Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. Be2 cxd4 7. cxd4 Bb5 8. O-O
Bxe2 9. Qxe2 Nc6 10. Be3 Nge7 11. Nc3 Nf5 12. Rfd1 Be7 13. g4 Nxe3 14. fxe3 O-O
15. Rf1 Rac8 16. Rf2 f6 17. exf6 Bxf6 18. g5 Be7 19. Raf1 Bd6 20. Nh4 g6 21.
Qg4 Rce8 22. Kg2 Rxf2+ 23. Rxf2 Qd8 24. Rf6 Qd7 25. Nxg6 hxg6 26. Rxg6+ Kf7 27.
Qh5 Ke7 28. Rg7+ Kd8 29. Rxd7+ Kxd7 30. Qg4 Ne7 31. h4 Nf5 32. Kf3 Rf8 33. Ke2
Rh8 34. Nxd5 Rxh4 35. Nf6+ Ke7 36. Qf3 Rh2+ 37. Kd3 Kf7 38. Qxb7+ Kg6 39. Ne4
Be7 40. a4 Rh3 41. Nc5 Rxe3+ 42. Kc4 Bxg5 43. b4 *
Position (FEN): 8/pQ6/4p1k1/2N2nb1/PPKP4/4r3/8/8 b - - 0 43
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 823
Best move: Nd6#