2b1k2r/3q1pb1/r1pppn2/pp5p/P1P1PP1N/R2Q2P1/1P3K1P/1NB2B1R b k - 0 18
FEN state: 2b1k2r/3q1pb1/r1pppn2/pp5p/P1P1PP1N/R2Q2P1/1P3K1P/1NB2B1R b k - 0 18 ; Best move: b5c4
The current state of the chess board is: Black bishop at c8, black king at e8 and black rook at h8. Black queen at d7, black pawn at f7 and black bishop at g7. Black rook at a6, black pawn at c6, black pawn at d6, black pawn at e6 and black knight at f6. Black pawn at a5, black pawn at b5 and black pawn at h5. White pawn at a4, white pawn at c4, white pawn at e4, white pawn at f4 and white knight at h4. White rook at a3, white queen at d3 and white pawn at g3. White pawn at b2, white king at f2 and white pawn at h2. White knight at b1, white bishop at c1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 18. Black to move.