Squaring the circle, an Uncommon card

The card carries these facts from its Wikipedia article.

• It is the challenge of constructing a square with the area of a given circle by using only a finite number of steps with a compass and straightedge.
• The difficulty of the problem raised the question of whether specified axioms of Euclidean geometry concerning the existence of lines and circles implied the existence of such a square.
• In 1882, the task was proven to be impossible, as a consequence of the Lindemann–Weierstrass theorem, which proves that pi is a transcendental number.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Squaring the circle article was read about 100,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 75 and blocks with 79: each hit it takes is cut by 32 %.

Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.

The cards just above and just below Squaring the circle in the power ranking, all domains together.