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Cat's-Eye View is a puzzle in Professor Layton and the Unwound Future. The puzzle must be solved in order to progress the story.

Puzzle

US Version

Place cat's-eye stones in the round spots below. The only rule is that no four stones can form a square or rectangle either horizontally or vertically.

Tap the icon in the upper-left corner to view examples of how to arrange your stones.

There are 16 spots in this puzzle. What is the maximum number of stones you can place while following the above rule? Submit that number as your answer.

UK Version

Place cat's-eye stones into the round slots below. The only rule is that no four stones can form a square or rectangle, either horizontally or vertically.

Touch the icon in the top-left corner to view examples of how to arrange the stones.

There are 16 slots in this puzzle. What is the maximum number of stones you can place while following the above rule? Input that number as your answer.

Hints




Click a Tab to reveal the Hint.

At first, just try placing stones while following the rule until you can't place any more. If you repeat this process over and over, the answer should start to reveal itself.

It's probably obvious, but the answer isn't 16. What about 15 or 14? Nope. You can cross those off your list too.

The answer is a multiple of three.

The answer is not a two-digit number. You're so close now. You can do it!


Solution

Incorrect

Too bad!

It should go without saying, but the answer is fewer than 16.

Correct

Terrific!

US Version

No matter how you arrange the stones, the most you can place without breaking the rule is nine. The diagram above shows just one example. The difficult part is having confidence that you've found the correct answer!

UK Version

No matter how you arrange the stones, the most you can place without breaking the rule is nine. This diagram shows just one example. The difficult part is being confident that you've found the correct answer!

UF123S

A big thanks to http://professorlayton3walkthrough.blogspot.com

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