The Rules of Idiot's Delight

Idiot's Delight uses a standard 52-card deck (no jokers) with aces ranked 
high, above kings.  The game starts by dealing four cards in a row.  You may 
discard any card that is lower than another card of the same suit.  When no 
more cards can be removed, deal four more cards onto the remainder of the 
previous deal and remove all possible cards.  If a pile is completely 
depleted, you can move a card from the top of another pile into the space.

The game continues in this way, dealing four cards at a time, then removing 
all possible cards.  The game is won if only the four aces are left at the 
end of the game.

Be very careful of which card you move into spaces.  The natural inclination 
is to move aces into spaces as soon as possible, but often it is advisable to 
consider other possibilities, depending on what cards can be freed up with 
each move.