r1bnkbr1/p7/p4p1p/1qPppPpP/2P3P1/P2KQ3/1P6/RN2B1NR b q - 0 23
FEN state: r1bnkbr1/p7/p4p1p/1qPppPpP/2P3P1/P2KQ3/1P6/RN2B1NR b q - 0 23 ; Best move: b5c4
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at d8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7. Black pawn at a6, black pawn at f6 and black pawn at h6. Black queen at b5, white pawn at c5, black pawn at d5, black pawn at e5, white pawn at f5, black pawn at g5 and white pawn at h5. White pawn at c4 and white pawn at g4. White pawn at a3, white king at d3 and white queen at e3. White pawn at b2. White rook at a1, white knight at b1, white bishop at e1, white knight at g1 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.