Get rich, the card game

• Take two packs of 52 cards
• Separate out the same 10 cards from each pack
• Lay out one set of 10 on the table to create 10 columns

Repeatedly

• Shuffle the other set and deal one card
• Take two matching cards from the remains of the two packs
• Add one to the column that contains the card matching the dealt card
• Add the other and the dealt card to the shuffled cards

This game implements preferential attachment which is sometimes known as the rich get richer. The probability that a column grows is proportional to the number of cards that it already contains.