r2bk1r1/pBp5/n3p3/1P2n2p/4P1pq/8/PPNPNPPP/1RB1K1R1 w q - 1 24
FEN state: r2bk1r1/pBp5/n3p3/1P2n2p/4P1pq/8/PPNPNPPP/1RB1K1R1 w q - 1 24 ; Best move: b7a8
The current state of the chess board is: Black rook at a8, black bishop at d8, black king at e8 and black rook at g8. Black pawn at a7, white bishop at b7 and black pawn at c7. Black knight at a6 and black pawn at e6. White pawn at b5, black knight at e5 and black pawn at h5. White pawn at e4, black pawn at g4 and black queen at h4. White pawn at a2, white pawn at b2, white knight at c2, white pawn at d2, white knight at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at b1, white bishop at c1, white king at e1 and white rook at g1. Black queenside is the only castle move available. Half move number is 1. Full move number is 24. White to move.