Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 h5 6. c4 e6 7. Nc3 Be7 8. Be3
Nc6 9. Rc1 Nxd4 10. Qxd4 a6 11. Be2 Bd7 12. O-O Bc6 13. Rfd1 O-O 14. Qd2 Qb8
15. a4 Rc8 16. Kh1 b6 17. Bf4 Rd8 18. b4 Qb7 19. b5 axb5 20. cxb5 Be8 21. Qe3
Rac8 22. Rd3 Rc4 23. Rcd1 Rdc8 24. h4 Qc7 25. Rc1 Qc5 26. Qd2 Nd7 27. Qe1 Ne5
28. Re3 Rxa4 29. Na2 Rxa2 30. Rxc5 Rxc5 31. Rb3 Rcc2 32. Bf1 Ng6 33. Bg3 Bf6
34. Kh2 Bd4 35. Bxd6 Bf2 36. Qd1 Nxh4 37. Bg3 Bxg3+ 38. Kxg3 g5 39. Qd8 Kf8 40.
Qxg5 Ng6 41. Qxh5 e5 42. Qh6+ Ke7 43. Rd3 Bxb5 44. Qg5+ Ke6 45. Qf5+ Ke7 46.
Qg5+ Ke6 47. Rd8 Bxf1 48. Qf5+ Ke7 49. Rd7+ Ke8 *
Position (FEN): 4k3/3R1p2/1p4n1/4pQ2/4P3/5PK1/r1r3P1/5b2 w - - 4 50
White to move.
Themes: Attacking f2 or f7 Endgame Mate in 1 
Puzzle rating: 702
Best move: Qxf7#