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Sudoku set

6x6 Medium Sudoku Puzzles Set 1

Free sudoku — 6x6 medium Set 1. Fun and challenging. Download and print today.

Solve 6x6 medium sudoku Set 1. Fun and challenging.

Sudoku play tools

  • Pencil marks
  • Grid state
  • Candidate digits
  • Elapsed time
  • Completion state

Variant rule

  • Rows, columns, and boxes contain every digit once.
  • One valid solution
  • Variant constraint validator
  • Visible rule support
  • Rows, columns, boxes

Hyper Sudoku — Free Online & Printable

Hyper Sudoku is closely related to Windoku but places its four extra regions in slightly different positions. Like Windoku, it adds four 3x3 areas that must each contain digits 1-9, but the region placement creates different solving patterns. The name "Hyper" reflects the elevated difficulty that these particular window positions create — the constraints interact in ways that require careful cross-region reasoning. Hyper Sudoku puzzles at the same difficulty rating as Windoku often feel harder, making it a good progression challenge after mastering Windoku.

About 6x6 Grid

The 6x6 grid strikes a balance between accessibility and depth. With 36 cells in 2x3 boxes, puzzles take 3 to 10 minutes depending on difficulty. The 6x6 is large enough to showcase variant rules meaningfully — Killer cages have room to create genuine arithmetic puzzles, Windoku windows overlap in interesting ways — while remaining completable in a single sitting. Many players find the 6x6 their "daily driver" format: challenging enough to be satisfying, short enough to fit into a break.

Medium Difficulty

Medium difficulty requires applying variant rules in combination with standard techniques. You''ll need hidden singles (where a number can only go in one cell within a region, even if multiple numbers are possible for that cell) and basic elimination chains. For Killer Medium, expect some cage combinations where two or more possible sets remain and must be narrowed by row/column logic. Average time: 10-20 minutes for 9x9. Candidate notation is helpful but not essential.

How to Get Started

  1. Choose "New Puzzle" to generate a fresh puzzle with a unique solution
  2. Click or tap cells to enter numbers (1-6 for 6x6)
  3. Use the constraint highlights to track which numbers are still available
  4. Print the puzzle if you prefer solving on paper

How to use this printable Sudoku set

Best for logic practice, print-and-solve puzzle books, classroom challenges, and variant Sudoku exploration.

  • Print the grid, solve with notes, then reveal or compare answers only after a full solving attempt.
  • Start with classic Sudoku, then branch into X, Hyper, Jigsaw, Killer, and other rule variants.
  • Use the previous and next set links to stay inside the same page family before jumping to broader hubs.

Answer key policy

Answer support is available for review after a real attempt; printable answer-key behavior depends on the activity type.

Same-family next steps

Use the previous and next set links to stay inside the same page family before jumping to broader hubs.

Measurement events

This page should measure landed, started, used hint, checked answer, completed, printed/downloaded, shared, and clicked next events when the matching controls exist.

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