Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. a4 Nc6 5. Bc4 Qc7 6. O-O Nf6 7. d3 Ng4 8. h3 h5
9. Re1 Nd4 10. Be3 Nxf3+ 11. Qxf3 Qh2+ 12. Kf1 Ne5 13. Qf4 Qxf4 14. Bxf4 Nxc4
15. dxc4 d6 16. Red1 e5 17. Bg5 Be6 18. b3 f6 19. Be3 Kf7 20. a5 Be7 21. Na4
Rad8 22. Nb6 g6 23. c3 Rhf8 24. Ke2 Kg7 25. Rd2 f5 26. f3 fxe4 27. fxe4 g5 28.
Rad1 g4 29. Rh1 Kg6 30. Kd3 Rf7 31. hxg4 Bxg4 32. Nd5 Bf8 33. b4 cxb4 34. cxb4
Bg7 35. Rb1 Rdf8 36. b5 Rf1 37. Rbb2 Rc1 38. bxa6 bxa6 39. Rb7 Rff1 40. Ne7+
Kh7 41. Rb6 Be6 42. Nd5 Bd7 43. Rxd6 Ba4 44. c5 *
Position (FEN): 8/6bk/p2R4/P1PNp2p/b3P3/3KB3/3R2P1/2r2r2 b - - 0 44
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 999
Best move: Bb5#