Pairs: Professor Elemental deck

Pairs is a "New Classic Pub Game" featuring an unusual deck of cards. The deck has only the numbers 1 through 10, with a different number of each card: 1x1, 2x2, 3x3, and so on, up to 10x10 [2].

The Professor Elemental deck [1] includes a Professor-themed game using the Pairs deck called "Venture".

[1] Details of the Professor Elemental variant of the game, and its purchase: http://hippocketgames.com/professor

[2] General information about Pairs: https://cheapass.com/