rn1qkb2/1ppb1ppr/8/p3pp2/QP6/2P2B1N/PB1P3P/RN2K1R1 b Q - 1 21
FEN state: rn1qkb2/1ppb1ppr/8/p3pp2/QP6/2P2B1N/PB1P3P/RN2K1R1 b Q - 1 21 ; Best move: d7a4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at b7, black pawn at c7, black bishop at d7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at a5, black pawn at e5 and black pawn at f5. White queen at a4 and white pawn at b4. White pawn at c3, white bishop at f3 and white knight at h3. White pawn at a2, white bishop at b2, white pawn at d2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1 and white rook at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 21. Black to move.