Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Nf3 c5 6. Be3 Nc6 7. Nb5 cxd4 8.
Bxd4 Nxd4 9. Qxd4 Bc5 10. Nd6+ Bxd6 11. exd6 Nb6 12. Qxg7 Rf8 13. Ng5 Qxd6 14.
Nxh7 Qb4+ 15. c3 Qe4+ 16. Be2 Nd7 17. Nxf8 Nxf8 18. Qg4 Qc2 19. Bb5+ Bd7 20.
Bxd7+ Nxd7 21. Qb4 b6 22. O-O Ne5 23. f4 Ng4 24. Qd6 Rd8 25. Qc6+ Rd7 26. f5
Ne3 27. fxe6 *
Position (FEN): 4k3/p2r1p2/1pQ1P3/3p4/8/2P1n3/PPq3PP/R4RK1 b - - 0 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 666
Best move: Qxg2#