rn2kbnr/5p2/B3p3/4p1pp/1B1p3P/PP4Pb/2PKNP1R/R5Q1 b k - 1 18
FEN state: rn2kbnr/5p2/B3p3/4p1pp/1B1p3P/PP4Pb/2PKNP1R/R5Q1 b k - 1 18 ; Best move: a8a6
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at f7. White bishop at a6 and black pawn at e6. Black pawn at e5, black pawn at g5 and black pawn at h5. White bishop at b4, black pawn at d4 and white pawn at h4. White pawn at a3, white pawn at b3, white pawn at g3 and black bishop at h3. White pawn at c2, white king at d2, white knight at e2, white pawn at f2 and white rook at h2. White rook at a1 and white queen at g1. Black kingside is the only castle move available. Half move number is 1. Full move number is 18. Black to move.