Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 c5 5. e5 h6 6. Bh4 g5 7. Bg3 Ng8 8. Nf3 Nc6
9. Bb5 Bd7 10. O-O Nge7 11. Bd3 c4 12. Nb5 Nf5 13. Bxf5 exf5 14. h3 Be6 15. Bh2
a6 16. Nc3 b5 17. a3 Be7 18. g3 b4 19. axb4 Nxb4 20. Qd2 h5 21. Ne1 h4 22. g4
fxg4 23. hxg4 Bxg4 24. Ng2 Be6 25. Ne3 g4 26. Bf4 Qd7 27. Kh1 g3 28. Rg1 gxf2
29. Qxf2 O-O-O 30. b3 cxb3 31. cxb3 Nd3 32. Qf3 Nxf4 33. Qxf4 Rdg8 34. Qf2 Qc6
35. Rac1 Bg5 36. Na4 Qxc1 37. Rxc1+ Kd8 38. Qc2 Bxe3 39. Qc7+ Ke8 40. Qd6 Rg3
41. Kh2 Bf4 42. Kh1 Rhg8 43. Rc3 *
Position (FEN): 4k1r1/5p2/p2Qb3/3pP3/N2P1b1p/1PR3r1/8/7K b - - 9 43
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1173
Best move: Rg1#