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Mini Killer Sudoku hub
Compact 6×6 Killer Sudoku with dotted cages, sum clues, notes, hints, and undo.
Fill rows, columns, and 2×3 blocks with digits 1–6. Cage digits cannot repeat and must match each sum clue.
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Did you know?
We generate fresh Sudoku-valid boards so you can rehearse the logic Killer puzzles inherit before cage overlays ship in-browser.
When you graduate to printed Killers, sums shrink candidate tuples—read our cage guides while you sharpen pencil-mark habits here.
Candidate marks remain essential for harder Killers; treat this hub as technique rehearsal.
Quick questions
Yes. No payments or sign-up—play as much as you like.
Yes. Family friendly, with no inappropriate content.
No—open the site and choose a difficulty.