Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Perseus_Gambit
Moves: 1. e4 e6 2. Nf3 d5 3. d4 dxe4 4. Nfd2 f5 5. Nc3 Nc6 6. Bc4 Nxd4 7. O-O g6 8.
Nb3 Nxb3 9. Bxb3 Qxd1 10. Rxd1 Bd7 11. Bf4 O-O-O *
Position (FEN): 2kr1bnr/pppb3p/4p1p1/5p2/4pB2/1BN5/PPP2PPP/R2R2K1 w - - 3 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1766
Best move: Be5