Route read
Build a confirmed route from the inlet
A pipe-rotation board where every joint must contribute to one route from the inlet to the outlet.
A practical first-session plan
Begin at the inlet and mark the only directions that can leave each fixed edge. Build a short confirmed route before touching the busiest center tiles. This reduces the number of uncertain rotations and gives every later choice a connection that can be checked.
Board read
Read the fixed edges first
Find both fixed endpoints, then trace possible directions inward instead of rotating the center at random.
Input to expect
Click or tap a tile to rotate it; use the visible test control when the route looks complete.
Recovery note
Repair the first broken joint
After a failed test, inspect the first broken joint from the inlet and repair outward from there.
Diagnose a stalled run
When the test fails, do not restart by rotating random pieces. Trace from the inlet until the first open seam or mismatched corner appears, repair that joint, and then continue toward the outlet one connection at a time.
Pipe board questions
Plumber Pipe questions
What should I check before the first rotation?
Start from the inlet and note the only directions the edge tiles can take. Lock a short confirmed stretch first, leave the crowded middle for later, and run the visible test only once the path looks whole.
Where does a failed pipe usually break?
Trace from the inlet to the first seam or mismatched corner and rotate that single joint. Rebuild outward one connection at a time instead of restarting the whole board at random.