Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 c5 5. cxd5 exd5 6. g3 Nc6 7. Bg2 Bg4 8. O-O
Bxf3 9. exf3 cxd4 10. Nb5 Qb6 11. Re1+ Kd8 12. a4 a6 13. Na3 Bxa3 14. Rxa3 Na5
15. Bg5 Qxb2 16. Rd3 h6 17. Rxd4 hxg5 18. Rxd5+ Nxd5 19. Qxd5+ Kc8 20. Qxa5 Qf6
21. Rc1+ Kb8 22. Qc7+ Ka7 23. Rb1 Rab8 24. f4 Rhc8 25. Qa5 Qc3 26. Qd5 Rc7 27.
Be4 gxf4 28. a5 fxg3 29. hxg3 Qc5 30. Qd2 f5 31. Bf3 Qc2 32. Qe3+ Ka8 33. Rb6
Qc1+ 34. Kg2 Qxe3 35. fxe3 g5 *
Position (FEN): kr6/1pr5/pR6/P4pp1/8/4PBP1/6K1/8 w - - 0 36
White to move.
Themes: Pin Endgame Mate in 1 
Puzzle rating: 1282
Best move: Rxa6#