Chess puzzle (Checkmate)
Moves: 1. Nc3 e6 2. e4 Nf6 3. d4 c5 4. d5 e5 5. f4 d6 6. fxe5 dxe5 7. Nf3 Bd6 8. Nb5
a6 9. Nxd6+ Qxd6 10. Bd3 Bg4 11. h3 Bxf3 12. Qxf3 Nbd7 13. a4 O-O 14. g4 Rac8
15. b3 Nb6 16. Ba3 Rfd8 17. g5 Nfd7 18. h4 Nf8 19. O-O-O Ng6 20. Kb1 Nf4 21. c4
Nd7 22. Bc1 b6 23. Bxf4 exf4 24. Rhf1 Ne5 25. Qxf4 b5 26. cxb5 axb5 27. Bxb5
Rb8 28. h5 c4 29. h6 cxb3 30. hxg7 Rdc8 31. Rd2 Rc7 32. Rh2 Rbc8 33. Rff2 Qa3
34. Rb2 Rc2 35. Rhxc2 bxc2+ 36. Rxc2 Qb3+ 37. Rb2 Qd1+ 38. Ka2 Nd3 39. Bxd3
Qxa4+ 40. Kb1 Qd1+ 41. Ka2 Ra8+ 42. Ba6 *
Position (FEN): r5k1/5pPp/B7/3P2P1/4PQ2/8/KR6/3q4 b - - 5 42
Black to move.
Themes: Hanging Piece Endgame Mate in 1 
Puzzle rating: 964
Best move: Rxa6#