Chess puzzle (Advantage)
Opening: English_Opening, English_Opening_Carls-Bremen_System
Moves: 1. c4 e5 2. Nc3 Nf6 3. g3 Be7 4. Bg2 O-O 5. e4 d6 6. Nge2 Be6 7. d3 c6 8. O-O
d5 9. f4 Bc5+ 10. Kh1 d4 11. fxe5 dxc3 *
Position (FEN): rn1q1rk1/pp3ppp/2p1bn2/2b1P3/2P1P3/2pP2P1/PP2N1BP/R1BQ1R1K w - - 0 12
White to move.
Themes:  Opening  
Puzzle rating: 1426
Best move: exf6