Chess puzzle (Advantage)
Moves: 1. e4 d5 2. exd5 c6 3. dxc6 Nxc6 4. Nf3 Nf6 5. a3 e6 6. Nc3 Bc5 7. h3 O-O 8.
Be2 e5 9. d3 Nd4 10. Na4 Nxf3+ 11. Bxf3 Qa5+ 12. Nc3 Qb6 13. O-O Be6 14. Rb1
Rad8 15. Bg5 Bf5 16. Na4 Qd6 17. Nxc5 Qxc5 18. Bxb7 h6 19. Be3 Qa5 20. Re1 e4
21. f3 *
Position (FEN): 3r1rk1/pB3pp1/5n1p/q4b2/4p3/P2PBP1P/1PP3P1/1R1QR1K1 b - - 0 21
Black to move.
Themes:  Middlegame  
Puzzle rating: 1735
Best move: exd3