Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Stafford_Gambit
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nf3 Bc5 5. e5 Ng4 6. d4 Nxd4 7. Nxd4 Qh4 8.
g3 Nxf2 9. Kxf2 Qxd4+ 10. Qxd4 Bxd4+ 11. Be3 *
Position (FEN): r1b1k2r/pppp1ppp/8/4P3/3b4/4B1P1/PPP2K1P/RN3B1R b kq - 1 11
Black to move.
Themes:  Middlegame  
Puzzle rating: 1269
Best move: Bxb2