rn2kb2/8/2p1bPpr/pp1pp1Pp/3q4/PPP2n1P/1B1PK2N/RN3B1R b q - 0 23
FEN state: rn2kb2/8/2p1bPpr/pp1pp1Pp/3q4/PPP2n1P/1B1PK2N/RN3B1R b q - 0 23 ; Best move: d4e4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black bishop at f8. Black pawn at c6, black bishop at e6, white pawn at f6, black pawn at g6 and black rook at h6. Black pawn at a5, black pawn at b5, black pawn at d5, black pawn at e5, white pawn at g5 and black pawn at h5. Black queen at d4. White pawn at a3, white pawn at b3, white pawn at c3, black knight at f3 and white pawn at h3. White bishop at b2, white pawn at d2, white king at e2 and white knight at h2. White rook at a1, white knight at b1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 23. Black to move.