Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Bowdler_Attack
Moves: 1. e4 c5 2. Bc4 g6 3. Nf3 e6 4. d4 cxd4 5. Qxd4 Nf6 6. Bg5 Bg7 7. e5 Nc6 8. Qh4
Nxe5 9. Nxe5 Qa5+ 10. Nc3 Qxe5+ 11. Be2 O-O *
Position (FEN): r1b2rk1/pp1p1pbp/4pnp1/4q1B1/7Q/2N5/PPP1BPPP/R3K2R w KQ - 2 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1773
Best move: f4