Since... 1994!

Where is Haroun Al Rashid?

Here is Haroun Al Rashid, standing on one of the 64 squares of the enchanted chess kingdom. However nobody can see him, for the simple reason that he is invisible! On what square does he stand?

(White: K??, Ba4, Black: Kd1, Rb5, Bd5.)

Where is Haroun Al Rashid?

Solution