[Event "Zurich"] [Site "?"] [Round "0"] [White "Alekhine"] [Black "Lasker"] [Result "1-0"] [ECO "D37"] [Opening "QGD: 4.Nf3 Be7"] 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bg5 Nbd7 6. e3 O-O 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. Ne4 N5f6 12. Ng3 e5 13. O-O exd4 14. Nf5 Qd8 15. N3xd4 Ne5 16. Bb3 Bxf5 17. Nxf5 Qb6 18. Qd6 Ned7 19. Rfd1 Rad8 20. Qg3 g6 21. Qg5 Kh8 22. Nd6 Kg7 23. e4 Ng8 24. Rd3 f6 {Black's pieces are not well-coordinated for the defense. The bishop at b3 is controlling the a2-g8 diagonal. First White drives the king back into the corner.} 25. Nf5+ Kh8 { Now if we mentally remove the pawn at h7, we can slide the rook from d3 to h3 and deliver mate. Can you see the way to make thathappen?} 26. Qxg6 {The threat of mate at g7 forces Black to capture, but then Rh3+ leads to mate, so he resigned instead.} 1-0