Step 1 of 3

What is a Set?

A set is three cards where, for each of the four attributes — number, shape, shading, color — the values are either all the same or all different.

Valid set. Number, shape, shading: all the same. Color: all different. Every attribute obeys the rule.
Break it down
  • Numberall the same
  • Shapeall the same
  • Shadingall the same
  • Colorall different