Greater-Than Grid
Greater-Than Grid is a number placement puzzle with very few printed digits. Instead, tiny signs sit between some neighboring squares and tell you which one is larger. Fill the board so that every row and column uses each digit once and every sign holds true.
There is also an Adjacent mode, where bars between squares mark numbers exactly one apart. Both run in a normal browser tab with nothing to download, which is handy on a Chromebook.
How to play Greater-Than Grid
A grid with N columns uses the digits 1 through N. On a 5x5 board, for example, each row and each column holds 1, 2, 3, 4 and 5 once. Some squares may start filled.
In the default mode, a sign works like it does in math class. The wide end opens toward the bigger number and the point aims at the smaller one. On tougher levels, part of the signs are left out and you must manage with less.
In Adjacent mode, a bar means the two digits differ by one, such as 4 and 5. Every such pair is marked, so neighbors without a bar are never consecutive. Choose a square and type a digit, or right-click it first to jot small pencil marks. The grid flashes once it is correct.
Controls
| Action | Keyboard | Mouse | Touch |
|---|---|---|---|
| Enter a digit | Arrow keys, then type the number | Click a square, then type | Tap a square, then a digit button |
| Toggle a pencil mark | Enter for pencil mode, then type | Right-click a square, then type | Switch Tap to pencil mark, or hold a square, then tap a digit |
| Erase a square | Space, Backspace or 0 | — | Tap the square, then Clear |
| Fill all pencil marks / fill with obvious clashes removed | M / H | — | — |
| Fade a used sign | Shift or Ctrl + arrow toward the sign | Click the sign | Tap the sign |
| New game, undo, redo | N, U, R | Menu bar buttons | Menu bar buttons |
Tips
- The smaller side of any sign can never be the top digit, and the larger side can never be 1. Strike those right away.
- Chains of signs are powerful. Four squares climbing in a row on a 5x5 board leave only two choices for the first one.
- A square that is smaller than every neighbor around it is usually a 1 or a 2.
- In Adjacent mode, missing bars matter as much as drawn ones. A 3 with no bars beside it rules out 2 and 4 in every neighbor.
- Press H to fill pencil marks with simple row and column clashes already removed, then cut them down using the signs.
If you like Greater-Than Grid, try these
Skyscraper SightlinesNo repeats in a line stays the rule, while edge clues about visible towers replace the little inequality signs.
Sudoku FlowThe classic nine-by-nine number grid uses the same no-repeat logic, with notes, hints and a daily challenge to keep you going.
Questions
How do you read the signs in Greater-Than Grid?
Read them like math symbols. The point faces the smaller digit and the open side faces the larger digit, whether the sign runs across or up and down.
Can I play Greater-Than Grid on a touch screen?
Yes. A row of digit buttons and a Clear button appears on touch devices, and a Tap switch decides whether a tap writes a digit or a pencil mark. Very large custom grids that use letters still need a keyboard.
What difficulty should I start on?
The 4x4 Easy preset is the gentlest way in. Presets climb to 7x7 Extreme, and the Custom option goes larger if you want a long session.
More like this: all puzzle games · Math games · every game A–Z
