g/g/g no system, just guesses

go

done... challenging

go

Hmmm. On my 4th try. Can't see where I am going wrong as no guesses yet, but I get to about half way through and find it's all gone wring...

Finally....done! Whew!

Hmm...difficult in that there is no unique unspecified sub-strata formulation allowing the 7 to eliminate its alternate configurations. But...we persevere.

Difficulty score 63.

Don't overexert yourself, Angie.

Done.

go

done

Did it, no green, one nap, a tree search two deep, the third guess lucky.