r2q1rk1/1p1nbppp/2nN4/p1pBpQ2/1P1P3P/4P3/P1P2PP1/1RB1K1NR b K - 1 13
FEN state: r2q1rk1/1p1nbppp/2nN4/p1pBpQ2/1P1P3P/4P3/P1P2PP1/1RB1K1NR b K - 1 13 ; Best move: e7d6
The current state of the chess board is: Black rook at a8, black queen at d8, black rook at f8 and black king at g8. Black pawn at b7, black knight at d7, black bishop at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at c6 and white knight at d6. Black pawn at a5, black pawn at c5, white bishop at d5, black pawn at e5 and white queen at f5. White pawn at b4, white pawn at d4 and white pawn at h4. White pawn at e3. White pawn at a2, white pawn at c2, white pawn at f2 and white pawn at g2. White rook at b1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 1. Full move number is 13. Black to move.