r1b1k3/1p2p2r/2pp1nPB/p7/1P6/1qNP3P/PbP1K3/1R3BNR w q - 1 24
FEN state: r1b1k3/1p2p2r/2pp1nPB/p7/1P6/1qNP3P/PbP1K3/1R3BNR w q - 1 24 ; Best move: a2b3
The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at e8. Black pawn at b7, black pawn at e7 and black rook at h7. Black pawn at c6, black pawn at d6, black knight at f6, white pawn at g6 and white bishop at h6. Black pawn at a5. White pawn at b4. Black queen at b3, white knight at c3, white pawn at d3 and white pawn at h3. White pawn at a2, black bishop at b2, white pawn at c2 and white king at e2. White rook at b1, 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 1. Full move number is 24. White to move.