r1b1k1nr/pp2bp2/n2p2p1/2q1p2p/1PB5/B1P1P1QN/P2N1PPP/R3K2R b KQkq - 2 16
FEN state: r1b1k1nr/pp2bp2/n2p2p1/2q1p2p/1PB5/B1P1P1QN/P2N1PPP/R3K2R b KQkq - 2 16 ; Best move: c5b6
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black bishop at e7 and black pawn at f7. Black knight at a6, black pawn at d6 and black pawn at g6. Black queen at c5, black pawn at e5 and black pawn at h5. White pawn at b4 and white bishop at c4. White bishop at a3, white pawn at c3, white pawn at e3, white queen at g3 and white knight at h3. White pawn at a2, white knight at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white king at e1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 2. Full move number is 16. Black to move.