Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 c5 3. d5 d6 4. c4 b5 5. e4 bxc4 6. Bxc4 Nxe4 7. O-O g6 8. Re1
Nf6 9. Bg5 Bg7 10. Qe2 O-O 11. Qxe7 Bf5 12. Nc3 h6 13. Bf4 Qxe7 14. Rxe7 Rd8
15. Nb5 Bf8 16. Re2 a6 17. Nc3 Ra7 18. Rae1 g5 19. Bg3 Nbd7 20. h4 g4 21. Nd2
Nb6 22. b3 Nh5 23. Nde4 Nxg3 24. Nxg3 Bh7 25. Re8 Rad7 26. Nce4 Bxe4 27. Nxe4
Kg7 28. Ng3 a5 29. Nf5+ Kf6 30. Ng3 a4 31. Nh5+ Kg6 32. Nf4+ Kf5 33. g3 axb3
34. axb3 Bg7 35. Nh5 Be5 36. Rxd8 Rxd8 *
Position (FEN): 3r4/5p2/1n1p3p/2pPbk1N/2B3pP/1P4P1/5P2/4R1K1 w - - 0 37
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1140
Best move: Bd3#