Chess puzzle (Advantage)
Opening: Kings_Pawn_Game, Kings_Pawn_Game_Kings_Head_Opening
Moves: 1. e4 e5 2. f3 Nc6 3. f4 d6 4. Nf3 Nf6 5. Nc3 Be7 6. Bc4 O-O 7. O-O Be6 8. Bxe6
fxe6 9. fxe5 dxe5 10. d3 Bc5+ 11. Kh1 Ng4 12. Qe2 *
Position (FEN): r2q1rk1/ppp3pp/2n1p3/2b1p3/4P1n1/2NP1N2/PPP1Q1PP/R1B2R1K b - - 4 12
Black to move.
Themes:  Opening  
Puzzle rating: 1927
Best move: Nd4