2r1k2r/2p4p/np2b1pn/1P2p3/2PbppPq/3N1P2/PQ1P1R1P/RNB1K3 b Qk - 1 20
FEN state: 2r1k2r/2p4p/np2b1pn/1P2p3/2PbppPq/3N1P2/PQ1P1R1P/RNB1K3 b Qk - 1 20 ; Best move: a6c5
The current state of the chess board is: Black rook at c8, black king at e8 and black rook at h8. Black pawn at c7 and black pawn at h7. Black knight at a6, black pawn at b6, black bishop at e6, black pawn at g6 and black knight at h6. White pawn at b5 and black pawn at e5. White pawn at c4, black bishop at d4, black pawn at e4, black pawn at f4, white pawn at g4 and black queen at h4. White knight at d3 and white pawn at f3. White pawn at a2, white queen at b2, white pawn at d2, white rook at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1 and white king at e1. White queenside and black kingside castles are available. Half move number is 1. Full move number is 20. Black to move.