Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Accelerated_Dragon
Moves: 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 Qa5 8.
f3 Qb4 9. Bb3 Nxe4 10. Nxc6 Bxc3+ 11. bxc3 Qxc3+ 12. Ke2 dxc6 13. fxe4 *
Position (FEN): r1b1k2r/pp2pp1p/2p3p1/8/4P3/1Bq1B3/P1P1K1PP/R2Q3R b kq - 0 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 1015
Best move: Bg4+