Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. a4
O-O 9. Bc4 Nc6 10. Qd2 Bg4 11. Ng5 h6 12. Nxf7 Rxf7 13. Bxf7+ Kxf7 14. f3 Be6
15. Nd5 Qa5 16. Nxe7 Qxd2+ 17. Bxd2 Kxe7 18. O-O-O d5 19. exd5 Nxd5 20. Rhe1
Kf6 21. g3 Re8 22. Be3 Nxe3 23. Rxe3 Nd4 24. c3 Nb3+ 25. Kc2 Nc5 26. Rde1 Bb3+
27. Kc1 Rd8 28. Kb1 Rd2 29. R3e2 Bc2+ 30. Kc1 *
Position (FEN): 8/1p4p1/p4k1p/2n1p3/P7/2P2PP1/1PbrR2P/2K1R3 b - - 12 30
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1252
Best move: Nb3#