Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 dxc4 3. Nc3 e6 4. Nf3 a6 5. e4 h6 6. a4 b6 7. Bxc4 Bb7 8. O-O
Nf6 9. Bd3 Bb4 10. Qb3 Bxc3 11. Qxc3 Bxe4 12. Bxe4 Nxe4 13. Qd3 Qd5 14. Re1 Nf6
15. Re5 Qd7 16. Be3 Nc6 17. Rc1 Nxe5 18. Nxe5 Qd6 19. g3 Rc8 20. Bf4 Qd5 21.
Qxa6 O-O 22. Qd3 Nd7 23. Nc6 Rfe8 24. Qe3 Nf6 25. a5 bxa5 26. Rc5 Qe4 27. Qd2
Nd5 28. Nxa5 Nxf4 29. Qxf4 Qxf4 30. gxf4 Kh7 31. b4 Kg6 32. Nc6 f6 33. b5 Ra8
34. Nb4 Rec8 35. Nc6 Kf7 36. Kg2 g6 37. d5 exd5 38. Rxd5 Ra4 39. Rd7+ Ke8 40.
Rg7 Rxf4 41. Rxg6 h5 42. Rh6 Rf5 43. Rh8+ Kd7 44. Rh7+ Kd6 45. Ne7 Rg5+ 46. Kf3
Rb8 47. h4 Rc5 48. Ke4 Rbxb5 49. Nc8+ Ke6 *
Position (FEN): 2N5/2p4R/4kp2/1rr4p/4K2P/8/5P2/8 w - - 2 50
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 951
Best move: Re7#