Very "effen" cool! Kind of makes me think of my roomba vacuum lol. I was wondering about the effectiveness of a "random" move as well. Also, for example, if you have a wall at center and east, how can you have anything to the north? Are there more rules that cant happen?

I added this for a graphical representation of the Decipher Rules Results (@rules table), made it easier to follow the rules...(oh yeah, you have to view in results to text 😉 )

declare @crlf char(2)

set @crlf = char(13) + char(10)

select ' ' +

case n

when 0 then ' O '

when 1 then ' X '

when 2 then '!!!'

end

+ ' ' + @crlf +

case w

when 0 then ' O '

when 1 then ' X '

when 2 then '!!!'

end

+

case c

when 0 then ' O '

when 1 then ' X '

when 2 then '!!!'

end

+

case e

when 0 then ' O '

when 1 then ' X '

when 2 then '!!!'

end

+ ' = ' +

case a

when 0 then 'Go North'

when 1 then 'Go South'

when 2 then 'Go East'

when 3 then 'Go West'

when 4 then 'Pick up'

when 5 then 'Move Random'

end

+ @crlf + ' ' +

case s

when 0 then ' O '

when 1 then ' X '

when 2 then ' _ '

end

+ ' ' + @crlf + '-----------------------' + @crlf

from @rules

order by n, w, c, e, s, a