What is it?
Number Merge is a calm puzzle of our own design. You get one numbered tile at a time and place it on any empty square of a 5 × 5 board. When three or more equal numbers touch side by side, they merge into one tile one higher, right where you placed the last tile. Set up chains, keep the board from filling up, and chase a high score.
Who is it for?
Fans of merge and 2048-style games, people who want a relaxing puzzle without a timer, and students who like planning ahead.
How to use it
- Look at the next tile shown above the board.
- Tap an empty square to place it (keyboard: arrows move, Enter places).
- Make groups of three or more equal numbers touching side by side (not diagonally) to merge them.
- Watch Score, Biggest tile and Best score. Undo last tile takes back one placement; New game starts over.
- The game ends when every square is full.
Scoring and a worked example
Each merge scores 10 × the number of tiles joined × their value. Merging four 3s gives 10 × 4 × 3 = 120. In a chain, three 1s merge into a 2 beside two other 2s, which merge straight away into a 3; every merge in the chain adds points.
- Keep similar numbers near each other so they can join later.
- Place the merging tile where you want the bigger number to end up.
- Keep one corner area free for awkward tiles.
Errors and how to fix them
- “Undone (one undo per tile).”: you can undo only the last tile, once; the next undo becomes possible after you place another tile.
- Tiles touching corner to corner didn’t merge: only side-by-side neighbours count.
- Two equal tiles didn’t merge: you need three or more in one connected group.
- My game, best time or score has gone: it is kept only in this browser on this device. Private windows, clearing site data, or another browser or phone start fresh.
Open the tool: Number Merge
Still stuck?
Contact support. Tell us which tool or page you were using, what you tapped, what you saw, and your phone or computer and browser (for example: Android phone, Chrome). We reply by email.
Questions, or an error not listed here?
Tell us in the comments: what you were doing, the exact message you saw, and your device and browser. We read every comment and add new fixes to this article.