Chess puzzle (Checkmate)
Moves: 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. a4 d6 5. Be3 Nf6 6. f3 O-O 7. h4 h5 8. Nh3 Bxh3
9. Rxh3 Nbd7 10. Qd2 e5 11. Bc4 Qe7 12. d5 Nb6 13. Bb3 cxd5 14. Nxd5 Nbxd5 15.
Bxd5 Nxd5 16. Qxd5 Rfc8 17. O-O-O Rc6 18. Rd2 Qe6 19. b3 a6 20. Rh1 Rac8 21. c4
Bf6 22. g3 Bd8 23. Rhd1 Be7 24. Kb2 Qh3 25. Rg1 Qe6 26. Qxe6 fxe6 27. f4 Bf6
28. Kb1 Kf7 29. Rf1 Ke7 30. f5 gxf5 31. exf5 Rg8 32. fxe6 Rxg3 33. Rdf2 Rxe3
34. Rxf6 Rxb3+ 35. Ka2 Rb4 36. Rh6 d5 37. Rf7+ Kd6 38. e7+ Kd7 39. Rh8 Re6 40.
e8=Q+ Kd6 41. Rd7+ Kc5 42. Qxe6 Kd4 43. Rxd5+ Kc3 44. Rd3+ Kxd3 45. Rd8+ Kc2
46. Qxe5 *
Position (FEN): 3R4/1p6/p7/4Q2p/PrP4P/8/K1k5/8 b - - 0 46
Black to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 1246
Best move: Rxa4#