Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. Nc3 e6 4. Bd3 Bb4 5. Ne2 dxe4 6. Bxe4 Nf6 7. Bg5 h6 8.
Bxf6 Qxf6 9. Qd3 Nd7 10. f3 c5 11. O-O-O O-O 12. Kb1 Re8 13. g4 a5 14. h4 a4
15. a3 Bxc3 16. Nxc3 cxd4 17. Ne2 e5 18. g5 Qb6 19. gxh6 Qxh6 20. Rdg1 Nc5 21.
Qc4 Nxe4 22. fxe4 Be6 23. Qd3 Reb8 24. Rg5 f6 25. Rg3 b5 26. Rhg1 Ra7 27. Rg6
Qxh4 28. Qf3 b4 29. Rh1 Qxh1+ 30. Qxh1 bxa3 31. Qg1 axb2 32. Rxf6 a3 33. Rxe6 *
Position (FEN): 1r4k1/r5p1/4R3/4p3/3pP3/p7/1pP1N3/1K4Q1 b - - 0 33
Black to move.
Themes: Advanced Pawn Endgame Mate in 1 
Puzzle rating: 665
Best move: a2#