Sunday, May 10, 2020

Gruenfeld Defense: Exchange Variation

FIDE Online Nations Cup
May 2020

1.d4, Nf6
2. c4, g6
3. Nc3, d5
4. cxd5, Nxd5
5. Bd2, Bg7
6. e4, Nxc3
7. Bxc3, c5
8. d5! ...

Anand opts to neutralize immediately Black's g7 Bishop.  This is part of his overall strategy.

8. ... Bxc3
9. bxc3, Qd6

Black hopes to control the c7-h2 diagonal.

10. Qd2, 0-0
11. f4! ...

Most common chess engines regard this as White's best move, in preparation for a center advance.

11. ... e6
12. Nf3, exd5
13. Bc4 ...

If the d5 pawn is taken, White's King would be in danger.

13. ... Be6
14. 0-0, d4
15. f5! ...

 An unexpected move.  White sacrifices a Bishop for a great pawn advance.

15. ... Bxc4

Black should have sacrificed this Bishop to neutralize White's impending attack.  Best move is Bxf5.

If 15...gxf5 then 16. Qg5+ Kh8, 17. Qf6+ Kg8, 18. exf5! pinning the Bishop.

16. e5!, Qd7
17. f6!,  Resigns

Mate cannot be prevented at g7.

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