Numlock (Zalize)
Cross out numbers until every row and column hits its target sum.
Every day: One number grid a day, the same worldwide: strike out numbers so the remaining ones in each row and column add up to the targets. 5x5 on Monday, 6x6 mid-week, 7x7 with negative numbers at weekends; one unique solution. New puzzle: Midnight UTC.
Numlock is a daily number logic puzzle on Zalize Daily Games, a kind of reverse sudoku. Strike out numbers so what is left in each row and column adds up to the target at its edge. Grids grow through the week, and each has one solution.
About Numlock (Zalize)
Numlock gives you a grid full of numbers with a target sum at the end of each row and column. You tap numbers to cross them out, and tap again to bring them back. The puzzle is solved when the numbers still standing in every row and column add up to their targets.
Each daily grid is checked to have exactly one solution that can be reached by logic, without guessing. Difficulty climbs through the week: 5x5 grids on Monday, 6x6 in the middle of the week and 7x7 with negative numbers at the weekend. Undo is always there, and your time goes onto the share card.
A practice mode gives unlimited extra grids that do not touch your streak. The site says there is no paywall and no interstitial ads.
Zalize Daily Games, at daily.zalize.com, is a free set of small browser games from zalize.com, each with one puzzle a day that is the same for every player in the world. All of them switch at midnight UTC. There is no account: streaks and statistics stay in your browser and can be moved to another device with a sync code, and playing every game on the same day earns a Perfect Day badge. The site is offered in ten languages.
How to play Numlock (Zalize)
- Open daily.zalize.com/numlock to load today's grid.
- Tap a number to cross it out; tap it again to restore it.
- Make the remaining numbers in each row and column add up to its target.
- Undo any move if a line goes wrong.
- Match every target to finish and share your time.
Tips
- A number bigger than its row target (with no negatives around) must go.
- If a row already sums to its target, every number in it stays.
- Check rows and columns together: a cell decided in one line settles the other.
- At weekends, remember that crossing out a negative number raises the total.
Questions
How big is the Numlock grid?
5x5 on Monday, 6x6 in mid-week and 7x7 with negative numbers at the weekend.
Does Numlock have a practice mode?
Yes. Practice gives unlimited extra puzzles that do not count toward your streak or statistics.
When does a new Numlock puzzle come out?
Every day at midnight UTC, the same for every player worldwide.
Is Numlock free?
Yes. It runs free in the browser with no account or sign-up; your streak is saved on your device.
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Sumplete Daily
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