Chess puzzle (Checkmate)
Moves: 1. b4 e5 2. Bb2 f6 3. b5 d5 4. e3 Bd6 5. c4 c6 6. a4 cxb5 7. cxd5 bxa4 8. Qxa4+
Bd7 9. Qb3 b6 10. d4 exd4 11. Bxd4 Qc8 12. Nf3 Qc1+ 13. Qd1 Qxd1+ 14. Kxd1 Bf5
15. Nbd2 Nd7 16. Bb5 Ne7 17. e4 Bg6 18. Ke2 Bh5 19. h3 Bxf3+ 20. gxf3 Be5 21.
Nb3 Bf4 22. Bxd7+ Kxd7 23. Rhg1 Rhg8 24. Nd2 Be5 25. Bxe5 fxe5 26. Nc4 Ng6 27.
Ra3 Rgf8 28. Rg5 Rfe8 29. Ra6 Kc7 30. Rg4 Nf4+ 31. Ke3 g6 32. h4 h6 33. Ra1 a5
34. Rc1 Kd8 35. Nxb6 Rb8 36. Rc6 Rf8 37. Nc4 Rb3+ 38. Kd2 Rxf3 39. Nxa5 Rxf2+
40. Kc3 Kd7 41. Kb4 Rb8+ 42. Kc5 Rc2+ 43. Nc4 *
Position (FEN): 1r6/3k4/2R3pp/2KPp3/2N1PnRP/8/2r5/8 b - - 7 43
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1109
Best move: Nd3#