Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. Nf3 d5 3. e5 c5 4. c3 Nc6 5. d4 cxd4 6. cxd4 Nge7 7. Bb5 Bd7 8. Bd2
Nf5 9. Bxc6 bxc6 10. O-O c5 11. Bc3 cxd4 12. Nxd4 Nxd4 13. Qxd4 Be7 14. f4 O-O
15. f5 f6 16. fxe6 fxe5 17. Qxd5 Rxf1+ 18. Kxf1 Bb5+ 19. Qxb5 Qd1+ 20. Kf2 Rf8+
21. Kg3 h5 22. h3 Rf3+ 23. gxf3 *
Position (FEN): 6k1/p3b1p1/4P3/1Q2p2p/8/2B2PKP/PP6/RN1q4 b - - 0 23
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1473
Best move: Qg1#