r2q1br1/3k2pp/np1p1n2/3pPp2/3P2P1/2PbQ2P/P2BPK2/R4BNR b - - 5 16
FEN state: r2q1br1/3k2pp/np1p1n2/3pPp2/3P2P1/2PbQ2P/P2BPK2/R4BNR b - - 5 16 ; Best move: f6e4
The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8 and black rook at g8. Black king at d7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at b6, black pawn at d6 and black knight at f6. Black pawn at d5, white pawn at e5 and black pawn at f5. White pawn at d4 and white pawn at g4. White pawn at c3, black bishop at d3, white queen at e3 and white pawn at h3. White pawn at a2, white bishop at d2, white pawn at e2 and white king at f2. White rook at a1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 16. Black to move.