rnq1kbr1/p1p1p1pp/bp1p1p1n/8/3PPPPN/P5QP/1P5R/RNB2BK1 b q - 2 16
FEN state: rnq1kbr1/p1p1p1pp/bp1p1p1n/8/3PPPPN/P5QP/1P5R/RNB2BK1 b q - 2 16 ; Best move: a6f1
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at e7, black pawn at g7 and black pawn at h7. Black bishop at a6, black pawn at b6, black pawn at d6, black pawn at f6 and black knight at h6. White pawn at d4, white pawn at e4, white pawn at f4, white pawn at g4 and white knight at h4. White pawn at a3, white queen at g3 and white pawn at h3. White pawn at b2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1 and white king at g1. Black queenside is the only castle move available. Half move number is 2. Full move number is 16. Black to move.