Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nd2 g6 5. e4 d6 6. Ngf3 Bg7 7. Bd3 O-O 8. O-O b4
9. a3 a5 10. h3 Nfd7 11. Re1 Na6 12. Ra2 Nb6 13. a4 b3 14. Qxb3 Nb4 15. Ra3 Bd7
16. Bb1 Qe8 17. e5 Bxa4 18. Qe3 Qd8 19. b3 Bd7 20. e6 fxe6 21. dxe6 Bc6 22. Ng5
Bd4 23. Qg3 Bxf2+ 24. Qxf2 Rxf2 25. Kxf2 d5 26. Nf7 Qc7 27. Nf3 d4 28. N3e5 Rf8
29. Bf4 d3 30. Nxg6 Qb7 31. Nxf8 Kxf8 32. Rxa5 Bxg2 33. Kg1 Bxh3 34. Kf2 Qg2+
35. Ke3 Bxe6 36. Ng5 Bxc4 37. Nxh7+ Kg7 38. Rxc5 d2 39. Rd1 Qe2+ 40. Kd4 Qxd1
41. Rg5+ Kf7 42. Rf5+ Ke6 *
Position (FEN): 8/4p2N/1n2k3/5R2/1nbK1B2/1P6/3p4/1B1q4 w - - 4 43
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 2022
Best move: Nf8#