Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Colle_System
Moves: 1. d4 d5 2. Nf3 c5 3. c3 e6 4. e3 Nf6 5. Bd3 b6 6. Nbd2 cxd4 7. cxd4 Bd6 8. O-O
O-O 9. e4 Nxe4 *
Position (FEN): rnbq1rk1/p4ppp/1p1bp3/3p4/3Pn3/3B1N2/PP1N1PPP/R1BQ1RK1 w - - 0 10
White to move.
Themes:  Opening  
Puzzle rating: 1704
Best move: Nxe4