Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be3 Nf6 6. Nc3 Bb4 7. Bd3 Qa5 8.
Bd2 d5 9. exd5 Nxd5 10. Nxd5 Bxd2+ 11. Qxd2 Qxd5 12. O-O O-O 13. b3 h6 14. Rad1
b5 15. Rfe1 f5 16. Nf3 Rd8 17. c4 bxc4 18. Bxc4 Qxd2 19. Nxd2 Kf7 20. Nf3 Rxd1
21. Rxd1 Nc6 22. Rd6 Ne7 23. Ne5+ Kf6 24. Nf3 Ng6 25. h3 a5 26. Rb6 Nf4 27. Kh2
g5 28. Nd4 Ke5 29. Nc6+ Kd6 30. Nxa5+ Kc7 31. Rb5 Bd7 32. Rc5+ Kb6 33. b4 Ng6
34. a3 Ne7 35. Bxe6 Bxe6 36. Re5 Bd5 37. Rxe7 Rc8 38. Rd7 Ba8 39. Rd6+ Kb5 40.
Rxh6 Rc2 41. f3 Bxf3 42. Kg3 Be4 43. h4 Rxg2+ 44. Kh3 *
Position (FEN): 8/8/7R/Nk3pp1/1P2b2P/P6K/6r1/8 b - - 1 44
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 897
Best move: g4#