When Should You Restart a Color Block Jam Level?

Four clear restart signals

Restart when a key lane has no escape, a stopper was removed too soon, the center has no open staging space, or you repeat the same two or three moves without reducing dependencies. These signals are more useful than waiting until the timer is almost empty.

What should change on the next attempt?

Change one variable: move a different blocker first, delay a color group, preserve the center lane, or process the countdown object earlier. Keeping the change small lets you learn what caused the lock.

When is the video the problem?

If your opening board or first checkpoint differs from the source, restarting the game will not fix the evidence mismatch. Check Why Your Level Does Not Match the Video.