Dead-end branches go first
A paint-and-route puzzle where each ball's path seals the corridor behind it, so the board changes with every move you make. Most levels are won or lost in the opening order, which makes reading dead-end branches first the habit that matters.
Each path seals the walls that close behind it
Paint every reachable section by guiding each ball along its route before the walls close behind it. A level ends when the required areas are covered and no ball is left trapped without a usable path.
Click, tap or swipe in the direction you want the ball to roll, following the gesture shown at the start of the level. Some boards accept taps on the destination instead, so watch the opening demonstration before your first move.
Look for the branch that a later move would seal off and send a ball down it first. Dead-end corridors are the priority, because once a junction closes behind a passing ball, that branch may be gone for the whole level.
Send the first ball down the one-way branch
The first ball you send decides which corridors stay open, so start where a later move would close things off. A narrow branch is reachable now and easily lost later, and painting it early costs nothing while protecting everything behind it.
Walk the full route in your head first
Before committing, follow the whole path in your head and notice which walls will close behind it. A line that looks useful on the first screen can seal the section you needed next, so tracing the route first prevents the most common dead end.
Watch which side of the ball each pass seals
Corridors disappear behind a passing ball, and which side of the ball they seal is the pattern you want. Once you see that rule in action, you know which branch a later move will cut off and can schedule the paint order around it.
Free a stuck ball by moving another one
If a ball rolls into a corner it cannot leave, look at the other balls before resetting. Moving a different ball first sometimes reopens the wall that trapped it, so try one alternate order and only restart when the board clearly cannot recover.
Treat one failed level as your pattern lesson
Boards tend to follow a consistent rule about which walls close, so a level that goes wrong is still data. Note whether the sealed walls sat beside the ball or ahead of it, and the next level starts with the closing rule already known.
Read the opening demo before the first tap
Each level introduces itself with a demonstration of the gesture it wants, so the first screen is a lesson rather than a countdown. Let that demo finish, check whether it shows a swipe or a destination tap, then choose the first branch with the answer in hand.
Questions about sealed corridors and stuck balls
Why does a corridor vanish after I pass it?
The ball's path seals the walls behind it, so the corridor you just used stops being a route. That is the level's real timer: every move removes options, which is exactly why dead-end branches should be painted before open ones.
What should I do when a ball is stuck in a corner?
Before restarting, try moving another ball first, since an alternate order can reopen the wall that trapped the first one. Only reset when every remaining ball clearly has no usable path, because a fresh start throws away the corridors you already painted.
Why is one square sometimes impossible to paint?
Because its only entry is behind a wall the ball already sealed. Once the single way in closes, that square is cut off for the level, so the workaround is prevention: send a ball into every one-entry pocket before spending moves on the open area.
Where should I stop in the middle of a session?
At level boundaries, since each level starts with its own demonstration and a fresh board. The screen labels levels from Level 1 onward, so stopping after a clear board does not leave a half-sealed route to return to; the next visit begins with a clean setup.
