Merge Numbers
A calm number puzzle that is very hard to put down. Slide every tile on the 4×4 board at once; two equal numbers that meet merge into their sum. Plan your corners, chain merges, and climb all the way to the 2048 tile — then keep going for a record. Three undos per game, and your best score is saved.
How to play Merge Numbers
⌨️ Keyboard & mouse
- Arrow keys or WASD to slide
- U
- undo
- N
- new game
- Free, no sign-up
- Plays in the browser
How Merge Numbers works
Swipe and every tile slides as far as it can in that direction. Two tiles of the same number that collide merge into their sum, and a new 2 (occasionally a 4) appears in a free cell after each move that changed something. The game ends when the board is full and no neighbouring pair matches.
Two habits carry a run. Keep your biggest tile in one corner and never swipe in the direction that would pull it out of there, so your big numbers stay stacked along one edge. And merge along that same edge, building a descending row underneath, rather than letting large tiles scatter into the middle.
The board size is yours to pick: 3×3 is a sprint to 512, 4×4 is the classic run to 2048, and 5×5 and 6×6 leave far more room to recover from a bad move. Each size keeps its own best score, and three undos are there for the swipe you regret.
Tips for Merge Numbers
- Pick a corner and keep your biggest tile in it.
- Mostly slide in two directions toward that corner. Use the third only when you must.
- Build a descending chain along the edge so each merge feeds the next.
- You get three undos a game, so keep them for real mistakes.
