Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Advance_Variation
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Bd3 cxd4 7. cxd4 Qb6 8. Nc3
Nxd4 9. Nxd4 Qxd4 10. O-O Qxe5 11. Re1 Qd6 12. Nb5 Qb6 13. Be3 Qd8 14. Rc1 Rc8
15. Nxa7 Rxc1 16. Qxc1 Nf6 17. Nb5 Bxb5 *
Position (FEN): 3qkb1r/1p3ppp/4pn2/1b1p4/8/3BB3/PP3PPP/2Q1R1K1 w k - 0 18
White to move.
Themes:  Middlegame  
Puzzle rating: 770
Best move: Bxb5+