Moving runs and empty columns

The lesson in words

Officially you move one card at a time. But with free spaces you can move an ordered run card by card, so the game does it in one go.

With f empty free cells and e empty columns, you can move up to (f + 1) × 2^e cards. Each empty column doubles it. An empty column can also take any card or run.

You know every rule. Test yourself in the rules check.