Sudoku HintSudoku asks you to compare positions, keep track of possibilities and check your reasoning. It can be an enjoyable way to spend time thinking.
What has research found?
A 2019 observational study compared self-reported number-puzzle frequency with cognitive test performance in 19,078 adults aged 50–93. More frequent puzzle use was associated with better performance on several measures of attention, reasoning and memory.
What the findings do not prove
The study did not establish that Sudoku caused the differences, prevented dementia or improved everyday thinking. People already good at these tasks may be more likely to play. It did not test this app.
Choose a difficulty you enjoy, use notes or hints when needed, and take breaks. Try the puzzle to see whether you enjoy the process rather than aiming for a promised health benefit.
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