cognitive skills training

?
Guess which of four formulas is the largest or smallest.

Which one is correct?
Guess which of four formulas is correct and which is incorrect.

Photo Puzzle
Guess which one corresponds to the worm-eaten part of the picture

Rock, paper, scissors
Win or lose a game of rock-paper-scissors quickly

Number memory
A game in which you memorize the arrangement of numbers and select them in order

8 Puzzle
A game to complete a puzzle by sliding disparate pictures.

Matching game
A game to find pairs of photos

Sudoku
number puzzle

＊＊＊＊＊＊＊＊
All game records are saved and displayed in a graph.
It is useful for checking cognitive functions.