Chess puzzle (Checkmate)
Moves: 1. e4 g6 2. h4 Bg7 3. h5 c5 4. d3 Nc6 5. Nf3 e6 6. h6 Bf6 7. Nc3 d5 8. exd5
exd5 9. Bf4 Nge7 10. Bg5 Bxg5 11. Nxg5 O-O 12. Qf3 Nf5 13. Nh3 Ncd4 14. Qxd5
Nxc2+ 15. Kd2 Nxa1 16. Be2 Be6 17. Qe5 Qd4 18. Qxd4 cxd4 19. Ne4 f6 20. Rxa1
Kf7 21. Nf4 Rfd8 22. Nxe6 Kxe6 23. Bg4 Kf7 24. Bxf5 gxf5 25. Ng3 Kg6 26. Rh1
Rd5 27. Rh4 Re8 28. Ne2 Ra5 29. a3 Rb5 30. b4 a5 31. Nxd4 Rb6 32. b5 a4 33. g3
Re5 34. Kc3 Re1 35. Kb4 Rb1+ 36. Kxa4 Rd6 37. Ne2 Rd8 38. Ka5 Rd6 39. Nf4+ Kf7
40. Rh5 Rb3 41. a4 Ra6+ 42. bxa6 *
Position (FEN): 8/1p3k1p/P4p1P/K4p1R/P4N2/1r1P2P1/5P2/8 b - - 0 42
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1169
Best move: b6#