Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 d5 3. exd5 Qxd5 4. Qe2 e4 5. Nc3 Qf5 6. Qxe4+ Qxe4+ 7. Nxe4 Bf5
8. d3 Nc6 9. c3 O-O-O 10. Be3 Nf6 11. Be2 Nxe4 12. dxe4 Bxe4 13. O-O h5 14. Ng5
Bg6 15. Rad1 Bd6 16. Bf3 Ne5 17. Bd5 f6 18. Ne4 Bxe4 19. Bxe4 g5 20. Bxa7 b6
21. f4 gxf4 22. Rxf4 Nc4 23. Rxf6 Bxh2+ 24. Kxh2 Rxd1 25. b3 Na5 26. b4 Nc4 27.
Bd5 Rxd5 28. Rf4 Nd6 29. Rf6 Kb7 30. Bxb6 cxb6 31. a4 Nc4 32. Rf4 Ne3 33. Rf3
Re5 34. g3 h4 35. Rf7+ Ka6 36. b5+ Ka5 *
Position (FEN): 7r/5R2/1p6/kP2r3/P6p/2P1n1P1/7K/8 w - - 1 37
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 521
Best move: Ra7#