r1b1k1nr/Npqp1p2/B3p1p1/2bp3p/P3P3/1P4P1/2PB1P1P/R1Q1K1NR b KQ - 1 16
FEN state: r1b1k1nr/Npqp1p2/B3p1p1/2bp3p/P3P3/1P4P1/2PB1P1P/R1Q1K1NR b KQ - 1 16 ; Best move: b7a6
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. White knight at a7, black pawn at b7, black queen at c7, black pawn at d7 and black pawn at f7. White bishop at a6, black pawn at e6 and black pawn at g6. Black bishop at c5, black pawn at d5 and black pawn at h5. White pawn at a4 and white pawn at e4. White pawn at b3 and white pawn at g3. White pawn at c2, white bishop at d2, white pawn at f2 and white pawn at h2. White rook at a1, white queen at c1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 1. Full move number is 16. Black to move.