Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. b3 Ngxe5 7. Nbd2 O-O 8.
Bb2 Re8 9. Nxe5 Nxe5 10. Nf3 Bb4+ 11. Nd2 a5 12. a3 Bc5 13. Nf3 Nxf3+ 14. Qxf3
Ra6 15. Bd3 Rh6 16. g4 d6 17. h4 Rxh4 18. O-O-O Bxg4 19. Qg3 Rxh1 20. Rxh1 h5
21. Rxh5 Bxa3 22. Qxg4 Bxb2+ 23. Kxb2 Qf6+ 24. Ka3 *
Position (FEN): 4r1k1/1pp2pp1/3p1q2/p6R/2P3Q1/KP1BP3/5P2/8 b - - 2 24
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 938
Best move: Qa1#