Wednesday, August 5, 2026 · #2
Daily Sudoku— Wednesday, August 5, 2026
About Daily Sudoku
Sudoku is the purest logic puzzle there is: nine rows, nine columns, nine boxes, and a single rule that every one of them must contain the digits 1 to 9 exactly once. No arithmetic, no vocabulary, no trivia. Everything you need to finish the grid is already printed on it, which is why a well-made sudoku never asks you to guess.
Every grid on Puzzetto is generated fresh for its date and then checked by a solver that stops the moment it finds a second answer. If a cell can be removed without making the puzzle ambiguous, it goes; if removing it would leave two possible grids, it stays. That check runs after every single removal, so the puzzle you are looking at provably has one and only one solution — you can always reason your way to it.
Difficulty rotates with the day of the week. Monday through Wednesday are gentle warm-ups with around 40 to 45 empty cells, Thursday and Friday step up to the high forties, and the weekend grids strip out well over fifty digits and will make you work for the first breakthrough. Come back tomorrow and the whole thing resets.
How to play Daily Sudoku
- 1Look at the 9x9 grid. The printed digits are the givens; the blank squares are yours to fill.
- 2Fill every blank square with a digit from 1 to 9.
- 3Each row must contain all nine digits with no repeats.
- 4Each column must contain all nine digits with no repeats.
- 5Each of the nine bold 3x3 boxes must also contain all nine digits with no repeats.
- 6Use pencil marks to note the candidates for a square while you work, then commit a digit only when the logic forces it.
- 7The grid is finished when all 81 squares are filled and none of the three rules is broken.
Daily Sudoku strategy
- Naked single: if a square has only one candidate left after you cross off everything in its row, column and box, that candidate is the answer. This is the bread and butter of easy grids.
- Hidden single: if a digit can only go in one square within a row, column or box — even though that square has several candidates — it belongs there. Hidden singles are what break open medium grids.
- Scan by digit, not by square. Pick the digit that already appears most often, then sweep every box asking "where can this digit still go?" Cross-hatching the rows and columns it already occupies usually pins it down fast.
- Keep pencil marks honest. Write every candidate for a square, and erase them the instant you place a digit that eliminates one. Stale pencil marks cause more wrong answers than hard logic does.
- When you stall, look for a pair: two squares in the same unit holding the same two candidates and nothing else. Those two digits are locked into those squares, so you can strike them from every other square in that unit.
- Never guess. Every grid here is verified unique, so a stall means you missed an elimination, not that the puzzle needs a coin flip. Go back to the box with the fewest empty squares.
Recent Daily Sudoku puzzles
Every past puzzle is still playable, and each has its own hints and answer page.
Daily Sudoku — common questions
Does every puzzle have exactly one solution?
Yes. After each digit is removed during generation, a counting solver re-checks the grid and stops as soon as it finds a second solution. Any removal that would create ambiguity is undone, so every published grid is provably unique.
How hard is today's sudoku?
It depends on the day. Monday, Tuesday and Wednesday are easy, Thursday and Friday are medium, and Saturday and Sunday are hard. The number of blank squares rises with the difficulty, from about 40 on easy days to the mid-fifties at the weekend.
Do I need to guess or use trial and error?
No. Uniqueness means the solution can always be reached by elimination. Harder grids may need techniques beyond naked and hidden singles — pairs, pointing candidates, box-line reduction — but never a guess.
Is the puzzle the same for everyone?
Yes. Puzzles are a pure function of the date in UTC, so every player who opens the same date sees the same grid, and the archive will still show that exact grid years from now.
What does the number of givens tell me?
Roughly how much scaffolding you start with, but it is only half the story. A grid with 26 givens spread evenly can be easier than one with 30 givens clustered in three boxes, because the empty boxes are where scanning stalls.
Can I see the answer if I get stuck?
Yes. The answer page for each date reveals progressive hints first — which digit is easiest to scan for, then the middle row of the centre box, then the full top row — before showing the complete grid, so you can take the smallest nudge that unblocks you.
More daily puzzles
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