Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. d4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. e4 d6 6. h3 c5 7. d5 b5 8. cxb5 a6
9. a4 axb5 10. Nxb5 Nxe4 11. Bd3 Nf6 12. O-O Bb7 13. Bc4 Nbd7 14. Re1 Nb6 15.
b3 Bxd5 16. Bxd5 Nbxd5 17. Bb2 Nc7 18. Qe2 Ne6 19. Rad1 Qb6 20. Qd3 Rfe8 21.
Nd2 Qb7 22. g3 Rad8 23. f4 d5 24. f5 Nc7 25. Nc3 d4 26. Nce4 Nxe4 27. Nxe4 Qd5
28. g4 Rb8 29. Nd2 e5 30. fxg6 hxg6 31. Nc4 Ne6 32. Qg3 f6 33. h4 Red8 34. g5
f5 35. Nxe5 Rxb3 36. Qh2 Rxb2 37. Qxb2 Bxe5 38. Qe2 Nf4 39. Qxe5 *
Position (FEN): 3r2k1/8/6p1/2pqQpP1/P2p1n1P/8/8/3RR1K1 b - - 0 39
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1042
Best move: Qg2#