Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Italian_Variation
Moves: 1. e4 e5 2. Nf3 Nf6 3. Bc4 Bc5 4. d3 O-O 5. Bg5 h6 6. Bh4 g5 7. Bg3 Nh5 8. Bxe5
Kh7 9. Bd4 Bxd4 10. Nxd4 Nf4 11. Qf3 d5 12. exd5 Bg4 13. Qe4+ *
Position (FEN): rn1q1r2/ppp2p1k/7p/3P2p1/2BNQnb1/3P4/PPP2PPP/RN2K2R b KQ - 2 13
Black to move.
Themes: Defensive Move Opening  
Puzzle rating: 1423
Best move: f5