r2q3r/pbp1b1pp/4p1kn/1P6/1n4P1/PP1P3P/R4P2/1NB1KbNR w - - 1 17
FEN state: r2q3r/pbp1b1pp/4p1kn/1P6/1n4P1/PP1P3P/R4P2/1NB1KbNR w - - 1 17 ; Best move: a3b4
The current state of the chess board is: Black rook at a8, black queen at d8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at c7, black bishop at e7, black pawn at g7 and black pawn at h7. Black pawn at e6, black king at g6 and black knight at h6. White pawn at b5. Black knight at b4 and white pawn at g4. White pawn at a3, white pawn at b3, white pawn at d3 and white pawn at h3. White rook at a2 and white pawn at f2. White knight at b1, white bishop at c1, white king at e1, black bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 17. White to move.