Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Bc4 a6 6. Nf3 Nc6 7. O-O Nge7 8.
Qe2 Ng6 9. Rd1 Be7 10. Nd5 exd5 11. exd5 O-O 12. dxc6 bxc6 13. Be3 d5 14. Bd3
c5 15. Rac1 Qc7 16. h4 Bg4 17. Bxg6 fxg6 18. Rxd5 Kh8 19. Bxc5 Bxc5 20. Rcxc5
Qf7 21. Rd3 Qxa2 22. Rc7 Rae8 23. Re7 Qa4 24. Rxe8 Qxe8 25. Qxe8 Rxe8 26. Ng5
h6 27. Nf7+ Kg8 28. Nd6 Rd8 29. Rd2 Be6 30. f3 Rb8 31. Kf2 a5 32. Ne4 Bf5 33.
Nc3 Rb4 34. g4 Be6 35. Kg3 g5 36. hxg5 hxg5 37. Ne4 Kf7 38. Nxg5+ Kf6 39. Rd6
Kxg5 40. Rxe6 Rb3 41. Ra6 Rxb2 *
Position (FEN): 8/6p1/R7/p5k1/6P1/5PK1/1r6/8 w - - 0 42
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1581
Best move: f4#