Thermal Courtesy

Sealed Service Lane blocks the northeast delivery approach. Cooling remains permanent, but the second crate needs a longer reroute; a solver verified a 36-move delivery after the original southwest-block proposal proved impossible.

Hot crates cannot be pushed until cooled by adjacency to a cold crate. Cooling is permanent. Arrange coolant then push both onto their marked destinations.

Tap or click the controls. Keyboard: Tab and Enter/Space operate every button; arrows/WASD move where available, R restarts, Z undoes calm puzzles.

Mistakes remain revisable. Unlimited undo and restart recover deadlocks.