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Akiba Rubinstein vs Edgard Colle
Liege (1930), Liege BEL, rd 1, Aug-19
Nimzo-Indian Defense: Normal Line (E40)  ·  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 9 v010218 (minimum 6s/ply)6.f4 was played in Alekhine / Bernstein vs Johner / Michel / Naegeli, 1930 (1-0)6...c5 was played in Y Shulman vs M Brooks, 2002 (0-1)7.Ne2 was played in Bogoljubov vs H Johner, 1931 (1-0)better is 10...h6 11.Be3 Nc6 12.Qd2 Na5 13.Ng3 Bd7 14.Rab1 Qe7 = +0.26 (21 ply)better is 11.Bg5 h6 12.Bh4 g5 13.Bf2 Bd7 14.Ng3 Ne7 15.Bc2 Ng6 ⩲ +0.85 (21 ply)= +0.30 (20 ply) after 11...h6 12.Qd2 Ne7 13.Ng3 c5 14.Rab1 Bd7 15.d5 Rc8 better is 14.Rac1 h6 15.d5 Bc8 16.Rf2 Rb8 17.Rcf1 Rb7 18.Rb1 Nd7 ⩲ +0.65 (20 ply) 14...Nd7 15.Nf5 Nf8 16.Rab1 Bc8 17.g3 Ng6 18.Bd2 Qf6 = +0.12 (23 ply) ⩲ +1.29 (21 ply)better is 18...Rf7 19.h4 g5 20.hxg5 fxg5 21.Kg2 h6 22.Rh1 Rh7 ⩲ +1.47 (21 ply) 19.h4 Rf7 20.Rf2 Rf8 21.Rb1 Rc8 22.Rg2 Rg8 23.Ng3 Rc7 ± +2.20 (21 ply)= +0.33 (25 ply) 21.Bc1 b5 22.Kh1 Rb8 23.gxf6 Nxf6 24.Nxf6 gxf6 25.Bh6 ⩲ +0.55 (22 ply) 21...Nxe3 22.fxg7+ Kg8 23.Rf2 Qf7 24.c4 Nxd5 25.cxd5 Nf6 ⩱ -1.15 (27 ply)+- +2.60 (28 ply) 27...c4 28.Qxc4 Qh5 29.Qf1 Rg8 30.Rxg8+ Kxg8 31.Qg2+ Kf8 ± +2.41 (28 ply)+- +4.20 (29 ply) after 28.Rg4 Rg8 29.Rxg8+ Qxg8 30.Qa6 Qb8 31.c4 b5 32.Qc6 Qe8 better is 29.Rxg8+ Kxg8 30.Rg1+ Kf8 31.Qh3 h5 32.Rg6 Qh7 33.Qd3 a5 +- +3.82 (27 ply)+- +2.63 (34 ply) 34...Qe7 35.h5 Qf8 36.Kf2 h6 37.Rg6 Kh7 38.Ke3 Qe7 39.Kd2 +- +3.49 (34 ply)+- +6.02 (27 ply) after 35.c4 h6 36.Qg4 a5 37.Rb3 Na6 38.Rxb6 Nb4 39.Qg3 Qd8 36...c4 37.Qe2 Nd7 38.Qxc4 Nc5 39.Rg6 Kh7 40.Kf3 Qe8 +- +3.82 (31 ply)+- +7.28 (29 ply)better is 38.Qe2 b4 39.cxb4 cxb4 40.Qb5 Qc8 41.Qb6 Nd7 42.Qc6 Qe8 +- +7.72 (27 ply)+- +2.84 (29 ply)better is 40.Rg2 Nc8 41.Ra2 Ne7 42.Qg1 b4 43.cxb4 cxb4 44.Ra7 b3 +- +4.76 (26 ply) 40...Nc8 41.Qg3 Ne7 42.Qh4 Ng8 43.Ke3 Kh7 44.Qg4 Ne7 +- +3.02 (33 ply)+- +15.55 (27 ply); 41...Nb6 42.cxb5 c4 43.Ra1 Qg7 44.Ra6 Qc7 45.Qxf6+ Kh7 +- mate-in-161-0

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

Annotations by Stockfish (Computer).      [35434 more games annotated by Stockfish]

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Kibitzer's Corner
Oct-23-08  Murphyman: This looks to me like Colle resigned because his Knight will come under fire and cannot prevent both of the following;

A) White rook getting to a7 to set up a mate threat on h7

B) Knight being driven back onto the 8th rank where it will be pinned to the queen.

Any other thoughts?

Nov-09-09  Twocolors: I would say Colle missed a winning position after 21.gxf6? He could have played 21.. Nxe3! Now neither 22.fxe7 Nxf1 nor 22.fxg7+ Kg8 23.Rf2 Qf7 24.Ng3 Nf6 25.Qxe3 Ng4 26.Qf3 Nxf2 nor indeed 22.Qxe3 Nxf6 is satisfactory for white. In the final position 41..bxc4 fails to 42.Rb1! and black has no defence against Rb7. Also 41..b4 doesn't work: 42.Ra1 b3 43.Rxa4 b2 44.Ra7 b1Q 45.Qh7 mate Black's Queen is tied to the defence of f6 and h6 If, however 41..Nb6 then simply 42.cxb5 and black slowly runs out of moves, e.g. 42..Nc8 43.Ke3!(keeps the pressure on) 43..c4 (or Nb6 Ra1! or Ne7 Qg7!) 44.Kd2 with an easy win
Sep-06-12  whiteshark: < Twocolors: I would say Colle missed a winning position after 21.gxf6? He could have played 21.. Nxe3!>

Yes, indeed. <21.Bc1=> is a suggestion from the Technical Dept.


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