The Match Stack is a unique type of column that can only hold blocks of a single, specific color. This column is marked with the color it should be filled with, guiding you to place only matching blocks there. It introduces an extra layer of strategy, as you must carefully manage the available blocks to complete the column without mixing in other colours.
The Match Stack helps streamline sorting but requires planning since it limits which blocks can be placed there. Successfully filling this column can free up space and make it easier to organize the remaining blocks, so it’s often a good idea to focus on matching and clearing blocks for this column early in the level.