Rearrange the cards so that each pile contains all four cards from a single value. This should leave two piles empty, but it doesn't matter whether they are the same piles which were empty at the start.
Pila bakoitzean dauden lau kartak irudi berekoak izateko moduan antolatzea. Hori lortzean bi pila huts egongo dira, baina ez du axola jokoaren hasieran hutsik zeuden berberak diren ala ez.