1r2k2r/pbpqppb1/2n4p/Np1P4/1P1PnPpP/B1P2Q2/P4NP1/R3K1R1 b Qk - 0 18
FEN state: 1r2k2r/pbpqppb1/2n4p/Np1P4/1P1PnPpP/B1P2Q2/P4NP1/R3K1R1 b Qk - 0 18 ; Best move: c6a5
The current state of the chess board is: Black rook at b8, black king at e8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at c7, black queen at d7, black pawn at e7, black pawn at f7 and black bishop at g7. Black knight at c6 and black pawn at h6. White knight at a5, black pawn at b5 and white pawn at d5. White pawn at b4, white pawn at d4, black knight at e4, white pawn at f4, black pawn at g4 and white pawn at h4. White bishop at a3, white pawn at c3 and white queen at f3. White pawn at a2, white knight at f2 and white pawn at g2. White rook at a1, white king at e1 and white rook at g1. White queenside and black kingside castles are available. Half move number is 0. Full move number is 18. Black to move.