Habit & wellness
The research on focus, working memory, and why a daily puzzle habit sticks better than most brain-training apps.
Morning puzzle versus evening puzzle
When in the day you do your Sudoku changes the puzzle. Which time fits which mood, and how to pick the right one for the day.
5 min read
The puzzle as a quiet space in the day
What a daily Sudoku does that fifteen minutes of phone scrolling doesn't — and why a small structured ritual holds up better than the alternatives.
5 min read
The streak trap
Streaks help motivation until they don't — when a daily-puzzle streak starts hurting your relationship with the puzzle, and how to do streaks better.
5 min read
A month of Sudoku, and what it actually does
An honest week-by-week account of what changes in your puzzling — and what doesn't — across thirty days of daily play.
5 min read
How to walk away when you're stuck
Walking away from a Sudoku is a technique, not a failure — when to do it, why it works, and how to come back to the puzzle.
4 min read
The narrow transfer problem
Why getting better at Sudoku makes you better at Sudoku — and what cognitive psychology actually says about the narrow transfer problem.
6 min read
What changes in puzzling after 60
What cognitive science actually says about ageing brains, why most of it is more reassuring than the headlines, and where Sudoku fits in honestly.
6 min read
What the research actually says about puzzles and the brain
What the research actually says about Sudoku, puzzles, and the brain — what's evidence-backed, what's overclaimed, and what's reasonable.
6 min read