Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 d6 5. d4 Qe7 6. dxe5 Nxe5 7. Nxe5 Qxe5 8.
Qe2 Bg4 9. f3 Bh5 10. O-O O-O-O 11. Be3 d5 12. exd5 Nxd5 13. Nxd5 Bd6 14. Nf4
g5 15. Qd2 gxf4 16. Bd4 Bc5 17. c3 Rhg8 18. Rae1 Qg5 19. Re5 Qxe5 20. Qc2 Bxd4+
21. cxd4 Qe3+ 22. Kh1 Rxd4 23. Bb3 Rd2 24. Qf5+ Kb8 25. Qxh5 Rdxg2 26. Qxf7
Qg1+ 27. Rxg1 *
Position (FEN): 1k4r1/ppp2Q1p/8/8/5p2/1B3P2/PP4rP/6RK b - - 0 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 587
Best move: Rxg1#