Chess puzzle (Checkmate)
Moves: 1. d4 e6 2. c4 d5 3. Nf3 c5 4. Nc3 Nf6 5. Bg5 Be7 6. e3 O-O 7. Qc2 h6 8. Bh4 a6
9. Be2 Nc6 10. dxc5 Bxc5 11. cxd5 Nb4 12. Qb1 Be7 13. dxe6 Bxe6 14. a3 Nbd5 15.
Nxd5 Nxd5 16. Bxe7 Qxe7 17. O-O Qf6 18. Nd4 Rfd8 19. Bf3 Rab8 20. Nxe6 Qxe6 21.
Bxd5 Rxd5 22. Rd1 Rg5 23. Qd3 Qg4 24. Qd6 *
Position (FEN): 1r4k1/1p3pp1/p2Q3p/6r1/6q1/P3P3/1P3PPP/R2R2K1 b - - 5 24
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 777
Best move: Qxg2#