rn1qk1r1/p2p2bp/bp2Bp2/3np1p1/2pPPP1P/PP4P1/2P5/R1BQK1NR b Q - 0 16
FEN state: rn1qk1r1/p2p2bp/bp2Bp2/3np1p1/2pPPP1P/PP4P1/2P5/R1BQK1NR b Q - 0 16 ; Best move: d7e6
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8 and black rook at g8. Black pawn at a7, black pawn at d7, black bishop at g7 and black pawn at h7. Black bishop at a6, black pawn at b6, white bishop at e6 and black pawn at f6. Black knight at d5, black pawn at e5 and black pawn at g5. Black pawn at c4, white pawn at d4, white pawn at e4, white pawn at f4 and white pawn at h4. White pawn at a3, white pawn at b3 and white pawn at g3. White pawn at c2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White queenside is the only castle move available. Half move number is 0. Full move number is 16. Black to move.