r3k3/1npp2pr/b3pp2/1p2q2p/pQ4P1/PPP1PPPR/3P1KB1/RNB3N1 b q - 0 20
FEN state: r3k3/1npp2pr/b3pp2/1p2q2p/pQ4P1/PPP1PPPR/3P1KB1/RNB3N1 b q - 0 20 ; Best move: b7c5
The current state of the chess board is: Black rook at a8 and black king at e8. Black knight at b7, black pawn at c7, black pawn at d7, black pawn at g7 and black rook at h7. Black bishop at a6, black pawn at e6 and black pawn at f6. Black pawn at b5, black queen at e5 and black pawn at h5. Black pawn at a4, white queen at b4 and white pawn at g4. White pawn at a3, white pawn at b3, white pawn at c3, white pawn at e3, white pawn at f3, white pawn at g3 and white rook at h3. White pawn at d2, white king at f2 and white bishop at g2. White rook at a1, white knight at b1, white bishop at c1 and white knight at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 20. Black to move.