Sudoku
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Shikaku
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Arrow Exit
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Drop Merge
2048
Pipes
Tap the tiles to rotate them and join every pipe into a single network. Water flows from the source through everything that is connected — fill the whole board to win.
5×5 grid — a quick warm-up.
7×7 grid with more junctions.
9×9 grid with long branches.
PlayHow to play Pipes →Free online pipe puzzle
Pipes (also known as Net or FreeNet) is a logic puzzle: every tile holds a piece of pipe — a straight, a bend, a T-junction or an end — and your only move is to rotate it. Every level on PuzzleWorld is generated as a single network, so there is always a way to connect it all.
Start at the edges and corners: pipes can never point out of the board. End pieces next to each other can never face each other, and straight pieces on the border must run along it. Water shows which part is already connected to the source.