SECTION 1
Plan the pair as a single piece
Connected blocks move together, so map both footprints at once.
Choose lanes that fit the combined shape without trapping a color.
SECTION 2
Aim for a shared clear
Look for one move order that removes both linked colors.
If a shared exit is impossible, pick the order that frees the more blocking piece first.
SECTION 3
Avoid dead lanes
Never separate the colors into lanes where only one can reach an exit.
Keep the partner's path open until the link clears.