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Pipes also known as FreeNet is a logic puzzle with simple rules and challenging solutions.

The goal is to rotate the tiles on the grid so all pipes are connected in a single group.
Closed loops are not allowed.

Click a tile with the mouse to rotate it (Ctrl + Click rotates in the opposite direction). Right click to fix its position.

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4x4 Pipes Puzzle ID: 1,690,380
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4x4 Pipes Puzzle ID: 8,502,331

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