Chess puzzle (Advantage)
Opening: Four_Knights_Game, Four_Knights_Game_Italian_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bb4 5. O-O d6 6. Ng5 O-O 7. a3 Bxc3 8.
bxc3 h6 9. Nf3 Nxe4 10. Re1 Nf6 11. d4 e4 12. Nd2 d5 13. Ba2 Bg4 14. f3 Bh5 15.
g4 Bg6 16. f4 Qd6 17. f5 Bh7 18. c4 Nxd4 19. cxd5 Nxd5 *
Position (FEN): r4rk1/ppp2ppb/3q3p/3n1P2/3np1P1/P7/B1PN3P/R1BQR1K1 w - - 0 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1069
Best move: Nxe4