Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Hyperaccelerated_Fianchetto
Moves: 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 a6 6. Be3 e5 7. Nb3 Ne7 8. Rg1
O-O 9. f4 exf4 10. Bd4 Nf5 *
Position (FEN): rnbq1rk1/1p1p1pbp/p5p1/5n2/3BPp2/1NN5/PPP3PP/R2QKBR1 w Q - 2 11
White to move.
Themes:  Opening  
Puzzle rating: 1586
Best move: exf5