Chess puzzle (Advantage)
Opening: Bird_Opening, Bird_Opening_Dutch_Variation
Moves: 1. f4 d5 2. Nf3 c5 3. Nc3 Nc6 4. e3 d4 5. Ne4 Qd5 6. d3 Nf6 7. c4 Qh5 8. Ng3
Qh6 9. exd4 Nxd4 10. Nxd4 cxd4 11. Be2 e6 12. O-O Bd6 13. c5 Bxc5 *
Position (FEN): r1b1k2r/pp3ppp/4pn1q/2b5/3p1P2/3P2N1/PP2B1PP/R1BQ1RK1 w kq - 0 14
White to move.
Themes:  Opening  
Puzzle rating: 1643
Best move: f5