Rotate every tile so the pipes form one connected network — with no closed loops.
Classic grid
6 × 6
Daily reset
Midnight UK
0 Networks solved
0 Games played
0 Daily streak
Daily board
Same network for everyoneNew board at midnight UK
Current streak0
Best streak0
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Achievements & Badges
Don't lose your streak
Play today's daily challenge to keep it going.
Grid6×6
Classic
Turns0
Time0:00
Tap a tile to rotate it. Join every pipe into one network with no loops.
Right-click or use Lock to fix a tile. Ctrl+click rotates the other way. The network must be connected and loop-free.
Result
0:00Time
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EasySize
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How to play
Objective
Each square is a pipe tile. Rotate the tiles until every pipe joins into one connected network. Closed loops are not allowed — the finished network is a spanning tree.
Rules
A tile’s shape is fixed. You only change its rotation.
Two tiles join only when both openings face each other.
The board is solved when all tiles belong to one connected group and there are no loops.
Every practice and daily board is generated from a spanning tree, so it can always be solved.
Controls
Tap or click a tile to rotate it clockwise.
Ctrl+click rotates the other way.
Right-click, L, or the Lock button fixes a tile so it will not turn.
Arrow keys move the cursor. Space or Enter rotates. H hints, U undoes.
Difficulty
Easy: 4×4
Classic: 6×6
Hard: 8×8
Daily challenge
Everyone receives the same seeded board. It resets at midnight UK. The first solve of the day counts for the league and your streak.
Statistics
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Best time
By size
Settings
Practice size
Practice Game uses this size. The daily puzzle rotates through 5×5, 6×6 and 7×7.