Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Bc4 e6 3. Nh3 Nf6 4. e5 Nd5 5. d4 cxd4 6. Qxd4 Nc6 7. Qg4 Nxe5 8.
Qe4 Nxc4 9. Qxc4 Bb4+ 10. c3 b5 11. Qg4 Bf8 12. O-O Qf6 13. Qe4 Bd6 14. Re1 O-O
15. Bg5 Qg6 16. Qxg6 fxg6 17. Nd2 Bb7 18. g3 Nf6 19. Be3 Ng4 20. c4 Nxe3 21.
fxe3 b4 22. a3 Bc5 23. Nf4 Rf5 24. Nd3 Bd6 25. e4 Rf7 26. c5 Bc7 27. axb4 a6
28. Rf1 Raf8 29. Rxf7 Rxf7 *
Position (FEN): 6k1/1bbp1rpp/p3p1p1/2P5/1P2P3/3N2P1/1P1N3P/R5K1 w - - 0 30
White to move.
Themes:  Endgame  
Puzzle rating: 1747
Best move: b5