Free any ONE piece you tap — no match needed.
Free every piece near where you tap — no match needed.
Tap a stuck piece — it takes the shape of a piece it touches, ready to match.
Re-deal the shapes of every exposed piece. Works instantly.
Tap a piece — drills its column straight down to the core. 2 per board.
Blasts a crater: the center reaches the core, the rings around it dig less. 1 per board.