Chess puzzle (Advantage)
Opening: English_Opening, English_Opening_Kings_English_Variation
Moves: 1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 Nf6 5. e3 O-O 6. Nge2 d6 7. O-O Bg4 8. h3
Bh5 9. g4 Nxg4 10. hxg4 Bxg4 11. Ne4 f5 12. N4g3 *
Position (FEN): r2q1rk1/ppp3pp/2np4/2b1pp2/2P3b1/4P1N1/PP1PNPB1/R1BQ1RK1 b - - 1 12
Black to move.
Themes:  Opening  
Puzzle rating: 1569
Best move: f4