Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Qd2 Nc6 8. f3
O-O 9. O-O-O d5 10. Qe1 e5 11. Nxc6 bxc6 12. exd5 cxd5 13. Bg5 Be6 14. Bc4 Qc7
15. Bxf6 dxc4 16. Bxg7 Kxg7 17. Qe3 Rab8 18. Rhe1 f6 19. Ne4 Qa5 20. a3 Rfc8
21. Qc3 Qxc3 22. Nxc3 Rd8 23. Ne4 Bf5 24. Nc5 c3 25. b3 Rbc8 26. Nb7 Rd2 27.
Nd6 Rxc2+ 28. Kb1 Rb2+ 29. Ka1 Rxb3 30. Nxc8 *
Position (FEN): 2N5/p5kp/5pp1/4pb2/8/Prp2P2/6PP/K2RR3 b - - 0 30
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1276
Best move: Rxa3#