PyraNum is a simple math puzzle. You complete a pyramid of numbers by filling in blank positions given three rules: a cell value must be sum or difference of the two cells below, a row cannot have duplicate numbers, a number cannot be less than one or more than the grid size.
Solve the case and save the professor in Between the Worlds II: The Pyramid!
Pyramid Solitaire is a card game where the objective is to remove all the cards.
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