Spanish Structure
Vsevolod Rauzer - Nikolay Riumin
Leningrad, 1936
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 d6 7.c3 b5 8.Bb3 Na5 9.Bc2 c5 10.d4 Qc7 11.Nbd2 Nc6 12.a4 Rb8 13.axb5 axb5 14.dxc5 dxc5 15.Nf1 Be6 16.Ne3 O-O 17.Ng5 Rfd8 18.Qf3 Rd6
Black has to cover potential outposts d5 and f5. White controls open a-file and Black controls d-file, but this is not of the major importance because all entry squares are well protected. White’s biggest problem are his passive Bishops and with his next move he’s trying to give them some air. 19. Ne6 is not the best because after fe6 Black is covering d5 and f5 and his single weakness e6 will be easily defended. 19. Ne6 Re6?! 20. Nd5! favors White.
19. Nf5 Bxf5
Russian author Mikhail Yudovich suggested 19…Rdd8 as better, but it seems that after 20. Ne6 fe6 21. Ne7 and Be3, White can create strong pressure on Black queenside pawns. Alexander Koblenz, coach of Mikhail Tal, also mentioned this game in his book but didn’t comment on Bf5.
20. exf5 h6
White’s doubled pawn has gained space allowing good chances for future advance of Kingside pawns. Before the advance, White has to improve his pieces and prevent opponent’s counterplay. The most important feature of exf5 is that White gets e4 square for transfer of his pieces. Instead of h6, better was 20…Rdd8, in order to meet Ne4 with Nd5.