description Loopy Overview
Loopy is a loop-drawing logic puzzle, included in Simon Tatham's Portable Puzzle Collection, where players draw a single closed loop through grid dots using clues about how many loop segments border each cell.
insights Ranking position
Loopy ranks #16 of 93 in the Logic Puzzle ranking, behind Arrow Sudoku, ahead of Monty Hall Problem.
help Loopy FAQ
How do you play the Loopy puzzle in Simon Tatham's Portable Puzzle Collection?
In Loopy, you draw a single continuous closed loop along the edges of a grid without crossing over or branching. Number clues inside the cells indicate exactly how many sides of that cell form part of the loop.
Is Loopy the same as Slitherlink?
Yes, Loopy is the name given to Slitherlink (also known as Fences or Loop the Loop) within Simon Tatham's Portable Puzzle Collection. The rules are identical to the classic Slitherlink puzzles published by Nikoli.
Can I play Loopy on my mobile phone?
Yes, you can play Loopy on mobile devices through the Simon Tatham's Portable Puzzle Collection app, available on Android. It is also available on desktop operating systems like Windows, macOS, and Linux.
What do the numbers mean in a Loopy puzzle?
The numbers in a Loopy puzzle tell you exactly how many of that specific cell's four edges must be part of the completed loop. For example, a '0' means none of the cell's edges can be part of the loop, while a '3' means exactly three edges must be included.
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