Tuesday, August 2, 2016

King's Indian Nf5+! vs Blumetti

In the early 1980s I was young, energetic and playing popular openings reasonably well. I played John Blumetti in two postal chess games in 1981, one game with each color. Both were Indian Defence games after 1.d4 Nf6 2.c4 g6 3.Nc3. As Black I played the Gruenfeld Defence with 3…d5. As Black Blumetti played a King's Indian Defence 3…g6.

I chose a Saemisch after dancing around 4.e4 0-0 5.Be3 d6 6.f3. I had no interest in 5.e5!? The normal Saemisch is 4.e4 d6 5.f3. Chess strategy in the sharper Saemisch lines is for White to castle queenside and Black to castle kingside. In our game Black opened the b-file with 9…b5 and 10…bxc4. He got no further. White lined up 5.Be3 and 8.Qd2 for 9.Bh6. After 10.h4 and 13.g4 the knight swung to g3 with 7.Nge2 and 14.Ng3.

One thematic continuation is the knight sacrifice Nf5 as explained by Hans Kmoch in his classic book “Pawn Power in Chess”. This I wrote about in Menchik - Thomas from a Kings Indian Defence and in Sawyer - Regan from an f3 Pirc Defence.

This tactical motif leaves the knight vulnerable to the capture by g6xf5. The danger is that Black can grab the piece and survive. My problem is that I am so tempted to play this that I could be premature in leaping my horse into battle. In our game 19.Nf5+! gxf5 gave White an instant victory with the threat 22.Qg2.

Sawyer (2100) - Blumetti (1762), corr APCT 1981 begins 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 0-0 5.Be3 d6 6.f3 Nc6 7.Nge2 a6 8.Qd2 Rb8 9.Bh6!? [Probably premature. More common are 9.h4 or 9.Nc1] 9...b5 10.h4 bxc4 [10...Bxh6 11.Qxh6 e5=] 11.Bxg7 Kxg7 12.h5 e6 13.g4 [13.hxg6 fxg6 14.Qh6+ Kf7 15.0-0-0] 13...Rh8!? 14.Ng3 h6 15.hxg6 fxg6 16.0-0-0 Bb7? [16...e5=] 17.Bxc4 e5? [Suddenly all Black's defenses collapse. 17...Qe7 18.Kb1+/-] 18.g5 Ng8 19.Nf5+! gxf5 20.gxh6+ Kh7 21.Rdg1 1-0

You may also like: King Pawn (1.e4 e5) and Sicilian (1.e4 c5)
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