Chess puzzle (Advantage)
Opening: Four_Knights_Game, Four_Knights_Game_Other_variations
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. b3 d6 5. Bb5 a6 6. Bxc6+ bxc6 7. Bb2 Be7 8.
O-O O-O 9. Qe2 Bg4 10. h3 Bh5 11. Qe3 Qd7 12. d4 exd4 13. Nxd4 Rfe8 14. Nf5 Bg6
15. Bc1 Nxe4 16. Qxe4 Qxf5 17. Qxf5 *
Position (FEN): r3r1k1/2p1bppp/p1pp2b1/5Q2/8/1PN4P/P1P2PP1/R1B2RK1 b - - 0 17
Black to move.
Themes:  Middlegame  
Puzzle rating: 679
Best move: Bxf5