rn1nkb2/p1q1p1p1/3p3r/1p1b3p/1P3p2/P2P3P/2PKPNP1/RQB2BNR b q - 5 24
FEN state: rn1nkb2/p1q1p1p1/3p3r/1p1b3p/1P3p2/P2P3P/2PKPNP1/RQB2BNR b q - 5 24 ; Best move: b8d7
The current state of the chess board is: Black rook at a8, black knight at b8, black knight at d8, black king at e8 and black bishop at f8. Black pawn at a7, black queen at c7, black pawn at e7 and black pawn at g7. Black pawn at d6 and black rook at h6. Black pawn at b5, black bishop at d5 and black pawn at h5. White pawn at b4 and black pawn at f4. White pawn at a3, white pawn at d3 and white pawn at h3. White pawn at c2, white king at d2, white pawn at e2, white knight at f2 and white pawn at g2. White rook at a1, white queen at b1, white bishop at c1, white bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 5. Full move number is 24. Black to move.