Sudoku Coach
Free classroom printable

Today’s printable Sudoku, with a separate answer key

One uncluttered puzzle for pencil-and-paper solving. The solution prints on its own page, so learners can work without seeing the answer.

Play today’s puzzle online
Sudoku Coach · doku.su

Daily Sudoku

October 15, 2026
Medium

84392
135
5916
2
631
174
2683
7541
541286

A simple solving routine

  1. Choose a row, column, or 3×3 box with several filled cells.
  2. List the digits that are missing.
  3. Place a digit only when its row, column, and 3×3 box leave one possible spot.

Free for personal and classroom use. Please keep the doku.su credit when sharing printed copies.

Sudoku Coach · doku.su

Answer key

October 15, 2026
Medium

786453192
291867435
453291768
345129687
678345921
129786354
912678543
867534219
534912876

Free for personal and classroom use. Please keep the doku.su credit when sharing printed copies.

Technique library

Teach the reasoning, not the answer

Use the free technique library for worked examples you can discuss before handing out the puzzle.

Open the technique library →