Error in David Pleacher Puzzle solution
April 28th, 2021 at 10:54:15 PM
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In Ask the Wizard #334 (/ask-the-wizard/334/) there is a puzzle by David Pleacher. The given solution seems to be in error if I am reading the rules correctly.
The rules say “You may not take a path of the same color twice in a row. In other words, at every square you must change to a path of another color.” Yet the given solution has the path 9 to 10 to 1, which is two blue paths in a row. I am not sure if the puzzle is otherwise solvable.
Am I missing something?
The rules say “You may not take a path of the same color twice in a row. In other words, at every square you must change to a path of another color.” Yet the given solution has the path 9 to 10 to 1, which is two blue paths in a row. I am not sure if the puzzle is otherwise solvable.
Am I missing something?
April 28th, 2021 at 11:20:09 PM
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From the math puzzle thread...
Have you tried 22 tonight? I said 22.
April 29th, 2021 at 6:00:59 AM
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Quote: EntenduAm I missing something?
In a way, yes. If you look at the image, the black line has the correct solution. In the written solution, remove everything between 9 and 17, and between 17 and 9.
April 29th, 2021 at 6:04:57 AM
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Quote: EntenduIn Ask the Wizard #334 (/ask-the-wizard/334/) there is a puzzle by David Pleacher. The given solution seems to be in error if I am reading the rules correctly.
You are absolutely right. Thank you for the correction. Here is the corrected puzzle, redrawn by me.
"My life is spent in one long effort to escape from the commonplace of existence. These little problems help me to do so." -- Sherlock Holmes
