Challenging Sudoku puzzle for Monday 12th October 2026 [7738]
| a | b | c | d | e | f | g | h | i | |
| A | 1 | 4 | |||||||
| B | 9 | 8 | |||||||
| C | 4 | 2 | 3 | ||||||
| D | 7 | 6 | 9 | ||||||
| E | |||||||||
| F | 5 | 4 | 2 | 6 | |||||
| G | 3 | 1 | 7 | 5 | 6 | ||||
| H | 2 | 4 | 7 | ||||||
| I | 4 | 7 | 6 | 2 | 3 | 8 | 5 | 1 | 9 |
- Solve the puzzle Online in your browser.
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- Show the Solution to the Sudoku.
- Try today's easier puzzle; moderately difficult or Word Soduku or Jigsaw Sudoku or Samurai Sudoku instead.
- Download the puzzle for solving with Sudoku Dragon on your PC.
- Look at previous daily challenging puzzles and their solutions.
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For a full guide to solving 'hard' puzzles such as this please see our 
step-by-step solution guide
Today’s Quotation
“It is not always by plugging away at a difficulty and sticking at it that one overcomes it; but rather,often by working on the one next to it. Certain people and certain things require to be approached on an angle.”
André Gide (Journals) 1924
Daily picture of British countryside
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