Sudoku· Beginner

Goal

Fill in the empty cells with numbers 1-9 to complete the puzzle.

Rules

  • Each row must contain 1-9 exactly once.
  • Each column must contain 1-9 exactly once.
  • Each bold-bordered box must contain 1-9 exactly once.
5
3
·
6
·
·
·
9
8

Use memo mode to note down candidate numbers.

Sudoku trains working memory and logical reasoning simultaneously. Numerical logic tasks have been shown to improve executive function.

  • Ferreira et al. (2015) - Numerical Logic and Executive Function
  • Grabbe (2011) - Sudoku and Cognitive Abilities