Beginner to Advanced · 6×6, 8×8 & 10×10 Strategies

Mini Sudoku Techniques for Faster Solves

The patterns that actually save time on Mini Sudoku. Pencil-mark discipline, hidden singles, pointing pairs, and a small daily routine.

Beginner

Beginner Mini Sudoku Techniques

The fundamentals. Get comfortable on 6×6 first, then 8×8 and 10×10 follow naturally.

Naked singles: a cell where only one digit fits.

Use pencil marks. Update them every time you place a value.

Look at each region for the digit that's missing — it's often easier than scanning the whole board.

After every placement, re-check the row and column for new singles.

Intermediate

Hidden singles, pairs, and box-line reduction. The next layer once the basics feel automatic.

Hidden singles: a digit that can only go in one cell within a row, column, or region.

Naked pairs: when two cells share the same two candidates, those digits can't go anywhere else in the unit.

Compare row and column patterns to find contradictions early.

Box-line reduction: if a digit in a region is confined to one row or column, remove it from the rest of that row or column.

Speed

A short, repeatable session for getting noticeably faster within a week or two.

Use 6×6 as a warm-up before timed runs on bigger grids.

Place all candidates for one digit at a time. It's faster than scanning cell by cell.

Play daily. Pattern recognition gets noticeably faster within a week.

Advanced

These come up on harder boards. Add them once the fundamentals feel automatic.

When a candidate only appears in one row or column within a region, eliminate it from the rest of that row or column to force progress.

If a pair (or trio) of cells inside a region share the same candidate, remove that candidate from other cells in the intersecting row or column.

Assign two colours to a candidate pair across the grid. If one colour causes a contradiction, eliminate it to solve the pattern quickly.

Warm-up (2 minutes): A 6×6 grid to get the patterns flowing and check your pencil-mark habit.
Main session (5 minutes): Today's daily Mini Sudoku. Watch the clock, note one technique that helped.
Optional replay: Open the daily again to beat your time, or step up to a harder difficulty.