Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 Qe7 7. a3 Bxc3 8.
Bxc3 e5 9. d5 Nb8 10. e4 O-O 11. Be2 a5 12. b3 Nh5 13. g3 g6 14. Nd2 Ng7 15.
O-O f5 16. b4 Na6 17. c5 dxc5 18. b5 Nb8 19. Nc4 Nd7 20. Bxa5 b6 21. d6 cxd6
22. Bxb6 f4 23. a4 Ne6 24. a5 Nd4 25. Qd1 f3 26. Bd3 Nxb5 27. Ne3 Nd4 28. Nd5
Qg5 29. Re1 Qh5 30. Nc7 Ba6 31. Bxa6 Rxa6 32. Qd3 Nxb6 33. Nxa6 c4 34. Qf1 Ne2+
35. Kh1 Nd7 36. Nc7 Nf6 37. Nd5 Ng4 38. h3 Nxf2+ 39. Qxf2 Qxh3+ 40. Qh2 Nxg3+
41. Kg1 f2+ 42. Qxf2 *
Position (FEN): 5rk1/7p/3p2p1/P2Np3/2p1P3/6nq/5Q2/R3R1K1 b - - 0 42
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 896
Best move: Qh1#