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Erich Cohn vs Georg Rotlewi
Karlsbad (1911), Karlsbad (Karlovy Vary) AUH, rd 2, Aug-22
Spanish Game: Closed Variations (C84)  ·  1-0

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
Notes by Stockfish 11 (minimum 6s/ply)better is 3.Bc4 Bc5 4.c3 Nf6 5.d3 Bb6 6.Bg5 d6 7.O-O h6 8.Bh4 ⩲ +0.57 (43 ply)= 0.00 (41 ply) after 3...Nf6 4.d3 Bc5 5.Bxc6 dxc6 6.O-O Bd6 7.c3 Be6 better is 4...Be7 5.O-O Nf6 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 = +0.03 (37 ply) ⩲ +0.73 (37 ply)better is 8...O-O 9.h3 Na5 10.Bc2 c5 11.d4 Nd7 12.Nbd2 exd4 = 0.00 (37 ply) ⩲ +0.62 (33 ply)better is 10.h3 O-O 11.d4 Qc7 12.Nbd2 cxd4 13.cxd4 Nc6 14.Nb3 a5 ⩲ +0.53 (31 ply)= -0.08 (33 ply)better is 11.h3 Nc6 12.Nbd2 Qc7 13.Nf1 Be6 14.a4 d5 15.Ng5 b4 ⩲ +0.57 (32 ply)= -0.01 (31 ply) after 11...h6 12.Nf1 Nc6 13.a4 Be6 14.Ne3 Qc7 15.Bb3 b4 16.h3 12...Be6 13.Ne3 h6 14.h3 Re8 15.a4 Bf8 16.axb5 axb5 = -0.23 (42 ply) ⩲ +0.82 (32 ply) 14...cxd4 15.cxd4 Bf6 16.dxe5 dxe5 17.Nd5 Be6 18.Nxf4 = +0.26 (34 ply)better is 15.dxc5 dxc5 16.Nd5 Bg4 17.Nxf4 Qxd1 18.Bxd1 exf4 ⩲ +1.50 (34 ply) ⩲ +0.80 (25 ply) 17.cxd4 Bg4 18.e5 Be7 19.Be4 Bg5 20.Rc1 Rc8 21.exd6 Qxd6 ± +1.61 (33 ply)= +0.29 (33 ply) 19.Rc1 Bh3 20.g3 fxg3 21.hxg3 Rac8 22.Qd3 Be6 23.a3 Na5 ⩲ +0.91 (33 ply)= +0.10 (33 ply)better is 20.Nc3 Rad8 21.Bb3 Ne7 22.Qd2 h5 23.Bxe6 fxe6 24.Rac1 e5 ⩲ +0.69 (31 ply)= 0.00 (36 ply) after 20...Rac8 21.Rec1 a5 22.Kh1 Qh4 23.Nc3 Qf2 24.e5 g6 21...Bc4 22.Qd2 Qf6 23.Rad1 Rac8 24.Bb3 Nb4 25.Bxc4 bxc4 = 0.00 (34 ply) 22.Qd2 Qf6 23.Red1 Bc4 24.b3 Qxd4+ 25.Qxd4 Nxd4 26.Rxd4 ⩲ +0.77 (34 ply)better is 22...Qf6 23.Rad1 Na5 24.Qe2 Nc4 25.Bb1 Kh8 26.Qf2 g5 ⩱ -0.73 (32 ply)= 0.00 (43 ply) 25...Kg7 26.Kh1 Qf6 27.Rad1 Bb3 28.Rc1 h6 29.Rg1 Be6 = -0.22 (31 ply) ⩲ +0.88 (34 ply) 27.Rad1 Qd8 28.Nd5 Rc2 29.Rd2 Rxd2 30.Qxd2 Qg5 31.b4 Nc4 ⩲ +0.87 (34 ply)= 0.00 (46 ply) after 27...Rc2 28.Re2 Rxe2 29.Qxe2 Nb3 30.Rd1 Rc4 31.h4 Qg3 30.Rxc1 Rxc1+ 31.Re1 Rc4 32.e5 dxe5 33.dxe5 Nd4 34.Nf6+ = 0.00 (39 ply) 30...R8c2 31.Rxc1 Rxf2 32.Kxf2 Qh4+ 33.Kg1 Nxc1 34.Rxc1 ∓ -2.07 (39 ply)= 0.00 (41 ply) after 31.h4 Rxf2 32.hxg5 Rcc2 33.Nxf4 f6 34.Rd3 Na5 35.Rc3 33.h4 Qg3 34.Nb6 Rxd4 35.Rxd4 Nxd4 36.Qd1 Ne6 37.h5 gxh5 = 0.00 (48 ply) ⩱ -0.91 (42 ply) 34...Qg3 35.Qxg3 fxg3 36.Ne3 Ra4 37.Kf1 Ne6 38.Rxd6 b4 ⩱ -0.88 (43 ply)+- +4.24 (34 ply) 41.Rxd6 h6 42.Rd4 Qc7 43.Qd2 a5 44.Rd8+ Kh7 45.Rd7 Qc4 +- +5.65 (31 ply) ± +1.51 (34 ply) after 41...f5 42.exf5 Nxf5 43.Qe2 Qb3 44.Ke1 h5 45.Rd2 Kf7 42...Nf5 43.Qe2 Qxd5+ 44.Qd3 Qa2 45.Kc3 Ne3 46.Rd2 h6 ± +1.91 (34 ply)+- +5.04 (35 ply)53...Qc4+ 54.Kf2 Qc5+ 55.Qd4 Qf8 56.d8=Q Qxd8 57.Qxd8+ +- mate-in-121-0

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

Annotations by Stockfish (Computer).      [35437 more games annotated by Stockfish]

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Kibitzer's Corner
Sep-10-21
Premium Chessgames Member
  Mateo: 34...Qe5?? was the turning point. Black had to play 34...Qg3 with some advantage. After 34...Qe5?? 35.Nb6 White is suddenly winning since 35...Rc6 fails to 35...Rxd4 Rxb6 36.Rd5.

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