Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. c3
d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. h3 Bxh3
15. gxh3 Qxh3 16. Be3 Bh2+ 17. Kh1 Nxe3 18. Rxe3 Bg3+ 19. Kg1 Qh2+ 20. Kf1 *
Position (FEN): r4rk1/5ppp/p1p5/1p6/3P4/1BP1R1b1/PP3P1q/RN1Q1K2 b - - 4 20
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 914
Best move: Qxf2#