Hmm, ticks along nicely and then discover you've done the impossible. Restarted twice so far...

Done, 7 guesses

another restart. Resorting to greens.

another restart. Leaving this puzzle alone for a few hours.

apparently had 1 lucky guess

g/g/g/g

Start,

Morning. Go.

done

Completed. NG. EZPZ.

Done

go

At last. Done.