user21337: I know in StockFish if you type "d" you get an ascii view of the board and a FEN string for the current state. Is there any command in other UCI engines such as Rybka 4 that will output a FEN string?

user9684: From reading various chess source codes, mostly before 2005, I can state that most don't a FEN output.  Any that would allow for a non-starting position should accept FEN, as it's just a special form of PGN.
Crafty and san_kit both have a "fen" command.

21337: <p>I know in StockFish if you type &quot;d&quot; you get an ascii view of the board and a FEN string for the current state. Is there any command in other UCI engines such as Rybka 4 that will output a FEN string?</p>
 9684: <p>From reading various chess source codes, mostly before 2005, I can state that most don't a FEN output.  Any that would allow for a non-starting position should accept FEN, as it's just a special form of PGN.
Crafty and san_kit both have a &quot;fen&quot; command.</p>
