The Daily Sudoku X (SudokuWiki)
A daily sudoku where both long diagonals must also hold 1 to 9.
Every day: One numbered Sudoku X a day (#749 on 3 October 2026), the same for every visitor; the free page shows one grade and supporters can play all four. New puzzle: Midnight GMT.
The Daily Sudoku X is one of SudokuWiki's numbered daily puzzles: a 9x9 sudoku in which the two main diagonals, shaded on the grid, must each contain the digits 1 to 9 as well as every row, column and box. Play it on the page or print it.
About The Daily Sudoku X (SudokuWiki)
SudokuWiki.org is Andrew Stuart's long-running site about sudoku solving, built around his online solvers and strategy guides, and it publishes a set of numbered daily puzzles. The Daily Sudoku X is the diagonal variant: alongside the usual rules for rows, columns and 3x3 boxes, each of the two long diagonals must contain 1 to 9 exactly once. The diagonal cells are shaded so you can see them at a glance.\n\nEach day's puzzle has a number and a date, #749 on 3 October 2026, with a star rating for difficulty. The free page gives one grade a day; All-Access Supporters can play all four. You can enter numbers straight into the grid with the keyboard or the on-screen pad, keep notes, watch a timer, or print the puzzle to solve on paper.\n\nThe extra diagonal constraint gives you more to work with early on, so a Sudoku X often opens up faster than a plain sudoku of the same rating, and the site's Sudoku X solver explains any step you get stuck on.\n\nIt suits sudoku players who want a regular daily variant with the same calm, printable feel as the site's other dailies.
How to play The Daily Sudoku X (SudokuWiki)
- Open The Daily Sudoku X on SudokuWiki.
- Fill every row, column and 3x3 box with the digits 1 to 9 once each.
- Make sure both shaded diagonals also contain 1 to 9 once each.
- Enter digits with the keyboard or the number pad, using Notes for candidates.
- Finish the grid, or print it to solve on paper.
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