This is akin to the kids game 'memory', but with added complexity for your working memory. Ensure to turn a card a second time only if you found its siblings.
A quad is also known as a quartet, or four-of-a-kind in poker.
This is done on a grid of 3 by 4 cards.
Match all suits of cards with the same face value to score points.
Ensure to turn a card again only if you found its 3 siblings.
Once done, you'll see your score. The maximum score is 100%. There will be points deducted
- for luck (turning correct sets at once 'by accident')
- for taking long
- for turning cards more often than needed