r1bqkbnr/1pp3p1/2nBpp2/p6p/Q1pPP1PP/2N5/PP1K1P2/R4BNR b k - 2 13
FEN state: r1bqkbnr/1pp3p1/2nBpp2/p6p/Q1pPP1PP/2N5/PP1K1P2/R4BNR b k - 2 13 ; Best move: f8d6
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7 and black pawn at g7. Black knight at c6, white bishop at d6, black pawn at e6 and black pawn at f6. Black pawn at a5 and black pawn at h5. White queen at a4, black pawn at c4, white pawn at d4, white pawn at e4, white pawn at g4 and white pawn at h4. White knight at c3. White pawn at a2, white pawn at b2, white king at d2 and white pawn at f2. White rook at a1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 2. Full move number is 13. Black to move.