Blitz Sudoku — Speed Sudoku Against the Clock
Blitz turns Sudoku into a race against time. You start with an ordinary Sudoku, but the starting clues vanish one by one on a timer— the help thins out as you play, so you have to read the board and pull out every deduction you can while the clues are still there. It's the mode for players who like speed and a little adrenaline.
How Blitz Sudoku works
Open by scanning the easiest rows, columns and boxes and placing every “obvious” digit first. Don't get stuck on a hard cell — clear the easy wins quickly, because a clue disappears every few seconds. You pick the pace: relaxed for breathing room, or panic to crank the pressure all the way up.
Why play speed Sudoku?
A timer forces faster pattern recognition — with practice you start to glance at a box and just know which digits are missing. Blitz trains speed and instinct rather than deeper logic, which makes it a fresh jolt for experienced Sudoku players.
Frequently asked questions
What is Blitz Sudoku?
Blitz is a speed mode. You start with normal Sudoku clues, but every few seconds one of them disappears — so you have to read the board fast and lock in your deductions before the help vanishes.
How fast do the clues disappear?
You set the pace. A relaxed interval gives you breathing room; a panic-fast one ramps the pressure right up, so you can tune how intense the race feels.
Is Blitz harder than regular Sudoku?
It adds time pressure rather than harder logic, so it trains speed and pattern recognition more than deduction. The underlying puzzle is still a normal solvable Sudoku.
Is Blitz Sudoku free?
Yes — completely free in your browser, with no download and no account.
Can I play Blitz Sudoku on my phone?
Yes. It runs in any modern mobile browser, so it works on phones, tablets and computers.