Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nc3 Nc6 3. f4 a6 4. a4 e6 5. Bc4 d6 6. Nf3 Nf6 7. d3 d5 8. Bb3 Nd4
9. O-O Nxb3 10. cxb3 Be7 11. e5 Nd7 12. d4 cxd4 13. Nxd4 Nc5 14. Be3 g6 15. Qc2
Bd7 16. Rac1 Rc8 17. Qf2 h5 18. b4 Nd3 19. Qe2 Nxc1 20. Rxc1 Bxb4 21. Qd3 O-O
22. Nce2 Rxc1+ 23. Nxc1 Bxa4 24. Nce2 Qc7 25. h3 h4 26. Nf3 Bb5 27. Qd1 Bc5 28.
Ned4 Qe7 29. Qe1 Bd3 30. Nxh4 Be4 31. Qf2 Rc8 32. Nhf3 Bxd4 33. Nxd4 Rc4 34.
Kh2 Qb4 35. Kg3 Qb3 36. Kh2 Qd3 37. Ne2 Rc2 38. Qh4 Rc8 39. Qf2 f5 40. exf6 Rc2
41. Qh4 Bxg2 42. f7+ Kxf7 43. Qh7+ Ke8 44. Qg8+ Kd7 45. Qf7+ Kc6 46. Qxe6+ Kb5
47. Qb6+ Ka4 48. Nc3+ Rxc3 49. bxc3 Qe2 *
Position (FEN): 8/1p6/pQ4p1/3p4/k4P2/2P1B2P/4q1bK/8 w - - 1 50
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1468
Best move: Qb4#