Sudoku guides

Paper still beats a screen for some people. Here is how to get good sheets in one step.

Being stuck is not a sign of weakness — it is the puzzle telling you which tool to pick up next.

You know the rules and it still feels slow. These six habits are the difference.

Typical times per difficulty — and why comparing them is less useful than it looks.

A sober look at what a daily puzzle does for you, and what it does not.

Sudoku is an excellent workout for the brain and is especially popular among seniors.

Besides the classic 9x9 grid, there are many other exciting Sudoku variants to discover.

Sudokus come in various difficulty levels, ensuring there is a suitable challenge for every player.

Sudoku is not only a great pastime for adults but also promotes logical thinking in children.

A small mistake in Sudoku can ruin the whole puzzle. We show you what to watch out for.

With the right technique and a little practice, you can drastically reduce your Sudoku solving times.

The questions people ask before cage techniques have names — with a direct route from the rule to a real puzzle.

A calm decision path for the moment a grid stops moving: inspect the simplest proof first, then move on only when that proof is absent.

Candidate notes are not a decoration. Used in a fixed routine, they turn uncertainty into small, checkable deductions.

A cage sum limits a set of digits, not their order. Learn to record only the combinations that survive and let the grid do the rest.

A repeatable solving order turns a page of cage sums into a chain of small proofs—without treating arithmetic as a guess.