Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. e4 d6 5. Nc3 O-O 6. Be3 e5 7. d5 a5 8. Nge2 Na6
9. Ng3 c6 10. Be2 Qc7 11. Qd2 Nd7 12. Bh6 Ndc5 13. h4 Nb4 14. h5 Bxh6 15. Qxh6
Nc2+ 16. Kd2 Nxa1 17. Rxa1 f5 18. hxg6 hxg6 19. Qxg6+ Qg7 20. Qxg7+ Kxg7 21.
exf5 Bxf5 22. Nxf5+ Rxf5 23. Bd3 Nxd3 24. Kxd3 Rg5 25. g4 Rf8 26. Ke3 Rg6 27.
Ne4 Rh6 28. dxc6 bxc6 29. Rd1 Rd8 30. Nc5 Kf7 31. Nb7 Rd7 32. Nc5 Ra7 33. Ne4
Ke7 34. Ng3 Rh2 35. Nf5+ Kf8 36. Rxd6 Rxb2 37. Rxc6 Rxa2 38. g5 Rg2 39. g6 a4 *
Position (FEN): 5k2/r7/2R3P1/4pN2/p1P5/4KP2/6r1/8 w - - 0 40
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1327
Best move: Rc8#