Puzzle Description Suppressed:Click below to view spoilers

#1: Jota (jota) on Dec 25, 2018

Merry Christmas ! They are hard to solve! But I enjoy that!

I finally got it after many false starts. I think I did have to guess but will leave it to the experts to decide if there is a way to solve it logically. Very difficult but satisfying solve. Merry Christmas Aldege

As per usual......an awesome puzzle!!!!! Had lots of fun solving it. Thanks !!!!!

Tough solve, but fun. I did guess several times.

solved. the key is 11 and 7 at the last columns. no quessing needed. really hard, thanks a lot Aldege.

I just can't figure out how to solve these without lookahead. I'd love to know how the solver is doing these with line and color logic only.

solved again.no quess

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