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Comments on Puzzle #7279: Would you help me...
By Brian Bellis (mootpoint)

peek at solution       solve puzzle
  quality:   difficulty:   solvability: moderate lookahead  

Puzzle Description:

...hold up this wall?

#1: Leigh Cousins (pog) on Dec 1, 2009 [SPOILER]

The body's doable but the legs are more or less entirely guesswork.
#2: Jakub Wolczaski (Wolek7000) on Dec 1, 2009
You're wrong, this is totally solvable without guessing necessary.
#3: Nother (npiller) on Dec 1, 2009
Solved without any guessing.
#4: Gator (Gator) on Dec 1, 2009 [HINT]
I was able to solve this one, but I had to look two moves ahead to do so. It wasn't that hard to keep in my head through, so I'm going to call this one solvable for now. Jan, please let me know if you think otherwise.
#5: Web Paint-By-Number Robot (webpbn) on Dec 1, 2009
Found to be logically solvable by Gator.
#6: Adam Nielson (monkeyboy) on Dec 1, 2009
You can place all but 3 of the reds and you can place 4 blues with plain line/color logic. Then, like gator said, by looking a few moves ahead lets you finish it. It borders on guessing.
#7: Teresa K (fasstar) on Dec 5, 2009 [HINT]
Good puzzle, Brian. No guessing required. It was apparent that the blues were zigzags and I could easily tell where the zigzag starts and ends by looking at the clues.
#8: Fran (rmm) on Dec 16, 2009
Very neat wall fun :)
#9: Joe (infrapinklizzard) on Mar 16, 2011 [HINT] [SPOILER]
For the life of me, I cannot find a two-move lookahead. The 3 in r10 allows no edge logic whatever. The 4 in c10 likewise. Same with the 5 in r11...

The only thing I saw (and Gator's going to hate this) is the fact that there are two different ways to finish the red. (Red blobs and squares in both pictures.)
http://postimage.org/image/a4x44vk4/

Since we know (even though it's not part of the clues) that this puzzle has a unique solution, one of those two configurations of red must be blocked. The only clue that can do that is the blue 3 in r10. (Blue line in right picture.)

Then it solves with line logic.
#10: Gator (Gator) on Mar 17, 2011 [HINT]
I definitely should have been more clear on this one.

We are going to start on the left with the 5 blue clue in row 11. We are going to look two moves ahead to see how rows 15-17 are affected.

When R11C1-R11C5 are blue, then (looking two moves ahead - look at all those dots!) R15C7-R17C7 would have to be blue. So R11C1 is a dot.

When R11C2-R11C6 are blue, then we will see it is impossible to finish row 16 when looking two moves ahead. So R11C2 is a dot. Then some line logic.

Looking at the possible places to put the 3 clue in row 10, R11C6 will always be blue. Line logic to finish.

Goto next topic

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