Chess puzzle (Advantage)
Moves: 1. c4 e5 2. Nc3 Bc5 3. d3 d6 4. Nf3 Nf6 5. g3 Nc6 6. Bg2 O-O 7. O-O h6 8. a3
Nd4 9. e3 Nxf3+ 10. Bxf3 Bh3 11. Re1 Qd7 12. b4 Bb6 13. Bxb7 Rab8 14. Bh1 Ng4
15. Nd5 c6 16. Nxb6 axb6 17. f3 Nf6 18. Bg2 d5 19. cxd5 Nxd5 20. e4 Bxg2 21.
Kxg2 Nc3 22. Qc2 Nb5 23. a4 Ra8 24. Be3 Nd4 25. Qc3 f5 26. exf5 Rxf5 27. Qc4+
Kh8 28. b5 *
Position (FEN): r6k/3q2p1/1pp4p/1P2pr2/P1Qn4/3PBPP1/6KP/R3R3 b - - 0 28
Black to move.
Themes:  Middlegame  
Puzzle rating: 1846
Best move: cxb5