How about an explanation of the rule set? At first I thought it might be an implementation of sth like ARDF ("radio fox hunting") but this ain't it (or if it is, it's waaay abstract). I have no clue what I'm supposed to do.

“Fox hunting” is a variant of cross-country orienteering, especially popular in the Soviet Union, but also known in other countries. It is necessary to discover 5 hidden transmitters located on a 10 × 10 field in as few moves as possible. The transmitters broadcast in all 8 directions, the number on the cell indicates the number of intersecting signals. Input is carried out using coordinates on the keyboard.