Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Bc4 Be6 5. d3 Nxc3 6. bxc3 Bxc4 7. dxc4
Qxd1+ 8. Kxd1 Nc6 9. Bf4 O-O-O+ 10. Ke1 e5 11. Be3 Ba3 12. Ne2 f5 13. Rb1 f4
14. Bd2 g5 15. f3 h5 16. Nc1 g4 17. Nd3 Rdg8 18. c5 h4 19. Rb3 h3 20. gxh3 gxf3
21. Rxa3 Rxh3 22. Nf2 Rh4 23. c4 e4 24. Nxe4 Re8 25. Rxf3 Rxe4+ 26. Kd1 Rxc4
27. Rd3 Rxc5 28. Rg1 b6 29. h3 Rch5 30. Rg8+ Kb7 31. Rd7 Rxh3 32. Rgg7 Rh1+ 33.
Be1 Rc5 34. Rxc7+ Ka6 35. a4 f3 36. Kd2 Rh2+ 37. Ke3 Rhxc2 38. Kxf3 Ne5+ 39.
Ke4 Nc4 *
Position (FEN): 8/p1R3R1/kp6/2r5/P1n1K3/8/2r5/4B3 w - - 3 40
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 978
Best move: Rxa7#