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Saturday, 30 June 2007
Thursday, 28 June 2007
R Byrne vs. Fischer Sousse Interzonal 1967 Sicilian Defense
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 b5
8.f4
i should point out that in this particular variation, partially as a consequence of this game, 8. 0-0 Be7 9. Qf3 has replaced 8. f4 as the main theoretical line these days, whites generally striving for an advantage with early piece play, only aiming for f4-f5 later on.
8. ... Bb7 9.f5 e5 10.Nde2 Nbd7
The pawn grab 10. … Nxe4 is a bit greedy, but certainly not out of the question 11.Nxe4 Bxe4 12.O-O Bb7 13.Nc3 Be7 14.Nd5 Bf6 15.Be3 Nd7 16.Qh5 gave white a promising position for the pawn deficit in Dely-Bednarski Zinowitz 1964.
10. … Bx4? Loses simply to 11. Nxe4 Nxe4 12. Qd5
11.Bg5 Be7 12.Ng3
Adding pressure down the c-file 12. … 0-0 looks natural enough but allows white to carry his plan 13.Bxf6 Nxf6 14. Nh5 Qb6 15. Nxf6+ Bxf6 16. Qd3 Bg5 (white cannot castle either side, but he is still better as he will have an unopposed knight on d5) 17. Bd5! Rfd8 18.h4 Bh6 19.g4 Bf4 20.Bxb7 Qxb7 21.g5 Rac8 22.Nd5 Rc4 23.c3 Rdc8 24.f6 Kh8 25.fxg7+ Kxg7 26.0-0 with a clear plus for white, Susnik vs. S. Nikolic Ljubljana 1996.
13. 0-0
Surprisingly enough this natural move is a serious mistake, although this is only shown up by the brilliance of Fischer’s next move. White has two stronger alternatives
a) 13. Nh5 Nxh5 14. Qxh5 0-0 15. Bxe7 ( 15. h4 b4 16. Nd5Bxd5 17. exd5 Nc5
18. 0-0-0 a5 19. qg4 a4 20. Bc4 b3 gave Black a strong attack, R Byrnes vs. Bouaziz. 1967)
15. … Qxe7 and Black has nothing to fear Black has won this positional battle Voss vs. Trisic concluded 19.c4 bxc4 20.Bxc4 Rfc8 21.Bb3 Nxd5 22.Qxa6 Qh4+ 23.Kd1 Qd4+ 24.Ke2 Qe3+ 0-1 and whites resigned.
b) 13. Bxf6 Nxf6 14. Nh5 is a more direct method of trying to win the battle for the d5 square, but Black is also well armed against this response : 14. … Rxc3! ( a typical exchange sacrifice and yet another point of … Rc8) 15. Nxf6+ Bxf6 16. bxc3 Bxe4 17. 0-
has good compensation for the exchange : a pawn, the bishop pair and weak white pawns to aim at
13. h5!!
Characteristically it’s Fischer who find the antidote to one of his own plans! Black use the very fact that he hasn’t castled to lunge forward with this pawn, a multi-dimensional move:
1) it prevents Nh5
2) it prepares …. H5-h4,attacking the knight which defend the crucial e4-pawn
3) it begins a surprisingly effective attack on the white kingside
it’s not too early to say that white is already in big trouble
14. h4
This move looks ugly what else is there? 14. Bf6 Nf6 brings white no relief after:
a) Qf3 Rxc3! 16. Qxc3 h4
And Black has a vicious attack for example 17. Nh1 Qb6+ 18. Nf2 Qc6 and white is killed down the long diagonal, or, 17.Ne2 Qb6+ 18.Kh1 Nxe4 19.Qh3 Ng5 20.Qg4 h3 21.Rg1 Ne4 22.Raf1 Nf2+ 23.Rxf2 Qxf2 24.Qxg7 hxg2+
25.Rxg2 Qxe2 26.Bxf7+ Kd8 27.Qxh8+ Kc7 and blacks mate , Bednarski vs. Lehmann 19967
a) 15. Nd5 h4 16. Nxf6+ gxf6! 17. Nh1 bxe4 18. Qg4 d5 and black is already winning Thorstein vs. Ghitescu concluded 19.Rad1 Bc5+ 20.Nf2 Ke7 21.Rfe1 Bxf2+ 22.Kxf2 Qb6+ 23.Kf1 Rhg8 24.Qxh4 Rxg2 and white threw the towel.
14. … b4
15 Bxf6
Or 15.Nd5 Nxd5 16.Bxd5 Bxg5 17.hxg5 Bxd5 18.Qxd5 Qxg5 and Black is in total control.
15. … Bxf6
15. … nxf6 is just as good 16. Nd5 Nsd5 17. Bxd5 Bxd5 18. Qxd5 Bxh4 is horrible for white.
16. Nd5 Bxh4
And so white has control over d5, but is kingside is fatally weakened this is not a good deal
17. Nxh5 Qg5
Black has now the luxury of an open h-file which to attack. I guess it could be said that white has won a battle ( of the d5 square) but has lost the war. Byrnes gamely puts up a fight but from here the result is never in doubt
18. f6 g6 19. Ng7+ Kd8
threatening ... Bxd5 followed by ... Qe3+
20. Rf3 Bg3
Now Black threatens … Qh4
21.Qd3 Bh2+ 22.Kf1 Nc5 23.Rh3
23. Qe2 Bg3 is terminal
23. … Rh4 24.Qf3 Nxb3 25.axb3 Rxh3 26.Qxh3 Bxd5
White has even lost control over d5!
27.exd5 Qxf6+ 28.Ke1 Qf4 0-1
8.f4
i should point out that in this particular variation, partially as a consequence of this game, 8. 0-0 Be7 9. Qf3 has replaced 8. f4 as the main theoretical line these days, whites generally striving for an advantage with early piece play, only aiming for f4-f5 later on.
8. ... Bb7 9.f5 e5 10.Nde2 Nbd7
The pawn grab 10. … Nxe4 is a bit greedy, but certainly not out of the question 11.Nxe4 Bxe4 12.O-O Bb7 13.Nc3 Be7 14.Nd5 Bf6 15.Be3 Nd7 16.Qh5 gave white a promising position for the pawn deficit in Dely-Bednarski Zinowitz 1964.
10. … Bx4? Loses simply to 11. Nxe4 Nxe4 12. Qd5
11.Bg5 Be7 12.Ng3
Adding pressure down the c-file 12. … 0-0 looks natural enough but allows white to carry his plan 13.Bxf6 Nxf6 14. Nh5 Qb6 15. Nxf6+ Bxf6 16. Qd3 Bg5 (white cannot castle either side, but he is still better as he will have an unopposed knight on d5) 17. Bd5! Rfd8 18.h4 Bh6 19.g4 Bf4 20.Bxb7 Qxb7 21.g5 Rac8 22.Nd5 Rc4 23.c3 Rdc8 24.f6 Kh8 25.fxg7+ Kxg7 26.0-0 with a clear plus for white, Susnik vs. S. Nikolic Ljubljana 1996.
13. 0-0
Surprisingly enough this natural move is a serious mistake, although this is only shown up by the brilliance of Fischer’s next move. White has two stronger alternatives
a) 13. Nh5 Nxh5 14. Qxh5 0-0 15. Bxe7 ( 15. h4 b4 16. Nd5Bxd5 17. exd5 Nc5
18. 0-0-0 a5 19. qg4 a4 20. Bc4 b3 gave Black a strong attack, R Byrnes vs. Bouaziz. 1967)
15. … Qxe7 and Black has nothing to fear Black has won this positional battle Voss vs. Trisic concluded 19.c4 bxc4 20.Bxc4 Rfc8 21.Bb3 Nxd5 22.Qxa6 Qh4+ 23.Kd1 Qd4+ 24.Ke2 Qe3+ 0-1 and whites resigned.
b) 13. Bxf6 Nxf6 14. Nh5 is a more direct method of trying to win the battle for the d5 square, but Black is also well armed against this response : 14. … Rxc3! ( a typical exchange sacrifice and yet another point of … Rc8) 15. Nxf6+ Bxf6 16. bxc3 Bxe4 17. 0-
has good compensation for the exchange : a pawn, the bishop pair and weak white pawns to aim at
13. h5!!
Characteristically it’s Fischer who find the antidote to one of his own plans! Black use the very fact that he hasn’t castled to lunge forward with this pawn, a multi-dimensional move:
1) it prevents Nh5
2) it prepares …. H5-h4,attacking the knight which defend the crucial e4-pawn
3) it begins a surprisingly effective attack on the white kingside
it’s not too early to say that white is already in big trouble
14. h4
This move looks ugly what else is there? 14. Bf6 Nf6 brings white no relief after:
a) Qf3 Rxc3! 16. Qxc3 h4
And Black has a vicious attack for example 17. Nh1 Qb6+ 18. Nf2 Qc6 and white is killed down the long diagonal, or, 17.Ne2 Qb6+ 18.Kh1 Nxe4 19.Qh3 Ng5 20.Qg4 h3 21.Rg1 Ne4 22.Raf1 Nf2+ 23.Rxf2 Qxf2 24.Qxg7 hxg2+
25.Rxg2 Qxe2 26.Bxf7+ Kd8 27.Qxh8+ Kc7 and blacks mate , Bednarski vs. Lehmann 19967
a) 15. Nd5 h4 16. Nxf6+ gxf6! 17. Nh1 bxe4 18. Qg4 d5 and black is already winning Thorstein vs. Ghitescu concluded 19.Rad1 Bc5+ 20.Nf2 Ke7 21.Rfe1 Bxf2+ 22.Kxf2 Qb6+ 23.Kf1 Rhg8 24.Qxh4 Rxg2 and white threw the towel.
14. … b4
15 Bxf6
Or 15.Nd5 Nxd5 16.Bxd5 Bxg5 17.hxg5 Bxd5 18.Qxd5 Qxg5 and Black is in total control.
15. … Bxf6
15. … nxf6 is just as good 16. Nd5 Nsd5 17. Bxd5 Bxd5 18. Qxd5 Bxh4 is horrible for white.
16. Nd5 Bxh4
And so white has control over d5, but is kingside is fatally weakened this is not a good deal
17. Nxh5 Qg5
Black has now the luxury of an open h-file which to attack. I guess it could be said that white has won a battle ( of the d5 square) but has lost the war. Byrnes gamely puts up a fight but from here the result is never in doubt
18. f6 g6 19. Ng7+ Kd8
threatening ... Bxd5 followed by ... Qe3+
20. Rf3 Bg3
Now Black threatens … Qh4
21.Qd3 Bh2+ 22.Kf1 Nc5 23.Rh3
23. Qe2 Bg3 is terminal
23. … Rh4 24.Qf3 Nxb3 25.axb3 Rxh3 26.Qxh3 Bxd5
White has even lost control over d5!
27.exd5 Qxf6+ 28.Ke1 Qf4 0-1
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