Puzzle Description Suppressed:Click below to view spoilers

#1: Web Paint-By-Number Robot (webpbn) on Feb 12, 2010

New version published by maceraseven.

it is completely solvable by logic alone if you see the symmetry

Comment Suppressed:Click below to view hints

what do you mean?

Jan will tell you what I mean.

if you mean that solving a puzzle by using symmetry is not considered logical, then why is it in solving techniques?

OK, since Jan is not here yet, I will try and explain what he usually says (but it won't do him justice, since he says it so much better).

Symmetry can only (or SHOULD only) be applied when you know the puzzle has a unique solution. He has posted sample puzzles with clues that appear symmetrical, but the puzzle is not symmetrical.

He can explain more about this once he reads these comments, if he chooses.

good image

I found this doable without guessing, actually. I may have just gotten lucky with a square I inadvertently marked that shouldn't have been marked, and actually caught a couple of squares I then reversed and continued from without considering the previous markings, and solved with moderate lookahead. I did use some two-way logic and some edge logic. Symmetry was never assumed. Even in the eyes edge logic solves.

Would love to see an admin. check into this. In such a case, if an admin. checks and gets stuck, I can try to assist.

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