1nb1q1n1/1p1p3r/1b5p/2p1kpp1/r2Np1BP/PP2P3/2PP1PP1/RNBQ1KR1 w - - 2 16
FEN state: 1nb1q1n1/1p1p3r/1b5p/2p1kpp1/r2Np1BP/PP2P3/2PP1PP1/RNBQ1KR1 w - - 2 16 ; Best move: d4f5
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at e8 and black knight at g8. Black pawn at b7, black pawn at d7 and black rook at h7. Black bishop at b6 and black pawn at h6. Black pawn at c5, black king at e5, black pawn at f5 and black pawn at g5. Black rook at a4, white knight at d4, black pawn at e4, white bishop at g4 and white pawn at h4. White pawn at a3, white pawn at b3 and white pawn at e3. White pawn at c2, white pawn at d2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 16. White to move.