Color Block Jam Failed Move Analysis: Find the Real Error

What changed after the move?

Compare route access, staging space, obstacle state, and the position of the moved block. The failure is usually visible as one lost option, not as the final “stuck” screen.

How do you name the mistake?

Use a concrete statement such as “the yellow move occupied the blue approach lane before the key passed.” A specific dependency is easier to test than “the order felt wrong.”

What should you try next?

Undo to the last good state and change only the identified dependency. If the board is too far gone, restart with that move delayed until its route is safe.