r2q2n1/1bppkpb1/n2r2p1/p1PPp3/1p2P1B1/1P5P/PK3PP1/RN4NR b - - 0 16
FEN state: r2q2n1/1bppkpb1/n2r2p1/p1PPp3/1p2P1B1/1P5P/PK3PP1/RN4NR b - - 0 16 ; Best move: a6c5
The current state of the chess board is: Black rook at a8, black queen at d8 and black knight at g8. Black bishop at b7, black pawn at c7, black pawn at d7, black king at e7, black pawn at f7 and black bishop at g7. Black knight at a6, black rook at d6 and black pawn at g6. Black pawn at a5, white pawn at c5, white pawn at d5 and black pawn at e5. Black pawn at b4, white pawn at e4 and white bishop at g4. White pawn at b3 and white pawn at h3. White pawn at a2, white king at b2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 16. Black to move.