Planks

Planks are one of the blockers on the level. Planks are affected by the gravity and can be swapped with other pieces, but only if it results in a match of pieces of the same color. To destroy the planks, match pieces of the same color, use bonuses, boosters, or animals' abilities next to it.
Please note that the rockets destroy only one plank on each side, not the whole row, which is the case with other blockers.