rn1q2n1/1ppb1kp1/1r6/p2p1p2/PB4p1/1P3P1N/R1PPP2P/1N1QKB1R b K - 2 13
FEN state: rn1q2n1/1ppb1kp1/1r6/p2p1p2/PB4p1/1P3P1N/R1PPP2P/1N1QKB1R b K - 2 13 ; Best move: d8h4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8 and black knight at g8. Black pawn at b7, black pawn at c7, black bishop at d7, black king at f7 and black pawn at g7. Black rook at b6. Black pawn at a5, black pawn at d5 and black pawn at f5. White pawn at a4, white bishop at b4 and black pawn at g4. White pawn at b3, white pawn at f3 and white knight at h3. White rook at a2, white pawn at c2, white pawn at d2, white pawn at e2 and white pawn at h2. White knight at b1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 2. Full move number is 13. Black to move.