rnn1k2r/Np1b1p2/2p2q1b/3p2pp/3P1PP1/BP6/P1Q1PKBP/4R1NR b q - 4 17
FEN state: rnn1k2r/Np1b1p2/2p2q1b/3p2pp/3P1PP1/BP6/P1Q1PKBP/4R1NR b q - 4 17 ; Best move: a8a7
The current state of the chess board is: Black rook at a8, black knight at b8, black knight at c8, black king at e8 and black rook at h8. White knight at a7, black pawn at b7, black bishop at d7 and black pawn at f7. Black pawn at c6, black queen at f6 and black bishop at h6. Black pawn at d5, black pawn at g5 and black pawn at h5. White pawn at d4, white pawn at f4 and white pawn at g4. White bishop at a3 and white pawn at b3. White pawn at a2, white queen at c2, white pawn at e2, white king at f2, white bishop at g2 and white pawn at h2. White rook at e1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 4. Full move number is 17. Black to move.