Pill puzzle, the card game

• Take one pack of 52 cards
• Spread out the hearts in one row and the clubs in another
• Retain the diamonds and spades for shuffling

Repeatedly

• Shuffle the remains and deal one card
• Remove the card from the row with the same colour and rank
• Discard the dealt card

The game ends when there is at most one card of each rank.

This game implements the pill puzzle.