Chess puzzle (Advantage)
Opening: Alekhine_Defense, Alekhine_Defense_Other_variations
Moves: 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. f4 dxe5 5. fxe5 Bf5 6. Nf3 Nb4 7. Na3 e6 8. c3
N4c6 9. Bb5 Bxa3 10. Bxc6+ Nxc6 11. bxa3 O-O 12. O-O Qd5 13. Qb3 Be4 14. Qxb7
Bxf3 15. Rxf3 Nxd4 *
Position (FEN): r4rk1/pQp2ppp/4p3/3qP3/3n4/P1P2R2/P5PP/R1B3K1 w - - 0 16
White to move.
Themes:  Middlegame  
Puzzle rating: 1247
Best move: Qxd5