E30: Nimzo-Indian: Leningrad Variation
1.d4
Nf6 2.c4 e6
3.Nc3 Bb4 4.Bg5
c5 5.d5 exd5
6.cxd5 d6 7.e3
Qe7
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[7...Bf5 8.Qf3
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(8.Bb5+ Nbd7 9.Nge2
a6 10.Ng3 Bg6
11.Bxd7+ Qxd7
12.Bxf6 gxf6 13.O-O Bxc3
14.bxc3 b5 15.Re1
h5 16.e4 h4
17.Nf1 h3 18.g3
Kf8 19.f4 Bh5
20.Qc2 Re8 21.Re3
c4 22.Qf2 f5 Duarte,F-Brito,L/Rio
de Janeiro 1974/EXT 2003/1-0 (59)) |
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8...Bg6
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(8...Bg4 9.Bxf6
Bxf3 10.Bxd8 1-0
Lachmann,H-Galle,W/Lippstadt 1962/EXT 2001) |
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9.Bb5+ Nbd7
10.h4 h6 11.Bxf6
Qxf6 12.Qxf6 gxf6
13.Nge2 a6 14.Bxd7+
Kxd7 15.O-O-O Bh5
16.f3 f5 17.Nf4
Bg6 18.Rhe1 Rae8
19.Re2 Re7 20.Rh1
h5 21.Rh3 Ree8
22.Rg3 Portisch,L-Donia,M/Antwerp 1955/EXT
2000/1-0 (54)] |
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[7...O-O 8.Bd3
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(8.Bc4 Bxc3+ 9.bxc3
Bf5 10.Ne2 h6
11.Bh4 Nbd7 12.O-O Bh7
13.Bd3 Qe8
14.Bxh7+ Kxh7
15.Qb1+ Qe4
16.Qxe4+ Nxe4
17.Rfd1 g5
18.Bg3 Nxg3
19.Nxg3 f5
20.f4 Kg6
21.Rab1 b6
22.a4 Rfe8 Kudinow,D
(1932)-Van Brussel,B (1687)/Soest 2001/EXT 2002/1/2-1/2 (45)) |
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8...Bxc3+ 9.bxc3
Nbd7 10.Ne2
Re8 11.O-O h6
12.Bh4 Ne5
13.h3 Qe7
14.c4 b6 15.Nc3
Ng6 16.Bg3
Ne5 17.a4
Ba6 18.Nb5
Bxb5 19.axb5
Qb7 20.Qc2
a5 21.bxa6
Rxa6 22.Rxa6 Kaplan,J
(2435)-Damjanovic,M (2430)/Hastings 1976/EXT 99/1/2-1/2] |
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[7...O-O 8.Bd3] |
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8.Bb5+ Nbd7
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[8...Bd7 9.Bd3] |
9.Nge2 a6
10.Ba4 b5
11.Bc2 h6 Black
threatens to win material: h6xg5
12.Bh4 g5
13.Bg3 Nh5
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[13...Bb7 14.a3
Bxc3+ 15.Nxc3] |
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14.O-O
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[14.a4 O-O 15.h4
Bxc3+ 16.bxc3
Ndf6 17.hxg5
hxg5] |
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14...Ba5
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[14...Bxc3 15.Nxc3
Nxg3 16.fxg3] |
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15.a4 b4
16.Ne4 Nxg3
17.N2xg3
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[Worse is 17.hxg3 h5] |
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17...Nf6
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[17...Ne5 18.Nd2] |
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18.f4
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[18.Nd2 Bc7] |
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18...Nxe4
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[18...g4!?] |
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19.Bxe4
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[Inferior is
19.Nxe4 b3
20.Bd3 c4] |
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19...Bd7
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[19...Rg8 20.Kh1] |
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20.Qd3 Kd8
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[20...Bb6 21.Kh1] |
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21.b3
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[21.Bf5 Be8] |
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21...Kc7
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[21...Bb6 22.Rac1] |
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22.Bf5 Kb7
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[22...Bxf5 23.Nxf5
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(23.Qxf5?! Qxe3+
24.Kh1 Rad8) |
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23...Qd7 24.Ng3] |
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23.Bxd7 Qxd7
24.Ne4
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[24.fxg5!? Bc7
25.g6 fxg6
26.Rf6] |
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24...Bc7
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[24...Qe7 25.Rae1] |
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25.Rac1
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[25.Rae1] |
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25...Ka7
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[25...Qe7!? 26.Ng3
Rae8] |
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26.fxg5 hxg5
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[26...Bd8 27.Rxc5
dxc5 28.Nxc5] |
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27.Nxg5
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[27.Rf6!? Kb8
28.Rcf1] |
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27...Raf8 28.Rf5
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[28.Rc4 Bd8
29.Qf5 Qxf5
30.Rxf5 Bxg5
31.Rxg5 Re8] |
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28...Bd8 29.Rcf1
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[29.Nh3 Rfg8
30.Rcf1 Rg7] |
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29...Bxg5 30.Rxg5
f6
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[30...Qe7 31.Rff5] |
31.Rgf5 White threatens to win material:
Rf5xf6
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[31.Qf5 Qe7
32.Rg3 Rh6] |
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31...Qh7 32.h3
Qg6?
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[32...Rfg8 33.R1f3
Rg6 34.Qf1] |
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33.e4
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[33.Qe4 Re8
34.Qf4 Reg8] |
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33...Rfg8?
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[33...Qg7] |
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34.Qf3 Qg3
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[34...Qh6 35.Kh2
Rd8] |
35.Rxf6?? makes life more difficult.
.
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[35.Qxg3 ends the debate
35...Rxg3
36.Rxf6] |
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35...Rxh3 36.Rf7+
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[36.Qxg3 Rhxg3
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(36...Rgxg3?? 37.Kf2) |
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37.R1f5 Rxg2+
38.Kf1 Rb2] |
36...Kb6 37.a5+?? with
this move White loses his initiative
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[37.Qxg3 is a viable option
37...Rhxg3
38.R1f6 Rxg2+
39.Kf1] |
37...Kxa5 38.Rb7?? terrible,
but what else could White do to save the game?
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[38.Qxg3 Rhxg3
39.R1f3] |
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38...Qh2+
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[38...Qh2+ 39.Kf2
Rxf3+ 40.Kxf3
Qxg2+ 41.Ke3
Qxf1 42.Rb5+
Kxb5 43.e5
Rg3+ 44.Kd2
Qf2+ 45.Kc1
Rg1#] |
0-1 |