Chess puzzle (Advantage)
Opening: Slav_Defense, Slav_Defense_Quiet_Variation
Moves: 1. d4 Nf6 2. Nf3 d5 3. e3 Bf5 4. c4 c6 5. Nc3 e6 6. a3 dxc4 7. Bxc4 Be7 8. Bd3
Bg6 9. e4 Nbd7 10. O-O O-O 11. Nh4 Nxe4 *
Position (FEN): r2q1rk1/pp1nbppp/2p1p1b1/8/3Pn2N/P1NB4/1P3PPP/R1BQ1RK1 w - - 0 12
White to move.
Themes:  Opening  
Puzzle rating: 1420
Best move: Nxg6