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After 1 d4 Nf6 2 c4 e6 3 Nf3 d5 4 Nc3 Be7 5 Bg5 h6 6 Bxf6 Bxf6 7 e3 O-O 8 Rc1 c6 I was White in this position against Vatnikov (2300) in the
Bradley Open, and I was trying to remember your comment - I rejected your move 9 cxd5 because Black can play 9 ... cxd5! and after he develops his knight on c6, he quite simply has total equality! His queen bishop
is bad, but then again he has the two bishops, and what is White going to do for an advantage? So I played 9 Bd3 - of course this allows 9 ... dxc4(!) 10 Bxc4 Nd7 leading, not to the QGA, but to a much-discussed line
after 11 O-O e5 12 h3 exd4 13 exd4 Nb6. Vatnikov played 9 ... Nd7, and now I played 10 cxd5!, getting a good minority attack after 10 ... exd5 11 b4 a6 12 O-O Qe7 13 Qb3 g6?! and now 14 e4! with a great position.
Therefore, after 9 Bd3 Nd7 10 cxd5, Black should probably play 10 ... cxd5, although his passively placed knight on d7 probably allows White to get some advantage. CHIGORIN DEFENCE 1. d4 Nc6 2. Nf3 d5 3. g3
Bg4 4. Bg2 Qd7 5. h3 Bf5 6. c4 From Kaidanov - Khmelnitsky, rd. 12. I am impressed by Kaidanov's timing of this move - not so early as to give Black the usual Chigorin counterplay, but early enough to threaten
central domination, given that Black's c-pawn is blocked. Could this move order be a reason that ... Nb8-c6 is only good after White commits himself to the Queen's Gambit? dxc4 7. Nc3 e6 8. e4Bg6 9. O-O Bd6
Clearly a source of some later problems, this move blocks the d-file, giving White more of a free hand in organizing the attack. 10. Qe2 Na5 11. Be3 b5 12. a3 c6 13. Nh4 Be7 14. Nxg6 hxg6 15.d5 This was the
break Kaidanov had in mind when he decided to eliminate Black's light-squared bishop. White has a big edge. 1-0 in 31.
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