13 introduces a unique and engaging objective: discard pairs of cards that sum up to 13. With various permutations, each posing its own level of difficulty, the game promises a dynamic and intellectually stimulating experience.

The primary goal is to clear the tableau by discarding all cards, utilizing your skill in pairing cards to reach the magical number 13. The complexity of the game lies in the multitude of ways you can achieve this goal, keeping each session fresh and exciting.

The mechanics allow you to move one card onto another, eliminating them from the tableau. This strategic element introduces a layer of decision-making, as you must choose your moves wisely to uncover and discard pairs efficiently.