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Literatur_Sokolski_Opening - compiled by Peter Markus Steiner (in German)



of Germany
(picture not available)

Kids playing chess

    (All annotations below by Fritz)
    (Games' source: Marek's 1.b4 database)
    (1) Frenzel,Lothar – Borrmann,Fritz
    corr SOK–90–56, 1990
    1.b4 a5 2.b5= c6 3.c4 Nf6 4.e3 g6 
       (4...cb5 5.cb5 d5 6.Bb2=) 
    5.Bb2 Bg7 6.Qc2 
       (6.Nc3 0–0=) 
    6...0–0 7.Nf3 cb5 8.cb5 d5 9.Be2 Bf5 10.d3 a4 
       (10...Qd6 11.Nc3=) 
    11.0–0 Nbd7 
       (11...Qa5 12.Nd4=) 
       (12.Rc1 Nb6=) 
       (12...Bg4 13.f3 Bh5 14.Qd2=) 
    13.Nc3 Qc7 
       (13...a3 14.Bc1+=) 
       (14.Ba3 Rfc8 15.Rac1 Qd8+=) 
       (14...a3 15.Ba1 Qd6 16.Nd1+=) 
       (15.Ne6 fe6 16.a3 e5+=) 
       (15...Qd6 16.f4=) 
       (16.Ne6 fe6 17.a3 Nc5+=) 
       (16...Nc5 17.Ba3=) 
    17.Ne6+= fe6 Black gets strong initiative 18.Ba3 e5 19.f4 
    19...d4+= 20.Ne4 de3 21.Qe3 Nbd5 22.Rc8 Rc8 
       (worse is 22...Ne3 23.Rd8 Rd8 24.Be7 Ne4 25.Bd8+/– (worse is 25.de4 Rd7 26.Rf3 ef4+=)) 
       (better is 23.Qa7!?=) 
    23...Bf6–/+ 24.Qd2 
       (24.Qf2 Nf4 25.Bg4 Nd3–/+) 
    24...ef4 25.d4 g5 
       (25...Nc3 26.Rf4 e5 (26...Ne2?! 27.Qe2 Bd4 28.Kh1=) 27.Rf6 Qd4 (
       27...Qf6?! 28.Bg4 Ne4 29.Qe2+=) 28.Qd4 Ne2 (28...ed4? 29.Bf1+–) 
       29.Kf1 Nd4–/+) 
       (better is 26.Bg4 Rb8 27.Rc1–/+) 
    26...Ne3–+ 27.Rb1?? 
       (27.Rc1 Rc1 28.Qc1 Bd4 29.Kh1–+) 
    27...Rc2 28.Qd3 
       (28.Qe1 Qd5 29.Qf2 Qa2 30.Rc1 Qb2 31.Rc2 Qc2 32.Bf1 Qf2 33.Kf2–+) 
    28...Qd5 29.Bf3 Rg2 
       (29...Rg2 30.Kh1 Qf3 31.Qb3 ab3 32.ab3 Qh3) 
    (2) Frenzel,Lothar – Hasler,Ulrich
    corr SOK–88–25, 1988
    1.b4 a5 2.b5 Nf6 3.Bb2 d6 4.e3 e5 5.c4 g6 6.Nf3 Bg7 7.Be2 0–0 8.0–0 Bf5 
    9.Nc3 Re8 10.Nh4 White gets the initiative 10...Qd7 
       (10...Be6 11.Nf3=) 
    11.f4 Ne4 
       (11...e4 12.Nf5 Qf5 13.g4+=) 
       (12.Nf5 Qf5 13.Nd5 ef4 14.Bg7 Kg7 15.Nc7 Qe5 16.Na8 fe3+–) 
    12...Be4+= 13.d3 Bf5 
       (13...Qe7 14.g3 Bf5 15.Nf5 gf5 16.fe5 Be5 17.d4+/–) 
    14.e4 Qe7 15.Nf5 gf5 16.fe5 fe4 17.d4 
       (better is 17.Bh5!? Rf8 18.ed6+–) 
    17...de5= 18.Bh5 Rf8 19.de5 Qg5 20.Bf7 Rf7 Decoy to f7 21.Rf7 Kf7 
    22.Qd5 Ke8?? 
       (22...Kg6 23.Qe4 Kh6+–) 
       (23.Qg8 Bf8 24.Qg5 Bc5 25.Kf1+–) 
    (3) Frenzel,Lothar – Andre,Karl
    corr SOK–91–71, 1991
    1.b4 a5 2.b5= Nf6 3.Bb2 g6 4.c4 
       (4.e4 d6=) 
       (4...Bg7 5.Nf3=) 
    5.e3 Bg7 6.Be2 Bb7 7.Bf3 c6 8.Ne2 0–0 9.0–0 d5 10.d3 Qc7 11.a4 
       (11.bc6 Bc6 12.cd5 Ng4 13.Bg4 Bb2=) 
       (11...Ng4 12.Bg4 Bb2 13.Ra2=) 
    12.cd5= cd5 Black fights for the Initiative.  13.Nd2 Nbd7 14.Rc1 Qb8 
    15.Ng3 Nc5 
       (better is 15...Qd6+=) 
       (better is 16.Be2+=) 
    16...Na4–/+ 17.Ba3 Rc8 18.Rc8 Qc8 19.Qd2 
       (19.d4 e4 20.Be2 Nc3–+) 
    19...Qc3 20.Rb1 
       (20.Qd1 e4 21.Be2 Nb2–/+) 
       (20...e4 21.de4 de4 22.Be2–+) 
    21.Qd1 Nd7?? 
       (better is 21...Qc2 22.Qc2 Rc2–+) 
    22.Rc1+/– e4 23.Rc3 
       (better is 23.de4!? Qe5 24.Rc8 Bc8 25.ed5+/– (25.Qd5?! Qd5 26.ed5 Nc3=)) 
    23...Nc3= 24.Qf1 
       (24.Qf1 ef3 25.gf3 Nb5 26.Be7+=) 
    Line +=
    (4) Frenzel,Lothar – Schepers,Herbert
    corr DDR cup, 1988
    1.b4 a5 2.b5 Nf6 3.Bb2 g6 4.g4 Bg7 5.g5 Nh5 6.Bg7 Ng7 7.a4 
       (7.d4 h6=) 
       (7...e5 8.h4+=) 
    8.c4 d5 9.e3 e5 10.h4 
       (10.cd5 cd5 11.Nc3 
         A) 11...Qg5 12.Nd5 Qd8 13.Rc1 Qd5 14.Rc8 Ke7 15.Rh8 Qh1 16.Qg4+– (
          worse is 16.Rh7 Nd7+/–);
         B) 11...Be6=) 
    10...h6+= 11.Qf3 Be6 12.Nc3 
       (12.cd5 cd5 13.Bh3 e4+=) 
    12...dc4–/+ 13.Qe4 hg5 14.hg5 Rh1 15.Qh1 Qg5 16.Qh8 Ke7 17.Qg7 
         A) 17...Qg1?? 18.cb7 Ra7 19.Qb8 (19.Qg7?! Rb7 20.Qe5 Nd7 21.Nd5 
          Ke8+/–) 19...Rb7 20.Qb7 Kf6 21.Qc7+–;
         B) 17...bc6 18.Qg7 Qg1+=) 
    17...Qg1 18.Qe5 Nd7 19.Qc7 Rh8 20.bc6 bc6 21.Qc6 
       (21.Ne2 Qg5 22.Nd4 Bh3=) 
       (better is 21...Rh2!? 22.0–0–0 
         A) worse is 22...Rf2 23.Bh3 (23.Bc4?! Qg2 24.Bd5 Qh3=) 23...Qg3 24.Be6 
          fe6 25.Ne4+–;
         B) 22...Qf2 23.Bc4 Qf5+=) 
    22.0–0–0+= Rh2 23.Ne4 Qg4 
       (better is 23...Rh1!?+=) 
    24.Qd6+/– Ke8 25.Qh2 Qe4 26.Qh8 Ke7 27.Qc3 Nc5 28.Qa3 Qd5 29.d4 cd3 30.Bd3 
    Kf6 31.Qc3 Qe5 Do you see the mate threat? 32.Qe5 Ke5 33.f4 Kf6 
    34.Bc2 g5 35.fg5 Kg5 36.Rf1 f5 37.Rf4 Kf6 38.Kd2 Ke5 39.Kc3 Na6 (54 
    moves) ฝ–ฝ
    (5) Frenzel,Lothar – Wolfram,Reinhard
    corr SOK–89–40, 1989
    1.b4 a5 2.b5 Nf6 3.Bb2 g6 4.Nf3 Bg7 5.c4 d6 6.e3 0–0 7.Be2 e5 8.0–0 Nbd7 
       (8...e4 9.Nd4=) 
    9.d4 Qe7 10.de5 
       (10.Nc3 ed4 11.ed4 Re8+=) 
    10...Ne5 11.Ne5 de5 12.Ba3 Qe8 
       (better is 12...c5!?+=) 
    13.Bf8+– Qf8 14.Nd2 e4 15.Rb1 b6 16.Nb3 Bf5 17.Nd4 Rd8 18.Qc2 Bc8 19.Rfd1 
    Qc5 20.Bf1 
       (20.Nc6 Rd7+–) 
       (better is 20...Bg4 21.Be2 Bc8+–) 
       (21.Ne6 fe6 22.Rd8 Kf7 23.Rbd1+–) 
    (6) Frenzel,Lothar – Woschkat,Karl_Heinz
    corr SOK–92–83, 1992
    1.b4 b5 2.e4 e6 3.a3 Bb7 4.e5 
       (4.Bb5 Be4 5.Nf3 Qf6=) 
    4...a5 5.ba5 
       (5.Nf3 Bc6=) 
    5...Ra5+= 6.Nf3 f6 7.Bb2 Nc6 8.c4 
       (8.Bc3 b4 9.ab4 Ra1 10.Ba1 Nb4=) 
    8...bc4 9.ef6 Nf6 10.Bc4 Bd6 11.0–0 
       (11.Bc3 Ra7=) 
    11...0–0+= 12.Qb3 Qa8 13.d4 
       (13.Qe3 Nd5 14.Bd5 Rd5+=) 
    13...Ne7 14.Nbd2 Ne4 Black gets the initiative 15.Ne4 Be4 16.Ne1 Rh5 
    17.h3 Rhf5 18.Qe3 Qb7 
       (18...Bf4 19.Qe2 Rb8+=) 
       (better is 19.Bc3!?+=) 
    19...Bb1–+ 20.Qe2 
       (20.Qb3!? Qb3 21.Bb3 Ba2 22.Ba2–+) 
    20...Ba2 21.Ba2 Nd5 22.Nd3 Qa6 
       (22...Qa8 23.Ne5 Nf4 24.Qf3–+) 
       (23.Nf4 Qa5 24.Nd5 ed5–+ (24...Rd5?! 25.Bd5 Qd5 26.Rb1+=)) 
       (23...Ba3!? 24.Ba3 Qa3 25.Bd5 Rd5 26.Ne5–+) 
    24.Nf4 Bf4 25.Qd1 
       (25.Qe1 Qd3–+) 
    25...Be3! 26.Bc1 
       (26.fe3 A pinning theme 26...Rf1 Theme: Double Attack) 
    26...Rf2 27.Rf2 Bf2 28.Kh2 
       (28.Kh1 Qd6–+) 
    28...Qd6 29.Kh1 Bd4 30.Bc4 Rf2 31.Qd3 
       (31...Qc6 32.Be6 de6–+) 
    (7) Frenzel,Lothar – Wall,Bill
    corr, 2006
    1.b4 b6 2.Bb2 Bb7 3.e3 Nf6 4.Nf3 g6 5.Be2 
    Bg7 6.d4 0–0 7.0–0 d6 8.c4 c5N 
       (8...d5 9.c5 bc5 10.dc5 Ba6 11.Ba6 Na6 12.a3 c6 13.Bf6 Bf6 14.Nd4 Rc8 
       15.Qa4 Nb8 16.Qa7 e5 17.Nb3 d4 18.N1d2 de3 19.fe3 e4 20.Rad1 Qd3 
       21.Rf6 1–0 Bonetti,S–NME/ICC 2002) 
    9.a3 e6 
       (9...Nbd7 10.Nc3=) 
    10.Nc3 Nbd7 11.dc5 dc5 12.Nb5 a6 13.Nd6 Bc6 
       (13...Qc7 14.Qd3+=) 
    14.Qc2 Qc7 15.Rfd1 cb4 16.ab4 a5 
       (16...Bd5 17.Qb3+/–) 
    17.b5 Bd5 18.Ba3 Bf3 
       (18...Rfd8 19.Ng5 e5 20.Rac1+/–) 
       (worse is 19.gf3 Rfd8 20.Bb2 Nc5+=) 
    19...Ra7 20.Ra2 
       (20.e4 Ne8 21.Ne8 Re8+=) 
       (20...Rd8 21.Qa4+=) 
       (21.Bc6 Rd8 22.Bc5 bc5+=) 
    21...Qc5 22.Ne4 
       (22.Ra4 Qc7+=) 
    22...Ne4 23.Qe4 
       (23.Be4 f5 24.Bf3 Be5+=) 
       (23...a4 24.Qc6 Qc6 25.bc6=) 
       (24.Ra4 Qe5+=) 
    24...Rfc8 25.Qf4 
       (25.Rad2 Bf6=) 
    25...Be5 26.Qe4 
       (26.Qg4 f5 27.Qh3 Kh8+=) 
    26...Bc3 27.Qd3 Be5 
       (27...Bb4 28.Qb3=) 
    28...Qa3+= 29.Ra3 Kf8 
       (29...g5 30.h3+=) 
    30.f4= Bf6 31.Kf2 Ke7 32.Rad3 a4 33.R1d2 e5 
       (33...Ra7 34.Ra3+=) 
    34.Ra3+= Ra7 
       (34...ef4 35.ef4 (35.Ra4?? fe3 36.Ke3 Bg5 37.Kf3 Bd2–+) 35...Ra8 
    35.Rda2 ef4 36.ef4 Bd4 37.Kf1 Rca8 38.Bd1 Kf6 
       (38...h6 39.g3+= (39.Ba4? Bc5–+)) 
       (39.Ba4? Bc5 40.Rc3 Ra4 41.Ra4 Ra4–+) 
    39...Ra4 40.Ba4 
       (40.Ra4 Ra4 41.Ba4 h6+=) 
       (40...h6 41.g3+=) 
       (41.Bb3 Re8+=) 
    41...Bc5 42.Kg2 
       (42.Bb3 Rd8+=) 
    42...Rd8= 43.Kh3 
       (43.Bc2 Rd4=) 
    43...Rd3 44.Rb2 Rc3 ฝ–ฝ
    (8) Frenzel,Lothar – Husslein
    corr private, 1998
    1.b4 c5 2.b5 d5 3.e3 e5 4.Bb2 Bd6 5.f4 Qe7 6.Nf3 Bg4 7.fe5 Bf3 
       (7...Be5 8.Be5 Bf3 9.Qf3) 
       (8.ed6?! Qh4 9.g3 Qb4) 
    8...Be5 9.Be5 Qe5 10.Nc3 Nf6 11.Bd3 
    11...0–0 12.0–0 Nbd7 13.Qh3 h6 14.Rf5 Qd6 15.Raf1 Rae8 16.Rf6?? 
    16...Nf6 17.Qh4 Ne4 18.Be4 de4 
       (18...Re4?! 19.Ne4 de4 20.Qe4 Qd2 21.Qb7 Qe3=) 
    19.Ne4 Re4 
       (19...Qd5!? 20.d3 Qa2–/+) 
    20.Qe4 Qd2 21.a4 Qd7 22.Qd3 Rd8 23.Rd1 Qd3 24.cd3 f5 ฝ–ฝ
    (9) Frenzel,Lothar – Rohde,Friedhelm
    corr SOK–92–86, 1992
    1.b4 c6 2.Bb2 a5 3.a3 ab4 4.ab4 Ra1 5.Ba1 Qb6 6.c3 d5 7.e3 Qa7 
       (7...Nf6 8.Nf3=) 
    8.Bb2= Bf5 9.Qb3?? 
       (better is 9.d3=) 
    9...Bb1–+ 10.d3 Nf6 11.Nf3 e6 12.Be2 Ba2 
       (12...Qa2 13.Qa2 Ba2 14.Kd2–+) 
    13.Qc2 d4 
       (13...Bd6 14.0–0 0–0 15.Ra1–/+) 
    14.Nd4 e5 15.Nf3 Bd6 16.0–0 0–0 
       (16...Na6 17.Ra1 Be6 18.Ng5–+) 
    17.Ra1 Nbd7 18.Bc1 
       (18.d4 Ra8–+) 
       (18...Ra8 19.e4–+) 
       (19.Ra7 Bc2 20.Ne1 Bb3–+) 
    19...Ba4 20.c4 Ra8 
       (20...b6 21.b5 cb5 22.cb5–+) 
    21.c5–/+ Bc7 22.Bd1 Bd1 
       (22...b5!? 23.cb6 Nb6 24.Ba4 Na4 25.Qc2–+) 
    23.Ra7–/+ Ra7 24.Ne1 Ba4 25.h3 Bb3?? 
       (better is 25...Bb5–+) 
    26.Qb3+– Ra1 27.Qb2 
       (27.Qb2 Ra4 28.Nf3+–) 
    (10) Frenzel,Lothar – Kretzschmar
    corr Bilguer, 1990
    1.b4 c6 2.Bb2 a5 3.a3 ab4 4.ab4 Ra1 5.Ba1 Qb6 6.c3 d5 7.e3 Bf5 8.Nf3 Nf6 
    9.Be2 e6 10.0–0 Bd6 11.Na3 
       (11.Nh4 Qc7 12.Nf5 Bh2 13.Kh1 ef5=) 
       (11...e5 12.d4 e4 13.Ne5+=) 
       (12.Nh4 Be4+=) 
    12...Nbd7 13.Ncd4 Bg6 14.h3 
       (14.Nh4 Be4+=) 
       (14...e5 15.Nb3–/+) 
    15.d3 e5 16.Nc2 Ra8 17.c4 Bb8 
       (17...dc4 18.dc4 c5 19.b5+=) 
    18.Bc3 Qc7 19.Nh4 e4 Do you see the mate threat? 20.f4 ef3 21.Nf3 dc4 
    22.dc4 Ne4 23.Be1 Ne5 The mate threat is Nxf3 24.Ncd4 Nf3 25.Nf3 Bh5 
    26.g4 Bg6 27.Bd3 Ra2 28.Qb1? 
       (better is 28.Qb3 Rh2! 29.h4–/+) 
    28...Nc3!!–+ 29.Qc1 
       (29.Bc3 Theme: Deflection from g3 29...Qg3 A classical mating 
    29...Bd3 30.Qc3 Qh2!! 31.Nh2 Bh2 A beautiful mate combination 32.Kh1 
       (32...Be4 33.Rf3 Bf3; 
       32...Bf1 33.e4+=) 
    (11) Frenzel,Lothar – Cossmann,R
    corr SOK–91–71, 1991
    1.b4 c6 2.Bb2 a5 3.a3 ab4 4.ab4 Ra1 5.Ba1 Qb6 6.c3 d5 7.Nf3 Bf5 8.e3 
       (8.d3 e6 9.e4 de4 10.de4 Be4 11.Nbd2 Bg6 12.Be2 Nf6 13.0–0 Be7 14.Nh4 
       Qc7 15.Re1 0–0 16.Ng6 hg6 17.Qb3 b5 18.c4 bc4 19.Bc4 Bd6 20.Nf3 Nbd7 
       21.Be6 fe6 22.Qe6 Rf7 Daatselaar,J (2200)–Thorn Leeson,J (2185)/KE04 
       NBC Email 2001/(Fritz 6 (3s))/ฎ) 
    8...Qa7 9.Nd4 
       (9.Bb2 Qa2 10.Qc1 Qb1 11.Qb1 Bb1 12.Ke2 Nf6 13.g3 e6 14.Bh3 Be4 15.d3 
       h5 16.de4 de4 17.Nd4 Ng4 18.f3 ef3 19.Kf3 Ne5 20.Ke2 Nbd7 21.Ra1 Bd6 
       22.Ra8 Nb8 23.Kd2 Nc4 Neumann,F (1650)–Klawitter,R (2110)/RSS5E 
       NoEngine–79, 2009/0–1 (3) 
       (9...Bg6 10.Nb3 e5 11.Be2 Nf6 12.0–0 Bd6 13.d3 Nbd7 14.N1d2 0–0 
       15.Bb2 (15.Nf3 h6 16.c4 Ra8 17.c5 Bc7 18.Bc3 Qb8 19.Qc2 e4 20.de4 Be4 
       21.Qd2 Bf3 22.Bf3 Bh2 23.Kh1 Ne5 24.Qd1 Nf3 25.Bf6 Ne5 26.f4 Nc4 
       27.Bd4 1–0 byron_de–Steinutz/ 2002) 15...Ra8 
       Montag,W–Habedank,D/corr FRG jub40 qg39 1986) 
    10.Bb2 Bg6 11.Na3 e5 12.Ndc2 Bd6 13.Be2 Nd7 14.0–0 0–0 15.Ne1 
       (15.c4 Qa4=) 
    15...Nb6 16.Nac2 Qa2 17.Bc1 Ra8 18.f4 ef4 19.ef4 Qb3 20.Nd3 Ra2 21.Ne3 
    Qd1 22.Nd1 Bd3 23.Bd3 Bf4 24.Ne3 
       (24.Rf4!? Ra1 25.Ne3 Rc1 26.Rf1 Rf1 27.Kf1–/+) 
    24...Be3–+ 25.de3 Ng4 26.e4 Ne5 27.Bb1 Re2 28.ed5 Nd5 29.Rd1 Nc4 30.Bd3 
    Rg2! 31.Kh1 
       (31.Kg2 Nce3 Double attack) 
    31...Rg4 32.Bf5 Rh4 33.Bc8 
       (33.Bg5 Rh5 34.h4–+) 
    33...Nd6 34.Bd7 Ne4 35.Re1 Ndc3 36.Bb2 Nd5 37.b5 c5 38.Bc8 b6 39.Bb7 Ndf6 
    40.Ra1 c4?? 
       (better is 40...h5–+) 
       (41.Ra8 Ne8 42.Re8) 
    (12) Frenzel,Lothar (2075) – Boehme,Sebastian (2560)
    RSM2009 (1), 2009
    1.b4 d5 2.Nf3 Nf6 3.e3 Bg4 4.Bb2 e6 5.a3 a5 6.Nc3N Nbd7 
       (6...ab4 7.ab4 
         A) 7...Bf3 8.gf3 (8.Qf3 Ra1 9.Ba1 Bb4 10.Bd3 Nbd7 11.0–0 Ne5 
          12.Bb5 c6 13.Qg3–/+) 8...Ra1 9.Qa1 Bb4 10.Qa4 Nc6 11.Bb5 
          Be7 12.Bc6 bc6 13.Qc6+=;
         B) 7...Ra1 8.Qa1 Bf3 9.gf3 Bb4 10.Qa4 Nc6 11.Bb5+= Be7 12.Bc6 bc6 
       6...Bf3 7.gf3 (7.Qf3 ab4 8.ab4 Ra1 9.Ba1 Bb4 10.Bd3 Nbd7 11.Qg3 Bd6 
       12.f4 0–0 13.0–0–/+) 7...ab4 8.ab4 Ra1 9.Qa1 Bb4 10.Qa7 Qc8 
       11.Qa4 Nc6 12.Bb5 Bd6 13.Bc6+=) 
         A) 7...Be7 8.Be2 (8.h3 Bf3 9.Qf3 0–0 10.Be2 Bd6 11.d4 c5 12.bc6 
          bc6 13.0–0=) 8...e5 9.h3 Be6 10.0–0 0–0 11.Ng5 Nb6 
          12.Ne6 fe6 13.f3=;
         B) 7...Bd6 8.d3 (8.Be2 e5 9.Ng5 Be2 10.Qe2 0–0 11.0–0 a4 12.Rfb1 
          Nb6 13.d3+=; 8.h3 Bf3 9.gf3 0–0 10.f4 a4 11.Qf3 Qe7 
          12.Rg1 Kh8 13.Kd1=) 8...0–0 9.Be2 c5 10.h3 Bh5 11.g4 
          Bg6 12.h4 h5 13.g5=;
         C) 7...Ne5 8.Be2 Bf3 9.gf3 Bd6 10.f4 Ng6 11.h4 0–0 12.h5 Ne7 
       (7...Bd6 8.Nb5 Bc5 9.h3 Bh5 10.Bc3 c6 11.Nbd4 Ne4 12.Bb4 e5 13.Nb3= 
    8.h3 Bf3 
       (8...Bh5 9.g4 (9.Be2 Bf3 10.Bf3 Bd6 11.Be2 0–0 12.Nb5 Be7 13.0–0+= 
      ) 9...Bg6 10.Nh4+= Be4 11.Rg1 h6 12.Ne4 de4 13.d3+=
    9.Qf3 Be7 
       (9...Ne5 10.Qg3 Ng6 11.Be2 Bd6 12.f4 d4 13.Nd1–/+) 
    10.Be2 c6 
       (10...0–0 11.0–0 c6 12.a4 Bd6 13.Ba3+=) 
    11.0–0 Qc7 
       (11...Bd6 12.Rfb1 0–0 13.d4+=) 
       (12.Rfb1 0–0+= 13.a4+=) 
    12...0–0 13.Ra2 
       (13...Rfa8 14.Rfa1+=) 
    14.Rfa1 Rfa8 15.a4 Bb4 16.Bd3 b5 17.e4 Nb6 18.e5 Nfd7 19.Qg4 Na4 20.Na4 
    Ra4 21.Ra4 Ra4 22.Rb1 Qa5 23.Qf3 Ra2 24.Qd1 Nb6 25.Bc1 Nc4 26.Kh2 Ra1 
    27.Be3 Rb1 28.Qb1 Bc3 
       (28...Ne3 29.fe3 Bc3 30.Be2–+) 
       (29.Bc4 bc4 30.Qb8 Kh7 31.Qb7–/+) 
       (29...Ne3 30.fe3 b4 31.Kf2–+) 
       (30.f4 Qb4 31.Qg1 Nd3 32.cd3 Qb2–+) 
       (30...Nd3?! 31.Qd3 c5 32.dc5 Be5 33.f4–+) 
    31.f4 Bd4 32.Bc1 
       (32.Bd4 Qd4 33.Kf3 Nd3 34.cd3 b4–+) 
    32...Nd3 33.Qd3 c5 34.Kf3 b4 35.Qd1 Qa1 36.Ke2 c4 37.Bd2 Qa3 38.Bc1 Qc3 
    39.Qd2 b3 
       (39...b3 40.Qc3 Bc3–+) 
    (13) Frenzel,Lothar – Lohr
    corr SOK–90–56, 1990
       (1.e4 d5 2.ed5 Qd5+=) 
       (1...e5 2.Bb2+=) 
    2.Bb2 c6 
       (2...f6 3.e3+=) 
    3.e3= Bf5 4.d4 
       (4.Ne2 Qd6=) 
       (4...Nf6 5.a3+=) 
    5.a3 e6 6.Nd2 Nf6 7.c4 Nbd7 8.c5 Qc7 9.Ngf3 Be7 10.Be2 Ne4 11.0–0 0–0 
       (12.Ne4 Be4 13.Nd2 Bf5=) 
    12...Ne5 13.de5 Nd2 14.Qd2 a5 15.Bc3 
       (15.Bd4 f6 16.ef6 Bf6 17.Bf6 Rf6=) 
    15...Ra7 16.Ra2 Rfa8 17.Rfa1 ab4 18.ab4 Qb8 19.Ra7 Ra7 20.Ra7 Qa7 21.Bd4 
    Qa3 22.Qb2 ฝ–ฝ
    (14) Roscher,Joerg – Frenzel,Lothar
    corr, 1989
    1.b4 d5 2.Bb2 d4 3.Nf3 c5 4.bc5+/– e5 5.Ne5 Bc5 6.c3 dc3 7.Nc3 Bf2 8.Kf2 
    Decoy to f2 8...Qd4 
       (8...Qf6 9.Ke1 Qe5 10.e3+=) 
    9.e3+/– Qe5 10.Bb5 Bd7 11.Qb3 
       (11.Bc4 Qg5 12.Qb3 Qf5 13.Ke1 Bc6+/–) 
    11...Qf5 12.Ke1 Nf6 13.Rf1 
       (13.Bc4!? 0–0 14.Ba3+/– (14.Qb7?! Bc6 15.Qe7 Qg4+/–)) 
    13...Qg4+= 14.Rf6 gf6 15.Nd5 Kf8 16.Bf6 
       (16.Qa3 Kg7 17.Bf6 Kh6 18.Bh8+–) 
       (16...Bb5 17.Qb5 Na6 18.Qb7 Re8 19.Bh8 Qg2 20.Qa6 Qd5 21.Qh6 Ke7 
       22.Bf6 Ke6 23.Bd4 Kd7 24.Qh3 Kd6 25.Ba7 Rg8+–) 
    17.Qb4+– Kg8 18.Ne7 
       (18.Ne7 Kf8 19.Nf5 Ke8 20.Qe7) 
    (15) Frenzel,Lothar – Blodig,R
    Hindlangen, 1997
    1.b4 d5 2.Bb2 Qd6 3.a3 e5 4.e3 Be6 5.Nf3 Nd7 6.d3 Be7 7.Nbd2 Bf6 
       (7...Ngf6 8.c4 c6 9.Be2=) 
       (8.c4 a5=) 
       (8...g5 9.d4=) 
    9.Be2 Ne7 10.0–0 0–0 11.c4 Rfd8 12.Qc2 Rac8 13.Rfd1 Qb8 14.Nf1 b5 15.c5 
    a5 16.Bc3 a4 17.d4 
       (better is 17.Ng3!?=) 
    17...Bf5–/+ 18.Qb2 ed4 19.Bd4 Bb1 20.Qb1 Ne5 
       (20...Bd4 21.Nd4 Nf6 22.Qd3–/+) 
    21.Ne5 Be5 22.Bg4 Bd4 23.Bc8 Bc5! 
       (23...Rc8?! 24.Rd4 Re8 25.Ng3=) 
       (24.bc5 Qc8 Eliminates the defender c8) 
    24...Nf5 25.Qf5 Be7 26.Rc1 g6 27.Qc2 Rc8 28.Ng3 
       (28.Qd3 Qe5–/+) 
       (28...c5 29.Qc3–/+) 
    29.Rd1 c5 30.bc5 Rc5 31.Qa2 Qc7 
       (31...b4 32.ab4 Qb4 33.Qa1–/+) 
    32.Qd2 Be5 33.f4 
       (33.Nf1 Qe7–/+) 
    33...Bc3 34.Qd3 Qe7 
       (34...b4 35.ab4 Bb4 36.Qd4–+) 
       (35.Ne2 b4–/+) 
       (better is 35...Bg7 36.e4 de4 37.Qe4 Bf8–+) 
       (better is 36.Kh1–/+) 
    36...Rb5–+ 37.Qb5 Qe3 38.Kh1 Qf4 
       (38...Qa3 39.h3 Qa1 40.Kh2–+) 
       (39.Qc6 Bc7 40.Qe8 Kg7–+) 
       (better is 39...Bc3–+) 
       (40.Qb6 Qf1 41.Qg1 Qg1 42.Kg1–+) 
    40...Qd4 41.Kh2 h5 42.Kg3 
       (42.Qe8 Kg7 43.Qe1–+) 
       (42...h4 43.Kf3 Qe4) 
    43.Kh2 h4 
       (43...Qg1 44.Kg3 h4 45.Kh4 Qf2 46.Kg4 Qf5 47.Kh4 Qf4 48.g4 Bd8) 
    44.Qe8 Kh7 
       (44...Kh7 45.Qe3 Be3 46.Ne3 Qe3 47.Kh1 Qe1 48.Kh2 d4 49.g4 hg3 50.Kg2 
       Qf2 51.Kh1 Qf1) 
    (16) Frenzel,Lothar – Mitzel,Robert
    GER–ch Seniors, 2001
    1.b4 d5 2.Bb2 Qd6 3.a3 e5 4.e3 Be6 5.Nf3 Nd7 6.Be2 Be7 
       (6...Ngf6 7.Ng5+=) 
       (7.Nc3 Bf6=) 
       (7...0–0–0 8.d4 e4 9.Nfd2+=) 
       (8.Nc3 a6=) 
       (8...a5 9.c4 ab4 10.ab4 Ra1 11.Ba1=) 
       (9.c4 c6=) 
       (9...a5 10.b5+=) 
    10.c4= Rfd8 
       (10...b5 11.c5 Qc7 12.Ng5=) 
       (11.c5 Qc7=) 
       (11...Bf5 12.e4 Bg4 13.c5=) 
    12.c5 Qc7 13.Qc3 The pressure on e5 grows 
       (13.Ng5 Bg4 14.Bg4 Ng4=) 
       (13...ab4 14.ab4 d4 15.ed4+=) 
    14.Ne5+= d4 
       (14...Ne5 15.Qe5 Qe5 16.Be5 ab4 17.cb6 Ra3 18.b7+/–) 
       (15.Qd4 Nc5 16.Qf4 Nd5=) 
    15...Nd5+= 16.Qc1 Nf4 
       (16...ab4 17.cb6 N7b6 18.Nc6 ba3 19.Ne7 (worse is 19.Nd8 ab2 20.Qb2 Rd8–/+; 
       19.Ba3? Ba3 20.Ra3 Rdc8–+) 19...Qe7 20.Ba3+/–) 
       (17.Bf3 Ne5 18.de5 bc5 19.ba5 Nd3+=) 
    17...Ne5= 18.de5 
       (18.cb6 Qb6 19.de5 ab4 (worse is 19...Nd3 20.Bd3 Rd3 21.Qc2=; worse is 19...Ne2 
       20.Qe2 ab4 21.Rfb1+=) 20.ab4 Qb4 (worse is 20...Bb4 21.Ra8 Ne2 22.Qe2 Ra8 
       23.Nc4+=; worse is 20...Ne2 21.Qe2 Qb4 22.Ra8 Ra8 23.Ne4+=) 21.Ra8 Ra8+=) 
    18...bc5 19.bc5 
       (19.ba5 Qa5 20.Ne4 Qa6=) 
       (better is 19...Nd3 20.Bd3 Rd3=) 
       (better is 20.Bc3 Nd3 21.Qa4=) 
       (20...Bc5?! 21.Nf3 Ne2 22.Qe2=; 
       20...Nd3?! 21.Qc2 Qe5 22.Bd3 Qa1 23.Bh7 Kf8 24.Be4–/+; 
       20...Ne2?! 21.Qe2 Bf5 22.Qe3 Bd3 23.Re1+=) 
    21.Ne4 Ne2 
       (21...Qa1?! 22.Bf4 Qd1 23.Rd1–/+) 
    22.Qe2 Qa1 23.Bg5 Rb1 
       (better is 23...Qa3!? 24.Be7 Qd3 25.Qe1–+) 
    24.Be7 Rf1 25.Qf1 Qf1 26.Kf1 Rd3 
       (26...Rd3 27.a4 Rd4–+) 
    (17) Frenzel,Lothar – Dittwald,W
    CiF, 1988
    1.b4 d5 2.Bb2 Nd7 3.Nf3 Ngf6 4.e3 e6 5.b5 Bd6 6.Be2 0–0 7.c4 Nb6 8.d3 dc4 
    9.dc4 Bb4 10.Nbd2 Ne4 11.Qc2 Nd2 12.Nd2 Qd2 
    13.Qd2+/– Bd2 14.Kd2 Rd8 15.Ke1 f6 16.f4 Bd7 17.a4 Be8 
    18.a5+/– Nc8 19.Rf1 
       (19.a6 ba6 20.Ra6 Rb8+/–) 
    19...c5 20.Rf3 
       (20.a6 b6+/–) 
    20...Bg6 21.Rg3 Nd6 22.h4 Ne4 23.Rh3 Rd2 24.Bc1 Rc2 25.h5 
       (25.g4 Nd6=) 
    25...Bf5+= 26.Rh4 Ng3 27.Bf3 Rd8 
       (27...Rc4?! 28.a6=) 
    28.b6 Be4 29.Rh3?? 
       (29.Bg4 f5 30.Bd1 Rg2 31.Bg4 fg4 32.Rh2 Rh2 33.Ra2 Bf3 34.Rh2 Rd1 
       35.Kf2 Ne4) 
       (29...Bf3 30.Bd2 Rdd2 31.Rg3 Re2 32.Kf1 Rf2 (32...Bg2?! 33.Rg2 Rg2 
       34.ba7 Rcf2 35.Ke1 Re2 36.Kf1 Rgf2 37.Kg1 Rg2 38.Kf1 Rgf2 39.Kg1 Rg2 
       40.Kf1=) 33.Kg1 Rg2 34.Rg2 Rg2 (34...Bg2 35.ba7 b6 36.ab6+–) 35.Kf1 
       ab6 36.ab6 Rh2 37.Ra8 Kf7–+) 
    (18) Frenzel,Lothar – Roggensack Hanspach,Peter
    corr SOK–89–40, 1989
    1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.f4 Bd6 6.Nf3 0–0 7.Be2 Nbd7 
       (7...a6 8.Nc3=) 
    8.0–0= Qc7 9.Qe1 e5 Black gets in control 10.Ne5 Ne5 
       (worse is 10...Be5 11.fe5 (worse is 11.Be5 Ne5 12.fe5 Qe5+=) 11...Ne5 12.Qg3+/–) 
    11.fe5 Be5 12.Be5 Qe5 13.Nc3 
       (13.c3 Bf5+=) 
       (13...d4 14.ed4 cd4 15.Na4–+) 
       (better is 14.Rc1!?+=) 
    14...d4–/+ 15.ed4 cd4 16.Na4 Bc2 17.Qc2 Qe2 18.Rf5 
       (18.Nc5 Rac8 19.a4 Qe7–+) 
       (18...d3 19.Qd1–+) 
    19...Rac8–+ 20.Qd1 
       (20.Qd3 Qd3 21.Nd3 Rc2–+) 
    20...Rfe8 21.Rb1 
       (21.a3 h5–+) 
       (21...Qd1!? 22.Rd1 Rc2 23.Nd3–+) 
    22.Rf3 Rc2 23.d3?? 
       (better is 23.Rf2 Qg6 24.a3–+) 
    23...Qe2 24.Qe2 Ree2 
       (24...Rce2?! 25.Rf2–+) 
    25.Nd1 Rg2 26.Kf1 
    26...Ng4 27.Nf2 Rcf2 
       (27...Ne3 28.Re3 Rgf2 29.Kg1 de3 30.h3 Rg2 31.Kh1 Rgd2 32.a4 Rh2 
       33.Kg1 Rcg2 34.Kf1 e2 35.Ke1 Rh1 36.Kd2 e1Q) 
    28.Rf2 Rf2 
       (28...Rf2 29.Ke1 Rh2–+; 
       28...Nf2 29.Re1 Kf8 30.Kg2 Nd3 31.Re4=) 
    (19) Frenzel,Lothar – Schueppel,Ralf
    BdF, 2003
    1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.d4 Bd6 6.e3 Nb6 
       (6...a5 7.b5=) 
       (7.Bd3 0–0=) 
    7...Na4 8.Qc1 a5 
       (8...0–0 9.c4=) 
       (9.b5 0–0=) 
       (9...Bd7 10.Bd3=) 
    10.Bd3 Bd7 
       (10...ab4 11.ab4 Bd7 12.0–0=) 
    11.0–0 b6 
       (11...ab4 12.ab4 Qe7 13.Qc2=) 
    12.e4 de4 13.Ne4 Bc6 14.Re1 
       (14.Ned2 b5+=) 
       (14...Nb2 15.Qb2 Be4 16.Be4 ab4 17.ab4 Ne4 18.Re4=) 
    15.Be4 Be4 16.Re4 ab4 
       (16...b5 17.Qc2+=) 
    17.ab4= Qf6 18.Qc2 
       (18.Ne5 c5=) 
    18...Qf5+= 19.Rae1 b5 20.Bc1 Nb6 21.Qe2 
       (21.Nh4 Qd5+=) 
    21...Ra1 22.Ne5 
       (22.Nd2 Rfa8–/+) 
    22...Nd5–/+ 23.Qd3 
       (23.Bd2 Ra2 24.Qd3 Rfa8–/+) 
    23...Ra2 Threatening mate: Qxf2 24.Bd2 Rfa8 25.g4 Qf6 26.R4e2 
       (26.R1e2 c6–/+) 
       (26...Qh4 27.g5–/+) 
    27.h3 R8a3 28.Qb5 Be5 
       (28...Nc3 29.Qe8 Kh7 30.Bc3 Be5 31.de5=) 
    29.de5 Qf3 30.Kh2?? 
       (better is 30.g5 hg5 31.Qc4 Qh3 32.Qe4–+) 
       (30...Nc3?! 31.Bc3 Qc3 32.Kg1 Qh3 33.Qc4 Re2 34.Qe2–+) 
    31.Bc3 Deflection from f4 
       (31.Kg1 Rd3 32.Qe8 Kh7 33.Qc6 Rad2 34.Rd2 Rd2 35.Rf1 Qh3 36.Qc4–+) 
    Nf4 Theme: Double Attack 
       (31...Nf4 32.Qc6 Qh3 33.Kg1 Re2 34.Ra1 Re5 35.Qf3 Qf3 36.Ra8 Qa8 
       37.f3 Qf3 38.Be5 Qg2) 
    (20) Cossmann,Robert – Frenzel,Lothar
    corr SOK–91–71, 1991
    1.b4 d5 2.Bb2 Bf5 3.e3 e6 4.a3 Nf6 5.Nf3 Be7 6.c4 c6 7.Qb3 
       (7.cd5 ed5 8.Be2 a5=) 
    7...0–0+= 8.Nc3 Nbd7 9.d4 Ne4 10.Be2 Ndf6 
       (10...Nc3 11.Qc3 Nb6 12.cd5 Nd5 13.Qc4+=) 
    11.0–0= Bg4 12.Rfd1 Nc3 13.Bc3 dc4 14.Qc4 Nd5 15.Bb2 Bf5 16.Ne5 f6 17.Nd3 
    Nb6 18.Qb3 Qd6 
       (18...Qd5!? 19.Qd5 cd5=) 
    19.Nc5+= Rab8 
       (better is 19...Qd5!? 20.Qd5 cd5+=) 
    20.e4+– Bg6 21.Ne6 Bf7 22.d5 Rfc8 23.Bf3 
       (23.Rac1 cd5 24.Nc5 de4+=) 
    23...cd5+/– 24.ed5 Nc4 25.Bc3 b5 26.Re1 Nb6 
    27.Bd4+– Rc4 28.Bc5 Qd7 29.Be7 
       (29.Be2 Rc5 30.bc5 Qd5+–) 
    29...Qe7 30.Ng7! Qd7 
       (30...Kg7 31.Re7) 
    31.Ne6 Nd5?? 
    32.Bd5 Qd5 
    33.Qg3 Kh8 
       (33...Bg6 34.Qb8 Rc8 35.Qc8 Qd8 36.Qd8 Kf7 37.Qf8) 
    34.Qg7 1–0
    (21) Fritz,Harry – Frenzel,Lothar
    corr, 2000
    1.b4 d5 2.Bb2 Bf5 3.e3 e6 4.Nf3 Nf6 5.b5 Be7 6.Be2 0–0 7.0–0 Nbd7 8.Nh4 
    Bg6 9.Ng6 fg6 10.d4 c5 11.c4 Nb6 12.Nd2 Qc7 13.Rc1 Bd6 
       (13...Rac8 14.cd5 Nbd5 15.Nb3+/–) 
    14.dc5 Bh2 15.Kh1 Nc4 16.Nc4 Ne4 17.Nd6 Bd6 18.cd6 Qd6 19.Qd4 The mate 
    threat is Qxg7 19...Qe7 20.Kg1 Rf7 21.Bd3 Nf6 22.a4 b6 23.Rc6 Raf8 
    24.Qh4 e5 25.Qg5 e4 26.Bb1 Rd8 27.Rfc1 Rff8 
       (27...Qb4 28.Bf6 gf6 29.Rf6+–) 
    28.Rc7 Rd7 
       (28...Qb4 29.Qe5 Rde8+–) 
    29.Bf6 Rf6 30.Ba2 Kf8 
       (30...Qd6 31.Rd7 Qd7 32.Qd5 Qd5 33.Bd5 Kf8+–) 
    31.Rc8 Rd8 32.Qd5 
       (32.Qd5 Ke8 33.R1c4 Rfd6 34.Qg8 Qf8 35.Re4 Kd7 36.Be6 Ke7 37.Rc7 Kf6 
       38.Rf7 Kg5 39.Rg4 Kh6 40.Rh4 Kg5 41.f4 Kh4 42.Qh7 Kg3 43.Qh3) 
    (22) Trokenheim,Marek – Frenzel,Lothar
    corr KGP/V, 1993
    1.b4 d5 2.Bb2 Bf5 3.e3 e6 4.Nf3= Nf6 5.c4 c6 6.c5 Be7 
       (6...b6 7.Nd4+=) 
    7.Be2= 0–0 8.0–0 Nbd7 
       (8...b6 9.Nd4=) 
       (9.Nd4 Bg6=) 
       (9...b6 10.Nh4=) 
    10.Nc3 Re8 11.Bd3 
       (11.a4 Qc7=) 
       (11...Bd3 12.Qd3 b6 13.Rfb1=) 
    12.Qc2 Ndf6 13.a4 a6 
       (13...Qc7 14.Ne5=) 
    14.Ne5+= Qc8 
       (14...Nc3 15.Bf5 ef5 16.Bc3+=) 
    15.Ne4 Ne4 
       (15...Be4 16.Be4 Ne4 17.f3+=) 
    16.g4 Bh7 17.Nf7! Kf7 18.f3 Nf6 
       (18...e5 19.fe4 (worse is 19.Be4 de4 20.Qc4 Qe6–/+) 19...Kg8 20.h3+/–) 
    19.Bh7 Nh7 20.Qh7 Bf6 
       (20...Rh8 21.Qd3+/–) 
    21.f4 Rh8 22.Qd3 g5 
    23.e4+– Kg7 
       (23...gf4 24.Rf4 Kg7 25.Raf1+–) 
    24.e5 Be7 
       (24...Bd8 25.f5+–) 
    25.f5 ef5 
       (25...Bf8 26.Bc1+–) 
    26.gf5 Bd8 
       (26...Kf7 27.Rae1 Bf8 28.Qf3+–) 
    27.Rae1 Kf8 
       (27...Kf7 28.Qh3 h5 29.e6 Kf6 30.Bc1+–) 
    28.f6 Qg4 29.Kh1 Qh5 30.Qf5 Bc7 31.h3 Qe8 
       (31...Ke8 32.e6 Bd8 33.e7 Be7 34.Re7 Kf8 35.Qe6+–) 
    32.e6 Bf4 
    33.Rf4! gf4 34.e7 
       (34.e7 Qe7 35.Re7 b6 36.Qe6 Rh7 37.Rh7 bc5 38.Qf7) 
    (23) Nebe,Lutz – Frenzel,Lothar
    corr SOK–89–40, 1989
    1.b4 d5 2.Bb2 Bf5 3.e3 e6 4.Nf3 Nf6 5.c4 Nc6 6.a3+= dc4 7.Bc4 Bd3 8.Qb3 
    Bc4 9.Qc4 Bd6 10.d3 0–0 11.Nbd2 
       (11.0–0 a5 12.b5 Nb8+=) 
       (11...a5 12.b5 Nb8 13.0–0=) 
    12.0–0= h6 13.e4 e5 14.Nh4 
       (14.d4 ed4 15.Nd4 Nd4 16.Bd4 Bf4+=) 
       (14...a5 15.b5 Nb8 16.d4 ed4 17.Qd4+=) 
       (15.d4 ed4 16.Nhf3 c5 17.bc5 b5 18.Qd4 Bf4+–) 
    15...b5 16.Qc2 Rc8 17.Nb3 Nd7 18.d4 ed4 19.Bd4 
       (worse is 19.Nd4 c5 20.bc5 Nc5+=) 
    19...Ne5 20.Rfd1 N7c6 21.Nf5 Qg5 
       (21...Nd4 22.Rd4 Qg5 
         A) worse is 23.Nd6 Nf3 (23...cd6?! 24.Qd1=) 24.Kh1 Nd4 25.Nd4 cd6–+;
         B) 23.Rd5=) 
    22.Be3 Qg6 23.f4 
       (23.Nc5 Bc5 24.Bc5 Rfd8+=) 
    23...Nc4= 24.Bc5 Rfe8 25.e5 
       (worse is 25.Nd6 cd6 26.f5 Qg3–/+) 
       (25...Bc5 26.Nc5 Rcd8 27.Rd8 Rd8 28.a4=) 
       (26.Bf8 Rf8 27.Nc5 Rfd8+=) 
    26...Qe6 27.Bf8 
       (27.Rad1 Bd6 28.Nd6 cd6 29.R7d6 Nd6 30.Rd6 Qc4+=) 
       (27...Qd7 28.Bg7 Ne3 29.Ne3 Kg7 30.Nf5 Kh8 31.Nh6 Qe6+/–) 
    28.Nc5+= Qg6 29.g4 
       (29.Rad1 Na3 30.Qd3 Nc4=) 
       (29...a5 30.ba5 N6a5 31.a4+=) 
       (30.Nd4 Rcd8+/–) 
    30...h5 31.Qd3 hg4 32.Re7 
       (32.Ne7 Qd3 33.Rd3 Re7 34.hg4 g5 35.fg5 Ne5=) 
    32...Re7= 33.Rg1? 
       (33.Ne7 Qd3 34.Nd3 Ke7 35.hg4 Rd8=) 
       (33...g3 34.Rg3 Qc6 35.Ne7 Ke7 36.Rg7 Rf8+/–) 
    34.Rg4= g6 
    35.Rh4+/– Do you see the mate threat? 35...gf5 36.Rh8 Kg7 37.Rc8 Nb6 
       (37...Qg6 38.Qd8 Qh7 39.Qe7 Qh3 40.Kh3 Ne5 41.Ne6 Kh6 42.Rh8 Kg6 
    38.Rd8 Nc4 39.Qf5 Re8?? 
       (better is 39...Qh6+–) 
    40.Qf6! Qf6 41.ef6 
       (41.ef6 Kf6 42.Re8 Na3 43.Na6+–) 
    (24) Martello,Juan – Frenzel,Lothar
    corr 3GMM–37, 1996
    1.b4 d5 2.Bb2 Bf5 3.e3 e6 4.Nf3 Nf6 5.c4 Bb4 6.Qa4= Nc6 7.Nd4 Qd6 
       (7...Rb8 8.Nf5 ef5 9.cd5 Qd5 10.Bf6 gf6 11.a3=) 
       (8.cd5 Nd5 9.Nf5 ef5+=) 
    8...bc6+/– 9.a3 Bc5 10.d4 Bb6 11.c5 Bc5 12.dc5 Qc5 13.Nd2 Qd6 
       (13...Qc2!? 14.Qc2 Bc2 15.Rc1+/–) 
    14.Rc1 0–0 15.Qc6 
       (15.Rc6 Qd7+–) 
       (better is 15...Rfb8 16.Bb5 Qe7+–) 
    16.Ne4 de4 
       (16...Be4 17.f3 Qc6 18.Rc6+–) 
       (17.Qc3 f6 18.Qc7 Qc7 19.Rc7 Rfc8+–) 
       (17...Qc7 18.Rc7 Rfc8 19.Rc8 Rc8 20.Bd4+–) 
    18.Qd6 Rd6 19.g4 Bg4 20.Rg1 h5 21.h3 Bf3 22.Rg7 Kf8 23.Rh7 Rad8 
    Threatening mate... how? 24.Rh8 
       (24.Be2 Be2 25.Bf6 Rd1 26.Rd1 Rd1 27.Ke2 Rg1+–) 
    24...Ke7 25.Rd8 Kd8 
       (25...Rd8 26.Rc7 Kd6 27.Rf7 a5+–) 
    26.Bf6 Ke8 
       (26...Kd7 27.Bb5 Rc6 28.Rc6 Bg2+–) 
       (27.Bb5 Rc6 28.Bc6 Kf8 29.Be4 Ke8 30.Bf3 Kd7 31.Rd1 Kc7 32.Bd8 Kb8 
       33.Ba5 a6 34.Rd8 Ka7 35.Ra8) 
    (25) Diener,Rudolf – Frenzel,Lothar
    corr SOK–88–25, 1988
    1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.c4 e6+= 5.Qa4 c6 6.Nf3 
       (6.c5 Nbd7+=) 
       (6...dc4 7.b5–/+ (7.Bc4? b5 8.Bb5 cb5 9.Qb5 Nbd7–+)) 
       (7.Qb3 dc4 8.Bc4 Be4+=) 
       (7...dc4 8.b5 Nb6 9.Qa5–/+) 
    8.Qb3 dc4 9.Bc4 Be7 
       (9...Nc4 10.Qc4 Bd3 11.Qb3–/+) 
    10.Be2+= 0–0 11.Nh4 
       (11.d3 Bg4+= (11...Bd3? 12.Rd1+–)) 
    11...Bd3–/+ 12.g3 
       (better is 12...Nc4! 13.Nf3 e5–/+) 
    13.Ne4+= Ne4 Attacks the backward pawn on d2 14.Nf3 
       (14.d3 Nf6=) 
       (14...Qd5 15.Qd5 cd5 16.a3+=) 
    15.a3 Ndf6 
       (15...a5 16.Qc2 f5 17.Nd4=) 
    16.d3 Nd6 17.e4 White fights for the Initiative 17...Nfe8 
       (17...Nd7 18.0–0=) 
    18.0–0 Nb5 19.Rfd1 a5 
       (19...Nf6 20.a4 Nc7 21.Bf6 Bf6 22.d4=) 
    20.a4 Nbd6 21.ba5 Ra5 
    22.e5+– Nf5 
       (22...Nc8 23.Qb7 Qb6 24.Qb6 Nb6 25.Nd4 Ra4 26.Nc6+–) 
    23.Qb7 c5 
       (23...Nc7 24.Qc6 Nd5 25.Rdc1+–) 
    24.Bc3 Ra8 25.Qe4 
       (25.d4 Rb8 26.Qe4 Qc8+–) 
    26.g4 Nfg7 27.d4 Qc8 28.Bb5 
       (28.Rdc1 Nc7+–) 
    28...Nc7 29.Bc6 
       (29.dc5!? Bc5 30.Bd7+–) 
    29...Nd5+/– 30.Bd5 ed5 Black gets deadly initiative 31.Qf4 c4 32.h3 
       (32.a5 f6 33.Qg3 Qe6+/–) 
    32...Ne6 33.Qh6 
       (33.Qg3 f5+=) 
    33...f5 34.Kg2?? 
       (better is 34.ef6 Bf6 35.Qe3+=) 
    34...fg4–+ 35.hg4 Nf4 36.Kg3 
       (36.Kf1 Qg4 37.Qh1 Nh5–+) 
       (36...Ne2 37.Kg2 Nc3–+) 
    (26) Fischer,M – Frenzel,Lothar
    corr SOK–87–16, 1987
    1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.b5 c5 6.c4 dc4 7.Bc4 Nbd7 
    (Ruecktritt). Orang–Utan 9/1989. 0–1
    (27) Woschkat,Karl_Heinz – Frenzel,Lothar
    corr SOK–87–16, 1988
    1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.b5 c5 6.Nc3 
       (6.Be2 Bd6=) 
    6...Bd6+= 7.a4 0–0 8.d4 c4 9.Be2 Qc7 
       (9...Qa5 10.0–0–/+) 
    10.0–0 Ng4 Will h2 fall? 11.g3 Nd7 12.Nh4 Ndf6 
    13.Nf5+= ef5 14.Bf3 Qd7 
       (14...Rfd8 15.h3 Nh6 16.Nd5 Nd5 17.Bd5+/–) 
       (15.h3!? Nh6 16.Nd5+/–) 
    15...Nd5= 16.Bd5 Bg3 17.Bf7 
       (17.hg3 Qd5) 
    17...Qf7 The mate threat is Qh5 18.hg3 
       (18.fg3? Ne3 19.Qf3 Nf1 (19...Nc2?! 20.Rac1 Nb4 21.Ba3+=) 20.Rf1 
    18...Qh5 Threatening mate: Qh2 19.Kg2 Qh2 20.Kf3 Rad8 21.Bc3 f4 
    Threatening mate... how? 22.Kg4?? 
       (22.ef4 Qh3 23.Re1–+) 
       (22...h5 23.Kf3 fg3 24.Ke4 Qh3 25.f4 Qg2 26.Rf3 Rfe8 27.Kf5 Rd5 
       28.Kg6 Re6) 
    (28) Borrmann,Fritz – Frenzel,Lothar
    corr SOK–90–56, 1990
    1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 dc4–/+ 6.Bc4 Bb4 7.Qa4 Nc6 8.Bb5 
    Qd6 9.Nd4 
       (9.a3 Bc5=) 
    9...Be4 10.f3 Bb1 11.Rb1 0–0 12.Bc6 bc6 13.Qc6 Rab8 14.Ke2 
       (14.Qd6 cd6 15.Nc6 Rb6 16.Ne7 Kh8+=) 
       (14...Qd8 15.a3 Bd6 16.Qa6+=) 
    15.Qd6= cd6 
       (15...Bd6 16.Rhc1=) 
    16.Rhc1 Rfb8? 
       (16...Nd5 17.a3 Bc5 18.Kd3=) 
       (17.Nc6 Bd2 18.Rc2 Bb4+/–) 
       (17...Nd5 18.Bb4 Nb4 19.Rc7 Na2 20.Rb6 ab6 21.Nb5=) 
    18.Bb4 ab4 
       (worse is 18...Rb4 19.Rb4 ab4 20.Nc6+/–) 
    19.Nc6 R8b7 20.Rb4 Rc7?? 
       (20...Rb4 21.Nb4) 
       (21.Rb6 h6 22.a4+–) 
    (29) Bendig,Frank – Frenzel,Lothar
    corr SOK–92–83, 1992
    1.b4 d5 2.Bb2 Bf5 3.g3 e6+= 4.a3 Nf6 5.Bg2 Be7 6.d3 Nbd7 7.Nd2 0–0 8.Ngf3 
       (8...c5 9.bc5 Nc5 10.0–0+=) 
    9.0–0 Rc8 
       (9...c5 10.bc5 Bc5 11.c4=) 
    10.c4 c5 11.Qa4 cb4 12.ab4 a6 13.Rfc1 dc4 14.dc4 
       (14.Rc4 Rc4 15.dc4 e5=) 
       (14...Nb6!? 15.Qa5 Qc7+=) 
    15.Rd1 Rc6? 
       (15...Nef6 16.c5 Qc7 17.Nd4+=) 
       (16.Nd4 Nb6 17.Nc6 Na4 18.Nd8 Nb2 19.Nb7 (19.Be4?! Rd8 20.Bf5 Nd1 
       21.Rd1 ef5=) 19...Nd1 20.Be4+/– (20.Rd1?! Nc3 21.Ra1 Bb4=; 20.Ne4 Be4 
       21.Be4 Nc3+/–)) 
    16...Be4+= 17.Ne5 b5 18.Nc6 
       (18.Be4?! ba4 19.Nc6 Qe8+=) 
       (18...ba4?? 19.Nd8 (19.Be4?! Qe8+=) 19...Bg2 20.Rd7 Rd8 21.Rd8 (
       21.Kg2?! Rd7 22.Ra4 Rd2+/–) 21...Bd8 22.Kg2+–) 
       (19.Bc6?! ba4 20.Rd7 Qb6=) 
    19...Bg2 20.Qb5 Bd5 
       (20...Be4 21.Rd7 (worse is 21.Qd7 Qd7 22.Rd7 Bb4+–) 21...Qe8 22.Raa7+–) 
    21.cd5 e5 22.Ra7 Nf6 23.Be5 Re8 
       (23...Bd6 24.Bd4+–) 
    24.d6 Bf8 
       (24...Ne4 25.Rd7 Qc8 26.de7 Nf2 27.Rd8+–) 
       (25.Qa5 Qa5 26.Ra5 Nd7+–) 
       (25...Re5 26.Qe5 h5+–) 
       (26.Bc7 Qd7 27.Rd7 Nd7 28.Qd7+–) 
    (30) Dubleumortier,Christian – Frenzel,Lothar
    corr 3GMM–37, 1996
    1.b4 d5 2.Bb2 Bf5 3.Nf3 e6 4.b5 
       (4.e3 Nf6 (4...Bb4?? 5.Bg7 Nd7 6.Bh8+–) 5.a3 Bd6=) 
    4...Nf6+= 5.g3 
       (5.Nd4 Be4+=) 
       (5...Bc5 6.Bg2–/+) 
    6.Bg2 0–0 7.0–0 a6 8.a4 c6 9.Na3 
       (9.Nd4 Be4+=) 
    9...Qe7 10.Qc1 
       (10.bc6 Nc6 11.c4 Rfc8+=) 
       (10...cb5 11.Nd4 Be4 12.f3–/+) 
    11...cb5–/+ 12.ab5 ab5 
       (12...Bd3 13.Re1–/+) 
       (13.Nb5 Rc2 14.Ra8 Rc1 15.Rc1 Bg3 16.fg3+– (worse is 16.hg3 Ne8 17.Rb8 f6+– 
    13...Bd3–/+ 14.Re1 b4 15.Nab5 Na6 
       (15...Ra1!? 16.Ba1 Be5+=) 
    16.Nd6+= Qd6 17.Bf1 
       (17.Qb1!? Be4 18.f3+=) 
    17...Bf1–/+ 18.Kf1 
       (18.Rf1 e5 19.Nf5 Qe6–/+) 
       (18...e5 19.Nf3 e4 20.Nd4–+) 
    19.f4–/+ Ne4 20.Qd1 Nd6 
       (20...Nc7 21.Kg2–/+) 
    21.Qg4 g6 
       (21...Nc4 22.Nb3 Qf8 23.Reb1–/+) 
    22.Kg2+= Ne4 23.Re2 Qe7 24.Qf3 
       (24.h3 Nac5+=) 
    24...Nac5–/+ 25.Ra8 Ra8 26.d3 
       (26.h3 Ra2 27.Bc1 Qf6–/+) 
    26...Ra2 27.de4 
       (27.Bc1 Nc3 28.Rf2 Qf6–/+) 
       (27...Rb2?! 28.ed5 ed5 29.Qd5=) 
    28.Qg4 Rb2 29.Rf2 
       (29.Rd2 b3–+) 
    29...f5 30.Qd1 Ra2 31.Qb1 Ra4 32.Qb2 e5 33.Nb3 Ra3 34.Nc5 Qc5 35.fe5 Re3 
    36.Qa2 Kg7 37.Qe6 Rc3 38.Qf6 Kg8 39.Rd2 The mate threat is Rd8 
    39...Rc2 40.Qd8 ฝ–ฝ
    (31) Frenzel,Lothar (2075) – Guenther,Michael (2300)
    BdF HS–034, 2008
    1.b4 d6 2.Bb2 e5 3.e3 Nf6 4.Nf3 Be7 5.Be2 0–0 6.0–0 e4 7.Nd4 c5 8.bc5 dc5 
    9.Nb3 Nc6 10.f3N 
       (10.d3 Bf5 11.Nc3 ed3 12.Bd3 Bd3 13.cd3 b6 14.f3 Nd5 15.Nd5 Qd5 16.d4 
       cd4 17.Nd4 Bc5 18.Qb3 Qb3 19.ab3 Nb4 20.Rfd1 Rfe8 21.Kf2 a5 22.Rd2 Nd5 
       23.e4 Nf4 24.Kf1 Red8 Bedbur,H–Pagni,C/corr th 1990/0–1 (32)) 
    10...Be6 11.fe4 Ne4 12.d3 Nd6 13.N1d2 
       (13.Bf3 c4 14.Nd4 Nd4 15.Bd4 cd3–/+) 
    13...Nf5 14.Rf3 Bg5 15.Nf1 Qe7 16.Nbd2 Nd6 17.c4 Rad8 18.Qe1 Rfe8 19.Nb3 
    b6 20.Qc3 f6 21.Rf2 Bf7 22.Bc1 a5 23.a4 Nb4 24.e4 
       (24.Bd2 Bc4 25.dc4 Ne4–/+) 
    24...Bc1 25.Qc1 f5 26.Nbd2 
       (26.ef5 Nf5 27.Qc3 Bg6–/+) 
    26...fe4 27.de4 Ne4 28.Ne4 Qe4 29.Ng3 Qe5 30.Ra3 Bg6 31.Raf3 Nd3 32.Bd3 
    Rd3 33.Qf1 Rf3 34.Rf3 Qd4 35.Kh1 Qd7 36.h4 h5 37.Rf4 Qa4 38.Kh2 Qd7 
    39.Qf3 a4 40.Nh5 Qd6 41.Ng7 
       (41.Ng3 a3! 42.Qd5 Qd5 43.cd5 b5–+) 
    41...Kg7 42.Qg3 Qe5 43.Rg4 
       (43.Qf2 a3 44.g3 Qe2 45.Qe2 Re2 46.Kh3 a2–+) 
    43...Qg3 44.Rg3 
       (44.Kg3?? a3 45.h5 a2 46.Rg6 Kh7–+) 
       (better is 44...Re4!? 45.h5 Rh4 46.Kg1 Rh5 47.Ra3–+) 
    45.h5 a3 46.Rg6 Kh7 
       (46...Kh7 47.Rd6 a2–+) 
    (32) Frenzel,Lothar (2075) – Rulfs,Ernst_August (2320), 2009
    1.b4 e5 2.a3 d5 3.e3 Bd6 4.c4 c6 5.Bb2 Ne7 6.Nf3 Nd7 7.Nc3 a6N 8.Be2 
       (8.c5 Bc7 (8...Bb8 9.Be2 Nf5 10.e4 de4 11.Ne4 Nh4 12.0–0 Nf3 13.Bf3 
       f5 14.Nc3 0–0+=) 9.Be2 Nf6 (9...Ng6 10.0–0 0–0 11.Rb1 Qf6 
       12.Qc2 a5 13.b5 Nh4 14.Nh4 Qh4=; 9...Nf5 10.e4 de4 11.Ne4 
       Nh4 12.0–0 Nf3 13.Bf3 f5 14.Nc3 0–0=; 9...0–0 10.0–0 Ng6 
       11.d3 Qf6 12.Qc2 Rd8 13.Rfb1 a5 14.h3 Re8=; 9...a5 10.0–0 
       ab4 11.ab4 Ra1 12.Qa1 0–0 13.d3 Re8 14.Qa7 Nf5=; 9...Nf8 
       10.0–0 Ne6 11.d3 0–0 12.Re1 Ng6 13.Qc2 Qf6 14.Nd2 Re8=) 
       10.d3 0–0 11.0–0 Re8 12.Re1 Ng6 13.Qc2 Qe7 14.Rab1 a5=) 
       (8...e4 9.Nd4 Nf6 (9...Be5 10.cd5 cd5 11.d3 Nf6 12.de4 de4 13.Qc2 
       Bd4 14.ed4 Bf5=; 9...b5 10.cd5 cd5 11.d3 ed3 12.Bd3 Ne5 
       13.0–0 Nc4 14.Qc2 Qc7+=) 10.d3 ed3 11.Bd3 dc4 12.Bc4 Qc7 
       13.h3 0–0 14.0–0 Nf5=; 
         A) 9.Rc1 0–0 10.cd5 cd5 11.0–0 b5 12.d4 e4 13.Ne1 Nf6 14.Nc2 Bf5= 
         B) 9.d3 Bb7 (9...0–0 10.0–0 Re8 11.Rc1 Bb7 12.Re1 Rc8 13.Qb3 Rc7 
          14.d4 ed4=; 9...Rb8 10.cd5 cd5 11.0–0 0–0 12.Rc1 Re8 
          13.Qb3 Nf6 14.d4 e4=) 10.0–0 0–0 11.Rc1 Re8 12.cd5 cd5 
          13.d4 e4 14.Nd2 Nf5+=;
         C) 9.0–0 e4 (9...0–0 10.cd5 cd5 11.Rc1 Re8 12.Qb3 Bb7 13.d4 e4 
          14.Nd2 Rc8=; 9...Rb8 10.cd5 cd5 11.b5 e4 12.Nd4 Nc5 
          13.ba6 Ra8 14.Ncb5 Ba6=; 9...f6 10.Qb3 Bb7 11.Rfd1 e4 
          12.Nd4 Qb8 13.h3 f5 14.d3 Nf6+/–) 10.Nd4 c5 11.Nc2 Qc7 
          12.h3 cb4 13.ab4 dc4 14.Ne4 Bh2=;
         D) 9.cd5 cd5 10.0–0 0–0 11.Rc1 Re8 12.Qb3 Bb7 13.d4 e4 14.Nd2 Rc8= 
         A) 9.Bc4 Nb6 (9...0–0 10.Ne4 Bc7 11.0–0 b5 12.Bb3 a5 13.Qc2 a4 
          14.Ba2 Ra6+/–) 10.Bb3 Ng6 11.Ne4 f5 12.Nd6 Qd6 13.h4 h5 
          14.d4 e4+=;
         B) 9.Ne4 Bc7 (9...Bb8 10.Bc4 0–0 11.0–0 Nb6 12.Bb3 Bf5 13.Nc5 e4 
          14.Ne5 Ng6+=) 10.Bc4 0–0 11.0–0 Nb6 12.Bb3 Bf5 13.Nc5 e4 
          14.Nd4 Nd7+=) 
       (9.c5 Bb8 (9...Bc7 10.0–0 Ng6 11.d3 Qf6 12.Qd2 Re8 13.Qc2 a5 14.b5 
       Nh4=) 10.0–0 Re8 11.Qc2 Ng6 12.Rab1 e4 13.Nd4 Be5 14.Nd1 
       (9...b6 10.cd5 cd5 11.Rc1 b5 12.d4 e4 13.Nd2 Nf6 14.h3 Bc7=
       9...dc4 10.Ne4 Qc7 11.Bc4 a5 12.b5 c5 13.Nfg5 Nf5 14.Qh5 Nh6+/–
       9...a5 10.c5 Bc7 11.Qc2 Ng6 12.d3 Qf6 13.b5 Re8 14.b6 Bb8= 
       (10.c5 Bc7 11.d4 e4 12.Nd2 Nf5 13.h3 Qf6 14.Qc2 Qg6=) 
       (10...b6 11.Rc1 Bb7 12.cd5 cd5 13.Re1 Nf5 14.Nd5 Bd5=) 
       (11.c5 Bc7= 12.a4 Be6 13.Qd2 Ng6 14.b5 Nd7=) 
    11...Ng6 Black prepares the advance e4 
       (11...b6 12.Na4 Ng6 13.c5 bc5 14.Nc5 a5=) 
       (12.c5 Bc7 13.Qc2 Qe7 14.Rfd1 Be6=) 
       (12...b6 13.Rfd1= Be6 14.d4 dc4=; 
       12...Bc7 13.Rac1 Bf5 14.cd5 cd5=) 
    13.de4 de4 14.Nd2 
       (14.Nd4 Bb8=) 
       (14...Bb8 15.Rfd1 Qc7 16.Nf1=; 
       (15.Rfd1 Bf5 16.c5 Be5 17.Nce4 Be6+=) 
       (15...Be6 16.Qc2 Bc7=) 
       (better is 16.Kg2 Nh4 17.Kg1+=) 
    16...Nh4 17.Rfd1 Qd7 18.Nce4?? 
       (18.f3 ef3 19.Bf1–+) 
       (18...Ne4?! 19.Ne4 Be4 20.Qc3–/+) 
       (19.Ne4 Ne4 (19...Re4?! 20.Kf1–+) 20.Bh5 g6–+) 
       (better is 19...Bg2!? 20.e4 Nf3 21.Qf3 Bf3 22.Bf3 Qd6 23.e5 Re5 24.Be5 Qe5 
       (20.Bg4 Qg4 21.Rg1 Nf3 22.Nf3 Qh5 23.Kg2 Bf3 24.Kf1 Qb5 25.Qc4 Qc4 
       26.Ke1 Qe2) 
       (20...Ne5 21.Qe6 Qe6 22.Bc3 Qh3 23.Bf3 Nhf3 24.Nf3 Nf3) 
    (33) Frenzel,Lothar – Trokenheim,Marek
    corr SOK–92–83, 1992
    1.b4 e5 2.a3 d5+= 3.Bb2 f6 4.e3 Be6 5.Nf3 Nd7 6.Be2 c5 7.c3 
       (7.bc5!? Bc5 8.d4=) 
    7...e4+= 8.Ng1 Nh6 9.d3 ed3 10.Bd3 Ne5 11.Be2 c4 12.Nf3 Bd6 13.Nd4 Bg4 
    14.0–0 Be2 15.Qe2 Nd3 16.Ra2 
       (16.Qh5 Ke7 17.Bc1 Qc7=) 
    16...Qe7+= 17.Qh5 Qf7 18.Qf7 Kf7 19.Nb5 Nf5 Black gets the initiative 
    20.g4 a6 21.Nd6 Nd6 22.a4 
       (22.Rd1 Ne4 23.f3 Nef2–/+) 
    22...h5 23.gh5 Rh5 24.Nd2 Rah8 25.Nf3 g5 26.Kg2 
       (better is 26.Rd1–+) 
    26...g4 27.Nd2 
       (27.Nd4 Ne4 28.Rh1 Nef2 29.Ba3 Nh1 30.Kh1–+) 
    27...Rh2 28.Kg1 Nf5 
       (28...Nf5 29.Nc4 Rh1 30.Kg2 R8h2) 
    (34) Frenzel,Lothar – Martello,Juan
    corr 3GMM–37, 1996
    1.b4 e5 2.a3 d5 3.Bb2 f6 4.e3 Bf5 5.d4 ed4 
       (5...Nd7 6.c4=) 
    6.Bd4 a5 7.b5 Bd6 8.Nf3 Ne7 9.c4 
       (9.Bd3 0–0=) 
       (9...c5 10.bc6 Nbc6 11.c5=) 
       (10.cd5 Nd5 11.Bd3 Bd3 12.Qd3 Qe7=) 
    10...0–0 11.0–0 
       (11.Nc3 Be6+=) 
       (11...c5 12.bc6 bc6 13.cd5 Nd5 14.Nc3=) 
    12.Nbd2 Qe8 
       (12...c5 13.bc6 Nc6 14.cd5 Bd5 15.Bc4+=) 
    13.Re1 Qg6 14.cd5 Bd5 15.e4 Be6 
       (15...Be4?? 16.Ne4 Ne5 17.Nd6 cd6 18.Bb6+–) 
       (16.Bc4 Qf7 17.Qb3 Bc4 18.Nc4 Ne5 19.Be5 Be5+/–) 
       (16...Ne5 17.Qc2=) 
    17.Qc2 c6 
       (17...c5 18.bc6 Nc6 19.Bc4 Bc4 20.Qc4 Kh8 21.Rad1=) 
    18.Bd3 White prepares the advance e5 
       (18.Bc4 Bc4 19.Qc4 Qf7+=) 
    18...Rfc8= 19.e5 
       (19.Bc4 Bc4 20.Qc4 Qf7+=) 
    19...f5 20.Qb2 c5 
       (20...Nd5 21.Rac1=) 
    21.Bc3+= Nd5 22.Bb4 ab4 23.Nc4 
    23...Nf4–/+ Do you see the mate threat? 24.Bf1 Ng2! 25.Bg2 A 
    deflection 25...Bc4 26.Qd2 Rd8 27.Qf4 Bb3 
    28.Nh4= Qe6 29.Qf5 Nf8 
       (29...Rab8 30.a5 Qc4 31.Qh3+=) 
    30.Qe6 Ne6 31.Bb7 
       (31.a5 Bd5 32.a6 ba6 33.ba6 Bg2 34.Kg2 Rd7+=) 
    (35) Frenzel,Lothar – Rohde,Friedhelm
    corr 3GMM–28, 1995
    1.b4 e5 2.a3 d5+= 3.Bb2 Nf6 4.Be5+= a6 
       (4...Nc6 5.Nf3 Ne5 6.Ne5 Bd6=) 
       (5.Nc3 d4 6.Bf6 Qf6+=) 
       (5...Nfd7 6.Bd4 ab5 7.e3=) 
       (6.e3 Bd6 7.Bd6 Qd6+=) 
       (6...ab5 7.e3=) 
       (better is 7...ab5!? 8.e3 c5=) 
    8.bc6+= bc6 9.e3 Bd6 10.d3 
       (10.Be2 c5 11.Bc3 0–0+=) 
    10...0–0 11.Be2 Qc7 
       (11...c5 12.Bc3=) 
       (12.0–0 c5 13.Bc3 Rfb8=) 
    12...c5= 13.Bb2 Rab8 14.Rb1 c4 
    15.dc4+/– dc4 16.c3 
       (16.Bc4 Bc4 17.Nc4 Qc4 18.Qd6 Qc2 19.0–0 Rb2 20.Rb2 Qb2 21.Qa6–+) 
    16...Bf5+= 17.e4 Ne4 18.Nc4 Bc5 
       (better is 18...Nc3 19.Qd6 Qd6 20.Nd6 Nb1 21.Bg7 Kg7 22.Nf5 Kf6–/+) 
       (19.Nd4 Nc3!? 20.Bc3 Rb1 (20...Bb1?! 21.0–0–+) 21.Nf5 Bf2 22.Kf2 
       Qf4 23.Bf3 Rd1 24.Ne7 Kh8 25.Rd1 Qc4–+) 
       (better is 19...Nc3 20.Bc3 Rb1–+) 
    20.Bd3= Ng4 Pawn f2, live or die! 21.Qe2 
       (21.Ne3 Ne3 22.fe3 Be3 23.Kh1–/+) 
       (21...Ngf2 22.Nd4 Nc3 (22...Nd3?! 23.Qd3 Nd6 24.Rf5 Nf5 25.Qf5 Bd4 
       26.cd4 Qc4 27.Qf2–+) 23.Bc3 Bd3 (23...Nd3?! 24.Rb8 Rb8 25.Ne3–/+) 
       24.Qf2 Bb1–+ (24...Bc4?! 25.Rb8 Rb8 26.Ra1–+)) 
       (22.Bf5 Nh3 23.Kh1 Nhf2 24.Rf2 Nf2 25.Kg1 Ng4 26.Kh1 Nf2 27.Kg1 Ng4 
       28.Kh1 Nf2=) 
    22...Bd3–+ 23.Qd3 Bf2 24.Kf1 Qc4! 25.Qc4 A deflection 25...Ne3 
    Theme: Double Attack 26.Kf2 Nc4 
       (26...Nc4 27.Nd2 Nd2–+) 
    (36) Frenzel,Lothar (2040) – Genzmann,Manfred (2495)
    Jubilee, 2007
    1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.e3 Nf6 5.c4 c6 6.Nf3 e4 7.c5N 
       (7.Ne5 Qe7 8.f4 ef3 9.Nf3 0–0 10.c5 Bc7 11.Be2 Bg4 12.0–0 Nbd7 13.Nc3 
       Rfe8 14.Qc2 h6 15.Nd1 Ne4 16.d3 Nef6 17.Nd4 Be2 18.Qe2 Ne5 19.Nf2 Rad8 
       20.e4 de4 21.de4 Ng6 Spiegel,U–Hasler,U/corr SOK–88–25 1988/1–0 (40)
         A) 7...0–0 8.cd5 cd5 9.Qb3 (9.Nc3 a5 10.ba5 Nc6 11.Ncb5 Be7 
          12.Bc3 Na5 13.Be2 Bd7 14.0–0 Qb6 15.Rb1 Rfc8 16.Nf5 Bf5 17.Nd4 Qd8 
          18.Nf5 Ba3 19.f3 Be7 20.fe4 de4 21.Rb5 b6 22.Qe1 Rc3 23.Qg3 g6 
          wiking–Odie_Spud/internet 2010/1–0 (31); 9.d3 a5 10.b5 Nbd7 
          11.de4 Ne4 12.Nc3 Ndf6 13.Ne4 Ne4 14.Nf3 a4 15.Bd3 Qa5 16.Kf1 Bd7 
          17.Kg1 Bb5 18.Be4 de4 19.Qd4 f6 20.Qd6 ef3 21.Qd5 Kh8 22.Qf3 Bc6 
          23.Qg3 Qd2 Schulz,H–Bonetti,S/TT–13 TSC 2004/ฝ–ฝ) 9...a6 
          10.Nc3 Nc6 11.Nd5 Nd5 12.Qd5 Nd4 13.Qd4 f6 14.Bc4 Kh8 15.Qe4 Bd7 
          16.Bd5 Re8 17.Qf3 Rc8 18.Bb7 Rc2 19.Bc3 a5 20.Be4 ab4 21.Bc2 bc3 
          22.dc3 ludice (1720)–branquinha731057 kurnik 2011/1–0 (65);
         B) 7...dc4 8.Bc4 0–0 9.Nc3 a5 10.ba5 Qa5 11.Qc2 Qc5 12.Na4 Qg5 
          13.Nb6 Qg2 14.0–0–0 Ra5 15.Bf7 Kf7 16.Qc4 Rd5 17.Nd5 cd5 18.Qb5 Bh2 
          19.Nc6 0–1 BigSky (2705)–duckbreath (2530)/ICC 1998) 
    7...ef3 8.cd6 fg2 9.Bg2 Qd6 10.Qf3 Nbd7 11.Qg3 Qg3 12.hg3 0–0 13.d3 Re8 
    14.Nd2 Ne5 15.Ke2 Bf5 16.Be5 Re5 17.Nf3 Bg4 18.Bh3 Re7 19.Bg4 Ng4 20.Rh4 
    f5 21.Rc1 g6 22.Nd4 a6 23.a4 Kg7 24.Rc2 1–0
    (37) Frenzel,Lothar – Dubleumortier,Christian
    corr 3GMM–37, 1996
    1.b4 e5 2.a3 d5+= 3.Bb2 Bd6 4.Nc3 Nf6 5.e3 c6 
       (5...Bg4 6.Be2 Be2 7.Nge2+=) 
       (6.Nf3 Bg4+=) 
       (6...0–0 7.Nf3+=) 
    7.Be2 a5 
       (7...Bd7 8.Nf3+=) 
    8.b5 Bf5 
       (8...0–0 9.Nf3+=) 
    9.Nf3 h6 
       (9...0–0 10.0–0+=) 
       (10.0–0 0–0=) 
    10...0–0 11.0–0 Nbd7 12.Nh4 
       (12.bc6 bc6 13.Rb1 Rab8+=) 
    12...Be6+= 13.f4 
       (13.Nf3 Rac8+=) 
    13...ef4 14.ef4 
       (14.bc6 bc6 15.ef4 d4–+) 
    14...d4–/+ 15.Nb1 Nd5 16.Qe1 
       (16.bc6 Ne3 17.Qe1 bc6 18.Qf2 Nf1 19.Bf1–+) 
    16...Ne3 17.f5 
       (17.Rf3 Nc2 18.Qg3 cb5–+ (18...Na1?! 19.Bd4 Nf6 20.Ba1–+)) 
       (17...Nc2 18.Qf2 Na1 19.Ba1–+) 
       (18.Bd4 Nf1 19.Kf1 c5–+) 
    18...Nf1 19.Kf1 Qe1 20.Ke1 Bf3 
       (20...Bh2 21.Bd5 Bg3 22.Ke2 cd5 23.Nf3 Rfe8 24.Kd1–+) 
    21.Nf3 c5 
       (21...Rae8 22.Kd2 Bf4 23.Kd1–+) 
       (22.c3 Rae8 23.Kd2 Ne5 24.cd4 Nf3 25.gf3 cd4–+) 
       (22...Rae8 23.Ne4–+) 
    23.c3 dc3 24.Bc3 Nd5 
       (24...Rfe8 25.Kf2 Ng4 26.Kg1–+) 
       (25.Rc1 Nf4 (25...Nc3?! 26.Rc3 Rfe8 27.Ne4–+) 26.Kd1 Nd3–+) 
    25...Rfe8 26.Kd2 Bf4 
       (26...Nc3 27.Nd6 Nd5 28.Nb7+=) 
    27.Kc2 b6 28.Bd2 Bd2 29.Kd2 Rad8 30.g3 Nb4 31.Ra3?? 
       (31...Re4 32.Rc3 Na2–+) 
    (38) Frenzel,Lothar – Ansorge,Werner
    BdF, 2004
    1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 f6 5.e3 Be6 6.d3 
       (6.Be2 a5+=) 
       (6...a5 7.b5+=) 
    7.Nbd2 c6 
       (7...a5 8.c3+=) 
    8.c4= a5 
       (8...Nd7 9.Be2=) 
       (9.c5 Bc7=) 
       (9...b5 10.Qb3+=) 
    10.Qb3 0–0 
       (10...ab4 11.ab4 Ra1 12.Ba1+=) 
    11.c5 Bc7 12.Be2 ab4 13.ab4 
       (worse is 13.Qb4 Ba5 14.Qb3 Nc5–+) 
    13...Ra1 14.Ba1 b6 15.Qc2 Qa8 16.0–0 Qb7 
       (16...Qa6 17.Rb1+=) 
    17.Bc3 Ra8 18.Nb3 Ng6 
       (18...Rb8 19.Ra1=) 
    19.Ra1 Ra1 20.Ba1 Qa7 21.Nfd2 
       (21.Bc3 Qa4 22.d4 e4 23.cb6 Nb6=) 
    21...Qa4+= 22.cb6 Nb6 23.Qc1 Qb4 24.Qc6 Qd6 25.Qd6 
       (25.Qc2 Nd7=) 
    25...Bd6+= 26.g3 
       (26.d4 Bb4+=) 
    (39) Frenzel,Lothar (2070) – Karger,Heinz (2495)
    BdF, 2007
    1.b4 e5+= 2.a3 d5 3.Bb2 Bd6 4.Nf3 Qe7 5.e3 Nf6 6.c4 c6 7.d3 0–0 8.Nbd2 b6 
    9.Be2 Bg4 10.h3 Bc8 11.0–0 Bb7 12.Nh4 Qe6 13.e4 Bc7 
       (13...a5 14.Nf5=) 
    14.cd5 cd5 15.Rc1 Rc8 16.Nf5 Nbd7 17.Bg4 Ng4 18.Qg4 g6 19.Nf3 Bd6 20.Nd6 
    Qd6 21.d4 de4 22.de5 
       (worse is 22.Ne5 Rc1 23.Rc1 Ne5+=) 
    22...Qe7 23.Qg5 Qg5 24.Ng5 Ne5 25.Be5 h6 ฝ–ฝ
    (40) Frenzel,Lothar – Diener,Rudolf
    corr SOK–92–86, 1992
    1.b4 e5+= 2.b5 c6 3.a4 a6 
       (3...d5 4.Bb2 Bd6 5.Nf3+=) 
    4.Bb2= d6 5.c4 Qb6 
       (5...Be6 6.e4+=) 
       (6.d4 ab5 7.ab5 Ra1 8.Ba1 cb5 9.cb5 e4=) 
       (6...ab5 7.ab5 Ra1 8.Ba1+=) 
    7.a5 Qd8 
       (7...Qc5 8.Ba3 Qd4 9.Bb2=) 
    8.b6 Nf6 9.e3 c5 10.Nc3 Nc6 11.h3 Nb4 12.Qb1 Be7 
       (12...Qe7 13.Nf3=) 
    13.Be2 Qc8 14.Bf3 
       (14.Nf3 Bc6=) 
    14...Bf5 15.e4 Bg6 16.Nge2 0–0 17.d3 h5 
       (17...Qe6 18.0–0=) 
    18.Qd1 Nh7 19.Ng3 h4 20.Bg4 Qd8 21.Nf5 Bg5 22.0–0 Nf6 23.Bf3 Qd7 24.Qe2 
    Nc6 25.Nd5 Bf5 26.Nf6 Bf6 27.ef5 Qf5 28.Be4 Qd7 29.Qh5 g6 30.Qh6 Qe7 
       (31.Bd5 Nb4 32.Qg6 Bg7+/–) 
    31...Bg5= 32.Qc3 Nd4 33.Rae1 Rab8 34.Bd5 Kh7 
       (34...Bf4 35.Bc1 Bc1 36.Qc1=) 
    35.f4 Bf6 
       (35...Bh6 36.Bc1=) 
    36.Re4+= Bg7 37.Qd2 
       (37.fe5 de5 38.Qe1 g5+=) 
    37...f5= 38.Ree1 Bh6 39.Qf2 Qf6 40.Bd4 
       (40.Bc1 Bf4 41.Bf4 ef4 42.Qf4 Rfe8=) 
       (40...ed4? 41.Re6 Qg7 42.Rfe1+–) 
       (41.Qe2 Bf4 42.Rf4 ef4 43.Qe7 Kh6 44.Bb7 Qe7 45.Re7 Kg5+=) 
    41...de5+= 42.Qf3 
       (42.Kh1 Be3 43.Qe2 Qe7+=) 
    42...Be3 43.Kh1 Qe7 44.Ra1 Rfc8 
       (44...Rbe8 45.g4 hg3 46.Qg3+=) 
    45.Ra2+= Bf4 
       (45...Re8 46.Re2+=) 
       (46.Raf2 Re8+=) 
    46...Qg5 47.Rf3 Rc5 48.Qe1 Qf6 
       (48...Bg3 49.Qf1+=) 
       (49.Re2 Be3=) 
    49...Qd6+= 50.Qe1 g5 
       (50...Bg3 51.Qe2+=) 
    51.Re2= Bg3 
       (51...Kg7 52.Rf4 gf4 53.Re5 Rd5 54.Rd5+– (54.cd5?! Rf8+/–)) 
    52.Rg3 hg3 53.Re5 Rf8 54.Re7 Kh8 55.Re6 
       (55.Bb7 Ra5 56.Rh7 Kh7 57.Qa5 g4 58.Ba6 Qf4–+) 
    55...Qb8 56.Re7 
       (56.Qb4 Rfc8=) 
       (better is 56...Qd6=) 
       (57.Bb7?! Ra5 58.Re8 Kg7 59.Re7 Kh8=; 
       worse is 57.Rb7 Qe3 58.Re7 Qe1 59.Re1 Ra5–/+) 
    57...g4 58.Re8 Rc8 59.Rc8 
       (better is 59.Re7=) 
    59...Rc8–+ 60.Bb7 
       (better is 60.Kg1 Qe3 61.Qe3 de3 62.Kf1 gh3 63.gh3–/+) 
    60...Qe3 61.Qf1 Re8 62.Be4 
       (62.Ba6?? Qe1 63.Kg1 gh3 64.Bb7 h2 65.Kh1 Qf1) 
       (62...fe4?! 63.Qf6 Kh7 64.Qf7 Kh6 65.Qf6 Kh5 66.Qf5 Qg5 67.Qh7 Qh6 
       68.Qf5 Qg5 69.Qh7 Qh6 70.Qf5 Qg5=) 
    63.Qc1 f4 
       (63...Kh7 64.c5 fe4 65.de4 Re4 66.Qh6 Kh6 67.c6 Re1) 
       (64.hg4?? Kg7 65.Qg1 Rh8 66.Bh7 Rh7 67.Qh2 Rh2) 
    64...Kg7 65.b7 Rh8 66.Bf5 f3 67.Bg4 Re8 68.Qf2 gf2 69.Bf3 f1Q 70.Kh2 Qd3 
       (71.Bc6 Rd8 72.Bd5–+) 
    71...Qb5 72.c6 Qa5 
       (72...Qa5 73.g4 Qa3–+; 
       72...Qg5 73.g4 Qf4 74.Kg2 Re3 75.b8B Qf3 76.Kg1 Re1 77.Kh2 Qf2) 
    (41) Frenzel,Lothar – Fritz,Harry
    corr, 2000
    1.b4 e5 2.b5 d5 3.e3 Nf6 4.Nf3 Bd6 5.Be2 0–0 
       (5...e4 6.Nd4–/+) 
       (6.Bb2 e4 7.Nd4 c5 8.bc6 Nc6–/+) 
    6...e4 7.Nd4 c5 8.bc6 bc6 
       (8...Nc6 9.Bb2–/+) 
       (9.Nc3 a6+=) 
       (9...c5 10.Nb3 Nc6 11.Bb2–/+) 
    10.Nf3+= Nbd7 11.c4 
       (11.Ba3 Ba3 12.Na3 Qe7+=) 
    11...Rb8 12.Nc3 Re8 
       (12...Nc5 13.Qc2+=) 
    13.Nd4 Qc7 14.Nf3 
       (14.h3!? dc4 15.Bc4–/+) 
       (14...Nb6 15.cd5 Nbd5 16.Qc2–/+) 
       (15.cd5!? Nf3 16.Bf3 Nd5 17.Nd5 cd5 18.Bd5–/+) 
    15...Nc4–+ 16.Bc4 
       (16.Qc2 h6–+) 
    16...dc4 17.Qe2 
       (17.Qc2 Qa5 18.Nd4 Qe5–+) 
       (17...Rb6 18.a4 Nh5 19.Rd1–+) 
       (18.a4 Nh5 19.Qd1 Ng3–+) 
    18...Bh2 19.Kh1 Be5 20.Qf3 
       (20.Qf2 c5 21.Nf5 Bc8–+) 
    20...c5 21.Nde2 
       (21.Nf5 Bb7 22.Qe2 g6 23.Nh6 Kg7–+) 
    21...Bb7 22.Qf2 
       (22.Qf5 g6 23.Qg5 Qc6–+) 
    22...Ne4 23.Qh4 
       (23.Qf5 g6 24.Qg4 h5–+) 
       (23...Re6 24.Rb1 Nc3 25.Nc3 Bc3 26.Rb7 Qb7 27.dc3–+) 
       (24.Qg4 Nf2 25.Rf2 Bf2–+) 
    24...Nf2 25.Kg1 
       (25.Rf2 Bf2 26.Qg4 Qc6–+) 
    25...Re5 26.Ng3 Rh5 27.Nh5 Ne4 28.Ne4 
       (28.Rb1 Qe5 29.Nf4 Nc3 30.dc3 Qc3–+) 
    28...Be4 29.a4 
       (29.Nf4 Qe5 30.Ba3–+) 
       (29...Qe5 30.Ba3 Qh5–+) 
    (42) Frenzel,Lothar – Minge,Bjorn
    corr ICCF cp, 1994
    1.b4 e5+= 2.b5 d5 3.e3 Bd6 4.Bb2 Nf6 5.Be2 0–0 6.Nf3 Re8 7.0–0 a6 8.a4 ab5 
    9.ab5 Ra1 10.Ba1 e4 11.Ne1 c5 12.bc6 
       (12.f3 Nbd7+=) 
    12...bc6 13.f4 
       (13.f3 Nbd7+=) 
       (13...Bc5 14.Be5 Nbd7 15.Bb2+=) 
       (14.Nc3 Nc5+=) 
       (14...Nb4 15.Nc3–/+) 
       (15.Bd4 Bh3 16.Ng2 Qe7–/+) 
       (15...Ba6 16.Ba6 Na6 17.Bd4–/+) 
       (16.Bd4 Qe7–/+) 
    16...Qe7 17.Bd4 Ne6 18.Bc3 Ra8 19.d4 
       (19.f5 Ng5–/+) 
       (19...Nc7 20.Nd2–/+) 
    20.Nd2 Qb6 21.Nb3 Ra2 22.Qb1 Qa7 23.Bf1 
       (23.Nc1 Ra4–/+) 
    23...Ng4 24.Re2 Be7 25.Ne1 
    25...Bf1–+ 26.Kf1 Qa6 27.h3 
       (27.Nc1 Nh2 28.Kg2+=) 
    27...Ne3 28.Kf2 Nf5 29.Ng2 Ng3! 30.Re1 
       (30.Kg3 Qe2) 
    30...Nf5 31.Nc1 
       (31.Kg1 Qa4–+) 
       (31...Ra4 32.Qb8 Bf8 33.Nb3–+) 
       (32.Qb8 Bf8 33.Nb3 Qc4–+) 
       (32...Qa7 33.Qb2–+) 
    33.Qb2 Ra2 34.Qb8 Bf8 35.Rc1 
       (35.Qe5 g6–+) 
    35...Ned4 36.Bd4 Nd4 37.Nd4 Qd4 38.Kf1 
       (38.Kg3 Qd2 39.Qb3 Ra3 40.Qa3 Ba3–+) 
    38...Qd2 39.Qb1 Ra3 
       (39...Ra3 40.c3 Ra2 41.Qa2 Qa2–+) 
    (43) Frenzel,Lothar – Woschkat,Karl_Heinz
    corr SOK–91–71, 1991
    1.b4 e5+= 2.b5 d5 3.Bb2 e4 4.e3 Nf6 5.Ne2 Bg4 6.Qc1 Bd6 7.h3 Bd7 8.a4 0–0 
    9.Nbc3 c5 10.d3 ed3 11.cd3 a6 12.Nf4 
       (12.d4 c4+=) 
    12...Bf4–/+ 13.ef4 Black creates threats along the open e–file 13...Re8 
    14.Be2 ab5 15.ab5 
       (15.Nb5 Bb5 16.ab5 Ra1 17.Qa1 d4–/+) 
    15...Ra1 16.Ba1 d4 17.Nd1 
       (17.Ne4 Qa5 18.Kd1 Qa4 19.Kd2 Re4 20.de4 Ne4 21.Ke1 Qa5 22.Kf1 Nd2 
       23.Kg1 Nb3–+) 
    17...Nd5 18.Kf1 Qe7 19.Qd2 Nf4!! 20.Bf3 
       (20.Qf4 Theme: Deflection from e2 20...Qe2 Annihilates a 
       defender: e2) 
    20...Nd3!! Do you see the mate threat? 21.g3 
       (21.Qd3 Theme: Deflection from e1 21...Qe1 Theme: Double Attack
    21...Bb5 22.Kg2 
       (22.Be2 Nc6 23.Rh2 Qe2 24.Qe2 Re2 25.Ke2 Nde5 26.Kd2 Nf3 27.Kc1 Nh2–+ 
    22...Ne1 23.Re1 Qe1 24.Qe1 Re1 25.Bb2 Bc6 
       (25...Bc6 26.Ba3 Bf3 27.Kf3 Rd1–+) 
    (44) Frenzel,Lothar – Neumann
    corr Bilguer, 1990
    1.b4 e5+= 2.b5 Nf6 3.Bb2 Bd6 
       (3...d6 4.d4 e4 5.d5+=) 
    4.e3= 0–0 5.Nf3 a6 
       (5...e4 6.Nd4=) 
       (6.Ne5!? ab5 7.Bb5+=) 
    6...ab5 7.ab5 Ra1 8.Ba1 Re8 9.Bc4 c6 
       (9...b6 10.d4 ed4 11.Bd4 Bb4 12.c3+=) 
    10.0–0 cb5 11.Bb5 Qa5 
       (11...Nc6 12.d4 e4 13.Nfd2=) 
    12.Nc3 Bb4 
       (12...Nc6 13.Bc4+=) 
       (better is 13.Qe2!?+=) 
    13...d5+= 14.Bb3 Bg4 15.h3 Be6 
    16.Ne5+= Bc3? 
       (better is 16...Bh3!? 17.Nf7 Bd7+=) 
       (17.dc3?! Bh3 18.c4 Be6=) 
       (better is 17...Qc7+/–) 
       (18.Ba5 Nc6 19.Ba4+–) 
    (45) Frenzel,Lothar – Schueppel,Ralf
    BdF, 2001
    1.b4 e5+= 2.Bb2 d6 3.e3 Nf6 4.c4 Be7 5.Nc3 0–0 6.h3 
       (6.Nf3 Nbd7+=) 
    6...d5 7.cd5 Nd5 
       (7...Bb4 8.a3 Bd6 9.Qf3+=) 
    8.Nd5 Qd5 9.Bc3 
       (9.a3 a5 10.b5 Be6+=) 
       (9...Be6 10.Nf3 e4 11.Nd4+=) 
    10.Qf3 Be6 
       (10...Qe6 11.a3+=) 
       (11.Qd5 Bd5 12.Be5 Nc6 13.Bc7 Nb4+=) 
       (11...Qd7 12.Qg3 Nc6 13.a3–/+) 
    12.Qd3 White intends b5 
       (12.Qg3 Nc6+=) 
       (12...Nc6 13.Qd6 cd6 14.a3+=) 
    13.Nf3 Nc6 Can b4 get defended? 
       (13...Bb4 14.Rb1 (worse is 14.Ne5 Bc3 15.Qc3 Rd8+=; 14.Be5 Nc6 15.Bf4 Bc5–/+)
        14...a5 15.a3+–) 
    14.b5 Rfd8 15.Qb1 ab5 16.Qb5 Qb5 17.Bb5 Nd4 18.Bd4 ed4 19.a4 
       (better is 19.Ke2!? Ba2 20.Bd3–/+) 
    19...d3–+ 20.a5 c6 21.Ba4 
       (21.Bc6 bc6 22.0–0–+) 
    21...Ra5 22.0–0 Rda8 23.Rab1 Ra4 24.Rb7 Bf8 25.Re1 c5 26.Ne5 
       (26.Kh1 Rb4 27.Rc7 Ra2–+) 
       (26...Ra2 27.Rd1 c4 28.Nf3–+) 
       (27.Nf3 f5 28.e5 Bd5–+) 
    27...Bd6 28.Rb6 
       (better is 28...Bc5!? 29.Kh2 Bb6 30.Nf3–+) 
       (29.Rd6 cd2 30.Rf1–+) 
    29...d2–+ 30.Rd1 
       (30.Rbb1 de1R 31.Re1–+) 
       (better is 30...Bc5 31.Kf1 Bb6 32.Rd2 Re4 33.g4–+) 
       (31.Rd6 Rd1 32.Kf2–+) 
    31...Rb1 32.Rb1 Be5 33.fe5 Rd8 
       (33...Rd8 34.Rd1 Bb3–+) 
    (46) Zimmer,Georg – Frenzel,Lothar
    corr SOK–92–86, 1992
    1.b4 e5+= 2.Bb2 e4 3.e3 Nf6 4.a3 Be7 5.c4 0–0 6.Ne2 
       (6.d3 a5+=) 
       (6...a5 7.b5+=) 
    7.Nec3 d5 8.d3 
       (8.cd5 cd5 9.d3 Bf5+=) 
       (8...dc4 9.dc4 Qd1 10.Nd1+=) 
    9.Be2 Re8 
       (9...dc4 10.dc4 Qd1 11.Nd1+=) 
    10.0–0= Nbd7 
       (10...a5 11.de4 de4 12.c5=) 
    11.cd5 cd5 12.de4 de4 
       (12...Be4 13.Ne4 de4 14.Qd4+=) 
       (better is 13.g4!? Be6 14.g5+/–) 
       (13...a5 14.ba5 Nc5 15.Bb5=) 
    14.Nc4 Bg6 
       (14...Be6 15.Nb5 Qb8 16.Rc1+=) 
    15.Nd6 Bd6 16.Qd6 Re6 17.Qe6?? 
       (better is 17.Qg3+=) 
    17...fe6–+ 18.Bc4 
       (18.Rfd1 Rc8–+) 
    18...Qe7 19.Nb5 Rc8 
       (19...Nb6 20.Be2–+) 
       (20.Rac1 Nb6 21.Bb3 Be8 22.Rc8 Nc8–+) 
    20...a6 21.Bf6 
       (21.Nd4 Nd5–+) 
    21...Nf6 22.Nd4 Nd5 23.f4 
       (23.Rac1 Rc1 24.Rc1 Be8–+) 
    23...ef3 24.Nf3 
       (24.Rf3 Be4 25.Rg3 b6–+) 
    24...Rc3 25.Bd5 
       (25.Nd4 Re3 26.Rac1 Qe8–+) 
    25...ed5 26.Rfe1 Re3 27.Kf2 Re1 
       (27...d4 28.Rac1–+) 
    28.Re1 Qf6 29.Kg3 
       (29.Re3 b5 30.Kg3 Qb2–+) 
       (29...Qc3 30.Re5 Qa3 31.Rd5 Qb4 32.h4–+) 
       (30.Re3 g5 31.h3 Qf4 32.Kf2 d4–+) 
    30...Qd6 31.Kf2 Qf4 
       (31...Bf3 32.Kf3 Qf6 33.Ke2 Qe5 34.Kd3 Qh2 35.Rc5 Qg2 36.Rc8 Kf7 
       37.Rc7 Ke6 38.Rb7 Qf3 39.Kd2 Qa3 40.Ke2–+) 
       (32.Rc8 Kf7 33.Rc3 d4–+) 
       (32...g5 33.h3 h5–+) 
    (47) Frenzel,Lothar – Gross,Wilhelm
    corr SOK–90–56, 1990
    1.b4 e5+= 2.Bb2 e4 3.e3 Nf6 4.b5 d5 5.c4 Be7 6.h3 
       (6.cd5 Qd5 7.Nc3 Qe6=) 
       (6...Be6 7.cd5 Bd5 8.Nc3+=) 
       (7.Nc3 dc4 8.Bc4 Bf5+=) 
    7...0–0 8.d3 
       (8.Nc3 Be6 9.cd5 cd5+=) 
    8...dc4 9.dc4 Qd1 10.Kd1 Rd8 11.Kc2 
       (11.Ke1 Be6–/+) 
       (11...c5 12.Nc3 Be6 13.Rd1+=) 
    12.Nd2 Nc5 13.Bd4 a6 
       (13...Bd7 14.Bc5 Bc5 15.Be2–/+) 
    14.bc6 bc6 15.f3 
       (15.Bc5 Bc5 16.Rb1 Be6–/+) 
    15...ef3 16.gf3 Bf5 17.Kc3 
       (17.Kd1 Rd7–/+) 
    17...Rab8–+ 18.e4 Nfe4! 19.fe4 
       (19.Ne4 Be4) 
    19...Ne4 20.Ne4 Be4 21.Be5 
       (21.c5 Bh1 22.Rd1–+) 
    21...Bb4 22.Kb3 Bd6 
       (22...Bh1?! 23.Bb8 Rb8 24.Bd3–+) 
    23.Ka2 Be5 24.Re1 Rd2 
       (24...Rd2 25.Ka3 Bd6 26.c5 Bc5) 
    (48) Frenzel,Lothar – Jacewicz,Grzegorz
    corr 3GMM–28, 1996
    1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 c5 5.b5 Be6 6.Nc3 Bd6 7.g3 
       (7.e4 Ne7+=) 
       (7...Ne7 8.Qh5 Bf7 9.Qg4–/+) 
    8.Ne4 Be7 9.Bg2 
       (9.f4 Nd7+=) 
       (9...f5 10.Bh3–/+) 
       (10.Qh5 Bf7 11.Qe2 f5 12.ed4 fe4 13.Qe4 a6 (13...Qb5? 14.Qb7 Qb7 
       15.Bb7+–) 14.dc5 ab5 15.Be5 Ra4+–) 
    10...cd4 Black gets the initiative 
       (worse is 10...ed4 11.Nc5 Bc5 12.Qh5 Kd8 13.Qc5+/–) 
    11.Qe2 a6 12.ba6 Na6 
       (12...ba6? 13.Nf6 Nf6 14.Ba8+–; 
       12...Ra6?! 13.Nf3+=) 
    13.Nf3 Rc8 14.d3 
       (14.Rc1 Nc5+=) 
       (14...Nc5 15.Nc5 Bc5 16.0–0+=) 
    15.c4 dc3 16.Nc3 Nc5 17.Rd1 Nb3 18.h3 
       (better is 18.Ne4!?+=) 
    18...Nd4–+ 19.Qe4 f5 
       (better is 19...Ba3 20.Ba3 Bf3 (20...Rc3?! 21.hg4 Nf3 22.Bf3 Ra3 23.d4=) 
       21.Bf3 Rc3–/+) 
       (20.Ne5 fe4 21.Nd7 Bd1 22.Nd1 Nc2 23.Kd2 Bg5 24.Ke2 Kd7 25.Bg7=) 
    20...Qd5–+ 21.Nd5 Nf3 22.Kf1 Bh5 
       (22...Nh2 23.Rh2 Bd1 24.Ne7 Ne7 25.Be5–+) 
    23.g4 fg4 24.hg4 Bg4 25.Ne3 Nh2 26.Rh2 Bd1 27.Nd1 Nf6 
       (27...Rd8 28.Be5 Bf6 29.Bf6 Nf6 30.Ke2–+) 
    28.Bb7 Rc7 
       (28...Rc2 29.Be5 Ba3 30.Kg2–+) 
       (29.Be4 Ne4 30.de4 Bd6–+) 
    29...Rc2 30.Bb5 
       (30.Be5 Ba3 31.Kg2 Rd2–+) 
       (30...Kf8 31.Ba4 Rd2 32.Be5 Rd3 33.Ne3–+) 
       (31.Bc4 Ke8 32.Be5 Ba3 33.Ne3 Rc1 34.Ke2–/+) 
    31...Rd2–/+ 32.Bc4 Kf8 33.Ke1 Bb4 34.Bb5 
       (34.Ba3 Rd1! 35.Kd1 Ba3 36.a5–+) 
       (34...Rb2 35.Kf1 Rd2 36.Ne3–+) 
       (35.Bc3 Bc3 36.Nc3 Rc3–+) 
    35...Rd2 36.Ke1 
       (36.Kf3 e4 37.Kg2 Rd1–+) 
       (36...Rc2 37.Kf1 Rd2=; 
       better is 36...Rb2 37.Kf1 Rd2–+) 
    (49) Frenzel,Lothar – Husslein
    corr SOK–87–16, 1987
    1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 e4 6.c4 c6 7.Nc3 Bb4 8.Qa4 Qa5 
       (9.Qa5 Ba5 10.cd5 Bd5=) 
    9...dc4 10.Bc4 Bc4 11.Qc4 Ne7 
       (11...Qb5 12.Qe6 Ne7 13.Qe4=) 
       (12.bc6 Nbc6 13.Nge2 f5=) 
    12...Bc3+= 13.Bc3 Qb5 14.Qb5 cb5 15.Bb4 
       (15.Ne2 Nd5+=) 
       (15...Nd5 16.Ne2+=) 
    16.Ne2 Nd5 17.Bd6 
       (better is 17.Ng3!?+=) 
    17...Kd7–+ 18.Bg3 g5 
       (18...b4 19.Rb1–+) 
       (19.h4 h6–/+) 
       (19...b4 20.Kd2 b6 21.h4 ba3 22.hg5 fg5 23.Rh6–/+) 
       (20.h4 h6–/+) 
       (20...b4 21.Rfc1 b6 22.a4–+) 
    21.h4 Rac8 
       (21...b6 22.Rfc1–+) 
    22.Rfc1 b4 
       (22...b6 23.hg5 fg5 24.Bh2–+) 
    23.Rc5 Ke6 24.ab4 
       (24.hg5 fg5 25.f4 Rhd8 26.ab4 b6–/+ (worse is 26...Ndb4 27.Rg5 Rd5 28.Rg7+=; 
       26...Ne3?! 27.b5 ab5 28.Rbb5+=)) 
    24...Ncb4–+ 25.Ra5 
       (25.f3 ef3 26.gf3 gh4 27.Bh4 Rhg8 28.Kh1 Rc5 29.dc5+=) 
       (25...Rc2 26.Kf1–+) 
       (26.Ra4 a5 27.hg5–+) 
       (better is 26...Rc2!? 27.Nc3 Nc3 28.Rb4 Nd5–+) 
    27.hg5–/+ h4 28.Nf4 Nf4 
       (28...Kf7 29.Nd5 Nd5 30.Bh2–/+) 
    29.Bf4+= a5 30.gf6 Nd5 
       (30...Rg8 31.Be5+=) 
    31.Be5 Rh5 
       (31...Rg8 32.Kh2=) 
    32.Rab3 Rh7 
       (32...a4!? 33.Ra3 Nc3+=) 
    33.f3+/– a4 
       (better is 33...Kf5+/–) 
       (34.Rb5 ef3 35.e4 f2 36.Kf2 Nc3 37.Rb6 Ne4 38.Ke3 Rb6 39.Rb6 Kf5+/–) 
       (better is 34...ef3 35.gf3 Nc3= (worse is 35...Nf6 36.Ra4 Nd7 37.Ra7+/–)) 
       (35.Ra4?! Nc3 36.Rab4 Nb1 37.Rb1 ef3+=) 
       (35...Rc8 36.Ra4 Ne3 37.fe4 Ke4 38.Re1+–) 
       (36.e4 Ke4 37.Raf3 Nf6 38.Bf6 Kd5+–) 
    36...Kg6+/– 37.Ra4 Rf7 
       (37...Nf6 38.Bf6 Rf6 39.Rf6 Kf6 40.Rb4+–) 
       (38.g3 h3 39.Kh2 Rc3+–) 
    38...Nf6+/– 39.Rf4 
       (39.Bf6 Rff6 40.d5 Rc1 41.Kh2 b5+/–) 
       (39...Nd7 40.Rf7 Kf7 41.Bf4+/–) 
    40.Ra1 Re7 41.Raf1 Nh5 
       (41...Nd7 42.Rf5 Kg6 43.R1f4 Ne5 44.de5+– (44.Re5?! Re5 45.de5 Kg5 
       46.Rf5 Kg4+=)) 
       (42.Rf8 Ng3 43.d5 Rg6 44.Bg3 hg3 45.R1f5 Kh6+–) 
       (42...Kg6 43.R5f3+–) 
    43.Rf8 Rg6 44.R1f5 Rb7 
       (44...Rh7 45.Kf2+–) 
    45.Rh8 Rg5 46.Rg5 Kg5 47.Rg8 Kh6 48.Rg4 b5 49.Rh4 
       (49.d5 b4+–) 
       (49...Kg5 50.Rh3 Nf6 51.Bf6 Kf6+–) 
       (50.g4 Kg5 51.Rh5 (worse is 51.gh5 Kh4 52.d5 Kg4+=) 51...Kg4 52.Rf5+–) 
    (50) Frenzel,Lothar – Fischer
    corr (year?)
    1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 Bd6 6.Nd2 c6 7.c4 e4 8.c5N 
       (8.Qb3 Ne7 (8...Qd7 9.c5 Bc7 10.Ba3 Ba5 11.Rb1 Nh6 12.bc6 bc6 13.Bb4 
       Bb4 14.Qb4 0–0 15.Ne2 Qc7 16.Nf4 Bg4 17.h3 Bc8 18.Be2 Re8 19.Qb3 Nf7 
       20.0–0 f5 21.Rfc1 Re7 22.a3 Nd7 23.Qa4 Martins,K–Trokenheim,M/corr 
       TKM–A002 1999/ฝ–ฝ (49)) 9.c5 Bc7 10.Ne4 0–0 11.Ng3 Nd7 12.Bd3 f5 
       13.f4 Nf6 14.Nf3 Ng4 15.Ke2 Ng6 16.h3 Nh6 17.a4 Nf7 18.Nf5 Bf4 19.ef4 
       Nf4 20.Kd2 Ng5 21.Nd6 Ng2 22.Ng5 Qg5 Diener,R–Klebaner,J/corr ICCF 
       H–1296 1992/1–0 (36); 
       8.Qc2 Ne7 9.Ne2 0–0 10.Nc3 f5 11.g3 Nd7 12.Be2 Kh8 13.a4 Bc7 14.0–0 
       Nf6 15.c5 g5 16.Ra3 f4 17.Nde4 Bf5 18.Bd3 de4 19.Ne4 Be4 20.Be4 Ned5 
       21.Bg2 fe3 22.fe3 Ng4 Reissner,B–Stielfried,M (2285)/Bundeswehr–ch 
       1988/0–1 (50); 
       8.Qa4 cb5 9.cb5 Nd7 10.Rc1 Nb6 11.Qb3 f5 12.Nh3 g5 13.g3 h6 14.a4 Rc8 
       15.Rc8 Nc8 16.Ba3 Nf6 17.Bd6 Nd6 18.Qc3 Qd7 19.f4 ef3 20.Nf3 Nfe4 
       21.Qb3 Qc8 22.Nf2 Qc1 Wunden,W–Seidel,D/NRW–ch U15 Brilon 1993/0–1 
       8.c5 Bc7 9.Qb3=) 
    (51) Frenzel,Lothar – Diener,Rudolf
    corr SOK–88–25, 1988
    1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 Nh6 5.Qh5= Kf8 6.Ne2 c6 7.c3 
       (7.Bc3 Bc5+=) 
       (7...d5 8.cb4 dc4 9.h3–/+) 
    8.Ng3 d5 9.Bb3 
       (better is 9.Be2!?–/+) 
    9...Bg4–+ 10.Qh4 f5 
       (10...de4!? 11.0–0 Na6 12.Ba3–+) 
    11.Ba3–/+ fe4 
       (11...de4 12.h3 c5 13.Bc5+/–) 
       (12.c4 Nd7 13.Be7 Qe7 14.Qe7 Ke7 15.cd5 Nc5+=) 
    12...Qe7 13.Qe7 Ke7 14.0–0 Nf5 15.Nf5 Bf5 16.f4 ef4 17.Rf4 Rf8 18.Na3 g5 
    19.Rf2 Nd7 20.Nc2 Bg4 21.Raf1 Rf2 22.Rf2 Rf8 23.Ne3 Rf2 24.Kf2 Be6 25.Bd1 
    Nf6 26.g4 c5 27.a3 d4 28.cd4 cd4 29.Nf5 Bf5 30.gf5 Kd6 31.Bb3 Ke5 32.Be6 
       (32...Ng4!? 33.Kg2–+) 
    33.h3 Kf4 34.Bc8 b6 35.a4 
       (35.Be6 g4–+) 
    35...e3 36.de3 de3 37.Ke2 Ne4 38.Bd7 
       (38.Ke1 Nd6 39.f6 Ke5–+) 
    38...Ng3 39.Ke1 
       (39.Kd3 Nf5 40.Bb5 g4 41.hg4 hg4–+) 
    39...Nf5 40.Ke2 Nd4 41.Ke1 Kf3 42.Bb5 g4 
       (better is 42...Nb5 43.Kf1 Nc3 44.a5–+) 
    43.hg4 hg4 
       (43...hg4 44.Kd1 Nb5–+) 
    (52) Frenzel,Lothar – Bothe,Erhard
    sok corr, 1997
    1.b4 e5+= 2.Bb2 Qe7 3.a3 f5 4.e3 Nf6 5.c4 g6 6.d4 ed4 7.Bd4 Bg7 8.Nf3 Nc6 
    9.Be2 Nd4 10.Nd4 
       (10.ed4 d5=) 
    10...0–0 11.Ra2 d6 12.0–0 Ne4 13.Nf3 Be6 14.Rc2 Rad8 15.Qc1 Bf7 16.Rd1 
    Rfe8 17.Nbd2? 
       (better is 17.Rd3+=) 
    17...Nf2!–+ 18.Rf1? 
       (18.Kf2 Qe3 Double attack) 
    18...Ng4 19.Re1 
       (19.Kh1 Qe3 20.Nb1 Nf2 21.Kg1 Nd1 22.Kh1 Qc1 23.Rc1–+) 
    19...Qe3 20.Kh1 Nf2 21.Kg1 Nh3 22.Kh1 Qg1! 23.Rg1 
       (23.Rg1 Nf2 mate  Mate attack; 
       23.Ng1 Nf2 mate  Mate attack) 
    Nf2 0–1
    (53) Bendig,Frank – Frenzel,Lothar
    corr ICCF TT, 1995
    A00: Irregular Openings
     1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 
    fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 Qg4 9.Bh8 f6 10.Rh7 Qd4 11.e3 Qa1 12.c3 
       (12...Ba5 13.d3 Qa2 14.Rh4 Qf7 15.Bf3 Kd8 16.Kf2 d5 17.Qc2 Qe6 18.Kg3 
       Ne7 19.Bg4 Qe5 20.Kh3 0–1 Hasler,U–Bogdanov,V/corr ICCF EM/C 1997 
    13.dc3 Qa2 14.Bd5N 
       (14.Qh5 Kd8 15.Bf6 Nf6 16.Rh8 Qg8 17.Rg8 Ng8 18.Qh8 c6 19.Qg8 Kc7 
       20.Bh3 b5 21.Nd2 a5 22.e4 Na6 23.e5 a4 24.e6 de6 25.Be6 Bb7 26.Qf7 Kb6 
       27.Ne4 Nc7 28.Qf2 Ka5 Rosner,D–Zimmer,G/corr freie Partie 1992/1–0 
    Qa5 1–0
    (54) Frenzel,Lothar – Woschkat,Karl_Heinz
    corr SOK–87–16, 1987
    1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 Nc6 7.Bb2 Be6 8.Qc2 
    Ne4 9.Bd3 
       (9.a3 Bd6 10.d4 Qf6 11.Bd3 (11.c5 Be7 12.Bd3 Qg6 13.0–0 Bf5=
       ) 11...Qg6 12.0–0 Bg4 13.Nh4+/– (13.Nbd2 f5= 
      ) 13...Qh5+=; 
       9.Nc3 Nc3 10.dc3 Bd6 11.Bd3 h6 12.cd5 Bd5 13.e4=) 
    9...f5 10.0–0 
       (10.a3 Bd6 (10...Be7 11.0–0 Nc5 12.Be2 f4 13.d4=) 11.cd5 
       Bd5 12.Bc4 Bc4 13.Qc4=) 
       (10...Rf7 11.cd5 Bd5 12.a3= Ba5 13.Bc4=; 
       10...Bd6 11.cd5 Nb4 12.Qb3 Bd5 13.Bc4=) 
       (11.cd5 Qd5 12.Nc3 Nc3 13.dc3=) 
       (11...Be7 12.Be2= dc4 13.Bc4=) 
       (12.cd5 Bd5 13.Bc4 Bc4 14.Qc4 Kf8+=) 
       (12...dc4 13.Be4 fe4 14.Ne4=) 
    13.Qc3= Bf8 
       (13...Qe7 14.Rfc1 dc4 15.Bc4 Bc4 16.Qc4 Qf7 17.Qf7 Kf7 18.d3=) 
    14.Rac1 a5 15.h4 
       (15.Qc2 dc4 16.Bc4 Bc4 17.Qc4 Kh8+/–) 
       (15...h6 16.c5+=) 
    16.Ng5 Rad8? 
       (better is 16...dc4 17.Bc4 Bd5+=) 
    17.Ne6+– Qe6 18.cd5 Rd5 19.Bc4 
       (19.Bc4 Rb8 20.d3+–) 
    (55) Frenzel,Lothar – Nebe,Lutz
    corr SOK–89–40, 1989
    1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 Nc6 6.Bb2 d5 7.cd5 Nd5 8.Nf3 
    Re8 9.Be2 Re3?? 10.fe3+– Ne3 11.Qc1 Ng2+/– 12.Kf2 
       (12.Kf1 Bh3+/–) 
    13.Rg1+– Qe7 14.d4 
       (14.Bc4 b5 15.Bf7 (15.Rg2?! Bg2 16.Bb5 Bf3 17.Kf3 Ne5 18.Kf2 Rb8+=) 
       15...Qf7 16.Qc6+– (16.Rg2?! Bg2 17.Qc6 Bf3 18.Qf3 Rf8 19.Qf7 Rf7 
       20.Ke3 Re7 21.Kd3 c5+=)) 
    14...Re8 15.Bd3 
       (better is 15.Bf1+–) 
    15...Qf6 16.Qg5?? 
       (16.Rg2 Be1 17.Kg1 Qf3–/+) 
    16...Be1+/– 17.Re1 Ne1 18.Bh7 Kh7 Do you see the mate threat? 19.Qh5 
       (19.Qf6 Nd3 20.Kg3 gf6 21.Kh3 Nb2 22.Nbd2–+) 
    19...Kg8 20.Bc3 
       (20.Qh3 Nd3 21.Kg1 Qg6 22.Qg3 Qg3 23.hg3 Nb2 24.Nbd2–+) 
    20...Nd3 21.Kg1 Nd4! Threatening mate: Ne2.  22.Nbd2 
       (22.Nd4 A deflection 22...Re1 The nicest combinations are those 
       leading to#) 
    22...Ne2 23.Kh1 Nf2 0–1
    (56) Frenzel,Lothar (2135) – Teske,Heike (2215), 2010
    1.b4 e6 2.a3 d5 3.e3 Nf6 4.Nf3 Nbd7 5.Bb2 a5 6.Nc3N 
       (6.c3 Bd6 7.Be2 e5 8.Qb3 0–0 9.c4 e4 10.Nd4 dc4 11.Bc4 Ne5 12.Nb5 a4 
       13.Qa2 Nc4 14.Qc4 Be6 15.Qd4 Ra6 16.Nd6 Rd6 17.Qa7 b5 18.Bd4 Re8 
       19.Nc3 Bc4 20.Rc1 Qd7 Comet B25 (2220)–Fritz 6/0–1 (45); 
    6...ab4–/+ 7.ab4 Ra1 8.Qa1 Bb4 9.Qa4 c5 10.Be2 Qa5 11.Qa5 Ba5 12.0–0 Ke7 
    13.Ra1 b6 14.h3 Bb7 15.Nb5 Ra8 16.Nc7 Rg8 17.Nb5 Ba6 18.d4 Bb7 19.dc5 
       (better is 19...Nc5 20.Bd4 Nce4–/+) 
    20.Ra5+– Rb8 21.g4 Ra8 
       (21...Ne8 22.Bd3+–) 
    22.Ra8 Ba8 23.Nc7 Bb7 24.g5 Nh5 25.Nd2 g6 26.Nb3 Kd8 27.Nb5 Bc6 28.Na5 
    Bb5 29.Bb5 c4 30.Bc3 Kc7 31.Nc6 Kb6 
       (31...f6 32.Ba5 Nb6 33.Nd4+–) 
    32.Ba4 Kc7 33.Ba5 Nb6 34.Nd4 
       (34.Ne5 Kd6 35.Nf7 Kc5 36.Bb6 Kb6+–) 
    34...Kb7 35.Bb5 Ng7 
       (35...Nc8 36.Bc6 Kb8 37.Bb4+–) 
    36.Nc6 Nf5 37.Nd8 Kc7 38.Nf7 Ng7 39.Kg2 Kb7 
       (39...Nh5 40.Bc3+–) 
       (40.Bc3 Nf5+–) 
       (40...Kc7 41.Bc3 Nf5 42.Be5 Kc8 43.e4 de4 44.Ke4+–) 
       (41.Bc3 Nf5+–) 
    41...Kb7 42.Ke5 Kc7 43.Nd6 Nf5 44.Nf5 ef5 45.h4 Kb7 
       (45...c3 46.Be8 Kd8 47.Bg6 hg6+–) 
    46.Bb6 Kb6 47.Be8 Kc5 48.c3 f4 49.Bf7 
       (49.Bf7 fe3 50.fe3+–) 
    (57) Frenzel,Lothar – Hofmann,Georg
    corr, 2002
    1.b4 e6 2.a3 Nf6 3.Bb2 d5 4.Nf3 c5 5.bc5 Bc5 6.e3 Nc6 7.Bb5 
       (7.d4 Qb6 8.Ra2 Be7=) 
    7...Bd7 8.0–0 0–0 9.d4 Be7 10.Nbd2 Na5 
       (10...Rc8 11.Bd3=) 
    11.Bd3= Rc8 
       (11...Qc7 12.Ne5=) 
       (12.Ne5 b5=) 
       (12...Nc6 13.Ne5=) 
    13.Ba3 Ba3 14.Ra3 Qe7 15.Qa1 Rc7 16.Ne5 Rfc8 The backward pawn on c2 
    becomes a target 17.Rb1 Be8 18.c3 
       (18.Ra2 Nd7=) 
    18...Nd7 19.Nd7 Bd7 Black gets the initiative 20.Bb5 
       (20.Qb2 e5=) 
    20...Bc6 21.c4 
    21...Nc4–/+ 22.Nc4 dc4 23.Bc4? 
       (better is 23.Bc6!? Rc6 24.Qc3–/+) 
    23...Bg2!–+ 24.Kg2 Qg5 25.Kh1 Rc4 26.Ra2 Qd5 27.Kg1 e5 28.Rd2 R4c6 
       (29.a5 Rg6 30.Kf1 Qg2 31.Ke2 Qg4 32.Kf1 Rh6–+) 
    29...Rg6 30.Kf1 Qg2 31.Ke1 Qf3 32.Kf1 Rg2 33.de5 
       (33.Re2 Rh2 34.Ke1 Rh1 35.Kd2 Rc2 36.Kc2 Qe2 37.Rd2 Qc4 38.Qc3 Qa4 
       39.Qb3 Qc6 40.Qc3 Rc1 41.Kc1 Qc3 42.Kd1 h5–+) 
       (better is 33...Re8 34.e6 f6–+) 
       (34.Qa3 Rh2 35.Qf8 Kf8 36.Rd8 Ke7 37.R8d7 Ke6 38.R1d6 Ke5 39.Rd5 Qd5 
       40.f4 Ke6 41.Rd5 Kd5 42.f5–+) 
    34...Rh2 35.ef7 Kh8 
       (35...Kf7 36.Rd7 Ke6 37.Re7 Kf5 38.Qe5 Kg4 39.Rg7 Kh4 40.Qg5 Kh3 
       41.Rh7 Qh5 42.Qh5; 
       35...Rf7?! 36.Rd8 Rf8 37.Qa2 Kh8 38.Rf8 Qf8 39.Rd7=; 
       35...Qf7?! 36.f4 Rh1 37.Kg2–/+) 
    36.Qg7 Kg7 37.Ke1 
       (37.e4 Rh1) 
    Rh1 0–1
    (58) Frenzel,Lothar – Sternik,Ryszard
    corr SOK–99–122, 1999
    1.b4 e6 2.Bb2 Qh4 3.a3 f5 4.Nf3 Qh6 5.c4 Nf6 6.d4 
       (6.Nc3 d6+=) 
       (6...Be7 7.Bc1 Qh5 8.Bf4+=) 
       (7.Bc1 Qh5 8.Qa4 b6+=) 
       (7...Be7 8.Nc3+=) 
       (8.Bc1 Qg6+=) 
    8...Bb7= 9.Nbd2 Be7 10.h3 
       (10.Bd3 0–0=) 
       (10...0–0 11.Bd3=) 
    11.Qc2 0–0 12.Be2 
       (12.Bd3 c6=) 
    12...Qg6 13.Rg1 
       (13.0–0 Ne4=) 
    13...Ne4 14.Ne4 
       (14.Bd3 Nd2 15.Nd2 Bh4= (15...Bg2? 16.Qc3+–)) 
    14...fe4 15.Nd2 Nd7 16.Nf1 
       (16.Bg4 Qf7 17.Rf1 Nf6=) 
    16...Qf7 17.Bd1 
       (17.Bg4 Bh4 18.Ng3 Nf6+=) 
    17...Bh4 Pawn f2, live or die! 18.g3 Bg5 19.h4 
       (19.Bg4 c6+=) 
    19...Be7 20.Bg4 
       (20.Rg2 c5+=) 
       (20...c6 21.bc6 Bc6 22.Rg2–/+) 
       (21.Bh3 c6–/+) 
    21...Nc5 22.Be6 Ne6 23.de6 Qe6 24.Nd2 Bf6 25.Rf1 Bb2 26.Qb2 Qg4 
       (26...Rf5 27.Qc2–/+) 
       (27.Qc2 Qf5–/+) 
       (27...Ra7 28.Nd2–/+) 
    28.Qd4 Rf7 
       (28...Qf3 29.Nd2 Qg4 30.Rg1–/+) 
    29.Nc3 Qc5 
    30.Qc5= bc5 31.Rb1 
       (31.Rd1 Kf8=) 
       (31...Kf8 32.b6=) 
       (32.Ke2 Rf7=) 
    32...Bc8 33.Nf4 Rf7 
       (33...Rb8 34.Nd5 Rf7 35.Rg1=) 
    34.Kd2 Rb8 35.Rb2 
       (35.f3 ef3 36.Rf3 Bb7=) 
    35...Bg4 36.Kc3 Kf8 37.Rfb1 Ke7 38.Kd2 
       (38.b6 cb6 39.Rb6 Rb6 40.Rb6 Bc8=) 
    38...Be6 39.Kc3 Rb6 40.Rc1 
       (40.Rf1 Kd7=) 
       (40...Rb7 41.Rd1+=) 
       (41.Rf1 Rfb8=) 
       (41...c6 42.Kc3=) 
       (42.Kc3 Kd7=) 
    c6 ฝ–ฝ
    (59) Frenzel,Lothar – Bendig,Frank
    corr SOK–92–83, 1992
    1.b4 Na6 2.a3 c5 3.b5 Nc7 4.c4 Nf6 5.e3 e5 6.Bb2 d6 7.Be2 Be7 8.Nc3 0–0 
    9.Nf3 Bf5 10.0–0 e4 11.Ne1 a6 12.a4 d5 Black is in command 13.d3 dc4 
    14.de4 Ne4 15.Ne4 
       (worse is 15.Bc4 Nd2 16.Qe2 Nf1–+ (16...Nc4?! 17.Qc4 Qd2 18.Bc1+=)) 
    15...Be4 16.Bc4 Qd1 17.Rd1 ab5 18.ab5 Ra4 19.Rd7 
    19...Rc4–/+ 20.Rc7 Bd8 21.Rc8 Bf5 22.Rb8 Rb4 23.Be5 Rb5 24.Nf3 f6 25.Bd6 
    Be7 26.Rf8 Kf8 27.Be7 Ke7 28.Rc1 Rb1 Threatening mate... how? 29.Rb1 
    Bb1 30.Kf1 
       (30.Nd2 Bd3–+) 
       (30...Bd3 31.Ke1 Be4 32.Nd2 Bg2 33.f3–+) 
    31.Ke2 Kd6 32.Nd2 Bg6 33.f3 c4 34.Kd1 Bd3 35.Kc1 b4 36.g3 b3 
       (36...Kd5!? 37.Kd1–+) 
    37.Kb2 Kc5 38.Kc3 Kb5 39.e4 Kc5 40.f4 Kd6?? 
       (40...Be2!? 41.h3–+) 
       (41.Nb3 Be4 42.Nd2 Kd5 43.Nc4 g5=) 
       (41...Be2 42.Kd4–+) 
       (42.Nb3 Be4 (42...cb3?! 43.Kd3 Kd6 44.Kc3=) 43.Nc5 Kd5–/+) 
       (42...Be2 43.Kd4–+) 
       (better is 43.Nb3!? Be4 44.Nd2= (44.Kc4?? Bd5 45.Kc3 Bb3–+)) 
       (43...Be2 44.Kd4–+) 
    44.Nb3–/+ Be4 
       (44...cb3 45.Kd3 fg5 46.hg5–+) 
    45.Nd4 Kd5 46.Ne2 Bd3 47.Ng3 f5 48.Nh5? 
       (better is 48.h5–/+) 
    48...Ke4–+ 49.Ng7 Black now must not overlook the idea h5 49...Kf4 
       (50.Ne6 Kg4 51.h5 Kh5–+) 
    50...Kg4 51.Nf6 Kh4 52.Nh7 f4 53.Nf8 
       (53.Nf6 f3 54.Nd5 f2–+) 
       (better is 53...f3 54.g6 Bg6 55.Ng6 Kg3 56.Kc4–+) 
    54.Ne6 Kg4 55.Kd2 f3 56.Ke3 Kg3 57.Nf4 f2 58.Nh5 Kg4 59.Nf6 Kf5 60.Kf2 
    Kf6 61.Ke3 Ke5 
       (61...Ke5 62.Kf2 c3–+) 
    (60) Wolfram,Fritz – Frenzel,Lothar
    corr SOK–89–40, 1989
       (1.Nf3 Nf6=) 
    1...Nc6 2.b5 Nd4 3.a4 
       (3.e3 Nf5=) 
       (3...e5 4.Nf3+=) 
       (4.e3 Nf5=) 
       (better is 4...e5!?+=) 
    5.e3+= Nf5 6.Nf3 d5 7.c4 
       (7.ba6 ba6 8.Nc3 Rb8=) 
    7...e6 8.d4 Nf6 9.Bd3 cd4 10.Nd4 Nd4 11.Bd4 Bb4 12.Nd2 0–0 
       (12...dc4 13.Bc4 Ne4 14.Ra2 ab5 15.0–0 Bd2 16.Bb5 Bd7 17.Rd2 Bb5 
    13.0–0 dc4 
         A) worse is 14.ab5 Ra1 15.Ba1 Bd2 16.Bf6 gf6 (16...Qf6?! 17.Qd2 dc4 
          18.Bc4=) 17.Qd2 dc4–+;
         B) 14.cb5 Bd6 15.Nf3=) 
       (14.Bc4? e5 15.Be5 Qd2 16.Bf6 gf6–/+) 
    14...Nd5 15.Qh5 The mate threat is Qxh7 15...f5 16.Ne5 Nf6 
       (16...Nf4 17.ef4 Qd4 18.Qh4=) 
    17.Qf3+/– Bd6 18.ba6 
       (better is 18.Rfd1!?+/–) 
    18...Be5= 19.Be5 Qd3 20.ab7 Bb7 21.Qb7 Ne4?? 
       (better is 21...Ra5 22.Bf6 gf6+/–) 
    22.Qg7 1–0
    (61) Roggensack Hanspach,Peter – Frenzel,Lothar
    corr SOK–89–40, 1990
    1.b4 Nc6 2.b5= Nd4 3.e3 Nf5 4.c4 c5 
       (4...e5 5.Bb2=) 
    5.Bb2 e6 
       (5...d5 6.Nf3=) 
       (6.e4 Nd4+=) 
       (6...d5 7.Bd3=) 
    7.Be2 d5 8.d4 Be7 
       (8...cd4 9.Nd4 Nd4 10.Qd4 dc4 11.Qd8 Kd8 12.Bc4=) 
    9.0–0 0–0 10.Nbd2 b6 11.Ne5 Bb7 12.Nb3 Qc7 13.cd5 Bd5 14.dc5 Bb3 
       (14...bc5!? 15.Qc2 Bd6=) 
    15.Qb3+= Qc5 
       (15...bc5 16.Qc4+=) 
       (16.Rac1 Qd5+/–) 
       (16...a5 17.Rfc1 (worse is 17.Ne7 Qe7 18.Ba3 Nd6+=) 17...Qd6 18.Qc2+/–) 
       (better is 17.Rfd1 Qc7 18.Ne7 Ne7 19.Rac1+–) 
       (better is 17...Rac8+/–) 
       (18.Na7?! Nh4 19.Be2 Qd2+–; 
       18.Ne7?! Qe7 19.e4 Nh4+/–) 
    18...Nh4 19.e5 
       (19.Na7?! Qf4+=) 
    19...Nf3 20.Qf3 Qd5 21.Ne7 
       (worse is 21.ef6 Qf3 22.gf3 Bf6 23.Bf6 gf6 24.Na7 Ra8+–) 
    21...Re7 22.ef6 Rd7 
       (22...Qf3 23.gf3 (23.fe7?! Qe2 24.ef8R Kf8+–) 23...gf6 24.Ba3+–) 
    23.fg7 Rfd8 
       (23...Re8 24.Qe2 Qd2 25.Rfe1+–) 
       (24.Bf6 Re8 25.Qd5 ed5 26.Rfe1+–) 
    (62) Sternik,Ryszard – Frenzel,Lothar
    corr SOK–115, 1999
    1.b4 Nc6 2.b5 Nd4 3.e3 Nf5 4.c4 d5 
       (4...e5 5.Bb2 d6 6.d4 ed4 7.ed4=) 
    5.cd5 Qd5 6.Nc3 
       (6.Qc2 Nh4 7.f3 Qg5+=) 
    6...Qd8 7.Nf3 
       (7.d4 e6+=) 
       (7...e6 8.d4+=) 
       (8.Qa4 Nd7+=) 
    8...e6 9.d4 Bb4 
       (9...Bd7 10.e4 Ne7 11.Ne5+=) 
    10.Bd3 Ne7 
       (10...0–0 11.0–0+=) 
       (11.a3 Bd6+/–) 
       (11...Ned5 12.Qb3+=) 
    12.Qc2 h6 
       (12...c6 13.e4+=) 
       (13.a3 Ba5+/–) 
       (13...Bd7 14.e4+/–) 
       (14.e4!? Bf4 15.Rcd1+/–) 
    14...Ne4+= 15.Be4 f5 
       (15...a6 16.ba6 Ra6 17.a3=) 
    16.Bd3 Nd5 17.Bc4 
       (better is 17.Qb3+/–) 
       (better is 17...Qe8!?+=) 
    18.Qf5+– Nd5 
       (18...Qe8 19.Qd3+–) 
    19.Qe4 Kh8 
       (19...Qe8 20.Bd5 ed5 21.Qd5 Be6 22.Qb7+/–) 
       (20.Ne5 Kg8+–) 
    20...Nf6 21.Qg6 Qe8 
       (21...Bd7 22.Ne5 Be8 23.Qc2+–) 
    22.Qe8 Re8 23.Ne5 Kg8 24.Bd3 
       (24.f4 a6+–) 
       (24...a6 25.ba6 ba6 26.Nc6+–) 
       (25.e4 Kg7+–) 
       (25...Nd5 26.Nd6 cd6 27.Be4+–) 
       (26.e4 Rd8+–) 
    26...Nd5 27.Ne5 Bd6 28.a3 
       (28.e4 Nf4 29.Rfd1 Rd8+–) 
       (28...a6 29.ba6 ba6 30.Nc6+–) 
       (29.g3 a6+–) 
       (29...a6 30.Nc4+–) 
    30.Rfc1 b6 
       (30...Be5 31.de5 c6 32.bc6 bc6 33.Rc6 Rf2 34.Bd4+– (34.Rc8?! Rc8 
       35.Rc8 Rb2+=)) 
    31.g3 a6 32.Nc4 
       (32.e4 Ne7 33.d5 ed5 34.Rc7 Bc7 35.Rc7 Re8 36.ed5 Bh3+–) 
       (32...ab5 33.Nd6 cd6 34.e4+–) 
    33.e4 Nf6 34.Ne5 Bd6 
       (34...Ne8 35.Nc6 Rf7 36.ba6 Ba6 37.Ba6 Ra6 38.d5 Kf8 39.de6+– (
       39.Ne7?! Re7 40.Rd2 Ra4+/–)) 
       (35.Rc7 Bc7 36.Rc7 Kg8+–) 
    35...ab5 36.e5 
       (36.Bb5?! Ne4 37.Kg2 Nf6= (worse is 37...Ba3 38.Ra1+/–)) 
    36...Ba3 37.ef6 Rf6 
       (37...Kf6 38.Ra1 Bb2 39.Ra8 Bd4 40.Bb5+– (40.Nd4?! Bb7 41.Nc6 Ra8+/–)
       (better is 38.Ba3!? Ra3 39.Ne5 c6 40.Bb5 cb5 41.Rc8 Ra7+–) 
    38...b4 39.d5! ed5 
       (39...Bb7 40.Bd4 Re8+–) 
       (40.Nb4 Bb2 41.Ra8 Bh3 42.Rb2+–; 
       40.Bf6?! Kf6 41.Nb4 Bb7+–) 
    (63) Lohr – Frenzel,Lothar
    corr SOK–90–56, 1990
    1.b4 Nc6 2.b5= Nd4 3.e3 Nf5 4.d4 d5 5.Nf3 Nf6 6.Nbd2 e6 7.c4 Bb4 8.Qb3 
       (8...Ba5 9.Bd3=) 
    9.Bd2+= 0–0 10.Bd3 Ne7 
       (10...dc4 11.Qc4 Nd6 12.Qc2+=) 
    11.0–0+/– a5 12.c5 h6 
       (12...Ne4 13.Qc2+/–) 
    13.a4 c6 
       (13...Ne4 14.Qc2+/–) 
    14.b6 Re8 15.Ne5 Nf5 16.Qc2 Nd7 17.Nd7 Bd7 18.Bc3 Qg5 19.Qd2 Nh4 The 
    mate threat is Qxg2 20.f4 Qg4 21.Ra2 Nf5 22.Rf3 f6 23.h3 White 
    launches an attack 23...Qh5 24.g4 Nh4 25.Rf1 
       (25.gh5 Nf3 26.Kf1 Nd2 27.Rd2 Red8–/+) 
    25...Qf7 26.Qf2 Ng6 27.Qe1 Re7 28.Re2 Qe8 29.Bc2 
       (29.g5 e5 30.gf6 ed4 31.Bd4 Bh3 32.fe7 Bf1 33.Qf1 Ne7+–) 
    29...e5 30.de5 fe5 31.f5 Nf8 32.e4 d4 33.Ba5 Nh7 
       (33...Qf7 34.Qb4 Qf6 35.Bb3 Kh8 36.Rd1+/–) 
    34.Bb3 Kh8 35.Bd2 Qf8 36.Qh4 Qf6 37.Qg3 Be8 
       (37...Ree8 38.Qd3+/–) 
    38.h4+– White prepares g5 38...Qf8 39.g5 h5? 
       (better is 39...Bf7+–) 
    40.f6! gf6 
       (40...Qf6 41.gf6) 
    41.gf6 Nf6 
       (41...Rf7 42.Bf7 Bf7 43.Qe5 Ra4+–) 
    42.Rf6! Qf6 Theme: Deflection from g8 
    43.Qg8 1–0
    (64) Gross,Wilhelm – Frenzel,Lothar
    corr SOK–90–56, 1990
       (1.e4 d5 2.ed5 Qd5+=) 
       (1...e5 2.Bb2=) 
    2.b5= Nd4 3.e3 Nf5 4.e4 Nd6 
       (4...Nd4 5.Nf3 Nf3 6.Qf3=) 
    5.Nc3+= c6 6.Nf3 
       (6.a4 Qa5+=) 
    6...cb5= 7.Bb5 Nb5 8.Nb5 a6 
       (8...Nf6 9.e5 Ne4 10.0–0=) 
    9.Nc3 g6 
       (9...b5 10.a3+=) 
    10.Bb2+/– Bg7 11.d4 
    11...d6= 12.0–0 Bg4 13.Nd5 Rc8 14.Ne3 White begins to deal mighty blows
     14...Bd7 15.c4 Nf6 16.e5 Ne4 
       (16...de5 17.Ne5 b5 18.c5=) 
    17.Qc2+= f5 
       (better is 17...Bf5+=) 
    18.e6!+– Be6 19.d5 Discovered attack 19...Bd5 20.Nd5 0–0 
       (20...e5 21.Qa4 Kf7 22.Rab1+–) 
    21.Bg7 Kg7 22.Qb2 Nf6?! 
    23.Ng5 Qd7 24.Nb6 
       (24.Nb6 Qc6 25.Ne6 Kf7 26.Rae1+–) 
    (65) Rohde,Friedhelm – Frenzel,Lothar
    corr 3GMM–28, 1995
    1.b4 Nc6 last book move 2.b5 Nd4 3.e3 Nf5 4.e4 Nd6 
       (4...Nd4 5.Nf3 Nf3 6.Qf3=) 
    5.Nc3+= c6 6.Nf3 
       (6.a4 Qa5+=) 
    6...cb5= 7.Rb1 
       (7.Bb5 Nb5 8.Nb5 a6+=) 
    7...a6 8.d3 f6 
       (8...b6 9.Be2=) 
    9.Be3 e6 10.Rb3 Nf7 11.Be2 Bd6 
       (11...d5 12.a3=) 
    12.0–0 Ne7 13.a4 b4 
       (13...ba4 14.Na4 b5 15.Nb6=) 
    14.Na2 a5 
       (14...Qa5 15.c3=) 
       (15.c3 f5=) 
       (15...Qc7 16.Nc1=) 
    16.c3 bc3 17.Nc3 Bc7 18.Qc2 d5 19.Nb5 
       (19.Rfc1 Bd6=) 
    19...Bb8 20.Rfc1 Ra6 21.Nc3 
       (21.Qb3 Rc6=) 
       (21...Rc6 22.Nd4 Qd6 23.g3=) 
    22.Nd5 Nd5 23.ed5 Ba7 
       (23...Nd6 24.Qb2 Ba7 25.Rc2=) 
       (24.d4 Rb6+=) 
    24...Ra7 25.d4 Bg4 26.de5 fe5 27.Qb3 Exerts pressure on the backward 
       (27.Qe4 Bf3 28.Bf3 Ng5=) 
       (27...e4 28.Nd4 Ne5 29.d6 Rf7 30.Bg4 Ng4+–) 
    28.Qe3 White is in command 28...Rfa8 29.Rc7 Bf3 
       (29...e4 30.Qe4 Bf5 31.Qf4 Bb1 32.Qf6 gf6 33.Nd4–+) 
       (30.Qf3 Qf3 31.Bf3 Rd8+/–) 
    30...Nd6 31.Bg4 Qf4 
       (31...Kh8 32.Re1+/–) 
    32.Qf4 ef4 33.Rd7 Nc4 
    34.Be6 Kh8 35.d6 Ne5 36.Rc7 Nc6 
       (36...Rd8 37.d7 f3 38.Rbb7 (38.Rcb7?! Rb7 39.Rb7 g5+–) 38...Rb7 
       (37.Rcb7?! Rb7 38.Rb7 Nd8+–; 
       37.Rbb7?! Rb7 38.Rb7 Nd8+–) 
       (38.Bb7?! Nb7 39.Rbb7 Rb7 40.Rb7 Rd8+–) 
    38...h5 39.Re8 Kh7 40.Rd8 
       (40.Bf5 Kh6 41.h4 Nf7 42.Re6 g6 43.Rg6 Kh7 44.Rf7 Kh8+–) 
    40...b5 41.Bf5 Kh6 42.Ra8 Ra8 43.Bc8 Ra6 44.Ba6 
       (44.Ba6 g5 45.d7+–) 
    (66) Hasler,Ulrich – Frenzel,Lothar
    corr SOK–88–25, 1989
    1.b4 Nc6 2.b5 Nd4 3.e3 Nf5 4.e4 Nd6 5.Nc3 e5 6.Nf3 Qe7 
       (6...Nf6!? 7.Bd3 Qe7+=) 
    7.Nd5+/– Qd8 8.Ne5 Nf6 9.Qf3 Nd5 10.ed5 Qe7 11.Qe3 
       (better is 11.Qh5+=) 
    11...Nf5–/+ 12.Qe2? 
       (better is 12.Qc3 d6 13.d4–/+) 
    12...Nd4–+ 13.Qe4? 
       (13.Ng6 hg6 (13...Ne2 14.Ne7 Nc1 15.Nc8+=; 13...Qe2?! 14.Be2 hg6 
       15.Bd3–+; 13...fg6?! 14.Qe7 Be7 15.Bd3–+) 14.Qe7 Be7–+) 
    13...Nc2!! 14.Qc2 Theme: Deflection from e5 
       (14.Kd1 Na1 15.Qd4–+) 
    14...Qe5 A double attack 15.Be2 Qa1 16.Qb2 
       (16.Qc7 Qa2 17.Qe5 Kd8–+) 
    16...Qb2 17.Bb2 d6 
       (17...a6 18.ba6 ba6 19.Kd1–+) 
    18.0–0 Bf5 19.Re1 0–0–0 20.Bf3 Rg8 21.h3 g5 
       (21...Kd7 22.Bd4–+) 
       (22.Bf6 Bg7 23.Bd8 Kd8 24.Kf1–+) 
       (better is 22...Bg7 23.Bc3 Rd7–+) 
    23.Re8= Rd8 24.Rd8?? 
       (24.Re1 Bg7 25.Bc3–+) 
    24...Kd8–+ 25.Bf7 Rg7 26.Bg7 Bg7 27.Bh5 Bd3 
       (27...Bd3 28.a4 Bc2–+) 
    (67) Woschkat,Karl_Heinz – Frenzel,Lothar
    corr SOK–91–71, 1991
    1.b4 Nc6 2.b5= Nd4 3.e3 Nf5 4.e4 Nd6 5.Nc3 e5 6.Nf3 Nf6 7.d3 Be7 
       (7...Qe7 8.Bg5 Nb5 9.Nd5=) 
       (8.Ne5 c6 9.a4 a6+/–) 
       (8...c6 9.a4+=) 
    9.Ne5+/– Nde8 10.Be2 d6 11.Nf3 a6 12.0–0 ab5 13.Nb5 c6 14.Nbd4 Nc7 15.c4 
       (15...c5 16.Nb3+/–) 
    16.Qb3 Na6 17.Nf5 Bf6 18.d4 c5 19.Rab1 
       (19.Rfd1 Bf5 20.ef5 cd4 21.Qb7 d3–/+) 
    19...cd4 20.N3d4 Nc5 21.Qc2 Be5 22.f4 Bf6 23.Bb4 Nc7 
       (23...Qb6 24.Bc3 Qa7 25.Ra1+/–) 
    24.e5+– Be7 25.Ne7 Qe7 26.Bd3 h6 27.Rfe1 N7a6 28.Bh7 Kh8 29.Bc3 Ne6 
       (29...de5 30.Re5 Qh4 31.Nf5 Bf5 32.Qf5+–) 
    30.Nf5 Qd7 
       (30...Qc7 31.Nd6 g6 32.f5 Kh7 33.fe6 fe6 34.Bd4+–) 
    31.Nd6 Nf4 32.Bf5 Ne6 33.Qf2 Qe7 34.Rf1 Nac5 
    35.Be6 Ne6 36.Bb4 
       (36.Nf7?! Kg8 37.Bb4 Qf7 38.Bf8 Qf8 39.Qf8 Nf8+=) 
       (36...Qg5 37.Nf7 Rf7 38.Qf7 Ra2 39.Rf2 Rf2 40.Qf2 Qe5 41.Re1+–) 
       (37.Nb5 Qe5 38.Bf8 Nf8+–) 
    37...Rf7 38.Qf7 Qf7 
       (38...Qc4 39.Rbc1 Qd4 40.Kh1 Qb4 41.Qe8 Kh7 42.Rc8 Rc8 43.Qc8+– (
       43.Qe6?! Qf4 44.Rg1 Rc5+=)) 
    39.Rf7 Ra2 40.Rbf1 
       (40.Bd6 Kg8 41.Rbf1 Kh7+–) 
    40...Ra4 41.Re7 Rb4 
       (41...Kh7 42.Re8+–) 
    42.Re8 Kh7 43.Rc8 Kg6 44.g3 b5 
       (45.Rc6 bc4 46.Re6 Kg5 47.h4 Kh5 48.Rc6+–) 
    (68) Spiegel,Ulrich – Frenzel,Lothar
    corr, 1989
    1.b4 Nc6 2.b5 Nd4 3.e3 Nf5 4.e4 Nfh6 5.c4 e5 6.Nf3 d6 7.Nc3 Nf6 8.d3 
       (8.Be2 a6=) 
       (8...Nhg8 9.Be2+=) 
    9.Bg5 Be6 10.d4 ed4 11.Nd4 Bg7 12.Qd2 Nhg4 13.f3 Ne5 14.Ne6 fe6 15.Be2 
    0–0 16.0–0 Qd7 17.Be3 Nf7 18.Rfd1 b6 19.a4 Rac8 
       (19...a5 20.f4+=) 
    20.a5+/– Ne8 21.ab6 ab6 22.Ra7 Qd8 23.Rda1 Qf6 24.R1a3 Qh4 25.Bf2 Qh5 
       (25...Qf6 26.f4+/–) 
    26.f4 Bc3 27.Rc3 Qh6 28.Rh3 Qg7 29.Rha3 
       (29.Bg4 Qf6+–) 
    29...Qf6 30.Bg4 Nh6 
    31.Bd4+– Qf7 32.Bh3 Nf6 33.Bb6 Nfg4 34.g3 e5 35.Qe2 ef4 36.Bg4 Ng4 37.Rf3 
       (better is 37.Qg4 fg3 38.Ra1+–) 
    37...Qe6+/– 38.Rc7 Rc7 
       (38...fg3!? 39.hg3 Rfe8+/–) 
    39.Bc7 fg3 40.Rf8 Kf8 41.hg3 Ne5 42.b6 Qd7 
    43.Qb2 Kf7 
       (43...Nf3 44.Kg2 Ng5 45.Qf6 Nf7 46.Kf3+–) 
    44.b7 Qg4 
       (44...Nc6 45.b8Q Nb8 46.Qb8 Ke7+–) 
    45.Qf2 Ke6 46.b8Q Nf3 47.Qf3! 
       (47.Qf3 Qf3 48.Qe8 Kf6 49.Qf8 Ke6 50.Qf3+–) 
    (69) Woschkat,Karl_Heinz – Frenzel,Lothar
    corr SOK–92–83, 1992
    1.b4 Nc6 2.b5= Nd4 3.e3 Nf5 4.e4 Nh4 5.Bb2 d6 6.f4 Ng6 7.f5 Ne5 
       (7...e6!? 8.fg6 Qh4 9.Ke2 Qh5 10.Ke1 Qh4 11.Ke2 Qh5 12.Ke1 Qh4 
    8.d4+= Nd7 9.Nd2 Ngf6 10.c4 a6 11.e5 de5 12.de5 Ng8 13.e6 Ndf6 14.ef7 Kf7 
    15.ba6 Ra6 
       (15...ba6 16.Qf3 Rb8 17.Be5=) 
    16.c5 Ra5 17.Bc4 Ke8 18.Qb3 
       (better is 18.Nb3 Qd1 19.Kd1+/–) 
       (better is 18...Nh6=) 
       (19.Qb7?! Rc5 20.Ngf3 Nh6+=) 
    19...Kd7 20.Nc4 Qa8 21.Rd1 
       (better is 21.0–0–0 Kc8 22.Na5 Qa5 23.Be6 Be6 24.Qe6 Kb8 25.Rd8 Ka7+–) 
    21...Kc8 22.Be6!! Be6 
       (22...Nd7 23.Bf5 Ngf6 24.Bf6 ef6 25.Bd7 Kb8+–) 
    23.Nb6! cb6 24.Qe6 
       (24.Qe6 Nd7 25.Qd7 Kb8 26.Qd8 Ka7 27.Qb6 Kb8 28.Rd8) 
    (70) Jacewicz,Grzegorz – Frenzel,Lothar
    corr 3GMM–28, 1996
    1.b4 Nc6 2.b5 Nd4 3.e3 Nf5 4.e4 Nh4 5.Bb2 
       (5.d4 d5 6.Bg5 Ng6=) 
       (5...d5 6.Qh5 e6 7.Nc3=) 
    6.Nf3+= d6 7.d4 Bg4 
       (7...Nf6 8.Bd3+=) 
       (8.h3 Bh5+=) 
       (8...Nf6 9.h3 Bf3 10.Qf3+=) 
    9.h3 Bd7 
       (9...Bf3 10.Nf3 Nf6 11.Bd3+=) 
    10.de5+/– de5 11.Ne5 Ne5 12.Be5 Ne7 13.Bb2 
       (13.Bc4 Ng6 14.Bb2 Qg5+/–) 
       (13...Be6 14.Bc4+/–) 
       (14.Bc4 Qg5 15.Qf3 Be6 16.Be6 fe6+/–) 
       (14...Be6 15.c5+/–) 
       (15.Bd4 Nf4 16.Qf3 a6+/–) 
       (15...0–0–0 16.Rd1+/–) 
       (16.Nf3 Qf4 17.Bd3 0–0–0+/–) 
    16...0–0–0 Threatening mate: Qxd2 17.0–0–0 
       (17.f4 Qh6+/–) 
       (17...Qh6 18.f4 Bg4 19.Re1+/– (worse is 19.hg4 Qh1 20.f5 Ne7=)) 
    18.f4+/– f5 
       (18...Bd7 19.Nf3 f5 20.ef5 Qf5 21.Bg2+–) 
       (19.Bd3 Ne7+/–) 
    19...Bf5 20.Qf3 Kb8 
       (20...Qb6 21.g4 Bd7 22.f5+–) 
    21.Bg2 Do you see the mate threat? 21...c6 22.bc6 Rd3 23.Qh5 Rg3 
       (23...bc6 24.Be4 Be4 25.Qc5 Rd2 26.Qf8 (worse is 26.Kd2 Bc5 27.Bg7 Bb4 
       28.Ke3 Re8+=) 26...Rf8 27.Kd2 Bh1 28.Rh1+–) 
    24.Be4 Be4 25.Qc5 Bc5 26.Ne4 Be3 27.Kb1 Rf3 28.f5 
       (28.Rd7 bc6 29.Bg7 Rg8+–) 
    28...Rf5 29.cb7 Rg8 
       (29...Re8 30.Nd6 Rff8 31.Bg7+–) 
    30.Rd7 Ne5 31.Rd5 Bf4? 
       (better is 31...Re8!?+–) 
    32.Rf1 g5 33.Nd6 Rgf8 
       (33...Rf6 34.Rf4! gf4 35.Be5 Rg1 36.Kc2 Rg2 37.Kd3 Rd6 38.Bd6 Kb7 
       39.Bf4 Rg7+–) 
       (34.Be5 Be5 35.Nf5 Bf4+–) 
    34...Nc6 35.Rf4! Rc5 
       (35...gf4 36.Rc6) 
       (36.Rf8 Kc7 37.Rc8 Kd6 38.Rc6 Kc6 39.b8Q Rc4 40.Qc8 Kd5 41.Qd7 Kc5 
       42.Qa7 Kc6 43.Qh7+–) 
    (71) Zimmer,Georg – Frenzel,Lothar
    corr Bilguer, 1990
    1.b4 Nc6 2.b5 Nd4 3.e3 Nf5 4.Nf3 d5 5.Bb2 e6 6.c4 Nf6 7.Bd3 Be7 
       (7...dc4 8.Bc4 Nd6 9.Be2=) 
    8.0–0= dc4 9.Bc4 0–0 10.a4 
       (10.d4 a6=) 
    10...Nd6 11.Ne5 Nc4 12.Nc4 Bd7 
       (12...Qd3 13.Ne5 Qd6 14.d3=) 
    13.Bf6 Bf6 
       (worse is 13...gf6 14.Qg4 Kh8 15.d4+=) 
    14.Nc3 c6 
       (14...Rc8 15.Qf3 c6 16.Nd6=) 
    15...cb5+= 16.Nb5 Bc6 
       (better is 16...Bb5 17.Rb5 Qd3+=) 
       (better is 17.Nbd6=) 
    17...Qd5–+ 18.Qb3 
       (18.f3 Qc4 19.Nd6–+) 
    Qg2 0–1
    (72) Rohde,Friedhelm – Frenzel,Lothar
    corr SOK–92–86, 1992
    1.b4 Nc6 2.b5 Nd4 3.e3 Nf5 4.Nf3 d5 5.Be2 Nf6 6.0–0 g6 
       (6...a6 7.ba6 ba6 8.d4=) 
    7.c4 dc4 8.Bc4 Nd6 9.Be2 Bg7 
       (9...a6 10.ba6 b6 11.Bb2+=) 
    10.d4 0–0 11.Nc3 Bd7 12.Ba3 Rc8 13.Rc1 c6 14.Qa4 cb5 15.Qa7 Ra8 
       (15...Nc4 16.Bc5+=) 
    16.Qc5+/– Qa5 17.Bb4 Qa6 
       (17...b6 18.Qd6 (worse is 18.Ba5 bc5 19.dc5 Ra5 20.cd6 ed6=) 18...ed6 
       19.Ba5 Ra5 20.Rb1+=) 
    18.a4 Qc6 19.ab5 Qc5 20.dc5 Nc8 
       (20...Nf5 21.e4 Nh6 22.e5+–) 
       (21.Rfd1 h6+–) 
       (21...Bf5 22.c6 bc6 23.Nc6+–) 
    22.Bf3 White plans c6 
       (22.c6 bc6 23.Nc6 Re8+–) 
       (better is 22...Nd5!? 23.Nd5 Be5+–) 
    23.c6 White launches an attack 23...bc6 24.Nc6 White creates 
    threats along the open c–file 24...Rb7 25.Nd4 Rc7 
       (25...Rb6 26.Na4 Rb8 27.Nc5+–) 
    26.Ne6 fe6 27.Ne2 Rc1 28.Rc1 
       (28.Nc1?! Nd6+–) 
    28...Nd5 29.Bd5 
       (29.Bc5 Kf7+–) 
    29...ed5 30.Nf4 Nd6 
       (30...Nb6 31.Be7 Ra8 32.Bc5+–) 
       (31.Bd6 ed6 32.Nd5 Ra8+–) 
    31...d4 32.Bd6 
       (32.Ne6 Rb8 33.Bd6 ed6+–) 
    32...ed6 33.b7 With the decisive threat Rc8 33...Be5 34.Nd3 de3 
       (35.fe3 Kg7 36.Rc8 Rc8 37.bc8Q+–) 
    (73) Husslein – Frenzel,Lothar
    corr SOK–87–16, 1987
    1.b4 Nc6 2.b5 Nd4 3.e3 Nf5 4.Bb2 d5 5.Nf3 e6 6.c4 Nf6 7.d4 Ne4 8.Qc2 Bb4 
    9.Bc3 Nc3 10.Nc3 0–0 11.a3 Ba5 12.Bd3 dc4 13.Bc4 Nd6 
       (13...Bd7 14.0–0=) 
    14.Bd3 Bd7 15.a4 c6 16.Ke2 
       (16.0–0 Rc8 17.Bh7 Kh8=) 
       (16...Rc8 17.Bh7 Kh8 18.Ne4 cb5 19.Qb1=) 
       (17.Bh7 Kh8 18.Bd3 cb5 19.Nb5 Qc2 20.Bc2 Nb5 21.ab5 Bb5 22.Bd3 Bd3 
       23.Kd3 Bb4+=) 
       (better is 17...Ne4!? 18.Be4 f5=) 
    18.Ne5+/– White gets the initiative 18...Be8 19.bc6 bc6 20.Nc5 Qc8 
    21.g4+– Nh4 
       (21...Ne7 22.Bh7 Kh8 23.Bd3+–) 
    22.Bh7 Kh8 23.Be4 
       (23.Bd3 Bc7+–) 
    23...f6 24.Nf3 
       (24.Nc4 Bc7+–) 
    24...Nf3 25.Bf3 Bb4 
       (25...e5 26.Rad1+–) 
    26.h4 a5 27.Rac1 Ra7 
       (27...e5 28.h5+–) 
    28.h5 Re7 29.Nd3 Qa6 
       (29...Ba3 30.Ra1 Bd6 31.h6+–) 
       (30.Bc6 Rc7 31.Qc4 Qc4 32.Rc4 Rc6–/+) 
    30...Qc4 31.Rc4 c5 32.Nc5 
       (32.dc5?! Ba4 33.c6 Rc7+–) 
    32...Rc7 33.Rhc1 Rc5 34.Rc5 
       (34.dc5?! Ba4 35.Rb4 ab4+–) 
    34...Bc5 35.Rc5 Ba4 36.Ra5 Bb3 37.Be4 Kg8 38.Bg6 Bc4 39.Kd2 Rb8 40.e4 Kf8 
    41.f4 White plans g5 41...Rb7 
       (41...Rb2 42.Kc3 Ra2 43.Rc5+– (43.Kc4?! Ra5 44.e5 fe5 45.fe5 Ra1+=)) 
    42.Kc3 Rc7 43.Rc5 Rc5 44.dc5 Be2 45.g5 
       (45.c6 Ke7 46.g5 e5+–) 
       (45...e5 46.fe5 fg5 47.c6+–) 
    46.fg5 Bb5 47.Kd4 Ke7 48.Ke5 Bd7 49.h6 gh6 50.gh6 
       (50.gh6 Kf8 51.Kd6+–) 
    (74) Andre,Karl – Frenzel,Lothar
    corr SOK–91–71, 1991
       (1.e4 d5 2.ed5 Qd5+=) 
       (1...e5 2.Bb2=) 
    2.b5= Nd4 3.e4 e5 4.Nf3 Nf3 5.Qf3 Nf6 6.Be2 
       (6.Bc4 Bc5=) 
    6...Be7 7.Bb2 d6 8.h3 0–0 
       (8...Be6 9.0–0=) 
    9.0–0 Bd7 
       (9...Be6 10.c4=) 
       (10.d4 ed4 11.Bd4 Be6+=) 
    10...c6 11.c4 h6 
       (11...d5 12.ed5 e4 13.Qf4 cd5 14.cd5+=) 
    12.d4+= ed4 13.Bd4 cb5 
       (13...Qa5 14.Rd1+=) 
    14.ab5 a6 15.Nc3 Qc8 
       (15...Re8 16.ba6 ba6 17.Rfb1+/–) 
    16.Nd5 Nd5 17.ed5 Bf5 18.Qg3 The mate threat is Qxg7 18...Bg6 19.b6 
    Qf5 20.Rfe1 Rfe8 
       (20...Bf6 21.Bg4 Qg5 22.Be3+=) 
       (21.Bg4 Qd3 22.Qd3 Bd3+/–) 
       (21...Qg5 22.Bg4+=) 
       (22.Bd3 Qg5 23.Qg5 Bg5 24.Bg6 fg6 25.Re8 Re8+=) 
    22...Qc2+= 23.Bh5 Bf8 
       (23...Rc8 24.Rc1 Qd3 25.Qg4+=) 
    24.Bg6+/– fg6 25.Bc3 
       (25.Be3 Qc4 26.Qg6 Rc8+/–) 
    25...g5 26.Re8 Re8 
       (26...Re8 27.Ra1 Re4+=) 
    Line +=
    (75) Wall,Bill – Frenzel,Lothar
    corr, 2006
    1.b4 Nc6 2.b5 Ne5 3.d4 Ng6 4.e4 e5 5.Bc4 c6 
       (5...Nf6 6.Nf3 Ne4 7.de5+=) 
       (6.Ne2 d5 7.ed5 cd5=) 
    6...dc6= 7.Nf3 ed4 8.Nd4 
    8...Bc5+= 9.Be3 
       (9.c3 Nf6 10.0–0 0–0+=) 
       (9...Nf6 10.0–0 Ng4 11.Nf5 Ne3 12.Qd8 Kd8 13.Ne3–/+) 
    10.Be2 Nf6 11.f3 0–0 
       (11...Qb6 12.Nc3+=) 
    12.0–0 Qe7 
       (12...Qc7 13.Qd2+=) 
       (13.Qe1 Nh5+=) 
    13...Nd5 14.Bf2 
       (14.ed5 Ng4 15.fg4 Qe3 16.Kh1 Bd4+=) 
       (14...Nf4!? 15.N2b3 Bd4 16.Bd4 Rd8–/+) 
    15.Qe1 Rd8 16.N2b3 Bb4 17.a3 Ne2 18.Qe2 Ba3 19.c3 
       (19.Nf5 Bf5 20.ef5 Nd7 21.Qe7 Be7+=) 
       (19...a5 20.f4 Ng4 21.f5 Nf2 22.Qf2–+) 
       (20.f4 Ng4 21.e5 Nf2 22.Qf2 Bc7–/+) 
       (20...c5 21.Nb5 Bb8 22.Be5 Qe5 23.f4–/+) 
       (21.Rfe1 Bc7–/+) 
    21...Bc7 22.Nd2 
       (22.Qe1 a5–+) 
    22...b5–+ 23.Nf1 Bd7 
       (23...Qc5 24.Ne3 Bb6 25.Kh1–+) 
    24.Ne3 a5 25.Qc2 
       (25.c4 b4 26.Qc2 Bb6–/+) 
    25...Bb6 26.Kh1 Qf6 
       (26...Qc5 27.Qb2–+) 
       (27.f4 Ng4 28.Nf1 Qe7–+) 
    27...Bf5 28.Nf5 Nc4 29.Bh4 Rd1 30.Rd1 Qe6 31.Qc1 
       (31.Bf2 Bc7–+) 
    31...h6 32.Qf4 
       (32.Nd4 Bd4 33.cd4 a4–+) 
    32...Kh7 33.Bg3 
       (33.Qc1 a4–+) 
    33...a4 34.h4 
       (34.Qc1 a3–+) 
    34...a3 35.Ra1 
       (35.Qc1 a2 36.Qa1 Ra3–+) 
    35...a2 36.h5 
       (36.Qc1 Qd7 37.Bf4 Qd8–+) 
       (36...Na5 37.Qg4 g5 38.Nh6 Kh6 39.Qe6 fe6 40.Ra2–+) 
       (37.Be1 Qf6 38.g4 b4–+) 
    37...Qe5 38.Qc1 Ba5 39.Be1 Nd6 40.Ng3 
       (40.Nd6 Qh5 (worse is 40...Qd6 41.Qc2 Qc5 42.e5 Kg8 43.Qf5 Bc3 44.Qc8 Qf8 
       45.Qf8 Kf8 46.Bc3–+) 41.Kg1 Qc5 42.Kh1 Qd6–+) 
    40...Bb6 41.Qc2 
       (41.Kh2 f5 42.f4 Qe7–+) 
       (41...f5!? 42.Bf2 Bf2 43.Qf2 fe4 44.Kg1–+) 
    42.Kh2 Nc4 43.Qe2 
       (43.Kh3 Qe5 44.Bf2–+) 
    43...Qg1 44.Kh3 Bc7 45.Qd3 
    45...Ne3 46.Qe2 Bg3 47.Kg3 f5 
       (47...f5 48.Ra2 Ra2 49.Qa2 Qe1 50.Kf4 fe4 51.fe4 Nc4–+; 
       47...g5 48.hg6 Kg6 49.Bd2 Qa1 50.Qe3–+) 
    (76) Fournier,Frederic – Frenzel,Lothar
    corr B4/07/33, 2007
    1.b4 Nc6 2.b5 Ne5 3.d4 Ng6 4.Nf3 
       (4.e3 e5 5.Bb2 e4 6.c4 Nf6 7.Qc2 d5 8.cd5 Bb4 9.Bc3 Be7 10.Bd2 Bf5 
       11.Nc3 Bb4 12.Nge2 0–0 13.Ng3 Bc3 14.Bc3 Nh4 15.Nf5 Nf5 16.Bc4 Nd5 
       17.Qe4 Nfe3 18.fe3 Nc3 Mehlhorn,U (2440)–Brueske,T (2355)/RSS5D 
       pro–17 2004/ฝ–ฝ (52); 
       4.c4 e6 5.Nc3 Bb4 6.Bb2 Nf6 7.Nf3 0–0 8.Qb3 Bc3 9.Bc3 d5 10.c5 a6 
       11.e3 ab5 12.Bb5 Ne4 13.Bd3 Nc3 14.Qc3 Ne7 15.Qc2 g6 16.h4 h5 17.Ne5 
       Nf5 18.Bf5 ef5 iczker–storgris2622368 kurnik 2011/0–1 (76)) 
    4...Nf6 5.e3 d5N 
       (5...d6 6.c4 a6 7.Nc3 ab5 8.cb5 h5 9.Bc4 Bg4 10.Qb3 e6 11.Ng5 d5 
       12.Be2 Be2 13.Ne2 Bd6 14.Qc2 Ng4 15.Ne6 Qf6 16.N6f4 Nh4 17.Kf1 g5 
       18.Nd3 Nh2 19.Rh2 Bh2 20.Ne5 Hermann,H–Aasum,A/corr SOK–90–55 1991/
    6.Bd3 Bg4 7.Nbd2 e5 8.Bg6 hg6 9.de5 Ne4 10.Bb2 Bb4 11.c3 Be7 
       (11...Nc3? 12.Qb3 Na2 13.Ra2 Bf3 14.gf3 Bd2 15.Kd2+–) 
    12.Qa4 Nd2 13.Nd2 Qd7 14.Ba3 
       (14.c4!? dc4 15.Qc4=) 
    14...Ba3+= 15.Qa3 Qb5 16.f3 Bf5 17.Nb3 Qc4 18.Nd4 Bd3 19.Kf2 
       (19.Qb3 0–0–0+=) 
    19...c5 20.Nb3 b6 21.Rac1 Kf8 22.f4 g5 23.Nd2 Qb5 24.fg5 Qd7 25.Nf3 Kg8 
    26.h4 Qg4 27.Rcd1 Be4 28.Qa6 Rh5 29.Rd2 Qf5 30.Rh3 c4 
       (30...Qe6 31.Qb7 Re8 32.Qa7=) 
    31.a4 Qd7 32.a5 ba5 33.Qa5 Attacks the backward pawn on d5 33...Rb8 
    34.Qc5 Rb6 35.Rh1 Qf5 36.Qe7 Kh7 37.Qa7 Rb3 38.Qd4 Qg4 39.Ra2 Rb7 40.Rh3 
    Qc8 ฝ–ฝ
    (77) Frenzel,Lothar (2035) – Perez Fernandez,Jose Vicente (2425)
    Slovenia's, 2008
    1.b4 Nf6 2.Nf3 e6 3.a3 d5 4.e3 c5 5.bc5 Bc5 6.d4 Bd6 
       (6...Be7 7.c4 0–0 8.Nc3 b6 9.cd5 ed5 10.Bd3 Bb7 11.0–0 Nbd7 12.Ne5 
       Ne5 13.de5 Ne4 14.Bb2 Rc8 15.Ne2 Re8 16.Nf4 Bf8 17.Qg4 Qg5 18.Qh3 g6 
       19.e6 f5 20.Bb5 Re7 21.Rad1 Elorta,D (2360)–Bagamasbad,E (2255)/1st 
       Campomanes Memorial Cup Open, Manil 20) 
         A) 7...dc4 8.Bc4 0–0 9.0–0 Bd7 10.Nbd2 Qc7 11.Qe2 Nc6 12.Bb2 a6 
          13.e4 Be7 14.Rac1 Qb6 15.Rc2 Na5 16.Ba2 Ba4 17.Rfc1 Bc2 18.Rc2 Rac8 
          19.Rc8 Rc8 20.Nf1 Ne4 21.Ng3 Ng3 22.hg3 futsalboy (1660)–boss2384/
          kurnik 2011/0–1;
         B) 7...b6 8.cd5 Nd5 (8...ed5 9.Bb5 Bd7 10.a4 0–0 11.Ba3 Ba3 
          12.Ra3 Qe8 13.Qb3 8...ed5) 9.e4 Ne7 10.Bd3 0–0 11.e5 Bc7 
          12.Bh7 Kh7 13.Ng5 Kg6 14.h4 Qd5 15.h5 1–0 Kuroro 
          Lucifer–Whiterose/ 2005;
         C) 7...0–0 8.c5 Be7 9.Bd3 b6 10.cb6 Qb6 11.0–0 Ba6 12.Nc3 Qa5 
          13.Ne2 Bd3 14.Qd3 Ne4 15.Nd2 Nd2 16.Bd2 Qa6 17.Nf4 Bd6 18.Bb4 Rd8 
          19.Bd6 Qd6 20.Rfc1 Nd7 21.h4 Rdc8 Malmstroem,J–Bennett,H/email 
          4AMM–F 1998/ฝ–ฝ) 
    7...0–0 8.Nbd2 Nbd7 9.0–0 e5 10.de5 Ne5 11.Bb2 Nd3 12.cd3 Nd7 
       (12...Bf5 13.Qb3+=) 
    13.Qc2= Nc5 
       (13...Nb6 14.a4=) 
       (14.Be5 Bf5 15.e4 Bg6+=) 
    14...b6 15.Nbd4 
       (15.Nc5!? bc5 16.e4=) 
    15...Ba6+= 16.Rfd1 Qd7 17.a4 Rfc8 18.Bc3 Rc7 19.Ne2 
       (19.a5 b5 20.Bb4 Rac8+=) 
    19...Rac8 20.Nfd4 
       (20.h3 f6–/+) 
       (20...h6 21.h3–/+) 
    21.Nb5 Bb5 22.ab5 Bc3 23.Qc3 
       (23.Nc3?? Ne6–+) 
    23...Qb5 24.Nd4 Qd7 25.Qb4 Ne6 26.Nf5 g6 27.Nd4 Nd4 28.Qd4 Rc5 29.Qb2 
    R8c6 30.Qe5 a5 31.Rab1 Qd6 32.Qd4 b5 33.Qa1 b4 34.d4 Rb5 35.Qa4 Qb8 36.h3 
       (36.Rb3 Kg7–+) 
    36...Rc3 Black intends b3 37.Rb3 Rb3 38.Qb3 Qc7 39.Ra1? 
    39...Qc4 40.Qb2 b3 41.Rc1 
       (41.Kh2 Qc7 42.f4 Qc2 43.Qc2 bc2–+) 
    41...Qb4 42.Rc8 
       (42.Ra1 a4–+) 
    42...Kg7 43.f4 
    43...a4 44.f5 
       (44.Ra8 Ra5 45.Ra5 Qa5–+) 
    44...a3 45.Qf2 Qd6 46.f6 
       (46.e4 Qf6 47.Qf1 Qd4 48.Kh2–+) 
    46...Qf6 47.Rg8 Kg8 48.Qf6 b2 49.Qe7 b1Q 50.Kh2 a2 51.Qe8 Kg7 52.Qe5 Kf8 
    53.Qh8 Ke7 54.Qe5 Kd7 55.Qf6 Qe4 56.Qa6 Rb2 57.Qa4 
       (57.Qa7 Ke6 58.Qa6 Kf5 59.Qf1 Kg5 60.Kg3 a1Q 61.Qf4 Qf4 62.ef4 Kf5 
       63.h4 Qe1 64.Kh2 Qh4 65.Kg1 Rb1) 
    57...Ke6 58.Qe8 
       (58.Qa6 Kf5 59.Qf1 Kg5 60.Kg3 a1Q 61.Qf4 Qf4 62.ef4 Kf5 63.h4 Qe1 
       64.Kh2 Qh4 65.Kg1 Rb1) 
    58...Kf5 59.Qd7 
       (59.Qe5 Qe5 60.de5 a1Q 61.Kg3 Qh1 62.Kh4 Qe1 63.g3 Rb4 64.e4 Re4) 
       (59...Kg5 60.Qd8 Kh6 61.Qf8 Kh5 62.Qh6 Kh6 63.Kg3 Rg2) 
    (78) Frenzel,Lothar – Fournier,Frederic
    corr B4/07/33, 2007
    1.b4 Nf6 2.Bb2 b5 3.a4 ba4 4.Nf3 e6 5.Ra4 Bb7 6.e3 Nc6N 
       (6...Be7 7.Be2 d5 8.Nc3 c5 9.bc5 Bc5 10.0–0 Nc6 11.Qa1 d4 12.ed4 Nd4 
       13.Rd4 Bd4 14.Qa4 1–0 marre–tjevn/internet 2010; 
       6...a6 7.Bc4 d5 8.Bb3 Bc6 9.Ra1 Bb4 10.Ne5 Bb5 11.Nc3 c6 12.Nb5 cb5 
       13.Ng4 Ne4 14.c3 Bd6 15.0–0 h5 16.f3 hg4 17.fe4 Qh4 18.Rf4 Bf4 19.ef4 
       Qh2 20.Kf2 Qf4 21.Ke2 vpccosta (2165)–pcmvr (2775)/net– 
    7.b5 a6?? 
       (better is 7...Nb4+=) 
       (8.bc6 Bc6 9.Ra6+–) 
    (79) Frenzel,Lothar (1720) – Schmidt,Horst (1915)
    BdF, 2006
    1.b4 Nf6 2.Bb2 e6 3.a3 c5 4.bc5 Bc5 5.d4 Qb6 6.Ra2 Be7 7.Nf3 
         A) 7...0–0 
            A1) 8.Bd3 Qa5 9.Nc3 b6 10.Nge2 Ba6 11.0–0 d5 12.e4+=
            A2) 8.c4 d5 9.Nf3 (9.Nc3 Nc6 10.Nf3 Qc7 11.cd5 ed5 12.Bd3= 
            ) 9...Nc6 10.Bd3 dc4 11.Bc4 Bd7 12.0–0=
            A3) 8.Nf3 
               A31) 8...d5 9.Nbd2 (9.Bd3 Qc7 10.Nbd2 a6 11.0–0 b5 12.a4= 
               ; 9.Be2 Bd7 10.c4 dc4 11.Nbd2 Bc6 12.0–0+= 
               ; 9.c4 Nc6 10.Nc3 Qc7 11.cd5 ed5 12.Qb3=
                ) 9...Qc7 10.c4 Nc6 11.Bd3 dc4 12.Nc4=;
               A32) 8...Qa5 9.Bc3 (9.Qd2 Qc7 10.c4 d5 11.Nc3 dc4 12.Ne5= 
               ; 9.Nbd2 Nc6 10.Be2 b5 11.Ne5 Bb7 12.0–0=
                ) 9...Qc7 10.Bb4 d6= 11.Bd3 Nc6 12.0–0= 
         B) 7...Nc6 
            B1) 8.Nf3 d5 (8...0–0 9.Bd3 d5 10.0–0 Bd7 11.Nbd2 Rac8 12.c4= 
               B11) 9.Bd3 
                  B111) 9...0–0 10.0–0 Qa5 (10...Bd7= 11.Nbd2 
                   Rac8 12.c4=) 11.c4 dc4 12.Bc4=;
                  B112) 9...Qa5 10.Qd2 Qc7 11.c4 0–0 12.Qc2=;
               B12) 9.Be2 0–0 10.c4 dc4 11.Bc4 Bd7 12.0–0=;
               B13) 9.c4 0–0 10.Nbd2 Qa5 11.Qb3 Ne4 12.Bd3=;
            B2) 8.c4 d5 9.Bd3 (9.Nc3 0–0 10.Nf3 Qc7 11.Nd2 dc4 12.Bc4= 
            ; 9.Nf3 0–0 10.Nbd2 Qa5 11.Qb3 Ne4 12.Bd3=
             ; 9.Be2 0–0 10.Nf3 Qc7 11.Nbd2 dc4 12.Bc4=; 
             9.Bc3 0–0 10.Nf3 Bd7 11.Bd3 dc4 12.Bc4=) 9...dc4 
             10.Bc4 Bd7 11.Nf3 Rc8 12.Nbd2=;
         C) 7...d5 
            C1) 8.Bd3 
               C11) 8...0–0 9.Nd2 (9.Nf3 Nc6 10.0–0 Qa5 11.c4 dc4 12.Bc4= 
               ) 9...Qc7 10.Ngf3 b6 11.c4 Ba6 12.Ne5=
               C12) 8...Nc6 9.Nf3 Qa5 10.Qd2 Qc7 11.c4 dc4 12.Bc4=
               C13) 8...Bd6 9.Nd2 Na6 10.Ngf3 Qa5 11.0–0 0–0 12.c4+=
               C14) 8...Bd7 9.Nd2 Qa5 10.Ngf3 Bb5 11.Bb5 Qb5 12.c4=/
            C2) 8.Nf3 
               C21) 8...0–0 
                  C211) 9.Bd3 
                     C2111) 9...Bd7 10.Nbd2 Qc7 (10...Ba4= 
                      11.Qe2 Qc7 12.c4=) 11.Qe2 b5 12.0–0= 
                     C2112) 9...Qc7 10.Nbd2 b6 11.c4 Ba6 12.Ne5=
                  C212) 9.Nbd2 Nbd7 10.c4 Qc6 11.cd5 Qd5 12.Bc4=
               C22) 8...Bd7 9.Nbd2 (9.c4 0–0 10.Nbd2 Rc8 11.Bd3 dc4 
                12.Nc4+=) 9...Nc6 10.Bd3 0–0 11.0–0 Rac8 12.c4= 
               C23) 8...Nbd7 9.Nbd2 (9.Bd3 0–0 10.0–0 Qc7 11.Nbd2 Nb6 
                12.Ne5=) 9...0–0 10.c4 Qc7 11.cd5 Nd5 12.Bd3= 
               C24) 8...Qc7 9.Nbd2 (9.Bd3 0–0 10.Nbd2 a6 11.e4 de4 12.Ne4= 
               ) 9...0–0 10.c4 Nc6 11.Bd3 Bd7 12.0–0=
               C25) 8...Qc6 9.c4 (9.Ne5 Qc7 10.c4 Nc6 11.Bd3 0–0 12.Nc3= 
               ) 9...0–0 10.Qb3 b6 11.Ne5 Qb7 12.cd5= 
               C26) 8...Nc6 9.c4 (9.Bd3 Qa5 10.Qd2 Qc7 11.c4 0–0 12.Qe2= 
               ) 9...0–0 10.Nbd2 Qa5 11.Qb3 Ne4 12.Bd3=
         A) 7...0–0 
            A1) 8.Nf3 
               A11) 8...Nc6 9.e3 d5 10.Bd3 dc4 11.Bc4 Bd7 12.0–0=
               A12) 8...Qa5 9.Bc3 (9.Nc3 Nc6 10.e3 d5 11.Qb3 Qc7 12.cd5= 
               ) 9...Qc7 10.e3 b6 11.Bd3 Ba6 12.Bb4=
               A13) 8...Rd8 9.e3 (9.Nc3 d5 10.e3 Nc6 11.c5 Qc7 12.Bd3= 
               ) 9...d5 10.Nbd2 Qa5 11.cd5 Qd5 12.Bc4=
               A14) 8...d5 9.e3 Nc6 10.Bd3 dc4 11.Bc4 Bd7 12.0–0=
            A2) 8.Nd2 
               A21) 8...Nc6 9.e3 (9.Ngf3 d5 10.e3 Qa5 11.Qb3 Ne4 12.Bd3= 
               ) 9...Qa5 10.Ngf3 d5 11.Qb3 Ne4 12.Bd3=
               A22) 8...d5 9.e3 (9.Ngf3 Qa5 10.e3 Nc6 11.Qb3 Ne4 12.Bd3= 
               ) 9...Nc6 10.Ngf3 Qa5 11.Qb3 Ne4 12.Bd3=
               A23) 8...Qa5 9.Ngf3 (9.e3 d5 10.Ngf3 dc4 11.Bc4 b5 12.Bd3= 
               ) 9...d5 10.e3 dc4 11.Bc4 b5 12.Bd3=
            A3) 8.e3 d5 
               A31) 9.Nf3 Nc6 10.Bd3 (10.Be2 dc4 11.Bc4 Bd7 12.0–0= 
               ) 10...dc4= 11.Bc4 Bd7 12.0–0= 
               A32) 9.Nc3 Nc6 10.Nf3 Qc7 11.Nd2 a6 12.Qf3=;
               A33) 9.Nd2 Qa5 10.Ngf3 Nc6 11.Qb3 Ne4 12.Bd3=;
            A4) 8.Nc3 d5 9.e3 Qc7 10.Nf3 dc4 11.Qa4 Nc6 12.Qc4= 
         B) 7...d5 
            B1) 8.e3 
               B11) 8...Nc6 9.Nf3 (9.Bd3 dc4 10.Bc4 Bd7 11.Nf3 Rc8 12.0–0= 
               ; 9.Be2 dc4 10.Bc4 Bd7 11.Nf3 Rc8 12.0–0= 
               ; 9.Nc3 0–0 10.Nf3 Qc7 11.Nd2 a6 12.Qf3=
                ) 9...0–0 10.Bd3 (10.Nc3 Qc7 11.cd5 ed5 12.Bd3=/
                10) 10...dc4= 11.Bc4 Bd7 12.0–0=;
               B12) 8...0–0 9.Nf3 Nc6 10.Nc3 Qc7 11.cd5 ed5 12.Bd3=/
            B2) 8.Nd2 
               B21) 8...Nc6 9.e3 (9.Ngf3 0–0 10.e3 Qa5 11.Qb3 Ne4 12.Bd3= 
               ) 9...0–0 10.Ngf3 Qa5 11.Qb3 Ne4 12.Bd3=
               B22) 8...Qa5 9.e3 (9.cd5 ed5 10.e3 Nc6 11.Ngf3 Ne4 12.Be2= 
               ) 9...0–0 10.Ngf3 Nc6 11.Qb3 Ne4 12.Bd3=/
               B23) 8...0–0 9.e3 (9.Ngf3 Qa5 10.e3 Nc6 11.Qb3 Ne4 12.Bd3= 
               ) 9...Qa5 10.Ngf3 Nc6 11.Qb3 Ne4 12.Bd3=
         C) 7...Qc7 8.e3 
            C1) 8...Nc6 9.Nf3 (9.Bd3 d5 10.Nd2 0–0 11.Ngf3 dc4 12.Nc4= 
            ; 9.Nd2 d5 10.Ngf3 0–0 11.cd5 ed5 12.Bd3=
             ; 9.Be2 d5 10.Nf3 0–0 11.Nbd2 dc4 12.Bc4=; 
             9.Qc2 0–0 10.Nf3 d5 11.Bd3 dc4 12.Qc4=) 9...d5 
             10.Nbd2 Qa5 11.Qb3 Ne4 12.Qb5=;
            C2) 8...0–0 9.Nd2 (9.Nf3 d5 10.Nbd2 Nc6 11.Bd3 a6 12.cd5= 
            ) 9...d5 10.Ngf3 a6 11.cd5 ed5 12.Bd3=;
            C3) 8...b6 9.Nc3 (9.Nf3 Ba6 10.Nbd2 0–0 11.Ra1 Nc6 12.Bd3= 
            ; 9.Bd3 Ba6 10.Nd2 d5 11.Qa4 Qd7 12.Qb3= 
            ; 9.Nd2 0–0 10.Bd3 Ba6 11.Ra1 Nc6 12.Ngf3=) 9...Bb7 
             10.Nf3 d5 11.cd5 Nd5 12.Bb5=;
            C4) 8...d5 9.Nd2 (9.Nf3 dc4 10.Qa4 Bd7 11.Qc4 Bc6 12.Bd3= 
            ) 9...0–0 10.Ngf3 Rd8 11.cd5 ed5 12.Bd3= 
         D) 7...Nc6 8.e3 d5 9.Nf3 (9.Nc3 0–0 10.Nf3 Qc7 11.cd5 ed5 12.Bd3= 
         ; 9.Bd3 0–0 10.Nf3 dc4 11.Bc4 Bd7 12.0–0= 
         ; 9.Be2 0–0 10.Nf3 dc4 11.Bc4 Bd7 12.0–0=) 9...0–0 
          10.Bd3 dc4 11.Bc4 Bd7 12.0–0=) 
       (7...0–0 8.e3 Qa5 9.Bc3 Qc7 10.Bb4 d6=; 
       7...Nc6 8.e3 d5 9.Bd3 0–0 10.Nbd2 Qa5=) 
    8.e3 Nc6 
       (8...0–0 9.Bd3 Qc7 10.Nbd2 Bd7=) 
    9.Bd3 Bd7 
       (9...Qa5 10.Qd2 Qc7=) 
       (10.0–0 Rc8=) 
    10...0–0 11.0–0 Na5 12.Qe2 Rac8 13.Rc1 Ba4 14.Ne5 Nd7 15.Nd7 Bd7 16.e4 
    Bg5 17.Ba1 Qc7 18.Rb1 f6 19.Nf3 Bh6 20.Bb2 Nc4 21.Bc1 Bc1 22.Rc1 Qf4 
    23.Re1 b5 24.h3 de4 25.Qe4 Qe4 26.Re4 Rfd8 27.Re1 a5 28.Kh2 Kf7 29.Kg3 h6 
    30.h4 g6 31.Rb1 Nd6 32.Kf4 Nf5 33.Rab2 
       (33.Bf5!? ef5 34.Kg3+=) 
    33...g5–/+ 34.hg5 hg5 35.Kg4 a4 
       (35...Bc6 36.d5 Rd5 37.Bb5 Bb5 38.Rb5 Rb5 39.Rb5–+) 
       (better is 36.Rh1!?+=) 
    36...Bb5–/+ 37.Rb5 Rc2 38.R1b2 Rc3 39.Rf5 ef5 40.Kf5 Rd5 
       (40...Ra3?! 41.Rb7 Kf8 42.Kf6+=) 
    41.Ke4 Rd7 42.Rb6 Ra3 43.Kf5 Rd5 44.Ke4 Ra5 45.Rb7 Ke8 46.g4 Ra1 47.Rb8 
    Kd7 48.Rb7 Kc8 49.Rf7 a3 50.Rf6 a2 51.Rc6 Kd7 52.Rc2 Re1!! 53.Ne1 a1Q 
    54.Nd3 Qd1 
       (54...Qd1 55.Rc5 Qg4 56.f4 Qe2 57.Kf5 Qd3 58.Kg5 Ra1–+) 
    (80) Frenzel,Lothar – Zimmer,Georg
    corr SOK–92–86, 1992
    1.b4 Nf6 2.Bb2 e6 3.b5 d5 4.e3 Bd6 5.Nf3 0–0 6.Be2 a6 7.a4 ab5 8.ab5 Ra1 
    9.Ba1 c5 10.bc6 bc6 11.0–0 Ba6 12.Nc3 Be2 13.Ne2 
       (13.Qe2 Qc7+=) 
    13...Nbd7+= 14.d4 Qc7 15.h3 Re8 
       (15...Nb6 16.Qd3–/+) 
       (16.c4 Rb8+=) 
    17.de5= Ne5 18.Ne5 Be5 19.c4 Ba1 20.Ra1 Rd8 21.Nd4 c5 22.Nb5 dc4 23.Qc4 
       (23.Nc7? cd3 (23...Rd3?? 24.Ra8 Rd8 25.Rd8 Ne8 26.Re8) 24.Nb5 c4–+ 
    23...Qe5 24.Rc1 The isolani on c5 becomes a target 24...Rc8 25.Rd1 
       (25...Qe6 26.Na3=) 
    26.Nd6+= Do you see the mate threat? 26...Rc7 27.Qb5 Rd7 28.Qc6 c4 
       (better is 28...Rd8!? 29.Qb6 Rd7=) 
    29.Rd4+/– c3? 
       (better is 29...Qe6 30.Qa8 Ne8+/–) 
    30.Qa8+– Ke7 31.Nc8 Ke6 
       (31...Kf8 32.Nb6 Qe8 33.Nd7 Nd7 34.Qa3 Qe7 35.Qc3 Nf6+–) 
    32.Qc6 Kf5 33.Rd7 Nd7 
    34.g4 Kg5 35.f4 
       (35.f4 Kh4 36.fe5 Ne5 37.Qc7 Kh3 38.Qe5+–) 

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