Medium (Intermediate) 6×6 Mini Sudoku - Free Online Small Sudoku Puzzles

Play free medium (intermediate) 6×6 mini sudoku online—compact grids for kids, beginners, and quick logic practice.

Grid size4×46×6
Score
0
Time
00:00
Mistakes
0/3
Generating puzzle...

Controls

Press 1–6 to enter digits; D toggles draft mode.

• Press D to toggle draft mode

• Press Delete/Backspace to clear

• Press Escape to deselect

Why Mini Sudoku?

A friendly start for beginners and kids

Mini Sudoku uses a 6×6 grid with fewer digits than classic 9×9. The Medium (Intermediate) preset is a gentle way to learn scanning and elimination—ideal for children, complete beginners, and anyone who wants a short logic break.

Switch between 4×4 and 6×6, pick a difficulty, and practice the same row, column, and box rules as full-size sudoku—just on a compact board you can finish in minutes.

Why we recommend it

  • Easier to scan: fewer cells mean faster pattern spotting and less fatigue.
  • Kid-friendly length: short rounds that fit between homework or family time.
  • Builds confidence: master small grids, then move up to standard 9×9 sudoku.

What Is Medium 6×6 Mini Sudoku?

6×6 medium mini sudoku trims clues so you must coordinate rows, columns, and 2×3 boxes more carefully.

Ideal for intermediate solvers who want a faster session than 9×9 but more depth than 4×4.

How to Play Medium (Intermediate) 6×6 Mini Sudoku Online

Mini Sudoku Rules (6×6)

  • Use digits 1–6 exactly once in every row.
  • Use digits 1–6 exactly once in every column.
  • Each 2×3 box must contain digits 1–6 exactly once.
  • Given clues are fixed; fill only empty cells.
  • Switch sizes anytime—your account progress is per puzzle, not mode.

Tips for This Difficulty

  • Look for hidden singles in busy rows—they appear often in 6×6.
  • After each placement, sweep the intersecting box and line.
  • Keep notes tidy—six digits can clutter a cell if you are not selective.
  • If stuck, pick a different box with fewer blanks and restart the scan.

Mini Sudoku FAQ

Is medium 6×6 harder than 4×4 hard?

Often comparable—6×6 has more cells, so scanning takes longer even with easier clues.

Can I use hints?

Yes—three hints per game, same as classic mode.

Does difficulty change the number of digits?

Always 1–6; difficulty changes how many clues you start with.

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