Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. e3 b6 6. Be2 Bb7 7. O-O O-O 8. Qc2
Nbd7 9. a3 c5 10. b4 cxd4 11. Nxd4 Rc8 12. Qb3 dxc4 13. Bxc4 Ne5 14. Be2 h6 15.
Bb2 Ne4 16. Nxe4 Bxe4 17. Ba6 Bd5 18. Qd1 Nc4 19. Bxc8 Nxb2 20. Qc2 Qxc8 21.
Qxb2 Bf6 22. Qd2 e5 23. Rac1 Qg4 24. f3 Qg5 25. f4 exf4 26. exf4 Bxd4+ 27. Qxd4
*
Position (FEN): 5rk1/p4pp1/1p5p/3b2q1/1P1Q1P2/P7/6PP/2R2RK1 b - - 0 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 826
Best move: Qxg2#