Chess puzzle (Advantage)
Opening: Nimzo-Larsen_Attack, Nimzo-Larsen_Attack_Graz_Attack
Moves: 1. b3 d5 2. Ba3 g6 3. Qc1 Bg7 4. Bb2 Nf6 5. h4 O-O 6. Bc3 d4 7. Bb2 e5 8. e3
Ng4 9. f3 dxe3 *
Position (FEN): rnbq1rk1/ppp2pbp/6p1/4p3/6nP/1P2pP2/PBPP2P1/RNQ1KBNR w KQ - 0 10
White to move.
Themes:  Opening  
Puzzle rating: 1515
Best move: fxg4