PileOn
One-Deck game type. 1 deck. No redeal.
Object
Rearrange the cards so that each pile contains four cards with the same rank.
Rules
Rearrange the cards so that each pile contains four cards with the same rank. This should leave two piles empty.
Cards can be moved on top of any other card or cards of the same rank. Groups of cards can be moved if they are of the same rank.
A pile cannot have more than four cards, and an empty slot can be filled with any card or group of cards with the same rank.
Strategy
Keep one of the piles clear as much as possible. Don't allow a pile of three cards to build up on top of a single card, especially if the final card from the set is not a bottom card in another pile.