3 N5f6 
       (13...Nc3 14.dc3 Qc7 15.Qd3=) 
    14.Qa4 
       (14.Qc2 Qe7=) 
    14...Qc7 
       (14...Re8 15.d3=) 
    15.Qh4= h6 
       (15...Rd8 16.Rd1=) 
    16.h3 
       (16.Rc1 Rd8=) 
    16...b6 17.d3 Bb7 18.Nd2 Ra8 19.Nc4 +=
    
    
    
    Katalymov,Boris N – Giterman,Shlomo
    Novgorod, 1961
    1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 0–0 5.c4 d5 6.e3 c5 7.a3 Ba5 8.cd5 Nd5 
    9.Qc2 Nc6 10.Bb2 
       (10.Bd3 Ne5 11.Ne5 Qf6-/+) 
    10...Qe7 
       (10...b6 11.Bd3 f5 12.0–0=) 
    11.Bd3 h6 12.0–0 Be6 
       (12...Bg4 13.Bh7 Kh8 14.Be4=) 
    13.Rc1 Bb6 
       (13...b6 14.Bb5 Nd8 15.Bc4=) 
    14.Nc3 Rad8 
       (14...Nc3 15.Qc3 f6 16.Qc2=) 
    15.Na4+= The pressure on c5 grows 15...Bg4 
       (15...Rfe8 16.Bb5+/-) 
    16.Ne1 
       (worse is 16.Nc5 Bf3 17.gf3 Nf4 18.Bh7 Kh8 19.ef4 Bc5 20.Qc5 Qc5 21.Rc5 Kh7= 
      ) 
    16...Na5 
       (16...Ne5 17.Be4+/-) 
    17.Rab1+/- Rc8 18.h3 
       (18.Nb6 ab6 19.Bh7 Kh8+/-) 
    18...Be6+= 19.Nb6 ab6 20.Nf3 c4 
       (20...Rfd8 21.Rd1+=) 
    21.Bh7 Kh8 22.Nd4 c3 
       (22...Nc6 23.Nf5 Qd7 24.Nh6=) 
    23.dc3 g6 24.Bg6 fg6 25.c4 
       (25.Qg6?! Rf6 26.Qe4 Nc4 27.Ne6 Qe6 28.Qe6 Re6+=; 
       25.Ne6 Qe6 26.c4 Nf6 27.Qg6 Nc4 28.Qh6 Kg8 29.Qg6 Kh8+–) 
    25...Nf6 
       (25...Nc4 26.Ne6 Theme: Double Attack) 
    26.Qg6 Nc4 27.Qh6 Kg8 28.Qg6 Kh8 29.Ba1 
       (better is 29.Ne6 Qe6 30.Ba1+–) 
    29...Rf7?? 
       (better is 29...Bd7+/-) 
    30.Ne6+– Qe6 31.Rb5 
       (31.Rb5 Rc5 32.Rb6 Nb6 33.Rc5+–) 
    1–0
    
    
    
    Katalymov,Boris N – Muratov,Vladimir
    Alma Ata, 1961
    1.b4 e6 2.Bb2 Nf6 3.a3 d5 4.e3 Be7 5.c4 dc4 6.Bc4 0–0 7.Nf3 Nbd7 8.Qc2 
    Nb6 
       (8...a6 9.d4=) 
    9.Be2 
       (9.Bd3 h6=) 
    9...Bd7 10.Nc3 
       (10.Bf6 Bf6 11.d4 Ba4=) 
    10...Nfd5 
       (10...a5 11.b5=) 
    11.Nd5 
       (11.0–0 a5=) 
    11...Nd5 12.Bd3 
       (12.Be5 f6 13.Bg3 c6=) 
    12...h6 
       (12...f5=) 
    13.h4 
       (13.Ne5 a5 14.b5 Qe8=) 
    13...a6 
       (13...a5 14.Bh7 Kh8 15.Be4+=) 
    14.g4 
       (14.Ne5 a5 15.b5 Rc8=) 
    14...Bf6 
       (14...a5 15.b5+=) 
    15.Nd4 
       (15.Bh7 Kh8 16.Be4 Ba4 17.Qa4 Bb2=) 
    15...Bb5 
       (15...Bh4 16.Bh7 Kh8 17.Be4=) 
    16.Bh7= Kh8 17.g5 Bd4 18.Bd4 f5 19.gf6 
       (19.Bg6 Qd6 20.Bb2 e5 21.Bf5 h5+/-) 
    19...gf6 
       (19...Nf6 20.Rg1+=) 
    20.Bb2 
       (20.Be4 e5 21.Qd1 Be8+/-) 
    20...a5 
       (20...c6 21.Rg1+=) 
    21.ba5 Qd7 
       (21...Rf7 22.Be4+=) 
    22.Bg6 
       (22.Be4 Ba4 23.Qc5 Bc6+/-) 
    22...Ra5 23.Qc5 
       (23.Rg1 Ba4 24.Qe4 Rg8+/-) 
    23...Rg8= 24.Rg1 e5 25.d4 b6 
       (better is 25...e4=) 
    26.de5?? 
       (better is 26.Qc2 ed4 
         A) 27.ed4? Nf4 28.Kd2 Rg6 (worse is 28...Ng6 29.Rg6 Rg6 30.Qg6+/-) 29.Rg6 
          Bd3 (worse is 29...Ng6 30.Qg6 Qg7 31.Rg1 Qg6 32.Rg6+=) 30.Qd3 Nd3–+;
         B) 27.Bd4+=) 
    26...bc5–+ 27.ef6 Rg6 
       (27...Qd6 28.f7 Rg7 29.0–0–0+–) 
    28.f7= Kh7 Do you see the mate threat? 29.f8N Kg8 30.Ng6 Qd6 31.0–0–0 
       (31.Be5 Qa6 32.Nf4 Kf8 33.Nd5 Ra3+=) 
    31...Kf7= 32.e4 
       (32.Ne5 Ke7 33.Rg7 Ke8 34.Rg6+/-) 
    32...Nf4?? 
       (better is 32...Qh2 33.ed5 Qf2=) 
    33.Rd6+– Ne2 34.Kd2 cd6 35.Nh8 Ke7 
       (35...Kf8 36.Rg6+–) 
    36.Rg7 Kd8 
       (36...Kf8+–) 
    37.Nf7 Kc7 38.Nh6 Kc6 39.Nf7 
       (39.Nf5 Ra4 40.Ne7 Kb7+–) 
    39...c4 
       (39...Ra4 40.Nd8 Kb6 41.f3+–) 
    40.Nd8 
       (40.Ke2?! c3 41.Kd1 cb2+–) 
    40...Kb6 41.Rb7 
       (41.Ke2?! c3 42.Kd1 cb2+–) 
    41...Ka6 42.Ke2 c3 43.Rb5 Kb5 44.Bc3 
       (44.Bc3 Ra3 45.Bf6+–) 
    1–0
    
    
    
    Katalymov,Boris N – Muratov,Vladimir
    Novgorod, 1961
    1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 Qe7 5.a3 Ba5 
       (5...Bc5 6.Qh5 g6 7.Qe2+=) 
    6.f4 
       (6.Qh5 g6 7.Qe2 c6+=) 
    6...Nc6 
       (worse is 6...ef4 7.Qh5 Kd8 8.Qa5 Qe4 9.Be2=) 
    7.f5 d6 
       (7...g6 8.Qg4+=) 
    8.Qh5 Kf8 
       (8...Kd8 9.Bg8 Rg8 10.Qh7+=) 
    9.Nc3 
       (9.Ne2 Bb6+=) 
    9...Bc3 
       (9...g6 10.fg6 Qg7 11.Qf3 hg6 12.Nge2+=) 
    10.Bc3= Bd7 
       (10...Qe8 11.Qf3=) 
    11.Rb1 b6 12.Qe2 
       (12.Nf3 g6 13.fg6 Qg7=) 
    12...Nd4 13.Qd3 
       (13.Bd4 ed4 14.Kf2 Re8+=) 
    13...Nh6+= 14.Nh3 
       (14.Kf2 Re8+=) 
    14...b5 
       (14...Nhf5 15.0–0 (worse is 15.ef5 Bf5 16.Qg3 Bh3 17.Qh3 Nc2 18.Kf2 Na3-/+) 
       15...Nh6 16.Nf4+=) 
    15.Ba2 
       (15.Bb3 Nhf5 16.ef5 Bf5+=) 
    15...c5 
       (15...Nhf5 16.Bd5 c6 17.ef5 cd5 18.0–0 Nf5 19.Rf5 Bf5 20.Qf5-/+) 
    16.Bd4 
       (16.Bd5 Re8 17.0–0 c4=) 
    16...ed4 
       (16...c4!? 17.Qf3 ed4-/+) 
    17.Bd5= c4 
       (17...Re8 18.0–0=) 
    18.Qd4+= White gets in control 18...Nf5 19.Qf2 Re8 20.0–0 Qe5 
       (20...Nh6 21.Qa7 Bh3 22.Qe7 Ke7 23.gh3+=) 
    21.Nf4 Nd4 22.Qh4 
       (22.c3 Nb3 23.Qa7 Rd8+/- (23...Nd2?? 24.Qd7 Re7 25.Qh3+–)) 
    22...Be6 
       (better is 22...Ke7!? 23.c3 Nb3=) 
    23.Ne6 
       (23.c3 Bd5 24.ed5 Nc2+/-) 
    23...Ne6+= 24.Rb5 White gets strong play along the open b–file 
    24...Qd4 25.Qf2 Qf2 26.Kf2 Nc5 27.Ke3 a6 
       (27...h5 28.Ra5 Re7 29.d4 cd3 30.cd3+–) 
    28.Rb6+– Ne4 29.Kd4 Nd2 30.Rd1 c3 31.Rb7 Threatening mate: Rf7 
    31...h5 
       (31...h6 32.Rf7 Kg8 33.Rc7 Kh7 34.Rc3+–) 
    32.Kc3 
       (better is 32.Rc7!?+–) 
    32...Ne4 33.Kd4 
       (33.Kb2 Nc5 34.Rf7 Kg8 35.Rf6 Kh7 36.Rd6 Rhf8+–) 
    33...Ng5+/- 34.Rdb1 h4 
       (34...Rh6!? 35.R1b6 Ne6 36.Be6 Re6 37.Ra6 Kg8+/-) 
    35.R1b6+– h3 36.g3 Rh6 
       (36...f5 37.Rd6 Rh6 38.Rdd7+–) 
    37.Rd6 f5 38.Rdd7 Rg6 39.c4 f4 40.gf4 Ne6 41.Kc3 
       (41.Be6 Ree6 42.c5 Re8+–) 
    41...Rf6 42.c5 Rf4 43.c6 Nc5?? 
       (43...Rc8+–) 
    44.Rf7 Rf7 45.Rf7 
       (45.Bf7?! Rc8 46.Bc4 Rc6 (46...Nb7?! 47.cb7 Rb8 48.Bd5-/+) 47.Rf7 Ke8 
       48.Rg7 Nd7+=) 
    45...Kg8 46.Rf3 Kh7 47.Bf7 Ne4 48.Kc2 Ng5 
       (48...g5 49.Be8 Nd6 50.Rh3 Kg7 51.c7+–) 
    49.Rh3!! Nh3 50.Be8 
       (50.Be8 Nf4 51.c7+–) 
    1–0
    
    
    
    Katalymov,Boris N – Smits,Anatolijs
    URS–ch29 sf Novgorod (2), 1961
    1.b4 a5 2.b5 d6 
       (2...b6 3.e4 (3.c4 Bb7 4.Nc3 Nf6 5.Nf3 g6 6.Bb2 Bg7 7.e3 0–0 8.Be2 
       d6 9.0–0 e5 10.d4 e4 11.Nd2 Re8 12.c5 dc5 13.dc5 bc5 14.Na4 Nbd7 
       15.Nb3 Qe7 16.Qc1 c4 17.Bc4 Ng4 Katalymov,B–Simagin,V/Tashkent 1958/
       EXT 2000/0–1 (40)) 3...Bb7 4.d3 d6 5.f4 Nd7 6.Nf3 e5 7.Be2 Ngf6 
       8.0–0 g6 9.c3 Bg7 10.fe5 de5 11.Qe1 0–0 12.Qh4 Ne8 13.Qh3 Nc5 14.Bh6 
       Bh6 15.Qh6 Qe7 16.d4 Ne4 17.Ne5 Meynard,T (2269)–Sanchez,N (2255)/
       France 2009/EXT 2010/½) 
    3.Bb2 Nf6N 
       (3...e5 RR 4.e3 Nf6 (4...g6 RR 5.f4 Bg7 6.Nf3 Nd7 7.Be2 Nh6 
       8.0–0 0–0 9.fe5 de5 10.e4 c6 11.Nc3 Ng4 12.Qe1 a4 13.Ba3 Re8 14.Qg3 
       Nf8 15.Bc4 Nh6 16.bc6 bc6 17.Rab1 Ba6 18.Ba6 Ra6 19.Bc5 Labahn,W 
       (2225)–Meszaros,A (2390) /Eger 1993/EXT 1997/0–1 (49)) 5.c4 g6 
       6.Nf3 Bg7 7.Be2 0–0 8.Nc3 Re8 9.d3 Nbd7 10.0–0 Nc5 11.d4 ed4 12.ed4 
       Nce4 13.Re1 Nc3 14.Bc3 Ne4 15.Bb2 b6 16.Nd2 Bb7 17.Ne4 Be4 18.f3 
       Kleiser,G (2095)–Kostka,A/Vienna 1996/EXT 2000/½ (51)) 
    4.d4 g6 5.Nf3 Bg7 6.e3 Nbd7 7.Be2 0–0 8.0–0 
       (8.c4 Deep Rybka 4 w32 (30m) 8...c5 9.Nbd2 ½ 
       Bigalke,A–Dinckel,J/Hamburg 1999) 
    8...e5 9.c4 Re8 10.Nc3 b6 
       (10...e4 11.Nd2 Nf8 12.Qc2 Bf5 13.h3 h5 14.a4 Ne6 15.Nd5 c6 16.Nf6 
       Qf6 17.Rfb1 Qh4 18.bc6 bc6 19.Nb3 Qg5 20.Kh1 Qh4 21.Bf1 Bh3 22.gh3 Ng5 
       23.Qe2 Re6 24.Bg2 Rf6 25.Kg1 Wolf–Tiemann/ Privatpartie 1998/(Fritz 
       8 (3s)) (31); 
       10...ed4 11.Nd4 Nc5 12.a4=) 
    11.Rc1 
       (11.de5 
         A) 11...Ne5 12.Ne5 Re5 (12...de5 13.Qc2 Qe7 14.Rfd1 Bb7 15.Nd5 
          Nd5 16.cd5 f5 17.Bc4 Qd6+/- 0.78) 13.Bf3 Ra7 14.Nd5 Re8 15.Qd4 
          Nh5 16.Qd2 Nf6 17.Bd4 a4+= 0.69;
         B) 11...de5 
            B1) 12.e4 Nc5 (12...Bb7 13.Qc2 Nc5 14.Rfd1 Qe7 15.Nd2 Rad8 
             16.Nd5 Qd6 17.Ba3 Bc8+/- 0.75; 12...Qe7 13.Nd5 Qd6 14.Nf6 
             Nf6 15.Qc2 Bb7 16.Bd3 c6 17.Rad1 Nd7+= 0.31; 12...a4 
             13.Qc2 a3 14.Bc1 Nc5 15.Be3 Qe7 16.Nd5 Qd6 17.Nf6 Qf6+= 0.53
             ) 13.Qc2 c6 14.Rfd1 Qc7 15.Ba3 cb5 16.Bc5 Qc5 17.cb5 Bb7= 
             0.00;
            B2) 12.Qd2 Qe7 (12...Re6 13.Qc2 Bb7 14.Rfd1 e4 15.Nd4 Rd6 
             16.Na4 c5 17.bc6 Bc6+/- 0.75; 12...e4 13.Nd4 Bb7 14.Rfd1 
             Qe7 15.Qc2 Rad8 16.Rd2 Ne5 17.Rad1 Neg4+= 0.53; 12...Bb7 
             13.Rad1 Qe7 14.Qc2 Rad8 15.e4 Nc5 16.Rd8 Rd8 17.Nd5 Bd5+= 0.41
             ) 13.Rfd1 Nc5 14.Nd5 Nd5 15.cd5 Bf5 16.Rac1 Red8 17.Ba3 Be4+= 
             0.37;
            B3) 12.Qc2 Qe7 (12...Nc5 13.e4 c6 14.Ba3 cb5 15.Bc5 bc5 
             16.Rfd1 Qe7 17.cb5 Bg4+= 0.62; 12...Bb7 13.Rfd1 Qe7 14.e4 
             Nc5 15.Nd2 Rad8 16.Nd5 Qd6 17.Ba3 Ba8+/- 0.72; 12...e4 
             13.Nd4 Bb7 14.Rfd1 Qc8 15.Rd2 Rd8 16.Rad1 c5 17.bc6 Bc6+/- 1.00
             ) 13.Nd5 Nd5 14.cd5 Nc5 15.e4 f5 16.Ba3 fe4 17.Bc4 Kh8+= 
             0.44; 
       11.Re1 
         A) 11...Qe7 
            A1) 12.de5 de5 (12...Ne5 13.Ne5 de5 14.e4 Be6 15.Nd5 Bd5 
             16.ed5 Qd6 17.Qd2 Rad8+= 0.50) 13.e4 Nc5 14.Qc2 c6 15.Rad1 
             Bb7 16.Nd2 cb5 17.cb5 Red8= 0.12;
            A2) 12.a3 Bb7 (12...h6 13.Qc2 Bb7 14.d5 e4 15.Nd4 Nc5 16.Rad1 
             Qe5 17.Rf1 Bc8+= 0.28; 12...Ra7 13.Qc2 h6 14.Rad1 e4 
             15.Nd2 Bb7 16.Qa4 Qe6 17.Rf1 Re7+= 0.53; 12...e4 13.Nd2 
             Bb7 14.Qc2 Qe6 15.Red1 Qf5 16.Rf1 Qg5 17.Rad1 Ng4+= 0.62) 
             13.d5 Nc5 14.Qc2 e4 15.Nd4 a4 16.Nc6 Qd7 17.Rad1 Qf5= 0.22 
            ;
            A3) 12.Qc2 Bb7 (12...Ra7 13.de5 Ne5 14.Ne5 Qe5 15.Nd5 Qe6 
             16.Rad1 Ne4 17.Bg7 Kg7+= 0.56; 12...e4 13.Nd2 Qe6 14.f3 
             Bh6 15.Nce4 Ne4 16.Ne4 f5 17.Bd3 Bb7+= 0.56; 12...h6 
             13.de5 Ne5 14.Ne5 de5 15.e4 c6 16.bc6 Qc5 17.Qa4 Re6+= 0.62 
            ) 13.de5 de5 14.e4 Nc5 15.Nd5 Bd5 16.cd5 Nfe4 17.Bc4 Nd6+= 0.50;
         B) 11...Bb7 
            B1) 12.d5 Nc5 (12...e4 13.Nd4 Nc5 14.Qc2 a4 15.a3 Nfd7 16.Rf1 
             Qh4 17.Rad1 Ne5= 0.12; 12...Bc8 13.e4 Nh5 14.Bc1 Nf4 
             15.Be3 Nc5 16.a3 Qd7 17.h3 f5+= 0.28; 12...Qe7 13.e4 Bc8 
             14.Bc1 Nc5 15.Qc2 h6 16.a3 Qd7 17.Be3 Ng4+= 0.53) 13.Qc2 
             e4 14.Nd4 Nfd7 15.Rf1 Qh4 16.Rad1 Ne5 17.a4 Ned3= –0.13;
            B2) 12.Qc2 Qe7 (12...Ng4 13.Nd5 ed4 14.Bd4 Ngf6 15.Rad1 Ra7 
             16.Qb2 a4 17.a3 Re6+= 0.69; 12...h6 13.de5 de5 14.Rad1 Qc8 
             15.e4 c6 16.Bd3 cb5 17.cb5 Qc7+= 0.44; 12...c6 13.Red1 Rc8 
             14.bc6 Bc6 15.de5 Ne5 16.Ne5 Re5 17.Qd2 Re6+= 0.47) 13.de5 
             de5 14.e4 Nc5 15.Nd5 Qd6 16.Bf1 Nd5 17.cd5 f5+= 0.41;
            B3) 12.a3 Qe7 (12...Ne4 13.Ne4 Be4 14.Nd2 Bb7 15.Qc2 f5 
             16.Rad1 Qe7 17.Bf3 Bf3+= 0.47; 12...h6 13.Qc2 Qe7 14.de5 
             de5 15.e4 Rad8 16.Rad1 c6 17.bc6 Bc6+= 0.50; 12...c5 
             13.bc6 Bc6 14.Rb1 e4 15.Nd2 d5 16.a4 dc4 17.Bc4 Qe7+/- 0.72)
              13.Qd2 h6 14.d5 Nc5 15.Qc2 Rad8 16.e4 Bc8 17.Bc1 Nh5+= 0.47) 
    11...Bb7 
       (11...Qe7 
         A) 12.Qc2 Bb7 (12...Qe6 13.de5 Ne5 14.Rfd1 Ra7 15.Ne5 Qe5 16.Nd5 
          Bf5 17.Be5 Bc2+– 2.47; 12...e4 13.Nd2 Qe6 14.Qa4 Rb8 15.Rfd1 
          Qf5 16.a3 h6 17.Nf1 Ng4+= 0.50; 12...Ra7 13.Nd5 Nd5 14.cd5 e4 
          15.Nd2 Nf6 16.Qc6 a4 17.Ba3 h6= 0.25) 13.d5 Nc5 14.e4 Bc8 
          15.Rcd1 Nh5 16.Bc1 Nf4 17.Be3 f5= 0.22;
         B) 12.Nd5 Nd5 (12...Qd8 13.Qc2 Bb7 14.de5 de5 15.e4 Nc5 16.Rcd1 
          c6 17.Nf6 Qf6+= 0.31) 13.cd5 e4 14.Nd2 Qg5 15.Rc7 Nf6 16.Kh1 
          Nd5 17.Rc1 Bb7= 0.09;
         C) 12.a3 h6 (12...Ra7 13.Re1 e4 14.Nd2 h6 15.Qa4 Bb7 16.Rc2 Qe6 
          17.Rd1 Bc8+= 0.56; 12...Bb7 13.d5 Nc5 14.Qc2 Bc8 15.e4 Bh6 
          16.Rcd1 Bf4 17.Rde1 Bg4+= 0.41; 12...Qe6 13.Nd5 Ra7 14.de5 
          de5 15.Qd2 Nc5 16.Rcd1 Nd5 17.cd5 Qd6+= 0.31) 13.Nd5 Nd5 
          14.cd5 e4 15.Nd2 Qg5 16.Rc7 Nf6 17.Kh1 Nd5+= 0.28) 
    12.Qb3 
       (12.Qc2 
         A) 12...Qe7 13.d5 Nc5 14.e4 Bc8 15.Rce1 Bh6 16.Ba3 Bf4 17.Bc1 Bc1+= 
          0.37;
         B) 12...Ra7 13.d5 Nc5 14.e4 Bc8 15.a3 Bh6 16.Rb1 Bf4 17.Rbe1 Qe7+= 
          0.34;
         C) 12...ed4 13.Nd4 (13.ed4 d5 14.Rfd1 dc4 15.Ne5 Qe7 16.Nc4 Bh6 
          17.Ba3 Qe6= 0.12) 13...Nc5= 14.Rcd1 a4 15.a3 Qe7 16.Bf3 Bf3 
          17.Nf3 Qd7+= 0.47;
         D) 12...Rc8 13.d5 Nc5 14.Rcd1 e4 15.Nd4 Nfd7 16.a3 Ne5 17.Na4 
          Ncd3+= 0.28; 
       12.de5 de5 (12...Ne5 13.Ne5 de5 14.Qc2 Qe7 15.e4 Rad8 16.Nd5 Qc5 
       17.Rfd1 c6+= 0.53) 13.Qc2 Qe7 14.Rcd1 Nc5 15.Nd5 Nd5 16.cd5 e4 
       17.Ne1 Bb2= 0.03; 
       12.d5 h6 (12...Bc8 13.e4 Nc5 14.Qc2 Bh6 15.Rcd1 Bf4 16.Rde1 a4 17.a3 
       Bg4+= 0.44; 12...Nc5 13.Qc2 Bc8 14.e4 a4 15.Rcd1 Nh5 16.Ba3 Nf4 
       17.Bc5 bc5+= 0.37; 12...e4 13.Nd4 Nc5 14.a3 Qd7 15.Qd2 Bc8 
       16.Rcd1 Ng4 17.Ne6 fe6+= 0.44) 13.e4 Nc5 14.Qc2 Bc8 15.Rce1 Qe7 
       16.Bc1 Nh5 17.Be3 Nf4+= 0.31) 
    12...ed4 
       (12...Ne4 13.Ne4 Be4 14.Nd2 Bb7 15.Bf3 Bf3 16.Nf3 a4 17.Qc2 Qe7+= 
       0.34) 
    13.Nd4 
       (13.ed4 Nh5 14.Rce1 Nf4 15.d5 Ne5 16.Na4 Bc8 17.Ne5 de5= 0.12) 
    13...Ne4 14.Ne4 
       (14.Qd1 Qg5 15.Bf3 Ndc5 16.Ne4 Be4 17.Be4 Re4= 0.00) 
    14...Be4 15.Bf3 
       (15.Qd1 Qg5 (15...Nc5+= 16.Qd2 Be5 17.Rfd1 a4= –0.06) 16.Bf3 
       f5 17.Rc3 Ne5+= –0.41; 
       15.Rcd1 Nc5 16.Qa3 a4 17.Rfe1 f5= 0.00) 
    15...Bf3 16.Nf3 
       (16.gf3 Nc5 17.Qd1 a4+= –0.59 (17...Qh4+=)) 
    16...Nc5 17.Qc2 Bb2 18.Qb2 Nd3 19.Qc3 Nc1 20.Rc1 Qe7 21.h4 
       (21.h3 Qe4-/+) 
    21...Rad8 
       (21...Rac8 22.Qd4-/+) 
    22.Rd1 
       (22.g3 Rd7-/+) 
    22...Qf8 
       (22...Qe4 23.Qb3-/+) 
    23.h5 Qg7 24.Qc2 Rd7 25.Nd4 
       (25.Rd4 Rde7-/+) 
    25...Rde7 
       (25...Qh6 26.hg6 hg6 27.Ne2–+) 
    26.Ne2 
       (26.hg6 Qg6 27.Qb3 Re4-/+) 
    26...Re4 
       (26...gh5 27.Nf4 Re5 28.Qe2–+) 
    27.Nf4 Rf4 
       (27...gh5 28.Nh5 Qg6 29.Nf4 Rf4 30.Qg6 hg6 31.ef4–+) 
    28.ef4 Qf6 
       (28...gh5 29.Qd2-/+) 
    29.hg6 hg6 30.g3 Qf5 
       (30...Qe6+=) 
    31.Qc3 
       (better is 31.Qf5!? and White can hope to live 31...gf5 32.Kf1=) 
    31...Re2 32.Rc1 
       (32.Qd4 Qe6-/+) 
    32...Qc5 33.Qf3 Ra2 34.Kg2 Rd2 
       (better is 34...Kg7!?–+) 
    35.Rh1 d5 36.f5 Qe7 
       (36...Qc4?? A poison bait which should not be taken 37.fg6 f5 
       38.Rh4+–) 
    37.fg6 fg6 38.Rh4 g5 39.Rh5 Qe4 
       (39...Qe5 40.Kf1 Rd4 41.Rh6+=) 
    40.Rg5 Kh7 
       (40...Kh8 41.cd5 Qf3 42.Kf3=) 
    41.Qe4 de4 42.Re5 Rd4 
       (42...Kg6 43.Re4 Kf6 44.Kf3=) 
    43.Re7 Kg6 44.Rc7 a4 45.Rc6 Kf5 46.c5 
       (46.Rb6!? Rd2 47.Rb8+=) 
    46...bc5 47.Rc5 Kf6 
       (47...Ke6 48.Rc1 Kd6 49.Kf1=) 
    48.Rc6 
       (48.b6 Rb4 49.Ra5 Rb2+/-) 
    48...Kf5 
       (48...Ke5 49.Rc2+=) 
    49.Ra6 Rb4 50.b6 a3 
       (50...e3!? 51.Ra5 Ke6+/-) 
    51.Kh3 
       (51.Ra3 Rb6 52.Ra5 Ke6+/-) 
    51...Rb2 
       (51...Rb3 52.Kh4+/-) 
    52.Ra3 Rb6 53.Ra5 Kf6 54.Kg4 
       (54.g4 Re6 55.Ra3 Kg5+/-) 
    54...Rb2 55.Rf5 Kg6 56.Rf4 Re2 '=' 57.Kh4 Re1 58.Kg4 Re2 59.Rf8 
    '>=+/–!?' 59...Kg7 60.Rf4 
       (better is 60.Rf5!?+/-) 
    Kg6 ½–½
    
    
    
    Katalymov,Boris N – Nikolayevsky
    Soviet Union, 1961
    1.b4 e5 2.Bb2 d5 3.Be5 Nc6 4.Bb2 Nb4 5.a3 Nc6 6.e3 Nf6 7.Nf3 Be7 8.c4 0–0 
    9.Qc2 
       (9.cd5 Qd5 10.Nc3 Qa5 11.Bb5 a6 12.Bc6 bc6 13.Qc2 Bf5 14.d3 Rab8 
       15.Nd4 Bd3 16.Qd3 Rb2 17.Nc6 Qc5 18.Ne7 Qe7 19.0–0 ½–½ Machete 
       (2305)–bigchess31 (2200)/ICC 2003) 
    9...dc4 10.Bc4 Na5 11.Ba2 c5N 
       (11...b6 12.0–0 Ba6 13.Rc1 c5 14.d4 Rc8 15.d5 c4 16.Nc3 Re8 17.Rd1 
       Bd6 18.Rac1 Qe7 19.a4 Qd7 20.Rd4 Bb7 21.Rcd1 a6 22.Rh4 h6 23.Bb1 Kf8 
       24.Qf5 Qf5 25.Bf5 Rcd8 26.Ne4 De Smet,K–Macchiagodena,M/corr ICCF 
       TT–4–90 SF 1995/½–½ (42); 
       11...Qd7 12.0–0=) 
    12.Ng5 h6 
       (better is 12...g6!?=) 
    13.h4+/- c4? 
       (better is 13...hg5 14.hg5 Re8+/-) 
    14.Bf6+– g6 15.Bb2 
       (15.Bc4?! Nc4 16.Be7 Qe7 17.Qc4 hg5 18.hg5 Qg5+–) 
    +/-
    
    
    
    Katalymov,Boris N – Vasiliev
    Minsk, 1961
    1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 a5 7.b5 Nbd7 8.d4 ed4 
    9.ed4 
       (9.Bd4 Nc5=) 
    9...d5 
       (9...a4 10.0–0=) 
    10.c5 Re8 11.Nc3 b6 12.Ne5 
       (12.c6 Nf8=) 
    12...Ne5 
       (12...bc5? 13.Nc6 cd4 14.Na4 Bb4 15.Kf1 Re2 16.Nd8+–) 
    13.de5 Ne4?? 
       (13...d4 14.Bf3 dc3 15.Bc3 Be6 16.Ba8 Qa8–+) 
    14.Qd5+/- Qd5 
       (14...Nc3 15.Qa8 Ne2 16.Rd1+/-) 
    15.Nd5+–
    
    
    
    Katalymov,Boris N – Kolesnikova
    SU, 1961
    1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 h6 7.0–0 Be6?! 8.Nc3 
    Nbd7 9.d4 c6 10.Qc2 +=
    
    
    
    Katalymov,Boris N – Gusarov
    Grd–Man Kasachstan, 1961
    1.b4 f5 2.Bb2 Nf6 3.f4 e6 4.a3 b6 5.Nf3 Bb7 6.e3 Be7 7.c4 
       (7.Be2 a5 8.b5 0–0=) 
    7...0–0 
       (7...c5 
         A) 8.b5 
            A1) 8...a6 9.Nc3 (9.ba6 Na6 10.Be2 0–0 11.0–0 d5 12.Ne5= 
             0.00; 9.Be2 ab5 10.cb5 0–0 11.0–0 d6 12.Nc3= –0.09)
              9...0–0 10.Be2 d5 11.Ng5 Qd7 12.0–0= 0.00;
            A2) 8...0–0 9.Be2 (9.Nc3 a6 10.Be2 ab5 11.Nb5 d5 12.Be5= 
             –0.06) 9...a6 10.Nc3 d5 11.Ng5 Qd7 12.0–0= 0.00;
         B) 8.bc5 
            B1) 8...Bc5 9.Be2= (9.Nc3 0–0 10.Be2 Qe8 11.0–0 Qg6 12.d4= 
             –0.03; 9.d4 Be7 10.Bd3 Nc6 11.0–0 Rc8 12.Nc3= –0.06 
            ; 9.Bd3 0–0 10.Be2 Ne4 11.0–0 Qc7 12.d4= –0.06; 9.g3 Nc6 
             10.Bg2 0–0 11.d4 Bd6 12.0–0= –0.19) 9...0–0 10.0–0 Nc6 
             11.d4 Bd6 12.Nc3= 0.13;
            B2) 8...bc5 9.Be2 (9.Nc3 0–0 10.Be2 Nc6 11.Rb1 Rb8 12.0–0= 
             –0.03; 9.Bd3 Qb6 10.Qc2 Bf3 11.gf3 0–0 12.Nc3= –0.12
             ) 9...0–0 10.0–0 Nc6 11.Nc3 Rb8 12.Rb1= 0.00; 
       7...a5 8.b5 (8.ba5) 
         A) 8...c6 9.Be2 (9.bc6) 9...cb5 10.cb5 0–0 11.0–0 Qc7 12.Nc3+= 
          0.38;
         B) 8...0–0 9.Be2 Re8 10.0–0 c6 11.Nc3 Ne4 12.d3+= 0.38;
         C) 8...Ra7 9.Be2 (9.Qa4) 9...0–0 10.0–0 Qe8 11.d3 Ng4 12.Qd2= 
          0.22) 
    8.Nc3 
       (8.Be2 
         A) 8...a5 9.b5 Ne4 10.0–0 Bf6 11.d4 Qe8 12.Nfd2= 0.25;
         B) 8...Ne4 9.0–0 Bf6 10.Qc2 Bb2 11.Qb2 a5 12.d3= 0.19;
         C) 8...c5= 9.bc5 (9.Qa4 Ne4 10.0–0 Bf6 11.Qc2 cb4 12.ab4= 0.06
          ; 9.b5 a6 10.ba6 Na6 11.0–0 d5 12.Ne5= 0.00; 9.Qb3 Nc6 
          10.b5 Na5 11.Qc3 d5 12.d3= 0.00) 9...Bc5 10.0–0 Ne4 11.Nc3 
          Nc3 12.Bc3= 0.16;
         D) 8...a6 9.Nc3 (9.0–0 c5 10.bc5 bc5 11.Nc3 Nc6 12.Rb1= –0.03
          ; 9.Bc3; 9.Ra2; 9.Qc2) 9...Ne4 10.0–0 Bf6 11.Qc2 d6 12.Ne4= 
          0.19;
         E) 8...Qe8 9.0–0 (9.Nc3 c5 10.Qa4 Qg6 11.0–0 a6 12.Rfb1= 0.03
          ) 9...Qg6 10.Nc3 a6 11.d3 Nc6 12.d4= 0.09) 
    8...Ne4 
       (8...c5 9.b5 (9.bc5 Bc5 10.Be2 Qe8 11.0–0 Qg6 12.d4= –0.03) 
       9...a6 10.Be2 d5 11.Ng5 Qd7 12.0–0= 0.00; 
       8...a5 9.b5 Ne4 10.Ne4 fe4 11.Nd4 Rf7 12.Qc2= –0.09) 
    9.Be2 
       (9.d3 Nc3 (9...Nf6 10.Be2 Ng4 11.Qd2 a5 12.b5= 0.09) 10.Bc3 
       Bf6 (10...a6 11.Be2 Bh4 12.Nh4= 0.13) 11.Bf6 Qf6= 12.Be2= 
       0.00) 
    9...Bh4 10.g3 Nc3 
       (10...Bf6 11.0–0= a5 12.d4= 0.00) 
    11.Bc3 Bf6 12.d4 
       (12.Bf6 Qf6 13.0–0 a5=) 
    12...d6 13.Qb3 Nd7 14.0–0–0 
       (14.Rd1 a6=) 
    14...c5 
       (14...Qe7!?+=) 
    15.dc5= dc5 
       (15...Bc3 16.Rd6 bc5 17.Qc3+/-) 
    16.Bf6+= gf6 
       (worse is 16...Rf6 17.Qa4 Rf7 18.Ne5+/-) 
    17.Rhg1 
       (17.Qa4 Rf7+=) 
    17...Qe7 
       (17...cb4 18.Qb4 Kh8 19.Nd4+=) 
    18.g4+=
    
    
    
    Katalymov,Boris N – Platonov,Igor V
    Spartak–ch Minsk, 1962
    1.b4 d5 2.Bb2 Bf5 3.e3 e6 4.c4 Nf6 5.Nf3 Be7 6.Nc3 
       (6.Bf6 Bf6 7.d4 0–0=) 
    6...0–0+= 7.c5 
       (7.a3 Nbd7+=) 
    7...Nbd7 
       (7...b6 8.d4+=) 
    8.Nd4= Bg6 
       (8...Bg4!? 9.f3 Bh5=) 
    9.c6+= bc6 10.Nc6 Qe8 11.Ba6 
       (11.Nb5!? Nb8 12.Ne7 (12.Nca7? Qd7–+) 12...Qe7 13.Bf6 gf6 14.Qg4+=) 
    11...Bd6= 12.Bb7 Rb8 13.Nb8 Qb8 14.Ba6 
       (14.Bc6 Ne5 15.Bb5 c6=) 
    14...Qb4+= 15.Bc1 
       (15.Na4 Nc5 16.Nc5 Qb2+= (worse is 16...Qc5 17.Bf6 gf6 18.a4=)) 
    15...Nc5 
       (15...d4 16.ed4 Qd4 17.Be2-/+) 
    16.Be2 Qh4 
       (16...d4 17.ed4 Qd4 18.0–0-/+) 
    17.h3 
       (17.g3 Qh3 18.d4 Nce4-/+) 
    17...Nd3 
       (17...d4 18.Nb5 Be5 19.Ba3-/+) 
    18.Bd3 Bd3 19.a4 
       (19.Qa4 Qg5 20.g3 Ne4 21.Ne4 de4–+ (21...Be4?! 22.Rh2-/+)) 
    19...Ne4 
       (better is 19...d4!? 20.ed4 Ne4–+) 
    20.Ne4-/+ de4 21.Ba3 
       (21.Bb2!?-/+) 
    21...Bg3!–+ The mate threat is Bxf2 22.Rf1 
       (22.fg3 Qg3 A classical mating theme) 
    22...Bf1 
       (22...Qf6 23.Be7 Qe7 24.fg3–+) 
    23.Kf1 
       (23.fg3 Qf6 24.Be7 Qe7 25.Kf1 Rd8–+) 
    23...Qf6 Do you see the mate threat? 24.f4 Rd8 
       (24...ef3 25.gf3 Rd8 26.Bc5–+) 
    25.Rb1 e5 26.Bb2 Qa6 27.Kg1 ef4 28.Be5 Qg6 29.Bc7?? 
       (better is 29.ef4 e3 30.d3–+) 
    29...f3! 30.Bg3 
       (30.Qf3 ef3) 
    30...Qg3 31.Qf1 
       (31.Qf3 ef3 32.Kf1 Qg2 33.Ke1 Qe2) 
    Rd2 
       (31...Rd2 32.Rb8 Qb8 33.Qf2 Rd1 34.Qf1 Qg3 35.Qd1 Qg2#) 
    0–1
    
    
    
    Katalymov,Boris N – Kotkov,Yuri M
    Spartak–ch Minsk, 1962
    1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0–0 5.e3 d6 6.Be2 e5 7.0–0 c6 8.a4 
       (8.c5 e4 9.Nd4 dc5 10.bc5 Nbd7 11.Nb3 Qe7 12.Qc2 Re8 13.Na3 a5 
       14.Rac1 a4 15.Nd4 Bf8 16.Nc4 Qc5 17.Ba3 Qd5 18.Bf8 Rf8 19.f3 b5 20.fe4 
       Ne4 21.Bf3 Re8 22.d3 bc4 Warner,D (2230)–Bratovic,B (2290)/Olympiad, 
       Bled SLO 2002/1–0 (56)) 
    8...a5N 
       (8...Nbd7 9.b5 Re8 10.d4 e4 11.Nfd2 d5 12.Nc3 h5 13.h4 Nf8 14.g3 N8h7 
       15.Kg2 Bg4 16.Bg4 Ng4 17.cd5 cd5 18.Qb3 Ngf6 19.Ne2 Qd7 20.Rfc1 Rad8 
       21.b6 a6 22.Rc7 Qg4 23.Nf4 carocan (1775)–atesz (1885)/kurnik 2011/
       0–1) 
    9.b5 c5 10.d4 e4 11.Nfd2 Qe7 12.Nb3 Bf5 13.Qd2 b6 14.Nc3 Nbd7 15.h3 h5 
    16.f4 ef3 17.Bf3 Bh6 18.Rae1 Rae8 19.Qd1 Be3 20.Kh1 Qd8 21.Bc6 Bh6 22.dc5 
    dc5 23.Nd5 Nd5 24.Re8 
       (worse is 24.Qd5 Re1 25.Re1 Qh4–+) 
    24...Re8 25.cd5 Re3 26.Rf3? 
       (better is 26.Bc1 Rd3 27.Qe2 Bc1 28.Nc1-/+) 
    26...Bg4!–+ 27.Nd2 
       (27.hg4 Ne5 Double attack (27...Ne5 Decoy)) 
    27...Rd3!! 
       (27...Bf3?! 28.Nf3 Bg7 29.Qd2–+) 
    28.Bc1 
       (28.Rd3 Bd1 Pinning (28...Bd1 Deflection)) 
    28...Bf3 29.gf3 Ne5 30.Qe2 Re3 31.Qd1 
       (31.Qf1 Qh4 32.Kg2–+) 
    31...Nd3 32.Ne4 Re4! 33.fe4 
       (33.Qf1 Re1 34.Qe1 Ne1 35.Be3 Qh4 36.Kh2 Bf4 37.Kg1 Be3 38.Kh2 Qf2 
       39.Kh1 Qg2) 
    33...Nf2 
       (33...Bc1?! 34.Qd3 Qh4 35.Kg2-/+; 
       33...Nc1 34.d6 c4 35.d7–+) 
    34.Kg2 Nd1 
       (34...Nd1 35.Ba8 Bc1 36.Bb7 Qg5 37.Kf3 Qd2 38.e5 Qf2 39.Ke4 Qe3) 
    0–1
    
    
    
    Katalymov,Boris N – Kirillov,Vladimir Grigorevic
    Spartak–ch Minsk, 1962
    1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Nbd7 6.a4 Bd6 7.c4 0–0 8.Nc3 
       (8.cd5 Nd5 9.e4 Nf4+=) 
    8...b6 
       (8...Re8 9.Qb3+=) 
    9.d4= Bb7 10.cd5 Nd5 11.Be2 
       (11.Bc4 Nc3 12.Bc3 Bf3 13.Qf3 cd4 14.ed4 Rc8+=) 
    11...Nb4 
       (11...Nc3 12.Bc3 Rc8 13.Rc1+=) 
    12.0–0 
       (12.Rc1 Qc7=) 
    12...e5 
       (12...Rc8 13.Rc1=) 
    13.a5 
       (13.d5!?=) 
    13...ba5 
       (13...cd4 14.ed4 ba5 15.Re1+=) 
    14.dc5 Nc5 15.Na4 Ne6 
       (15...Na4 16.Qa4 a6 17.Qa5 (17.Ne5? ab5 18.Qd1 Qe7–+) 17...ab5 
       18.Qd8 Rfd8 19.Ne5 Ra1 20.Ra1=) 
    16.Ne5= Be5 
       (16...Rc8 17.Nc4 Qg5 18.g3+=) 
    17.Be5 Qg5 The mate threat is Qxg2 18.Bg3 Rfd8 19.Qb3 Be4 
       (19...Rac8!? 20.h4 Qe7=) 
    20.Rfc1 
       (20.Nc3 Bd3 21.Ra5 Be2 22.Ne2 Qe7+/-) 
    20...Qg6 
       (20...Qf5 21.Qb2+=) 
    21.Nc3+/- Nd3 
       (21...Bc2 22.Qa3 Qf6 23.Bf3+=) 
    22.Rd1 Ndc5 23.Qa3 
       (23.Qc4 Rd1 24.Bd1 a6 25.Ra5 Bb7+/-) 
    23...Bc2 24.Nd5 
       (better is 24.Rd6!?+/-) 
    24...Rd7= 25.Rd2 Nb3 26.Bd3 Bd3 
       (26...Qh5 27.Be2 Qg5 28.Rc2 Na1 29.Qa1 Qd5 30.h3+=) 
    27.Qb3 Nc5 28.Qa2 Qe4 
       (28...Qg5 29.Nc7 Rad8 30.Qa3+=) 
    29.Nc7 
       (29.Nc3 Qb4 30.Nd5 Qc4 (worse is 30...Qb5 31.Nc7 Rc7 32.Bc7+/-) 31.Qc4 Bc4= 
      ) 
    29...Rc8 
       (29...Rad8 30.Qa3 (30.Qa5 Nb3 31.Qc3 Na1–+) 30...Qb4 31.Rdd1 Qa3 
       32.Ra3+=) 
    30.Qa3= 
       (30.Qa5? Nb3 31.Qa6 Rcd8–+ (31...Rdc7?! 32.Bc7 Rc7 33.Qd6=)) 
    30...Qb4 Attacks the isolani on b5 31.Qb4 
       (better is 31.Rdd1!? h5 32.h4=) 
    31...ab4-/+ 32.Rb2 
       (32.Ra7 Ne4 33.Rb2 Bc4-/+) 
    32...b3 
       (32...Rcc7 33.Bc7 f6 34.b6 (worse is 34.Ra7 Bb5 35.Rb1 Nd3+/-) 34...ab6 
       35.Bb6+–) 
    33.f3 
       (better is 33.Na6!? Bc2 34.Nc5 Rc5 35.b6–+) 
    33...Bc2–+ 
       (33...Rcc7 34.Bc7 Bb5 35.Bb6+– (35.Ra7?! h5 36.h3 Bc4+=)) 
    34.Ra7?? 
       (better is 34.Rc1 Rcc7 35.Bc7 Rc7 36.Rcc2 bc2 37.Rc2–+) 
    34...Rd1 35.Kf2 
       (35.Be1 Nd3 36.h3 Re1 37.Kh2 Nb2–+) 
    35...Nd3 36.Ke2 Nb2 
       (36...Nb2 37.Be5 Nc4–+) 
    0–1
    
    
    
    Katalymov,Boris N – Zaitsev,Alexander N
    Spartak–ch Minsk, 1962
    1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 b6 5.Nf3 Bd6 6.c4 0–0 7.Nc3 
       (7.d4 a5 8.c5 Be7=) 
    7...Bb7 
       (7...c6 8.d4=) 
    8.Nb5 
       (8.d4 a5 9.c5 Be7=) 
    8...Nbd7 
       (8...Be7 9.Be5 Ne8 10.cd5 Bd5 11.Nc3=) 
    9.Nd6 cd6 10.cd5 
       (10.d3 Rc8=) 
    10...Bd5 
       (10...e5 11.Bc4=) 
    11.Ba6 Nb8 
       (11...Rb8 12.Rc1=) 
    12.Be2 e5 13.0–0 Nc6 
       (13...a5 14.d3=) 
    14.Rc1 
       (14.d3 Ne7+=) 
    14...Nd7 
       (14...a5 15.b5 Na7 16.a4=) 
    15.Qc2 
       (15.d3 Ne7+=) 
    15...Rc8 
       (15...e4 16.Qc3 Nf6 17.Ng5+=) 
    16.Qd3 White is in command 16...Nf6 17.Ng5 h6 
       (17...Ne7 18.Rc8 Qc8 19.f4=) 
    18.Nh7 Nh7 19.Qd5 Nf6 20.Qf3 
       (20.Qb3 Qe7+/-) 
    20...Qd7 
       (20...e4 21.Qg3 Ne5 22.f4 ef3 23.Bf3+=) 
    21.Ba6+/- Rc7 22.Rc3 
       (22.Bd3 Ne7 23.Bb5 Qc8+/-) 
    22...Nb8 
       (22...e4 23.Qe2+=) 
    23.Bb5+/- Qe7 24.Rc7 Qc7 25.Rc1 Qe7 26.Qf5 a6 
       (26...Qe6 27.Qe6 fe6 28.Bc4+/-) 
    27.Bd3 
       (27.Bc4 a5+/-) 
    27...b5+= 28.f4 
       (28.Bc2 Qd7+/-) 
    28...Re8 29.Rc8 Nbd7 30.Rc7 Qd8 31.Rc6 Nb8 32.Rc1 
       (32.Rd6 Qd6 33.fe5 Qd8 34.ef6 g6+=) 
    32...Nbd7 
       (32...Qe7 33.Be2+=) 
    33.g3 
       (33.Be2 Qe7+=) 
    33...Qb6 
       (33...Qa8 34.Be2=) 
    34.Bb1 
       (34.Bf1 Qb7+=) 
    34...Qb7 35.Qd3 Nb6 
       (35...Qf3 36.Ba2= (36.Qd6 Ng4 37.Bh7 Kh8 38.Rf1 Qe2 39.Qh6 gh6 
       40.Rf3 Qf3 41.Be5 Nde5 42.h4 Qg3 43.Kf1 Qf2)) 
    36.fe5 
       (36.Ba2!? Na4 37.Ba1+=) 
    36...de5= 37.Rf1 
       (37.Qf5 Nc4 38.Rc4 bc4 39.Be5 Re6+=) 
    37...Nc4+= 38.Rf6 
       (38.Bc3!?+=) 
    38...gf6-/+ 39.Qh7 Kf8 40.Bc3 
       (40.Be4 Qd7 41.Bc3 Nd2–+) 
    40...Qf3–+ 41.Bd3 
       (41.Bc2–+) 
    41...Nd2 
       (41...Na3?! 42.Qh6 Ke7 43.Qh4–+) 
    42.Qh6 
       (42.Bd2 Qd1 43.Kf2 Rd8–+) 
    42...Ke7 43.Bd2 Qd1 44.Kf2 Qd2 45.Be2 Rc8 46.Qh5 Rc1 47.Kg2 
       (47.Qh7 Ra1 48.Kf3 Qc1–+) 
    47...Qe3 
       (47...Qe1 48.Kh3 Rc2 49.Bf3–+) 
    48.Qf3 Qf3 
       (48...Rg1 49.Kh3 Qf3 50.Bf3–+) 
    49.Bf3 Rc3 
       (49...Rc3 50.Bb7 Ra3–+; 
       49...Ra1 50.Bb7 Ra3 51.Kf2–+) 
    0–1
    
    
    
    Katalymov,Boris N – Kondratiev,Pavel E
    Spartak–ch Minsk, 1962
    1.b4 f5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.c4 0–0 6.Nc3 Ne4 7.f4 Bf6 8.d4= Nc3 
    9.Bc3 a6 10.a4 ab5 
       (10...b6 11.Be2 (11.Nf3= Bb7 12.Bd3 Bh4 13.g3 Bf6= –0.19) 
       11...Bb7 (11...Bh4 12.g3 Be7 13.Bf3 c6= –0.09; 11...ab5 12.ab5 
       Ra1 13.Qa1 Bb7= 0.12) 12.Nf3 Bh4 13.g3 Bf6= –0.16; 
       10...Bh4 11.g3 Be7 12.Kf2 d5 13.Kg2 b6= –0.06; 
       10...d6 
         A) 11.Bd3 Bh4 (11...c5 12.Nf3 b6 13.0–0 Bb7= –0.03; 
          11...ab5 12.ab5 Ra1 13.Ba1 Nd7= 0.00; 11...b6 12.Nf3 Bb7 
          13.0–0 c5= –0.03; 11...c6 12.Nf3 b6 13.0–0 Bb7= 0.12) 
          12.g3 Bf6 13.Nf3 b6= –0.13;
         B) 11.Be2 c5 (11...Bh4 12.g3 Bf6 13.Nf3 b6= –0.03; 11...b6 
          12.Bf3 c6 13.bc6 Qc7= 0.12) 12.Nf3 b6 13.0–0 Bb7= –0.06
          ;
         C) 11.Kf2 Nd7 (11...c5 12.bc6 Nc6 13.Rb1 b6= –0.16) 12.Qd3 
          e5 13.a5 e4+= –0.28;
         D) 11.Ne2 b6 (11...Nd7 12.Kf2 ab5 13.cb5 Be7= –0.22; 
          11...ab5 12.ab5 Ra1 13.Qa1 Nd7= –0.16; 11...c6 12.Kf2 b6 
          13.Ng3 Bb7= –0.22) 12.Kf2 Bb7 13.Qb3 Bh4+= –0.41;
         E) 11.a5 Nd7 (11...c5 12.bc6 Nc6 13.Nf3 Qe7= –0.09; 
          11...ab5 12.cb5 Qe7 13.Nf3 Nd7= 0.00) 12.Qb3 Bh4 13.g3 Be7= 
          –0.09;
         F) 11.Nf3 c5 (11...b6 12.Bd3 Bb7 13.0–0 c5= –0.06; 11...c6 
          12.Bd3 cb5 13.ab5 Nd7+= 0.31) 12.Be2 b6 13.0–0 Bb7= –0.06
          ; 
       10...c5 
         A) 11.Ne2 cd4 (11...d6 12.dc5 Bc3 13.Nc3 Qa5= 0.03; 
          11...Qc7 12.dc5 Qc5 13.Bf6 Rf6= 0.03) 12.Nd4 d6 13.Be2 e5= 
          –0.13;
         B) 11.Nf3 b6 (11...d6 12.Be2 b6 13.0–0 Bb7= –0.06; 11...d5 
          12.Be2 Nd7 13.0–0 Nb6= 0.00; 11...Qc7 12.Be2 b6 13.0–0 Bb7= 
          –0.03) 12.Be2 Bb7 13.0–0 d6= –0.13;
         C) 11.bc6 Nc6 12.Nf3 d6 13.Be2 Rb8= 0.09; 
       10...c6 
         A) 11.a5 ab5 (11...d6 12.Nf3 b6 13.ab6 Qb6= 0.12; 11...Bh4 
          12.g3 Bf6 13.b6 d5= 0.22) 12.cb5 cb5 13.Bb5 b6= –0.19;
         B) 11.c5 d6 (11...cb5 12.ab5 d6 13.Bb4 dc5= –0.03; 
          11...ab5 12.ab5 Ra1 13.Qa1 d6+= 0.44) 12.cd6 Qd6 13.Nf3 cb5= 
          –0.03;
         C) 11.Kf2 b6 (11...d6 12.Nf3 b6 13.Qb3 Bb7= –0.06; 
          11...ab5 12.ab5 Ra1 13.Qa1 cb5= –0.09; 11...Bh4 12.g3 Bf6 
          13.Nf3 d6= 0.03; 11...Be7 12.bc6 dc6 13.Nf3 Nd7= 0.00)
           12.Qb3 ab5 13.ab5 Ra1+= –0.31;
         D) 11.Be2 Bh4 (11...d6 12.Nf3 b6 13.0–0 ab5= 0.25; 11...b6 
          12.Nf3 d6 13.0–0 ab5= 0.25; 11...ab5 12.ab5 Ra1 13.Qa1 cb5= 
          0.12; 11...cb5 12.ab5 Bh4 13.g3 Be7= 0.19) 12.g3 Be7 
          13.bc6 dc6= –0.03;
         E) 11.bc6 Nc6 12.Nf3 d6 13.Rb1 Qe7= 0.00;
         F) 11.Bd3 Bh4 (11...d6 12.Nf3 b6 13.0–0 Bb7= 0.12; 
          11...ab5 12.ab5 Ra1 13.Qa1 cb5= 0.12; 11...b6 12.Nf3 Bb7 
          13.0–0 c5= 0.03; 11...d5 12.c5 ab5 13.ab5 Ra1= 0.00; 
          11...Be7 12.Nf3 b6 13.0–0 ab5+= 0.28) 12.g3 Be7 13.Nf3 b6= 
          0.00;
         G) 11.ba6 Na6 12.Nf3 d6 13.Be2 Nc5= –0.16;
         H) 11.Nf3 d6 (11...b6 12.Be2 d6 13.0–0 ab5= 0.22; 11...ab5 
          12.ab5 Ra1 13.Qa1 cb5= 0.22; 11...cb5 12.ab5 b6 13.Be2 Bb7= 
          0.25; 11...c5 12.Be2 b6 13.Qd2 Qe7= 0.22; 11...Be7 
          12.Bd3 b6 13.0–0 ab5+= 0.28; 11...Ra7 12.Be2 b6 13.0–0 ab5+= 
          0.31) 12.Bd3 b6 13.0–0 Bb7= 0.12) 
    11.ab5 Ra1 12.Qa1 d6 
       (12...d5 13.Bb4 Re8= 0.19) 
    13.Nf3 b6 
       (13...Nd7= 0.22) 
    14.Qa8 Nd7 15.Kd2 
       (15.e4 Rf7+=) 
    15...Be7 16.Bd3 Nf6 17.Ra1 Bd7 
       (better is 17...d5!?=) 
    18.Qd8+/- Rd8 19.Ra7 Rc8 
       (19...Ne4 20.Kc2 Rc8 21.Bb4+/-) 
    20.Bb4 
       (20.Ke2 Kf7+/-) 
    20...Kf8 
       (20...Kf7 21.Ng5 Kg6 22.Ke2+/-) 
    21.h3 h6 22.g4 
       (22.Bc3!?+/-) 
    22...fg4= 23.hg4 Ng4 24.e4 
       (24.Ke2 Kf7=) 
    24...Nf2 
       (24...e5 25.f5=) 
    25.Bb1 
       (25.Bc2 d5 26.Be7 Ke7 27.ed5 ed5+=) 
    25...d5 26.Be7 Ke7 27.ed5 
       (worse is 27.cd5 ed5 28.ed5 Bb5-/+) 
    27...ed5 28.Ne5 Ne4 29.Be4 de4 30.Ke3 
       (30.Nd7 Kd7 31.Ke3 Kd6=) 
    30...Bf5 31.c5 Ke6 
       (31...bc5 32.dc5 Kf6 33.Ra6 Ke7 34.Nc6 Ke8 35.Nd4+/-) 
    32.Nc6 g6 
       (better is 32...bc5 33.dc5 g6=) 
    33.d5+– Kd5 34.Ne7 
       (34.Ne7 Kc5 35.Nc8+–) 
    1–0
    
    
    
    Katalymov,Boris N – Estrin,Yacov
    Spartak–ch Minsk, 1962
    1.b4 e5 2.Bb2 f6 3.e4 d5 4.f4 ef4+= 5.Qh5 g6 6.Qd5 Qd5 7.ed5 Bb4 8.Bc4 Bf5 
    9.Ne2 Bd6 10.Nbc3 Nd7 11.Nd4 Ne5 12.Bb3 
       (12.Bb5 Bd7 13.0–0 (13.Rb1 Ne7 14.0–0 g5 15.Rfe1 0–0–0 16.Bd7 Rd7 
       17.Ne6 Re8) 13...Ne7 14.Rae1 g5 15.Ne4 Nd5 16.c4 Nb6 17.c5 Be7; 
       12.Nf5 Nc4 13.Nd6 cd6 14.Rb1 0–0–0 15.Ne2 Nb2 16.Rb2 g5 17.g3 fg3; 
       12.Be2 
         A) 12...Nh6 13.Nf5 (13.0–0 Bc5 14.Rf4 0–0–0 15.Na4 Bd4 16.Rd4 Bc2 
          17.Rc1 Ba4) 13...Nf5 14.Ne4 Nd7 15.Nd6 cd6 16.0–0 Rc8 17.Rf4 Rc2;
         B) 12...Bg4 13.Ne4 (13.Bg4 Ng4 14.0–0 Ne7 15.Ndb5 Kf7 16.Nd6 cd6 
          17.Rf4 Ne5) 13...f5 (13...Be2 14.Ne2 Nc4 15.Bc3 0–0–0 16.Nf6 Ne7 
          17.0–0 g5) 14.Nd6 cd6 15.Bb5 Ke7 16.h3 Bh5 17.0–0 Nf6;
         C) 12...Bd7 
            C1) 13.Ne4 Kf7 14.c4 Re8 15.Nd6 cd6 16.0–0 Nh6 17.Rf4 Kg7;
            C2) 13.Rb1 Ne7 (13...f5 14.Bc1 0–0–0 15.Ndb5 Bb5 16.Nb5 Nf6 
             17.d4 Neg4) 14.0–0 g5 15.g3 Bh3 16.Rf2 Rg8 17.Ndb5 Bf5;
            C3) 13.Ne6 Ne7 14.d4 Nf7 15.Ng7 Kd8 16.Ne6 Ke8 17.0–0 Nd5;
            C4) 13.0–0 Ne7 (13...f5 14.Ndb5 Bb5 15.Nb5 Nf6 16.Rf4 Kf7 
             17.Nd6 cd6; 13...Kf7 14.Ndb5 Bb5 15.Nb5 Ne7 16.d4 Nd7 17.c4 a6 
            ; 13...g5 14.Ne6 Ne7 15.d4 N5g6 16.Rae1 Nf5 17.Ne4 Be6) 14.Rab1 
             Bb4 15.Ndb5 0–0–0 16.d4 Nf7 17.a3 Bc3;
         D) 12...Ne7 13.Nf5 Nf5 14.Ne4 Ne7 15.d4 Nd7 16.c4 Bb4 17.Kf2 0–0) 
    12...Ne7 13.Ncb5 
       (13.Ne6 c6 (13...g5 14.0–0–0 Kd7 15.Rhe1 c6 16.d4 Ng4 17.dc6 bc6; 
       13...Kd7 14.Nf4 g5 15.Nfe2 c6 16.0–0 Bg6 17.Rf6 Nd5; 13...a6 14.Nf4 
       Kf7 15.0–0 b5 16.d3 Ng4 17.Rae1 b4; 13...Rc8 14.Nf4 c6 15.dc6 N5c6 
       16.Ncd5 Rf8 17.0–0 Nd5) 14.Nf4 Kd7 15.0–0 Bc5 16.Kh1 Rae8 17.Ne6 Bb4 
      ; 
       13.Ndb5 g5 (13...a6 14.Nd6 cd6 15.0–0 g5 16.g3 Rg8 17.Ba3 Kd7; 
       13...Kd7 14.0–0 g5 15.Nd6 cd6 16.g3 Rhg8 17.Rae1 Rac8; 13...Rd8 
       14.0–0 g5 15.Rae1 a6 16.Nd6 cd6 17.g3 Rg8; 13...0–0–0 14.0–0 g5 15.d4 
       Ng4 16.Rfe1 Rhe8 17.Na7 Kb8) 14.Nd6 cd6 15.Ba3 0–0–0 16.Nb5 Nf7 
       17.Na7 Kc7; 
       13.0–0 Bc5 14.Rf4 g5 15.Na4 gf4 16.Nc5 0–0–0 17.Nf5 Nf5; 
       13.Nf5 Nf5 14.Ne4 Kf7 15.0–0 g5 16.g3 Rhg8 17.Kh1 Nd7) 
    13...a6 
       (13...a5 14.Nf5 Nf5 15.a4 Kd7 16.0–0 g5 17.g3 Rhg8; 
       13...0–0–0 14.Nf5 Nf5 15.0–0 g5 16.Na7 Kb8 17.Nb5 Bc5) 
    14.Nd6 cd6 15.0–0 
       (15.Rf1 g5 16.Nf5 Nf5 17.g3 0–0) 
    15...Be4 
       (15...g5 16.Rae1 Kf7 17.g3 Rhg8) 
    16.Rf4 f5 17.Nf3 Bf3 18.gf3 g5 19.Rb4 0–0–0 20.Kf2 N7g6 21.Re1 Rhe8 22.d4 
    Nf7 23.Re6 Nf4 24.Bc1 Ng6 25.Rc4 
       (25.Rf6 Rd7 26.Rf5 h6+/-) 
    25...Kd7 26.Rc3 
       (26.Rf6 Rf8 27.Rb4+/- (27.Rf5?! Ne7 28.Rf7 Rf7=)) 
    26...f4= 27.a4 Re7 
       (27...b5 28.Re8 Re8 29.Rc6=) 
    28.a5+= Rc8 
       (28...Rb8 29.Ba4 Kd8 30.Rb3+=) 
    29.Rd3 
       (29.Ba4!? Kd8 30.Rc8 Kc8 31.h4+/-) 
    29...Nf8+= 30.Rf6 Kd8 31.Ba3 Nd7 32.Re6 Nf8 33.Rd2 g4 
       (33...Rc3 34.Rde2 Ne6 35.de6+/-) 
    34.Re7 Ke7 35.fg4 Rc3 36.Re2 Kf6 
       (36...Kd8 37.Bb4 Rh3 38.Kg2+/-) 
    37.h4+– Rh3 38.Re8 Ng6 39.Bd6! Rh2 
       (39...Nd6 40.Re6 Deflection (40.Re6 Decoy)) 
    40.Kg1 Rh4 41.Be5! 
       (41.Be5 Nfe5 42.de5 Kf7 43.Re6 Rg4 44.Kf2+–) 
    1–0
    
    
    
    Katalymov,Boris N – Jachkind
    Soviet Union, 1963
    1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0–0 5.e3 d5 6.Nc3 Bf5 
       (6...Be6 7.Nd5 Bd5 8.cd5 Qd5 9.Qc2 Nc6 10.b5 Nb4 11.Qc3 Qd6 12.e4 Nh5 
       pcmvr (2305)–sagaz (2305)/net–chess.com 2006; 
       6...c6 7.c5 Nbd7 8.d4 e5 9.Be2 e4 10.Nd2 Ne8 11.0–0 f5 12.Qb3 Ndf6 
       13.b5 Kh8 14.a4 Ng4 15.h3 Nh6 16.bc6 bc6 17.f4 ef3 18.Nf3 Nf7 19.Bd3 
       Qc7 20.Rab1 Rb8 21.Qc2 Klemens,L–Fekete,A/corr ICCF TT–6–02–F 2008/
       ½–½ (34)) 
    7.Qb3 dc4N 
       (7...c6 8.Be2 Re8 9.0–0 e5 10.b5 d4 11.Nb1 c5 12.Re1 Nbd7 13.d3 de3 
       14.fe3 e4 15.de4 Ne4 16.Bg7 Kg7 17.Nbd2 Ndf6 18.Ne4 Ne4 19.Rad1 Qc7 
       20.Nd2 Qe5 21.Bf3 Rad8 22.Ne4 Diekmann–Fellinger/Bezirksklasse 
       Mannheim 1993/½–½) 
    8.Bc4 Nbd7 9.Nh4 Ne5 10.Nf5 gf5 11.d4 Nc4 12.Qc4 e6 13.h3 c6 14.g4 fg4 
    15.hg4 Nd5 
       (15...Ng4 16.Rd1=) 
    16.Ne4 Qe7 17.g5 
       (17.a3!?+=) 
    17...Qb4= 
       (17...Nb4 18.Nf6 Bf6 19.gf6 Qf6 20.Rg1 Kh8 21.Qb4+–) 
    18.Qb4 Nb4 19.Ke2 Nd5 20.Rag1 Kh8 
       (20...a5!?=) 
    21.Rh2 f5 22.Nc5 Rfe8 23.Rgh1 
       (23.Nb7 Rab8 24.Rgh1 Rb7 25.Rh7 Kg8–+) 
    23...Rad8 24.Rh7 Kg8 25.f3 
       (25.Nb7 Rb8-/+) 
    25...b6 26.Nd3 Rf8 27.R1h4 a5 28.a3 b5 29.e4 fe4 30.fe4 Nb6 31.Rg7 
       (better is 31.Nc5!? Rde8 32.e5+/-) 
    31...Kg7= 32.d5 Kg6 33.Rh6 Kg5 34.Bc1 Kg4 35.Ne5 Kg3 36.Rg6 Kh4 
       (better is 36...Kh3=) 
    37.Bg5+– Kh5 38.Be3 Kh4 39.de6?? 
       (39.Bb6 ed5 40.Bd8 Rd8 41.Nc6 Re8+–) 
    39...Nc8? 
       (39...Na4 40.Nf3 Rf3 41.Kf3 Rf8 42.Bf4 Rf4 43.Kf4 Kh5 44.Kf5 Nb2 
       45.e7 Nc4 46.e8Q Ne3 47.Ke5 Ng4 48.Kf4 Nf2 49.Rc6 Kh4 50.Rh6) 
    40.Nf7?? 
       (better is 40.Bg5 Kh5 41.e7 Ne7 42.Be7+–) 
    40...Rde8 41.Kf3 Re6 42.Re6 Rf7 43.Bf4 Rh7 44.Rc6 Ne7 45.Rc1 Kh5 46.Rc5 
    Kg6 47.Rb5 Rh3 48.Bg3 Rh5 49.a4 Nc8 
       (49...Nc6 50.Ke3+–) 
    50.e5 Rh1 51.Ra5 Kf5 52.Ra6 Rf1 53.Kg2 Ra1 54.a5 Ne7 55.Ra8 
       (55.Kh3 Rh1 56.Bh2 Nd5+–) 
    55...Nd5 56.a6 Nc7 57.Rf8 Ke6 58.Rf6 Ke7 59.Bh4 Ke8 60.Rc6 Na6 61.e6 Ra2 
    62.Kf1 Ra1 63.Ke2 Ra2 64.Kd1 Ra1 65.Kd2 Ra2 66.Kc1 Ra1 67.Kb2 Ra2 68.Kb1 
       (68.Kb1 Kf8 69.e7 (69.Ka2?! Nb4 70.Kb3 Nc6+=) 69...Kf7 70.Rf6 (
       70.Ka2?! Nb4 71.Kb3 Nc6=) 70...Ke7 71.Ra6 Kf7 72.Ka2+–; 
       68.Ka2?! Nb4 69.Kb3 Nc6=) 
    1–0
    
    
    
    Katalymov,Boris N – Estrin,Yakov B
    Yalta (corr?), 1964
    1.b4 e5 2.Bb2 f6 3.e4 d5 4.f4 ef4 5.Qh5 g6 6.Qd5 Qd5 7.ed5 Bb4 8.Bc4 Nd7 
    9.Ne2+= Bd6 10.Nbc3 Kf7 11.0–0 Ne5 12.Bb3 
       (worse is 12.Rf4 g5 13.Rd4 Bc5-/+ 14.Bb3 Ke7 15.Ne4 Bd4 16.Nd4 a5+= –0.50 
      ; 
       12.Bb5 
         A) 12...f3 13.gf3 a6 (13...Bh3 14.Rf2 a6 15.f4 Nd7 16.Bd7 Bd7+= 
          –0.28) 14.f4 ab5 15.fe5 Be5 16.d4 Bd6+= –0.34;
         B) 12...a6 13.Ba4 f3 (13...b5 14.Bb3 f3 15.gf3 Bf5 16.Nd4 Ne7= 
          –0.16) 14.gf3 Bh3 15.Rf2 Nc4 16.Bc1 Nb6+= –0.53;
         C) 12...Bf5 
            C1) 13.d3 Ng4 (13...f3 14.gf3 a6 15.Ba4 Ne7 16.Rae1 Rad8+= 
             –0.41; 13...a6 14.Ba4 b5 15.Bb3 b4 16.Na4 f3+= –0.50 
            ) 14.Nd4 Ne7 15.Nf5 Nf5 16.Ne4 Be5-/+ –1.38;
            C2) 13.Nf4 Bc2 (13...g5 14.Ne6 Be6 15.de6 Ke6 16.d4 Ng4= 
             0.22; 13...Bc5 14.Kh1 Bc2 15.Rac1 Bf5 16.Ne4 Bb6= –0.13/
             7) 14.Rac1 Bf5 15.d4 Ng4 16.Rce1 a6-/+ –1.25;
            C3) 13.Rae1 f3 14.Nd4 Bc5 15.Ne4 Be4 16.Re4 a6-/+ –0.91;
            C4) 13.Kh1 Bc2 (13...a6 14.Ba4 Nc4 15.Bc1 Na5 16.d3 b5-/+ 
             –0.81) 14.Nf4 a6 15.Be2 Bf5 16.d4 Ng4-/+ –1.31;
            C5) 13.Ba4 f3 14.gf3 Nc4 15.Bc1 Nb6 16.Bb3 a5+= –0.56) 
    12...g5 
       (12...f3 13.gf3 Bh3 (13...Nh6 14.f4= Nd7 15.Ne4 Re8 16.Nd6 cd6+= 
       0.31; 13...Bf5 14.f4 Nd7 15.Nd4 Nh6 16.Ncb5 Nc5= 0.09; 
       13...Ne7 14.d4 Nd7 15.Nb5 Nf8 16.a4 Bd7+= 0.37; 13...a6 14.f4 
       Nd7 15.Ne4 Nc5 16.Ng5 Kg7= 0.22) 14.f4 Nd7 15.Rfe1 Nc5 16.Nb5 
       Ne7= 0.06) 
    13.Ne4 
       (13.Rae1 Bf5 (13...Ne7 14.Nd4 Re8 15.Ndb5 Kg7 16.Ne4 Rd8+= 0.56 
      ; 13...f3 14.gf3 Bh3 15.Rf2 Re8 16.Nb5 Kg7+= 0.56; 13...Kg7 
       14.Nd4 Ne7 15.Ne4 a5 16.a4 Re8+= 0.28; 13...Bg4= 14.Nd4 Ne7 
       15.Ne6 f3 16.Nb5 fg2+= 0.41) 14.Nd4 Ne7 15.Ncb5 Rhc8 16.a4 Bd7= 
       –0.16; 
       13.Nd4 Kg7 (13...Nh6 14.Rae1 Re8 15.Ndb5 f3 16.Ne4 Nf5+/- 0.87; 
       13...Ne7 14.Rae1 Re8 15.Ndb5 Kg7 16.Ne4 Rd8+= 0.56; 13...f3 
       14.gf3 Bh3 15.Rf2 Ke7 16.Re1 Re8+= 0.47; 13...Bd7 14.Ne4 Re8 
       15.Ne6 Ke7 16.Ng7 Rd8+= 0.44) 14.Ne4 Ne7 15.Ne6 Be6 16.de6 Rad8= 
       0.25; 
       13.Rf2 Bd7 (13...Ne7 14.Nb5 Kg7 15.Ned4 a5 16.a4 Ra6= –0.03; 
       13...Bg4 14.Nd4 Ke7 15.Re1 a5 16.a4 Re8= 0.00; 13...Kg7 14.Re1 
       Ne7 15.Ne4 Bf5 16.Nd6 cd6= –0.22; 13...f3 14.gf3 Ne7 15.Re1 Re8 
       16.Nb5 Kg6+= 0.28) 14.Re1 Re8 15.Rff1 Ne7 16.a3 Kg7+= –0.44 
      ; 
       13.Rab1 Nh6 (13...Kg7 14.Nd4 Ne7 15.Ne4 Rd8 16.Ne6 Be6= 0.12; 
       13...Bg4 14.Nd4 Ke7 15.Ne4 Re8 16.Rbe1 a6= 0.06; 13...f3 14.gf3 
       Ne7 15.Ne4 Bh3 16.Rf2 Rhg8= 0.03; 13...Ne7 14.Nb5 Kg7 15.Ned4 
       a5 16.a4 Rd8= 0.06) 14.Nb5 Rd8 15.Ned4 Ke7 16.Rbe1 Re8= –0.06/
       7; 
       13.a3 Ne7 (13...f3 14.gf3 Nh6 15.Nd4 Bh3 16.Rf2 g4= –0.19; 
       13...Ke7 14.Rae1 a6 15.Nd4 Bg4 16.Ne4 a5= 0.22; 13...Kg7 
       14.Rae1 Ne7 15.Nd4 Re8 16.Ne4 a6+= 0.28; 13...Bg4 14.Nd4 f3 
       15.gf3 Bc5 16.fg4 Bd4= 0.09) 14.Rae1 Re8 15.Nb5 Kf8 16.Ng3 fg3+= 
       –0.41) 
    13...Bg4 
       (13...Bf5 14.N4c3+= Ke8 15.Rae1 Ne7 16.Nd4 Bc5= –0.25; 
       13...Ne7 14.h4 Bg4 15.Nd4 Kg6 16.hg5 fg5= –0.09; 
       13...f3 14.gf3 Bh3 15.Rf2 Re8 16.Nd4 Nh6+= 0.28) 
    14.Nd4= Rd8 
       (14...a5 15.a4= Re8 16.Bc3 b6= 0.06; 
       14...Ke7 15.Rae1 h5 16.Nb5 Kd7+/- 0.97) 
    15.Nb5 
       (15.Rae1 Kg6+= 16.a3 Ne7+= 0.31; 
       15.Ne6 Be6 16.de6 Ke7= 0.09) 
    15...Kg6 
       (15...Be2 16.Nbd6 cd6 17.Rfe1+=) 
    16.Na7+= Be2 
       (16...f3+= 0.41) 
    17.Rfe1 
       (17.Rf2 f3 18.gf3 Nf3 19.Kh1 Ra8+=) 
    17...Ba6 
       (17...f3 18.Nd6 cd6 19.d4+=) 
    18.a4+= Nh6 19.Nb5 Nhf7 20.d4 Ng4 21.Nc5 Bc5 
       (21...Ne3 22.Ne6 Rd7 23.Bc1+/-) 
    22.dc5+/- c6 23.dc6 bc6 24.Bf7 Kf7 25.Nd6 Kg6 26.Bd4 Rhf8 27.Rab1 Bc4 
    28.Rb6 
       (28.a5 Bd5+/-) 
    28...Bd5 
       (28...Ra8 29.h3 (29.Nc4?! Ra4 30.Rc6 Rc4=) 29...Nh6 30.Ra1+/- (
       30.Rc6?! Ra4 31.Re8 Re8 32.Ne8 Ng8+=)) 
    29.a5 Nh6 
       (29...f5 30.Re7 Nf6 31.Rbb7+–) 
    30.a6 
       (30.Ba1 Nf5 31.c4 Nd6 32.cd6 Bc4 33.Rc6 Bd5+–) 
    30...Nf5 
       (30...f3 31.gf3 Nf5 32.Nf5 Kf5 33.Kf2+/-) 
    31.Bf2+– g4 
       (31...Nd6 32.cd6 f3 33.gf3 Bf3 34.a7+–) 
    32.c4 g3 
       (32...Bf7 33.Rc6 (33.Nf7?! Rf7 34.g3 fg3 35.hg3 Rc7+=) 33...Ra8 
       34.Ra1+–) 
    33.hg3 
       (33.cd5 gf2 34.Kf2 cd5+–) 
    33...fg3 34.cd5 gf2 35.Kf2 cd5 36.Nf5 
       (36.Rd1 d4+–) 
    36...Kf5 37.c6 Ra8 38.c7 Rfc8 
       (38...d4 39.Re7 h5 40.Rc6+–) 
    39.Rc1 
       (39.Re7 h5+–) 
    39...Ke5 
       (39...h5 40.Rcc6 Ke4 41.Rb7+–) 
    40.Ke3 
       (40.Rb7 Kd6 41.a7 Kd7+–) 
    40...f5 41.Kd3 Rg8 
       (41...f4 42.Re1 Kf5 43.Re7+–) 
    42.Re1 Kf4 43.Kd4 Rg2 
       (43...Rgc8 44.Rc6 Ra7+–) 
    44.Rf1 Kg5 45.Rc1 
       (better is 45.Rb8 Rc2 46.Ra8 Rc7+–) 
    45...Rc8 46.Rb8 Rd2 47.Ke5 
       (47.Ke5 Re2 48.Kd6 Rc7 49.Rc7+–) 
    1–0
    
    
    
    Katalymov,Boris N – Suetin,Alexey S
    Kislovodsk, 1967
     1.b4 e5 2.Bb2 e4 3.e3 Nf6 4.b5 b6 5.f4 
       (5.g3 Bb7 6.Bg2 Bc5 7.Ne2 0–0 8.Nf4 d5 9.0–0 Nbd7 10.d4 ed3 11.Qd3 
       Be7 12.Nd5 Nd5 13.Bd5 Bd5 14.Qd5 Qe8 15.Qf3 Nf6 16.Nd2 Qb5 17.Rab1 Qd7 
       18.Ne4 Ne4 19.Qe4 Bd6 stoker–amaj7/Live Game Caissa's Web 2004/0–1 
       (38)) 
    5...Bb7N 
       (5...d5 6.d3 Be7 7.de4 de4 8.Nc3 Bb7 9.Bc4 0–0 10.Nge2 Nbd7 11.0–0 
       Nc5 12.Ng3 Qd1 13.Rad1 Rad8 14.Ba3 Rd1 15.Rd1 Rd8 16.Bb2 Rd1 17.Nd1 g6 
       18.Nf2 c6 19.bc6 Bc6 20.h3 valpa–Winkler/playchess.de 2002/0–1) 
    6.g4 h6 7.h4 d5 8.Nh3 Nbd7 9.g5 Ng8 10.a4 hg5 11.hg5 Nc5 12.Nf2 Rh1 
    13.Nh1 Qd7 14.Qh5 g6 
       (14...Ne7 15.Bh3 Qd6 16.Qh8+=) 
    15.Qh8+= Ne7 16.Bg7 0–0–0 17.Bh3 Ne6 18.Bf8 Nf5 Black intends d4 
    19.Bf5 gf5 20.Nc3 
       (better is 20.Qf6 Rf8 21.Qf5+/-) 
    20...d4+= 21.Ne2 de3 22.de3 Qd2 23.Kf2 Rf8 
       (23...Nf4 24.Nhg3 (worse is 24.ef4 e3 25.Kg3 Qe2 26.Kh3 Qg2 27.Kh4 Qh2) 
       24...Ne6 25.Qc3 Qc3 26.Nc3 Rf8 27.Nf5+=) 
    24.Qc3= Qc3 25.Nc3 Rh8 26.Ng3 
       (26.Rc1 c6=) 
    26...Rh2+= 27.Kf1 
       (27.Ke1!?+=) 
    27...Rc2-/+ 28.Nce2 Bd5 29.Rc1 
       (better is 29.Nf5!? Bc4 30.Nfg3+=) 
    29...Rc1–+ 30.Nc1 Bc4 31.Ke1 Nc5 32.Nf5 Na4 33.Ng3 
       (33.Nh6!?-/+) 
    33...Nc5–+ 
       (33...Bb5?! 34.Ne4 Bc6 35.Nd2-/+) 
    34.Kd2 Kd7 35.f5 Bb5 36.Kc3 a5 37.Nh5 
       (37.Nb3 Nb3 38.Kb3 Bd3–+) 
    37...Ke7 38.Nf4 White prepares the advance g6 38...a4 39.f6 
       (39.Kd4 c6–+) 
    39...Kd6 40.Na2 Ne6 41.g6 
       (41.Ne6 Ke6 (worse is 41...fe6 42.g6 Be8 43.f7 Bf7 44.gf7=) 42.Kb4 Bd7–+) 
    Nf4 
       (41...Nf4 42.ef4 fg6–+) 
    0–1
    
    
    
    Katalymov,Boris N – Kapengut,Albert Z
    Leningrad, 1969
    1.b4 c6 2.c4 e5 3.Bb2 f6 4.a3 d5 5.e3 Be6 6.c5 Nd7 7.d4 e4 8.Nc3 f5 
       (8...Ne7 
         A) 9.Rc1 
            A1) 9...Rb8 10.Nge2 (10.Qb3 Bf5 11.b5 b6 12.bc6 Nc6 13.cb6= 
             0.06) 10...Ng6 11.b5 Qa5 12.h4 Bg4 13.Qd2+= 0.31;
            A2) 9...Ng6 10.b5 (10.Qb3 f5 11.b5 Be7 12.Nh3 0–0 13.Rb1= 
             –0.03) 10...Be7 11.h4 0–0 12.h5 Nh8 13.Nh3= 0.13;
            A3) 9...a6 10.Nge2 Ng6 11.Ng3 f5 12.Qb3 Qf6 13.Qa4= –0.09
             ;
         B) 9.Qb3 
            B1) 9...Bf5 10.Nge2 (10.b5 Qc7 11.Nge2 b6 12.bc6 Qc6 13.Ng3= 
             0.22) 10...b6 11.cb6 Qb6 12.Ng3 Bg6 13.Be2+= 0.34;
            B2) 9...Bg4 10.Be2 (10.Nge2 b6 11.cb6 Nb6 12.h3 Bc8 13.Ng3= 
             0.09; 10.Rb1 Rb8 11.b5 Qa5 12.Bc1 Qc7 13.Qa4+= 0.38 
            ) 10...h5 11.b5 Be2 12.Nge2 g6 13.0–0+= 0.56;
            B3) 9...Bf7 10.Rb1 (10.Be2 b6 11.Nh3 bc5 12.bc5 Rb8 13.Qc2= 
             0.16; 10.Nge2 b6 11.cb6 ab6 12.Rc1 Rc8 13.Nf4= 0.13
             ; 10.Nh3 Ng6 11.b5 Be7 12.Qd1 Be6 13.Qh5= –0.03) 
             10...b6 11.Be2 Qb8 12.Qd1 a5 13.Nh3= 0.19;
            B4) 9...Kf7 10.f3 Nf5 11.Kf2 Nh6 12.Re1 Be7 13.Qc2= 0.09;
         C) 9.Rb1 b6 10.Ba6 bc5 11.bc5 Qa5 12.Qa4 Qa4 13.Na4= 0.25/11;
         D) 9.f3 f5 10.b5 b6 11.Nge2 bc5 12.Nf4 Bf7 13.dc5= –0.25;
         E) 9.b5 b6 10.Nge2 (10.Nh3 bc5 11.Nf4 Bf7 12.bc6 Nc6 13.dc5= 
          –0.22) 10...bc5 11.Nf4 Bf7 12.bc6 Nc6 13.dc5= –0.22;
         F) 9.Ra2 Ng6 10.Qb3 (10.b5 Qa5 11.Qd2 Qc7 12.bc6 bc6 13.h4= 
          –0.09/11) 10...f5 11.b5 Qc8 12.Nh3 Be7 13.Be2= 0.00;
         G) 9.Nge2 Ng6 10.Rb1 (10.b5 cb5 11.Qb3 b6 12.cb6 a6 13.b7= 0.00;
          10.Qa4 a6 11.h4 h5 12.Rb1 f5 13.g3= –0.09) 10...Be7 
          11.h4 Rc8 12.h5 Ngf8 13.Nf4+= 0.44) 
    9.f4 
       (9.Nh3 
         A) 9...Bf7 10.Be2 Be7 11.0–0 Ngf6 12.Ng5 0–0 13.b5+= 0.38;
         B) 9...Be7 10.Be2 (10.Nf4 Bf7 11.Be2 Ngf6 12.0–0 0–0 13.Rb1= 
          0.25) 10...Bf7 11.0–0 Ngf6 12.b5 cb5 13.Bb5+= 0.47;
         C) 9...Ne7+= 10.Nf4 (10.b5 Ng6 11.Qa4 Qc7 12.Na2 Be7 13.Nb4= 
          0.25) 10...Bf7 11.Be2 g5 12.Nh5 Qc7 13.b5+= 0.38;
         D) 9...Nh6 10.b5 (10.Nf4 Bf7 11.Be2 g5 12.Nh5 Qc7 13.h4+= 0.38
          ) 10...Ng4 11.Be2 Qh4 12.0–0 Be7 13.Qa4+/- 0.78;
         E) 9...Ngf6 10.Be2 Be7 11.0–0 0–0 12.b5 Qc7 13.Nf4+= 0.31) 
    9...ef3 
       (9...Ngf6 10.b5 Be7 11.Rb1 cb5 12.Bb5 a6 13.Ba4= –0.09; 
       9...Be7 10.Rb1 (10.b5 Ngf6 11.Rb1 Ng4 12.Qd2 0–0 13.bc6= 0.00; 
       10.Qh5 g6 11.Qe2 Ngf6 12.Nh3 Ng4 13.Rb1= –0.19) 10...Ngf6 11.b5 
       0–0 12.bc6 bc6 13.Nh3= 0.00/11; 
       9...Nh6 10.b5 Ng4 11.Bc1 Be7 12.bc6 bc6 13.Nge2+= –0.37; 
       9...Ne7 10.Nh3 Ng6 11.b5 Be7 12.Qa4 cb5 13.Qb5= 0.09) 
    10.Nf3 g6 
       (10...Ngf6 11.Be2 Ne4 12.0–0 Be7 13.b5= 0.16) 
    11.Qb3 
       (11.Bd3 Bh6 12.Qe2 Ngf6 13.0–0= 0.22) 
    11...Ngf6 12.0–0–0 
       (12.Be2!?= Bh6 13.Nd1= 0.16) 
    12...Bh6 
       (12...Ne4 13.Ne4+= –0.56) 
    13.Kb1 
       (13.Re1+= –0.62) 
    13...0–0 14.Bc1 Ne4 15.Ne4 fe4 16.Nd2 Qg5 17.Re1 Nf6 18.Ka1 b5 19.cb6 ab6 
    20.b5 c5 21.dc5 bc5 22.Bb2 Bg7 23.b6 c4 24.Qb5 Bd7 25.Qb4 Ng4 26.Ka2 
       (better is 26.b7 Rab8 27.Nc4 dc4 28.Qc4 Kh8 29.Bg7 Kg7 30.Qe4–+) 
    26...Bb2 
       (26...Ne3?! 27.Bg7 Rf1 28.Nf1+=) 
    27.Qb2 Be6 28.Qc3 Rf2 29.h3 
       (29.Ka1–+) 
    29...d4! 30.b7 
       (30.Qd4 c3; 
       30.ed4 Qd2) 
    30...Rb8 
       (30...dc3 31.ba8Q Kg7 
         A) 32.hg4 cd2 33.Rd1 c3 34.Ka1 c2 (34...Qe3 35.Be2 Bg8 36.Qb7 Bf7 
          37.Qb8 Qe2 38.Rh7 Kf6 39.Qd8 Ke6 40.Qb6 Kd5 41.Qb7 Kd4 42.Qb6 Kd3 
          43.Qb5 Ke3 44.Qc5 Kd3 45.Qb5 Kd4 46.Qb6 Ke5 47.Qc7 Ke6 48.Qb6 Kd7 
          49.Qb7 Kd6 50.Qb4 Kc6 51.Qa4 Qb5 52.Qe4 Kb6 53.Qd4 Qc5 54.Qd8 Kc6 
          55.Qa8 Kd6 56.Qb8 Kd5 57.Rhh1–+) 35.Qa7 Bf7 36.Qd4 Qf6 37.Qf6 
          Kf6–+;
         B) 32.Qa7 Kf8 33.Qb8 Kg7 34.Qb7 (34.hg4 cd2 35.Rd1 c3 36.Kb1 Qd5 
          37.Qc7 Kg8+=) 34...Bf7 35.hg4+–) 
    31.ed4 Qd2 
       (31...Rd2?! 32.Ka1 Nf6 33.Bc4 Bc4 34.Qc4 Qd5 35.Qd5 Nd5 36.Rd1 Rg2 
       37.Rb1–+) 
    32.Qd2 Rd2 33.Ka1 Nf2 
       (33...Nf2 34.Rc1 Nh1–+) 
    0–1
    
    
    
    Katalymov,Boris N – Mnatsakanian,Eduard A
    Spartak–ch Sochi, 1969
    1.b4 d5 2.Bb2 f6 3.e4 de4 4.Bc4 e6 
       (4...e5 5.a3-/+) 
    5.Nh3 
       (5.a3 Nc6+=) 
    5...Bb4 6.Qh5 Kf8 7.Nf4 Qe8 8.Qh3 e6 draws heavy fire 8...e5 
       (8...Ne7 9.Ne6 Be6 10.Be6+=) 
    9.Ng6= hg6 A pinning theme 
       (9...Qg6 Deflection from c8 10.Qc8) 
    10.Qh8+= A pinning theme 10...Be6 11.Be2 
       (11.Be6 Qe6 12.0–0 Qg4+=) 
    11...Qc6= 12.Nc3 Nd7 
       (12...e3 13.fe3 Qg2 14.Rf1=) 
    13.0–0 Nc5 14.a3 
       (14.Rfb1 Rd8 15.Rd1 Kf7+=) 
    14...Ba5 
       (14...Bc3 15.Bc3 Na4 16.Rab1 Nc3 17.dc3=) 
    15.a4 
       (15.Rab1 Rd8 16.Rfd1 a6=) 
    15...Kf7 
       (15...Bc3 16.Bc3 (worse is 16.dc3 Na4 17.Rab1 Nb2 18.Rb2 b6-/+) 16...Na4 
       17.Ra3=) 
    16.Bb5 Qd6 17.Ba3 
       (17.Rfd1 a6 18.Ba3 Qd4=) 
    17...f5 
       (17...Qd2 18.Nb1 Qd4 19.c3-/+) 
    18.Qh3 
       (18.Rfd1 Rd8=) 
    18...Nf6 
       (18...Qd2!? 19.Nb1 Qd4-/+ (19...Qc2?! 20.Rc1 Qb3 21.Bc5 Qh3 22.gh3=)) 
    19.Qe3 
       (19.Rfd1 a6 20.Be2 Qc6=) 
    19...b6 20.Rfd1 a6 21.Bf1 f4 
       (21...Ng4 22.Qe1+=) 
    22.Qe1= Qc6 23.Bc5 Bc3 
       (worse is 23...bc5 24.Be2=; 
       worse is 23...Qc5 24.Ne4 Ne4 25.Qe4+=) 
    24.dc3 Qc5 25.c4 
       (25.Be2 e3 26.f3 Nd5-/+) 
    25...Rh8 
       (25...e3 26.fe3 Ng4 27.Rd2–+) 
    26.a5 
       (26.h3 f3-/+) 
    26...Ng4 
       (26...e3 27.fe3 Ng4 28.ab6 cb6 29.Ra6 Ne3 30.Ra7 Kf6 31.Kh1–+) 
    27.ab6 
       (27.Be2 e3 28.Bg4 Bg4-/+) 
    27...cb6 
       (27...e3!? 28.fe3 cb6 29.Ra6 Ne3 30.Ra7 Kf6 31.Kh1–+) 
    28.Be2-/+ f3 
       (28...Nh2 29.Ra6 Qe7 (29...Bc4 30.Bc4 Qc4 31.Rb6+–) 30.Rb6 Nf3 
       31.Bf3 Qh4–+) 
    29.gf3= Qe7 30.Bf1 ef3 31.Rd3? 
       (31.Qe4 Nh2 32.Qe5 Nf1 33.Qf4 Kg8 34.Qf3 Rh4–+) 
    31...Nh2?? 
       (better is 31...Qf6 32.Qe4 Nh2–+) 
    32.Qe5+= Rh5 
       (worse is 32...Nf1 33.Rf3 Kg8 34.Ra6+/-) 
    33.Qf4 Kg8 
       (33...Bf5 34.Re3 Qf6 35.Ra6 Nf1 36.Rf3 Nh2–+) 
    34.Ra6= Kh7 35.Ra8 
       (worse is 35.Rb6 Nf1 36.Rf3 Bd5–+) 
    35...Ng4 
       (35...Nf1 36.Rdd8 Rg5 37.Kh1 Ng3 38.fg3 Bc8–+) 
    36.Rf3+/- 
       (36.Qf3?! Qh4 37.Bg2 Qh2 38.Kf1 Qe5=) 
    36...Ne5 
       (36...Nh2 37.Re3 Nf1 38.Qb8+/- (38.Kf1 Qb4 39.Re6 Qb1 40.Ke2 Qc2 
       41.Kf3 Qd1 42.Kg3 Qh1-/+)) 
    37.Rg3 
       (37.Re3 Bd7 38.Bg2 Qd6+–) 
    37...Qb7 Do you see the mate threat? 38.Bg2 Qd7 
       (38...Qe7 39.Re3 Qd6 40.Rd3+–) 
    39.Ra1 
       (39.Qf8 Qd1 40.Bf1 g5 41.Qh8 Kg6 42.Qe8 Kf5 43.Qf8 Bf7 44.Qc8 Kg6+/-) 
    39...Nc4+/- 40.Re1 Bf5?? 
       (better is 40...b5+/-) 
    41.Qc4+– 
       (41.Qc4 g5 42.Be4+–) 
    1–0
    
    
    
    Katalymov,Boris N – Muratov,Vladimir A
    Kazachstan, 1969
    1.b4 d5 2.Bb2 Nf6 3.e3 Bf5 4.Nf3 e6 5.c4 c6 6.b5 Be7 7.Nc3 0–0 8.a4 h6 
       (8...a6 9.Be2+=) 
    9.Be2 Bh7 10.0–0 Nbd7 11.d4 Qb8 12.Qb3 Rc8 13.Rfc1 a5 14.Ba3 Ba3 15.Qa3 
    dc4 16.Bc4 c5 17.d5 e5 18.Nd2 e4 19.Qa2 Ng4 20.Nf1 Qd6 21.Be2 Nge5 
       (21...Ngf6 22.Rd1=) 
    22.Nd2 Nf6 23.Qc2 e4 seems the pivot of the position 23...c4 24.Nde4 
    Ne4 25.Ne4 Qd5 26.Nc3 Qc5 
       (26...Qd6 27.Rd1 Bd3 28.Qc1=) 
    27.e4 Rd8 28.Rd1 Bg6 29.Rac1 Rac8 30.h4 f6 31.Nd5 Rd5 32.Rd5 Qd5 33.ed5 
    A pinning theme 33...Bc2 34.Rc2 g5 35.g3 c3 36.f4 
       (36.d6 Kf7=) 
    36...Nf7 
       (36...gf4!? 37.gf4 Ng6+=) 
    37.Kf2 Kf8 
       (37...gh4 38.gh4 Nd6 39.Ke3+=) 
    38.Ke3 
       (38.fg5 fg5 39.Ke3+=) 
    38...Ke7? 
       (better is 38...gh4!? 39.gh4 Nd6=) 
    39.Kd4 Nd6 
       (39...gh4 40.gh4 Nd6 41.Bd3+/- (41.Rc3?! Nf5 42.Kd3 Rc3 43.Kc3 Nh4=)) 
    40.Bd3 b6 41.fg5 fg5 42.Re2 Kd7 43.hg5 hg5 44.Rc2 Ke7 45.Rc3 Rc3 46.Kc3 
    Nb7 47.Kd4 Nc5 48.Bc2 Kd6 49.g4 Nd7 50.Ke4 Nf6 51.Kf5 Nd5 52.Kg5 Ne3 
    53.Bb3 Kc5 
       (better is 53...Ke5+–) 
    54.Kf4 Ng2 55.Kf3 Nh4 56.Ke4 Kb4 57.Bd1 Kc3 
       (57...Kc5 58.Ke5+–) 
    58.g5 
       (better is 58.Kd5 Kb4 59.g5 Ng6+–) 
    58...Kd2 
       (58...Kc4+–) 
    59.Bh5 Kc3 60.g6 Ng6 61.Bg6 Kb4 
       (61...Kc4 62.Ke5+–) 
    62.Kd5 
       (62.Kd5 Ka4 63.Kc6+–) 
    1–0
    
    
    
    Katalymov,Boris N – Kupreichik,Viktor D
    Minsk, 1971
    1.b4 c5 
       (1...e5!? 2.Bb2 Nf6+=) 
    2.bc5= e5 3.e3 Bc5 4.d4 ed4 5.ed4 Be7 6.Bd3 d5 7.Nf3 Nc6 8.0–0 Bg4 9.c3 
    Nf6 10.h3 Bh5 11.Qb3 
       (11.Bg5 0–0=) 
    11...Qc7 
       (11...Bf3 12.Qb7 Rc8 13.gf3=) 
    12.Ne5 0–0 13.f4 Bg6 
       (13...Na5 14.Qc2 Ne4 15.Be4 de4 16.Qe4+=) 
    14.f5+= Ne5 15.de5 Bc5 16.Kh2 Nh5 17.Qd5 
       (17.fg6?? Qe5 18.Bf4 Nf4 19.gh7 Kh8–+) 
    17...Rad8 18.Qe4 Rfe8 19.fg6 hg6 
       (19...Re5 20.Bf4 Nf4 21.gf7 Kf8 22.Qh7 Rh5 23.Qg8 Ke7 24.f8Q Rf8 
       25.Qg7 Kd8 26.Qc7 Kc7=) 
    20.Rf7 
       (20.Bc2 Re5 21.Bf4 Nf4 22.Qf4 Bd6+/-) 
    20...Qf7 
       (20...Kf7 21.Qg6 Kf8 22.Qf5 Qf7 23.Qf7 Kf7 24.Bc4 Kf8+=) 
    21.Bc4+/- Re6 22.Be6 
       (22.Qf3!? b5 
         A) 23.Be6 Qe6 24.Bf4 Rf8-/+ (24...Nf4?! 25.Qf4 Rd1 26.Qe4 Bg1 
          27.Kg3–+);
         B) 23.Bb3 Qf3 24.Be6 Qf7 25.Bf7 Kf7 26.Nd2+/-) 
    22...Qe6+= 23.Nd2 
       (23.Qb7?? Qe5 24.Bf4 Qf4 25.g3 Qg3 26.Kh1 Qh3) 
    23...Qb6? 
       (23...Rd5 24.Nf3 Bd6 25.Qe3 Be5 26.Ne5 Qe5 27.Qe5 Re5 28.c4=) 
    24.Nf3 
       (24.Qc4!? Kh8 25.Ne4 Bg1 26.Kh1+–) 
    24...Rd1+/- 25.Be3?? 
       (better is 25.Qc4 Kh7 26.h4+/-) 
    25...Be3–+ 
       (25...Ra1?! 26.Qd5 Kh7 27.Bc5= (worse is 27.Qc5 Qc5 28.Bc5 Ra2-/+)) 
    26.Qc4 
       (26.Rd1 Bf4 27.Qf4 Nf4–+) 
    26...Kh7 
       (26...Kf8!? 27.Rd1 Bf4 28.Qf4 Nf4 29.Rd4–+) 
    27.Rd1 Bf4 28.Qf4 Nf4 29.Ng5 Kh6 
       (better is 29...Kg8!? 30.c4–+) 
    30.Nf7 Kh5 31.Rd4?? 
       (31.Rd8 g5 32.g4 Kg6 33.Rd6 Kf7 34.Rb6 ab6 35.Kg3–+) 
    g5 
       (31...g5 32.Rd2 Qe3–+) 
    0–1
    
    
    
    Katalymov,Boris N – Litvinov,Viktor
    Minsk, 1971
    1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 Nbd7 6.c5 Be7 7.Nd4 Bb1 8.Rb1 c6 
    9.g4 
       (9.Be2 a5 10.a3 0–0=) 
    9...e5 
       (9...0–0 10.g5 Ne8 11.h4+=) 
    10.Nf5 g6 
       (10...0–0 11.d4 e4 12.b5=) 
    11.Ng3 
       (11.Ne7 Qe7 12.d4 Ne4=) 
    11...0–0 
       (11...h6 12.d4 e4 13.Be2=) 
    12.h4 
       (12.d4 e4=) 
    12...Ne8 
       (12...a5 13.a3=) 
    13.g5 
       (13.h5 a5 14.a3 ab4 15.ab4 Bh4=) 
    13...f5 
       (13...a5 14.a3=) 
    14.f4 
       (14.gf6 Nef6 (worse is 14...Rf6 15.Bh3+/-) 15.h5 g5=) 
    14...Qc7 15.Qf3 Rf7? 
       (better is 15...a5!? 16.a3 ab4 17.ab4 Ra4+=) 
    16.h5+/- Bf8 17.Ne2 b6 
       (17...Bg7!?+/-) 
    18.hg6 
       (18.Qh3 Rg7+–) 
    18...hg6 Opening the h–file gets White a lot of play 19.Qh3 The 
    mate threat is Qh8 19...Rg7 20.fe5 Ne5 21.Nf4 bc5 22.Qh8 
       (22.Ne6 Qe7 23.Qh8 Kf7 24.Nf8 Nf3 25.Kf2 Nd2 26.Ng6 Ne4 27.Ke1 Qg5 
       28.Bg7 Qe3 29.Be2 Qd2 30.Kf1 Ng3 31.Kg2 Qe2 32.Kg3 Ng7–+) 
    22...Kf7 23.Qf8! Kf8 Deflection from e6 24.Ne6 A double attack 
    24...Kg8 25.Nc7 
       (25.Ng7?? Ng7 (worse is 25...Kg7 26.bc5 Kg8 27.Rh3–+) 26.bc5 Rb8–+) 
    25...Nf3 26.Ke2 Rc7 27.Rh8 
       (27.Kf3 cb4 28.Rh8 Kf7+–) 
    27...Kf7 28.Kf3 cb4 29.Be5 
       (29.Rc1!? Rac8 30.Ba6 Rd8+–) 
    29...Re7 30.Rh7 
       (30.Rh7 Ke6 31.Re7 Ke7 32.Rc1+–) 
    1–0
    
    
    
    Katalymov,Boris N (2390) – Grigorian,Karen Ashotovich (2470)
    URS–chT Moscow, 1972
    1.b4 e5 2.Bb2 d6 3.c4 
       (3.e3 Nf6=) 
    3...a5 
       (3...Nf6 4.e3+=) 
    4.b5= b6 
       (4...Nf6 5.d4 ed4 6.Bd4=) 
    5.Nc3 Bb7 6.Qc2 Nf6 7.e4 g6 
       (7...c6 8.Nf3=) 
    8.Nge2 Bg7 9.g3 
       (9.d4 Nbd7=) 
    9...0–0 
       (9...Ne4 10.Ne4 f5 11.Bg2 Be4 12.Be4 fe4 13.Qe4+=) 
    10.Bg2+= Nbd7 11.0–0 Nh5 12.Nd5 Nc5 
       (12...c6 13.bc6 Bc6 14.f4+=) 
    13.f4+/- c6 14.bc6 Bc6 15.d4 Na4 16.Ba3 ed4 17.Rad1 
       (17.e5 d3 18.Qd3 Nc5 19.Bc5 bc5+/-) 
    17...b5 
       (17...Nc5 18.Nd4 Bd5 19.cd5 Bd4 20.Rd4+=) 
    18.Nd4 Bd5 
       (18...Bd4 19.Rd4 b4 20.Bc1+/-) 
    19.Nb5+/- 
       (19.cd5?! Qb6 20.e5 Rac8+=; 
       worse is 19.ed5 Qb6 20.Qf2 bc4+=) 
    19...Qb6 20.Kh1 Nc3 21.Nc3 
       (21.Rd5?! Nd5 22.ed5 Rfd8=) 
    21...Bc4 22.Nd5 Bd5 23.Rd5 
       (23.ed5?! Rfc8 24.Qa4 Rab8=) 
    23...Rac8 
       (23...Rfc8 24.Qa4+/-) 
    24.Qd2 
       (24.Qb3 Qb3 25.ab3 Rfe8 26.Ra5 Nf6+–) 
    24...Rc3 
       (24...Bc3 25.Rd6 Bd2 26.Rb6+–) 
    25.Rd6+– Qb8 26.Rd3 
       (26.Bb2 Rc2 27.Qc2 Qd6+–) 
    26...Rd3+/- 27.Qd3 Rd8 28.Qc2 Nf6 29.e5 Ne8 30.Rb1 Qa7 31.Qc5 
       (31.Bc5 Rc8 32.Rb5 Qd7+–) 
    31...Qa6 32.Qe7 Qd3 33.Rf1 Rb8 34.f5! White intends e6 34...gf5 35.e6 
    fe6 36.Qe6 Kh8 37.Qf5?? 
       (better is 37.Bc5+/-) 
    37...Qa3–+ 38.Be4 
       (38.Qe6 Nd6–+) 
    38...Nf6 39.Bb1 Qd6 40.Qa5?? 
       (40.Bd3–+) 
    40...Qc6 41.Kg1 Ng4 42.Qd2 Qc5 
       (better is 42...Qc4!? 43.Re1 Bd4 44.Kg2–+) 
    43.Kh1 Ne3 
       (43...Bd4 44.Qe2 Ne3 45.Be4–+) 
    44.Re1?? 
       (better is 44.Rc1 Rf8 45.Be4–+ (45.Rc5?? Rf1)) 
    44...Qc6 
       (better is 44...Bd4 45.Be4 Rb2–+) 
    45.Kg1 Qb6 46.Qd3?? 
       (46.Kh1 Qb7 47.Kg1–+) 
    Nc2 
       (46...Nc2 47.Kh1 Qb7 48.Qe4 Ne1 49.Qb7 Rb7–+) 
    0–1
    
    
    
    Katalymov,Boris N – Zaitsev,Igor A
    URS–ch sf Odessa, 1972
    1.b4 e5 2.Bb2 Qe7 3.c4 
       (3.a3 a5=) 
    3...g6 
       (3...Qb4!? 4.Be5 d6+=) 
    4.b5 
       (4.Nf3 Bg7=) 
    4...Bg7 5.e3 Nf6 6.Nc3 c6 
       (6...0–0 7.e4=) 
    7.Nf3 0–0 8.d4 e4 9.Nd2 d5 10.a4 Rd8 11.a5 
       (11.bc6 bc6 12.Ba3 Qe6=) 
    11...Nbd7 
       (11...cb5 12.cb5 Bg4 13.Qb3=) 
    12.a6 
       (12.Ba3 Qe6+=) 
    12...c5 13.Ba3 Qe8? 
       (13...ba6!? 14.cd5 Bb7 15.ba6 Bd5+=) 
    14.dc5 
       (14.ab7 Bb7 15.dc5+/- (15.Bc5?! Nc5 16.dc5 Qe5+=)) 
    14...d4? 
       (better is 14...ba6 15.cd5 Qe5+/-) 
    15.ab7+– Bb7 16.ed4 e3 17.Nb3 ef2 18.Kf2 Ne5 Do you see the mate threat?
     19.Qe2 Nfg4 
       (19...Neg4 20.Kg1 Ne4+–) 
    20.Kg1 Rd4 21.Nd4 Rd8 
       (21...Nc4 22.Nc2 Bc3 23.Qc4 Ba1 24.Qg4 Rd8+–) 
    22.Nc2 Bf3 23.Qe1 
       (23.gf3 Rd2 24.fg4 Re2 25.Ne2 Nc4+–) 
    23...Bh6 24.Nd5 
       (24.gf3 Nf3 25.Kg2 Ne1 26.Re1 Rd2 27.Re2 Rc2 28.Rc2 Ne3 29.Kf3 Nc2–+ 
      ) 
    24...Bd5 25.cd5 Rd5 26.h3 Ne3 27.Ne3 
       (27.Qe3 Be3) 
    27...Nf3 Theme: Double Attack 28.Kf2 
       (28.gf3 Be3) 
    28...Ne1 29.Nd5 
       (29.Re1 Rd2 30.Kg3 Qe5 31.Kh4 Qg5) 
    29...Qe5 30.Re1 Qf5 
       (30...Qd5 31.Re8 Kg7 32.Bb2 f6 33.g3 Qh1 34.Re7 Kf8 35.Re2=) 
    31.Kg1 Qd5 The mate threat is Qd4 32.Kh2 
       (better is 32.Re8 Kg7 33.Re2 Bf4+–) 
    32...Qb3?? 
       (32...Bf4 33.g3 Qa2 34.Be2 Bg3 35.Kg3 Qa3 36.Kf4 Qc5+–) 
    33.Bc1 Bc1 34.Rc1 Qe3 35.Rd1 
       (better is 35.Rc2 Qe5 36.g3 h5+–) 
    35...Qc5 36.g3 h5 37.h4 g5 38.hg5 h4 39.Rd3 
       (39.gh4 Qe5 40.Kh3 Qe3 41.Kg2 Qe4 42.Kf2 Qf4 43.Ke2 Qe4 44.Kf2 Qf4 
       45.Ke1 Qe4 46.Kf2=) 
    39...Qc2 
       (39...Qg5 40.Kh3 Qf5 41.Kg2 Qe4 42.Rf3 Qc2 43.Kh3+–) 
    40.Kh3 hg3 41.Rg3 
       (better is 41.Kg3!? Qc7 42.Kg2 Qf4+–) 
    41...Qh7 42.Kg2 Qe4 
       (42...Qc2 43.Kg1 Qc5 44.Kh2 Qf2 45.Bg2+–) 
    1–0
    
    
    
    Katalymov,Boris N – Archukhin
    Leningrad, 1975
    1.b4 c6 2.c4 d5 3.cd5 cd5 4.Bb2 Nf6 5.e3 
       (5.Nf3 e6 6.a3 a5=) 
    5...Bf5 
       (5...e6 6.a3+=) 
    6.Nf3= Nbd7 7.Be2 
       (7.Bf6 ef6 8.Qb3 Be6=) 
    7...e6 8.a3 Bd6 
       (8...a5 9.ba5 Qa5 10.0–0=) 
    9.Nh4 
       (9.Nc3 a5=) 
    9...Bg6 
       (9...Bb1 10.Rb1 a5 11.ba5 Qa5 12.Nf3+=) 
    10.Nc3 Rc8 
       (10...a6 11.Rc1=) 
    11.Rc1 0–0 12.Ng6 fg6 13.0–0 Qe7 
       (13...Qe7 14.f4 a5 15.ba5 Ba3+=; 
       13...Ne5 14.Nb5 Rc1 15.Qc1+=) 
    +=
    
    
    
    Katalymov,Boris N – Berenstein
    SU, 1978
    1.b4 e5+= 2.Bb2 f6 3.e4 d5 4.ed5= Bb4 5.Bc4 Bf5 6.f4 ef4 7.Qf3? 
       (7.Ne2 Qe7+=) 
    7...Qe7 
       (7...Bc2 8.Ne2 Qe7 9.Qf4-/+) 
    8.Ne2 
       (8.Kd1 Be4 9.Qh5 g6-/+) 
    8...Bc2–+ 9.Nbc3 Nd7 10.Nb5 Nb6 11.Rc1 Nc4 12.Rc2 Nd2 13.Rd2 Bd2 14.Kd2 
    Qb4 15.Nec3 0–0–0 16.Rb1 
       (16.Na7? Kb8 17.Rb1 Ka7–+) 
    16...Nh6 
       (better is 16...Qa5!?+=) 
    17.Ba3 Qa5 18.Bc5 a6 
       (18...b6 19.Be7 c6 20.Nd6 Rd6 21.Bd6 Rd8 22.Qf4 cd5+–) 
    19.Na7 Kd7 20.Qh3 f5 21.Bd4 Rde8 
       (21...Rhg8 22.Rb7 Rde8+–) 
    22.Rb7 
       (22.Bg7 Rhg8 23.Qh6 Qc5 24.Rb7 Rg7 25.Qg7 Re7+–) 
    22...Ng4 23.Qd3 
       (23.Bg7?! Qc5 24.Qh5 Qf2 25.Kd3 Re3 26.Kc4 Rc3 27.Kc3 Qc5 28.Kb2 
       Qd5+–) 
    23...Ne3 24.Be3 fe3 25.Ke2 Rhf8 26.d6 Ke6 27.dc7 
       (27.Rc7?! Qb4 28.Qa6 Qb2 29.Kd3 Qd2 30.Kc4 Rd8+– (30...Qd6?? 31.Rc6 
       Qc6 32.Nc6+–)) 
    27...Qc5 
       (27...f4 28.Qe4 Kf6 29.Qf4 Ke6 30.c8Q Rc8 31.Qe3 Qe5 32.Re7 Ke7 
       33.Qe5 Kf7 34.Nc8 g5 35.Ne4 Rc8 36.Nd6 Kg8 37.Qg5 Kf8 38.Qf6 Kg8 
       39.Nc8 h5 40.Ne7 Kh7 41.Qf7 Kh6 42.Qg6) 
    28.c8Q 
       (better is 28.Qa6 Qd6 29.Rb6 Qb6 30.Qb6 Kf7+–) 
    28...Rc8 29.Qd7 Ke5 30.Qg7 Rf6 
       (30...Ke6 31.Nc8 Rc8 32.Qf7 Ke5 33.Re7 Kd4 34.Rd7 Ke5+–) 
    31.Re7 
       (31.Re7 Qe7 32.Qe7 Re6 33.Qg7 Kd6 34.Nc8 Kc6 35.Qf7+–) 
    1–0
    
    
    
    Katalymov,Boris N – Grushevsky
    corr SU, 1979
    1.b4 c6 
       (1...e5 2.Bb2+=) 
    2.c4 
       (2.e4 e5=) 
    2...d5 
       (2...Nf6 3.a3=) 
    3.cd5 cd5 4.Bb2 
       (4.Nf3 Nf6=) 
    4...Nf6 5.Nf3 g6 
       (5...e6 6.a3=) 
    6.e3 Bg7 7.Nc3 0–0 8.Be2 Bg4 9.0–0 Nbd7 10.Rc1 Ne4 
       (10...Nb6 11.Na4=) 
    11.h3 Bf3 12.Bf3 Nc3 13.Bc3 Ne5 14.Be2 
       (14.Be5 Be5 15.d4 Bb8+=) 
    14...Qd7 
       (14...Rc8 15.Qa4+=) 
    15.Qb3 
       (15.f4 Nc6 16.b5 Nd8+=) 
    15...Rfc8 16.Rc2 Nc4 Black prepares the advance d4 
       (16...b5 17.Be5 Be5 18.Rc5 Rc5 19.bc5=) 
    17.Bg7 Kg7 18.Rfc1 Kg8 19.d3 Nb6 20.Rc5 d4 21.Bf3 de3 22.fe3 e6 23.d4 Nd5 
       (23...Rc5 24.bc5 Nd5 25.e4+/-) 
    24.b5 
       (24.Bd5 ed5 25.Rc8 Rc8 26.Rc8 Qc8 27.Qd5 Qc1 28.Kf2 Qd2 29.Kf3 Qb4+=) 
    24...Rc5+= 25.dc5 
       (25.Rc5 Rd8+=) 
    25...Rc8 26.a4 Qe7 27.Bd5 
       (27.c6 bc6 28.bc6 Qd6+=) 
    27...ed5 28.Qc3 a6 29.c6 bc6 30.bc6 Rc7 
       (30...Qe8 31.Qc5+=) 
    31.Rb1 f6 
       (31...Qe8 32.Rb6+=) 
    32.a5+/- h5 
       (32...Kf7!?+/-) 
    33.Rb6+– h4 34.Ra6 Qd6 
       (34...Kf7 35.Rb6 Kg8 36.a6+–) 
    35.Rb6 Qg3 36.Rb1 
       (36.a6 g5+–) 
    36...Re7 
       (36...Qd6 37.Rb8 Kf7 38.Rb7+–) 
    37.Qe1 
       (better is 37.Qf6 Re3 38.Rb8 Qb8 39.Qg6 Kf8 40.Qh6 Kf7 41.Qe3 Qb1 42.Kh2 Qb8 
       43.Kh1 Qb1 44.Qg1+–) 
    37...Qd6?? 
       (37...Qe5+–) 
    38.Qb4 
       (38.Qh4?! Qc6 39.Rb6 Qc1 40.Kh2 Qc7 41.Qf4 Qf4 42.ef4 Kf7+–) 
    38...Qe6 
       (38...Qb4 39.Rb4 Re6 40.Rb8 Kf7 41.c7+–) 
    39.Qe7!! 
       (39.Qe7 Qe7 40.Rb8 Kf7 41.Rb7+–; 
       39.Qh4?! Qc6 40.Rb6 Qc1 41.Kh2 Qc7 42.Qf4 Qf4 43.ef4 Kf7+–) 
    1–0
    
    
    
    Katalymov,Boris N – Glyanets
    Alma–Ata, 1987
    1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 Nbd7 6.a3 a5 7.b5 Bd6 8.d4 Ne4 
       (8...dc4 9.Bc4 0–0 10.Nc3=) 
    9.Nc3 0–0 10.Qb3 
       (10.c5 Be7=) 
    10...Nc3 11.Bc3 Nf6 12.c5 Be7 13.Ne5 White plans c6 13...Nd7 14.c6 
    Ne5 15.cb7 The passed pawn on b7 will quickly become a dangerous weapon
     15...Nf3 16.gf3 Ra7 17.a4 Bd6 18.Bd2 Qf6 19.Rc1 Rb8 20.f4 Qg6 21.h4 
    h5 22.f3 
       (22.Qd1 Kh7= (worse is 22...Rab7 23.Be2+/-)) 
    22...Qf6 23.Ke2 Rbb7 24.Be1 Qg6 25.Kf2 Qf6 
       (25...Be7 26.Ke2+=) 
    26.Bd3 Ra8 27.Bf5 Qf5 28.Qc2 Exerts pressure on the backward pawn 
    28...Qc2 
       (28...Qf6 29.Qc6 Rab8 30.Ke2=) 
    29.Rc2= g6 30.Bd2 Kf8 31.Rhc1 Ke8 32.Ke2 Kd7 33.e4 Ba3 34.Rg1 White 
    fights for the Initiative 34...Be7 35.f5 de4 36.fg6 ef3 37.Kf3 Rg8 
    38.g7 Bh4 39.Bh6 Bf6 40.Ke4 Be7 41.Rf1 Ke8 42.Rc6 Bd6 43.Rh1 f5 44.Kd3 
    Kf7 45.Rh5 Rbb8 46.Rh3 Rbd8 47.Kc4 Rd7 48.Ra6 Be7 49.Rd3 Rgd8 50.Ra5 e5 
    51.Ra7 
       (51.de5 A pinning theme 51...Rd3) 
    51...Rd6 
       (51...e4 52.Rd1 Bf6+/-) 
    52.Bc1 
       (better is 52.Rc7!? Rh6 53.de5 Rh4 54.Kc3+/-) 
    52...Rd4+= 53.Rd4 Rd4 54.Kc3 Bb4? 
       (better is 54...Kg7 55.Rc7 Kf6+=) 
    55.Kb3+– Bd6 56.Bh6 Rg4 
       (56...Rd3 57.Kc4 Rd4 58.Kc3 Rg4+–) 
    57.b6 Rg3 58.Kc4 Rg4 59.Kd5 Rd4 60.Kc6 
       (60.Kc6 Rc4 61.Kb7 cb6 62.Kb6 Bc7 63.Rc7 Rc7 64.Kc7+–) 
    1–0
    
    
    
    Katalymov,Boris N – Sakharov,Yury N
    Kiev, 1988
    1.b4 c6 2.Bb2 Qb6 3.a3 a5 4.c4 ab4 5.c5 Qc7 6.ab4 Ra1 7.Ba1 Nf6 8.e3 g6 
    9.Nc3 Bg7 
       (9...d5 10.b5=) 
    10.Ne4 0–0 
       (10...b5 11.Nf3+=) 
    11.Bf6+/- Bf6 12.Nf6 ef6 13.Nf3 
       (13.Qf3 Kg7+/-) 
    13...d6 14.Qa1 Qe7 15.cd6 
       (15.d4 Bg4+=) 
    15...Qd6 16.Qd4 Qe7 17.Be2 Rd8 18.Qf4 Bf5 
       (18...Nd7 19.0–0+=) 
    19.0–0 Be4 20.Nd4 
       (20.d4 f5+=) 
    20...f5 
       (20...Bd5 21.d3+=) 
    21.d3 Bd5 22.b5 c5 23.Nc2 
       (23.Nf3 b6+=) 
    23...Nd7 24.Qc7 Ra8 25.Ra1 Ra1 26.Na1 b6 27.Nc2 Qe6 28.Ne1 
       (28.Na3 Kg7+=) 
    28...Kg7 29.h3 Ba8 
       (29...Ne5 30.Nc2=) 
    30.Bf3+= Bf3 31.Nf3 
       (31.gf3?! Nf6=) 
    31...Qd5 
       (31...h6 32.d4+=) 
    32.d4+/- cd4 
       (32...Qe6 33.Ng5 Qe7 34.dc5 bc5 35.b6+/-) 
    33.Nd4 f4 34.Qf4 
       (34.Qc6 Nf6 35.Qb6 fe3 36.fe3 h5+/-) 
    34...Ne5 35.Qg5 f6 36.Qg3 Qa2 37.f4 Nc4 38.f5 Nd2?? 
       (better is 38...Qb1 39.Kh2 Ne5+/-) 
    39.Ne6+– Kf7 40.Qc7 Ke8 41.Qd8 Kf7 42.Qf8 1–0
    
    
    
    Katalymov,Boris N – Greifzu,H
    WSeniors Bad Liebenzell GER, 1996
    1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.Bb2 0–0 6.e3 d5 7.c4 Re8 8.Be2 
    Bf5 9.0–0 Be7 10.d4 Qd7 11.Nc3 dc4 12.Bc4 Bd6 13.Nb5 Ne4 
       (13...Be6 14.Be6 fe6 15.Ne5 Ne5 16.Nd6 (worse is 16.de5 Qb5 17.Qb3 Qb3 
       18.ab3 Be7 19.ef6 gf6-/+) 16...Nf3 17.Qf3 cd6 18.e4=) 
    14.Rc1 Bg4 15.Nd6 cd6 
       (15...Nd6 16.Be2+=) 
    16.d5+= Ne5 
       (better is 16...Ne7!?+=) 
    17.Ne5+– de5 
       (17...Bd1!? 18.Nd7 Ba4+/-) 
    18.f3 Bh5 19.g4 Bg4 1–0
    
    
    
    Katalymov,Boris N (2370) – Sawadkuhi,Massoud Amir (2165)
    Rijeka CRO, 2011
    1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.Nf3 d5 6.e3 Re8 7.Nc3 dc4N 8.Bc4 
    Nc6 
       (8...Be6 
         A) 9.Qb3 Bc4 (9...Na6 10.0–0 Bc3 11.dc3 Nc5 12.Qb4 Nfe4 13.Rfd1 
          Qe7 14.Be6 Qe6; 9...Nc6 10.Be6 Re6 11.Bf6 Qf6 12.0–0 Bc3 13.dc3 b6 
          14.Rad1 Rd6; 9...Bc3 10.Bc3 Bc4 11.Qc4 Nc6 12.Rb1 Rb8 13.Bf6 Qf6 
          14.d4 Re4) 10.Qc4 Nc6 11.Bf6 Qf6 12.Rb1 Bc3 13.Qc3 Qc3 14.dc3 b6;
         B) 9.Bf6 Qf6 10.Be6 Qe6 11.Qb3 Na6 12.0–0 Qb3 13.ab3 Red8 14.Nd4 
          Nc5;
         C) 9.Be6 Re6 (9...fe6 10.0–0 Nc6 11.Qc2 Nd5 12.Ne4 Qe7 13.Rab1 g6 
          14.a3 Ne5) 10.Bf6 Rf6 11.0–0 Nc6 12.Qb3 Rg6 13.Rfc1 Qf6 14.Kf1 Qd6 
         ) 
    9.Bg3 
       (9.Qb3 Ne5 (9...Qe7 10.Bf6 Qf6 11.0–0 Bc3 12.dc3 b6 13.Bd5 Be6 14.c4 
       Na5; 9...Be6 10.Be6 Re6 11.Bf6 Qf6 12.0–0 Bc3 13.dc3 Na5 14.Qa4 Nc6) 
       10.Ne5 Re5 11.Qb4 Rg5 12.g3 b6 13.0–0 Bb7 14.Rae1 Qd7) 
    9...Be6 
       (9...Bc3 10.dc3 Be6 11.Be6 Re6 12.0–0 Ne4 13.Qb3 Na5 14.Qc2 Qe7; 
       9...h6 10.0–0 Be6 11.Qb3 Qd7 12.Be6 Re6 13.Rac1 Rb8 14.Rfd1 Bd6; 
       9...Na5 10.Be2 Be6 11.Nb5 Bd6 12.Nd6 cd6 13.Qa4 Bd7 14.Qa3 Ne4; 
       9...Bf5 10.0–0 Qe7 11.a3 Bc3 12.dc3 Rad8 13.Nd4 Be4 14.Bb5 Bd5; 
       9...Bg4 10.0–0 Bc3 11.dc3 Ne4 12.Qc2 Ng3 13.hg3 Qf6 14.Nd4 Ne5) 
    10.Be6 Re6 11.Ng5 
       (11.0–0 Bc3 12.dc3 Ne4 13.Qb3 b6 14.Rad1 Qe8) 
    11...Re7 12.Rc1 
       (12.0–0 Qd3 13.Qb3 Qf5 14.Nf3 Rd8) 
    12...Qd3 
       (12...Rd7 13.Qb3 Bc3 14.dc3 Na5) 
    13.Qc2 
       (13.Nf3 Nd7 14.Qe2 Nc5) 
    13...Qa6?? 
       (better is 13...Qc4+= 14.Qb3 Qa6) 
    14.Nd5!+/- Bd2 
       (14...Nd5 15.Qh7 Mate attack) 
    15.Qd2 Nd5 16.Qd5 Rd8 17.Rc6 
       (better is 17.Qf5!? g6 18.Qc5+/-) 
    17...Rd5= 18.Ra6 ba6 19.h4 Ra5 20.0–0 f6 21.Nf3 c5 22.h5 Rd7 23.Rc1 Rd3 
    24.a4! Rd7 
       (24...Ra4 25.Rc5 Deflection) 
    25.h6! gh6 26.Bh4 Kg7 27.Rc4 Rd1 28.Kh2 Ra1 29.Rg4 Kf7 30.Rf4 R1a4 31.Rf6 
    Kg7? 
       (better is 31...Kg8!?+/-) 
    32.Rc6+– Rb4 
       (32...c4 33.Bf6 Kf7 34.Kg3+–) 
    33.Bf6 
       (33.Bf6 Kg8 34.Ne5+–) 
    1–0
    
    
    
    
    

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  • 1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 (Kucharkowski-Meybohm gambit, 6 players, 10 days move)
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  • 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
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