Chess puzzle (Advantage)
Moves: 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 c5 6. c4 cxd4 7. Nxd4 Nc6 8.
Nc3 a6 9. b3 Qc7 10. Bb2 d6 11. Rc1 Bd7 12. Nd5 Qd8 13. Nxc6 Bxc6 14. Nxf6+
Bxf6 15. Bxf6 exf6 16. Qd4 Qe7 17. e3 Rad8 18. Rfd1 Rd7 19. Rd2 Rfd8 20. Rcd1
Qe5 21. Bd5 Kf8 22. Qb6 Bxd5 23. Rxd5 Qe6 24. Qd4 Ke7 25. Kg2 h5 26. h3 Rc7 27.
Qd3 f5 28. Kf3 Rcd7 29. Qd4 Rc7 30. Kg2 Rcd7 31. c5 dxc5 32. Qxc5+ Ke8 33. Re5
Rxd1 34. Rxe6+ fxe6 35. Qe5 Kf7 36. Qc7+ R1d7 37. Qc3 Rd3 38. Qc7+ R3d7 39. Qc4
Kf6 40. Qc3+ Kf7 41. b4 Rd3 42. Qc7+ R8d7 43. Qe5 Rd8 44. a4 R3d5 45. Qc7+ R8d7
46. Qc8 Rd8 *
Position (FEN): 2Qr4/1p3k2/p3p1p1/3r1p1p/PP6/4P1PP/5PK1/8 w - - 5 47
White to move.
Themes:  Endgame, Queen and Rook Endgame  
Puzzle rating: 1537
Best move: Qxb7+