[Event "Simultaneous Exhibition"] [Site "?"] [Round "0"] [White "Kasparov"] [Black "Wahls"] [Result "1-0"] [ECO "E10"] [Opening "Neo-Indian: Blumenfeld/Benoni"] 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 {The Benoni is favored by aggressive players due to the unbalanced pawn structure.} 7. Bf4 Bg7 8. Qa4+ {With the idea of disrupting Black's defense of his queenside.} 8... Bd7 9. Qb3 Qc7 10. e4 {10.Bxd6 Qxd6 11.Qxb7 O-O 12.Qxa8 Qb6 with the idea of trapping the queen with 13...Na6 is good for Black.} 10... Nh5 11. Be3 O-O 12. Nd2 Bd4 13. Be2 Bxe3 14. fxe3 {The weakened dark squares around Black's king are far more serious than the doubled White e-pawns.} 14... Ng7 { 14...a6 15.Bxh5 gxh5 is clearly better for White on account of Black's shattered pawn structure.} 15. O-O {White has the advantage due to Black's weak dark squares and backward development.} 15... a6 16. e5 {A pawn sacrifice which allows White's knights to take advantage of Black's dark squared weaknesses.} 16... dxe5 17. Nce4 b5 { 17...f5 allows White a winning continuation.} 18. Rac1 c4 19. Nf6+ Kh8 20. Qb4 Qd8 21. Nde4 {White's knights have a total lock on the Black army.} 21... Bf5 22. Qe1 {With the idea of transferring the queen over to the kingside attack.} 22... Nd7 23. Qh4 g5 { 23...h5 24.Qg5 Nxf6 25.Nxf6 when Black has no defense to 26.Qh6+ mate.} 24. Qh6 Bg6 {24...Qe7 25.Rxf5 Nxf5 26.Qxh7+ mate. Now for a somewhat difficult quiz!} 25. Nxh7 { This sacrifice on h7 does away with any resistance Black might have offered.} 25... Bxh7 26. Nxg5 { Black resigned since he has no good defense to White's intended 27.Qxh7+ mate.} 1-0