Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Cozio_Attack
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d4 d5 7. Be3 Bg4 8.
Qb5+ c6 9. Qb3 a5 10. Bd3 Bxf3 11. gxf3 a4 12. Qa3 Qf6 13. b4 Na6 14. fxe4 *
Position (FEN): r3kb1r/1p3ppp/n1p2q2/3p4/pP1PP3/Q2BB3/P1P2P1P/RN2K2R b KQkq - 0 14
Black to move.
Themes:  Middlegame  
Puzzle rating: 1095
Best move: Bxb4+