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Ahmed Ibrahim Hamed vs Jonathan Speelman
Subotica Interzonal (1987), Subotica YUG, rd 1, Jun-22
Sicilian Defense: Richter-Rauzer. Modern Variation (B60)  ·  0-1

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
Notes by Stockfish 9 v010218 (minimum 6s/ply)7...Rc8 was played in D Frolyanov vs R Ovetchkin, 2001 (0-1)better is 9.Be2 h6 10.Bh4 b5 11.a3 Be7 12.O-O O-O 13.Bf2 e5 14.f5 ⩲ +0.57 (24 ply)= +0.06 (23 ply) after 9...b5 10.a3 h6 11.Bh4 b4 12.axb4 Nxb4 13.Qd2 Be7 14.Be2 17.a3 Rb8 18.h3 Kf8 19.Qe1 b4 20.axb4 Nxb4 21.Qf2 Qxf2 = +0.47 (20 ply)= -0.46 (21 ply) after 17...Nc4 18.Qe1 N6e5 19.Nd1 a5 20.Bxc4 Nxc4 21.Nd2 Bc6 better is 19.Bg3 Nc4 20.Qe1 N6e5 21.h4 g4 22.Qf2 Qb6 23.Nd1 Bc6 = -0.20 (21 ply) ⩱ -0.86 (21 ply) after 19...Nc4 20.Bxc4 bxc4 21.b3 Ne5 22.Ka1 Qb4 23.Rd1 Ng6 24...Rh4 25.Bxa6 Qb6 26.g3 f6 27.Qb5+ Qxb5 28.Bxb5+ Rxb5 ⩱ -0.92 (24 ply)= +0.32 (23 ply)better is 27.Qg3 f5 28.Re1 f4 29.Qg4 Qf5 30.Qxf5 Rxf5 31.Rxe6 Kf7 ⩲ +0.54 (21 ply)= 0.00 (24 ply)better is 28.Qe3 f5 29.Re1 Rd6 30.g4 Rf7 31.h4 f4 32.Qe4 Qd5 = +0.13 (21 ply) ⩱ -0.55 (22 ply) 33...Rd4 34.Ng4 Qe4 35.Rg3 Qxg2 36.Rxg2 Bd6 37.Re1 Kf7 = -0.32 (24 ply) ± +2.20 (25 ply) 35.Qe2 Kg7 36.Rf3 Rd2 37.Qxe6 Qxf3 38.Qxe7+ Qf7 39.Qxg5+ ⩲ +1.37 (25 ply)= -0.16 (28 ply) 37.Qh1 Qe2 38.Nd3 Qxh2 39.Rh3 Qxh1 40.Rcxh1 Re2 41.Nxb4 = -0.08 (25 ply) ⩱ -0.96 (29 ply) 38.Rxf6 Qxf6 39.Ne4 Qf5 40.Qxf5 exf5 41.Nxd2 Rxd2 42.h3 ⩱ -0.89 (26 ply) ∓ -1.76 (26 ply) 41.Ne4 Rg2 42.Rcf1 Qc7 43.R6f2 Rxf2 44.Rxf2 Qa7 45.Rf1 ∓ -1.70 (27 ply) 41...Qa8 42.Rg3 Rxf2 43.Rxg5+ Kf6 44.h4 Qe4 45.b3 Qxh4 -+ -5.22 (25 ply) 42.Rb3 Qd5 43.Rd3 Rxd3 44.Nxd3 e5 45.Re1 e4 46.Nc1 Kf6 ∓ -1.67 (29 ply)-+ -7.40 (23 ply); 43.Rg3 Kf6 44.Rh3 Qf5 45.Rh8 Kg7 46.Ra8 g4 47.Rxa6 Rxh2 -+ -7.37 (23 ply)0-1

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
Feb-25-15  zanzibar: There are several versions of this game floating around. <ChessTempo> has all three of them, each offering Black a different 41th move: 41...Qb7, 41...Qb5, and 41...Qa8.

Which one is best?


click for larger view

Not the one Speelman played here, i.e. 41...Qb7, which could be answered by 42.Rb3 Qg2 43.Nd3 Qxh2

Black has a better tactic in hand and it involves a little screening help by a lowly pawn.

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