Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 d6 3. Bc4 Nc6 4. c3 e6 5. d4 cxd4 6. cxd4 a6 7. O-O b5 8. Bb3
Bb7 9. d5 exd5 10. exd5 Na5 11. Re1+ Be7 12. Nc3 Nf6 13. Ne4 O-O 14. Nxf6+ Bxf6
15. Qd2 Nxb3 16. axb3 Qc7 17. Qd3 Qc5 18. Rd1 Rfe8 19. Be3 Qc7 20. Rac1 Qd7 21.
Rc2 Qg4 22. Rc7 Bc8 23. Nd4 Bxd4 24. Bxd4 Bf5 25. Qf3 *
Position (FEN): r3r1k1/2R2ppp/p2p4/1p1P1b2/3B2q1/1P3Q2/1P3PPP/3R2K1 b - - 2 25
Black to move.
Themes:  Middlegame  
Puzzle rating: 1865
Best move: Qxd4