CHALLENGE is a card game designed to stimulate attentional, visuo-perceptual, visual memory, and spatial reasoning processes. The goal is to analyze challenges, retain their shape or color in working memory, and provide an appropriate response. A second stage involves identifying the order in which the superposition of patterns determines the complete reality.

 Exercises are offered at 3 levels of complexity.

This game can be used by children aged 8 and older, as well as by older adults at risk of cognitive decline.