Free killer sudoku sheets to print at home: four puzzles or one big grid per page, with an answer page, in five levels. Easy, medium and hard start with a few numbers filled in — switch them off for cages only.
Cage combinations only. The best way to learn.
New set every time · answers included · PDF
Adds the rule of 45 and cages locked inside a box.
New set every time · answers included · PDF
Multi-row rule of 45 and innie–outie differences.
New set every time · answers included · PDF
The hard techniques with bigger cages.
New set every time · answers included · PDF
Combination exclusion and X-Wing style patterns. Still no guessing.
New set every time · answers included · PDF
Every puzzle comes from the same collection as the Quietdoku app, has exactly one solution and can be solved by logic alone. Print only the first page to keep the answers out of sight.
Play →Rules and combination chartPrintable sudoku puzzles with answers
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