Chess puzzle (Advantage)
Opening: Slav_Defense, Slav_Defense_Modern_Line
Moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 Bf5 5. Bg2 e6 6. O-O h6 7. Nc3 dxc4 8. Ne5
Nbd7 9. Nxc4 Nb6 10. Ne5 Nfd7 11. e4 Nxe5 *
Position (FEN): r2qkb1r/pp3pp1/1np1p2p/4nb2/3PP3/2N3P1/PP3PBP/R1BQ1RK1 w kq - 0 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1542
Best move: exf5