Printable Oni SudokuFree, with answers: 500 puzzles

Puzzles for confident solvers, using advanced techniques such as the X-Wing. Every puzzle is free and prints large on A4, with the answer on page 2.

EasyMediumHardOni

What Oni sudoku is like

A challenge for those who can solve Hard. Checked to be solvable by logic alone, with no guessing.

Techniques used

See an example of solving Oni, and how it differs from other levels →

Today's Oni puzzle (11/13, No.198)

Changes every day at 0:00 Japan time. Print it as it is.

Solve on phone or PC →

Oni Sudoku No.198puzzlelounge.app/nanpure

Every column, row and bold 3×3 box holds each digit 1 to 9 once.

See the answer

Answer to Oni Sudoku No.198

Oni puzzles: all 500

Choose a number to print that puzzle. The same number is always the same puzzle.

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Questions

Is it really free?

Yes. No sign-up is needed, and every puzzle is free to print.

Are answers included?

When printed, page 2 is the answer. If you do not want the answer, choose page "1" only in your print settings. On screen you can check it with "See the answer".

Is there only one answer?

Yes. Every puzzle has one answer and has been checked to be solvable by logic alone, with no guessing.

Can I hand them out at a school or facility?

You are free to print and hand them out for lessons, brain training, recreation and the like. Please do not collect the puzzles to sell or redistribute them.

Can I also solve on a phone?

Any puzzle can be solved in your browser from "Solve on phone or PC". Notes and hints that teach how to solve are available too. Hard and Oni take a ticket per puzzle in the browser (none needed with the Lounge Pass). Printing is free at every level.