Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. f4 Ng8 6. Nf3 Bxg5 7. fxg5 h6 8. Qd2
hxg5 9. Nxg5 Nc6 10. cxd5 exd5 11. h4 Bf5 12. Qf4 Nxd4 13. Qxd4 c6 14. Qxg7 Qf6
15. Qxf6 Nxf6 16. O-O-O Ng4 17. e4 Nf2 18. exf5 Nxh1 19. Re1+ Kd7 20. Nxf7 Rxh4
21. Ne5+ Kc7 22. g3 Nxg3 23. Bd3 Rh5 24. Nf3 Nxf5 25. Re5 Rh1+ 26. Kc2 Nd6 27.
Re7+ Kb6 28. Na4+ Ka5 29. b3 b5 30. Nc5 Rf8 31. Rxa7+ Kb6 32. Nd7+ Kxa7 33.
Nxf8 Rh3 34. Ne5 Rh2+ 35. Kc3 c5 36. Nfd7 *
Position (FEN): 8/k2N4/3n4/1pppN3/8/1PKB4/P6r/8 b - - 1 36
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1240
Best move: b4#