Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. e3 g6 3. f4 Bg7 4. Nf3 d6 5. Bc4 O-O 6. O-O c5 7. c3 cxd4 8. exd4
Nc6 9. Qe1 e5 10. fxe5 dxe5 11. dxe5 Ng4 12. e6 fxe6 13. Bxe6+ Kh8 14. Bxc8
Rxc8 15. Na3 Qb6+ 16. Kh1 Rce8 17. Qg3 Nce5 18. Bf4 Qxb2 19. Nxe5 Nxe5 20. Bxe5
Rxf1+ 21. Rxf1 Bxe5 22. Nc4 Qe2 23. Re1 Qxc4 24. Rxe5 *
Position (FEN): 4r2k/pp5p/6p1/4R3/2q5/2P3Q1/P5PP/7K b - - 0 24
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1010
Best move: Qf1#