One Up Puzzle
Fill each run between walls with the numbers 1 up to its length.
Every day: One numbered One Up grid a day (5x5 up to larger sizes), the same for everyone: fill each run of cells between walls with 1 up to its length. New puzzle: Daily, with a countdown to the next puzzle.
Play the daily One Up puzzleOneUpPuzzle on the App StoreOneUpPuzzle Lite (free) on the App StoreOneUpPuzzle on Google Play
One Up is a daily number logic puzzle created by puzzle author Rodolfo Kurchan. Each numbered puzzle is a square grid divided by walls, and every horizontal or vertical run of cells must hold the numbers from 1 up to the run's length, with no repeats. The website has a new grid each day, and paid and free apps collect more.
About One Up Puzzle
One Up looks simple: a square grid with some walls and a few numbers given. Every horizontal and vertical sequence of cells between walls must be filled with the numbers 1 up to the number of cells in it, in some order, with no number repeated in a segment. A one-cell gap takes a 1, a two-cell run takes 1 and 2, a three-cell run 1, 2 and 3, and so on, until the whole square is complete.
The website publishes one numbered puzzle a day (number 926, an 8x8, on 2 October 2026), with a countdown to the next. Everyone gets the same grid, and you can log in to keep track of your progress. The game includes notes, a Learn section with worked examples and keyboard shortcuts.
The puzzles are by Rodolfo Kurchan, and the site also offers puzzle sets from events such as Festival del Ingenio 15. The OneUpPuzzle app adds 60 original puzzles and 300 of the past dailies, and a free Lite app has 40 more.
It suits sudoku and kakuro fans who want a fresh rule set, and the small grids make it a good daily habit.
How to play One Up Puzzle
- Open One Up Puzzle and press Play for today's numbered grid.
- Find runs of cells between walls, horizontally and vertically.
- Fill each run with the numbers 1 up to its length, without repeats in the run.
- Start with one-cell runs (always 1) and two-cell runs (1 and 2).
- Keep going until every cell is filled and every run checks out.
Screenshots
Tips
- Place 1 in every single-cell gap first.
- A cell where a short run crosses a long one is limited by the short run.
- Use notes to track candidates in long runs.
- Read the Learn section: its sample puzzles show the main techniques.
Questions
What are the rules?
Each run of cells between walls, across or down, holds the numbers 1 up to its length with no repeats.
Do I need an account?
No. Logging in only keeps track of your progress.
Who makes the puzzles?
Rodolfo Kurchan.
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