start

too easy

Done

woo hoo... no greens.

go... no greens

done

woot!

Very simple, just cross-hatching, no greens....

cross contain through the double matrix while ignoring the false hidden pairs, and it's easy

Difficulty score 14. Very easy.

start

done no greens

go

go

done. no greens.

oh yeah - done...no greens...took awhile because one of my kittens insisted on playing fetch for a while! :P

done easy no greens

go

done, no green

easiest one i've seen so far ... over a month and a half period...