The Value of Empty Columns
Level: Basic
An empty column is a temporary workspace and a slot for a King.
Fully emptying a column gives you a powerful resource. Any King can be placed on an empty column, and moving a King flips the card beneath it, opening up new information.
An empty column can also serve as temporary space to park a group of cards, making it a key to breaking out of stuck situations.
However, if you fill an empty column with a King too hastily, you lose that flexibility. Plan the timing of when to fill it.
Related strategies
Basic
Kings to Empty Columns
Move a King to open face-down cards and start a long sequence.
BasicFlip Face-Down Cards First
Prioritize moves that reveal hidden information.