Chess puzzle (Advantage)
Opening: Lion_Defense, Lion_Defense_Anti-Philidor
Moves: 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. dxe5 dxe5 6. fxe5 Nxe5 7. Qxd8+ Kxd8
8. Bf4 Bd6 9. O-O-O Ke7 10. Nf3 Neg4 *
Position (FEN): r1b4r/ppp1kppp/3b1n2/8/4PBn1/2N2N2/PPP3PP/2KR1B1R w - - 6 11
White to move.
Themes:  Middlegame  
Puzzle rating: 1940
Best move: e5