r1bB1k1r/3nnpb1/1pp1p1p1/p2p3p/4P3/N1PPQ1PP/PP3P2/3RKBNR w K - 4 16
FEN state: r1bB1k1r/3nnpb1/1pp1p1p1/p2p3p/4P3/N1PPQ1PP/PP3P2/3RKBNR w K - 4 16 ; Best move: d8e7
The current state of the chess board is: Black rook at a8, black bishop at c8, white bishop at d8, black king at f8 and black rook at h8. Black knight at d7, black knight at e7, black pawn at f7 and black bishop at g7. Black pawn at b6, black pawn at c6, black pawn at e6 and black pawn at g6. Black pawn at a5, black pawn at d5 and black pawn at h5. White pawn at e4. White knight at a3, white pawn at c3, white pawn at d3, white queen at e3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at b2 and white pawn at f2. White rook at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 4. Full move number is 16. White to move.