XXVII SuperGM Linares ESP (10), 24.02.2010 [Comentários do jovem sub GM Anish Giri]
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f3!? Qb6 7.Nb3 e6 8.Bf4 Qc7 9.Qd2 Nc6 10.0-0-0 Ne5 11.Bg3!? Vallejo introduces a new idea, getting a very atypical position for a Najdorf. 11...Be7 12.f4 Ned7 13.Be2 e5!? An interesting and strong idea, not letting White play e5 himself. 14.Nd5 Nxd5 15.exd5 Bf6 16.fxe5 Nxe5 17.Rhf1 Qe7 18.Kb1 0-0
19.Na5!? Bd7 20.Qb4!? Interesting moves by Vallejo, making it difficult for Grischuk to find a good plan. 20...Rab8?! 21.Rde1 b5?! I must say I really don't like these two moves by Black. Now Vallejo should have probably played 22.Bf3! making the threat of Nc6 even stronger. Instead he played 22.Nc6 immediately and while retaining an advantage, was probably not enough to win. 22...Bxc6 23.dxc6 Qc7 24.Qe4 Rbe8 25.Qd5 Re6
26.Bg4. At first sight this looks very strong, but Vallejo in fact has only forced a draw. 26...Nxg4 27.Rxe6 fxe6 28.Qxe6+ Rf7 29.Qe8+ Rf8 30.Qe6+ Rf7 31.Qe8+ Rf8 32.Qe6+ ½-½
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