Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Nge2 c5 6. d5 e6 7. Ng3 exd5 8. exd5
h5 9. Be2 d6 10. Bg5 Qa5 11. Qd2 Re8 12. O-O Nbd7 13. Kh1 a6 14. f4 Nh7 15. Bh4
f5 16. Rae1 Ndf6 17. Bd3 Bd7 18. Bb1 b5 19. Rxe8+ Rxe8 20. Re1 Ng4 21. Rxe8+
Bxe8 22. Qe2 Bf7 23. h3 Bf6 24. Bxf6 Ngxf6 25. Qe7 Qb6 26. Bxf5 Qb8 27. Be6 Qf8
28. Qxf8+ Nxf8 29. cxb5 axb5 30. Nxb5 Nxe6 31. dxe6 Bxe6 32. a4 Bd7 33. Ne2 d5
34. Kg1 d4 35. Kf2 Nd5 36. Kf3 h4 37. Ke4 Nb6 38. b3 Kf7 39. Ke5 Ke7 40. Nc1
Bc6 41. Nd3 *
Position (FEN): 8/4k3/1nb3p1/1Np1K3/P2p1P1p/1P1N3P/6P1/8 b - - 6 41
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1308
Best move: Nd7#