r2Bk3/p1p2p1r/1pPp2p1/8/2Pq4/N2PPPp1/P3Q2P/2KR1BR1 b q - 0 23
FEN state: r2Bk3/p1p2p1r/1pPp2p1/8/2Pq4/N2PPPp1/P3Q2P/2KR1BR1 b q - 0 23 ; Best move: d4a1
The current state of the chess board is: Black rook at a8, white bishop at d8 and black king at e8. Black pawn at a7, black pawn at c7, black pawn at f7 and black rook at h7. Black pawn at b6, white pawn at c6, black pawn at d6 and black pawn at g6. White pawn at c4 and black queen at d4. White knight at a3, white pawn at d3, white pawn at e3, white pawn at f3 and black pawn at g3. White pawn at a2, white queen at e2 and white pawn at h2. White king at c1, white rook at d1, white bishop at f1 and white rook at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 23. Black to move.