Chess puzzle (Advantage)
Opening: English_Defense, English_Defense_Other_variations
Moves: 1. d4 b6 2. e4 Bb7 3. Nc3 e6 4. Nf3 Bb4 5. Bf4 Nc6 6. Qd3 Qe7 7. Be2 Nf6 8.
O-O-O O-O 9. h3 d5 10. e5 Nd7 11. g4 Na5 12. b3 c5 13. h4 c4 14. Qe3 cxb3 15.
axb3 Rfc8 16. Nb5 a6 17. Nd6 Rc3 18. Bd3 Nxb3+ 19. Kb2 Bc6 *
Position (FEN): r5k1/3nqppp/ppbNp3/3pP3/1b1P1BPP/1nrBQN2/1KP2P2/3R3R w - - 2 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1789
Best move: cxb3