GM Igor Efimov (2416) - IM Mok Tze Meng (2354)
Istanbul Olympiad, Round 2, 29.8.12
Analyzed by Centaur (Hairulov + Rybka 4)
1.d4 g6 hoping for 2.e4 and the tranpose into "Mokdern Defense" - his favorite opening! 2.g3 no chance :) 2...Bg7 3.Bg2 c5 4.c3 cxd4 5.cxd4 Qb6 6.e3 Nf6 7.Nc3 0-0 8.Nge2 d6 9.0-0 Nc6
Both players have complete their development. There are no clear weakness in both camp so it's hard to suggest a plan here. However i bet both player will try to conquer the open c-file with their rooks sooner or later.
10.b3 White can choose a more aggressive plan with 10.d5 Ne5 11.Nd4 followed by f4 later 10...Bd7 11.Bb2 Rfc8 Rac8? or Rfc8? is always tricky option. If black continue to double on c-file it will not make a different but if the rooks stay on c and a file, he will have less support in the center and should play on the queenside. 12.Qd2 a5 13.h3 White is playing wait and see. 13...Nb4 provoking 14.a3 and after 14...Nc6white's b3 pawn appear weak. 14.Rfc1 Bc6 15.e4 e5 16.d5 Be8 17.Bf1 h5 18.Kg2 Kh7 19.Ng1!?
19... Bh6 20.Qe2 h4 21.g4 Bxc1 22.Rxc1 Kg7 23.Nf3 Qd8 24.Qe3 Nh7 25.Bc4 b5 26.Be2 Rab8 27.a3 Na6 28.a4 b4??
A serious mistake. I think Mok must have miscalculate the combination because he lost material after....
29.Bxa6 bxc3 30.Bxc3 Rxc3 30...Rc5 will be answered with 31.Bxe5+! 31.Rxc3 White is a pawn up and has dominate the c-file 31...g5 32.Qc1Qb6? Black let white's bishop to penetrate to black's kingside. Better is 33...Bd7 33.Bc8! f6 34.Rc7+ Kh8 35.Bf5 Nf8 36.Nxg5 Ng6 37.Ne6 Nf4+ 38.Nxf4 exf4 39.Rh7+ 39.Qxc3! will lead to mate in 11 (maximum) - try it with your chess engine! 39...Kg8 40.Qxf4 1-0
Malaysia won 2.5 -1.5
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