Connect every colour across the grid, and where two pipes meet, send yours diving underneath in a clean over-under weave.
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How to play
Each board has pairs of matching colored dots. Drag a path from one dot to its partner so every colour is linked. The twist is depth: paths may cross, and when they do, the pipe you draw tucks under the one already there, letting you knot routes together on two layers.
Trace from a dot through adjacent cells to its matching dot to complete that colour.
Cross an existing pipe and yours automatically dives one layer under it.
Connect every colour to solve the board; fewer moves scores higher.
Tap any laid pipe to clear that colour and reroute it.
Controls
Desktop: click and drag from a dot to draw its path; tap a pipe to clear it; use the Clear button to reset the board and the speaker icon to mute.
Phone & tablet: drag your finger from a dot to its match; tap a pipe to clear it, fully touch-friendly.
Game modes
Daily: one shared puzzle each day, separately ranked.
Levels: a hand-built pack of boards that grow in size and colour count.
Tips & strategy
Run border colours along the edges first to free up the crowded middle.
Plan your crossings, a deliberate dive can untangle a board that looks blocked.
Shorter, tidier routes mean fewer moves and a better score.
About Knot Flow
Knot Flow is an original free browser game that reinvents the flow-connection / pipe-linking puzzle genre with a second layer, so crossing paths weave over and under instead of blocking. Built in-house for PlayPendium with a daily board and a progressing level pack.
A free, original browser game on PlayPendium. No download, no install.
