2048 Game
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Slide the tiles with the arrow keys or by swiping. When two tiles with the same number touch, they merge into one with double the value. Every tile is a power of 2, and the goal is the 2048 tile, which is 2¹¹.
How to play 2048
- Press an arrow key (or swipe) to slide every tile as far as it can go.
- Two touching tiles with the same number merge: 2 + 2 = 4, 4 + 4 = 8, and so on. Your score goes up by the value of each new tile.
- After each move a new 2 (or sometimes a 4) appears.
- Make a 2048 tile to win. The game ends when the board is full and no merge is possible.
The math behind 2048
Every tile is a power of 2: 2 = 2¹, 4 = 2², 8 = 2³, …, 2048 = 2¹¹. Merging two equal tiles adds one to the exponent. To build one 2048 tile from 2s you need 2048 ÷ 2 = 1,024 tiles of value 2, merged 1,023 times. That is why the game takes hundreds of moves.
| Tile | Power of 2 |
|---|---|
| 16 | 2⁴ |
| 128 | 2⁷ |
| 512 | 2⁹ |
| 1024 | 2¹⁰ |
| 2048 | 2¹¹ |
Winning strategy
- Keep your biggest tile in one corner and build a chain of decreasing tiles along one edge.
- Use mainly two or three directions and avoid the move that pulls the big tile out of its corner.
- Merge small tiles early so the board does not fill up.
- Think one move ahead: where will the new tile appear?
Powers of 2 quiz: 10 questions
Test yourself with 10 multiple-choice questions. Choose an answer and press Submit to see if you are right and why. Your score appears at the end.
Quiz complete
Frequently asked questions
Is there a trick to win 2048?
Keep the largest tile in a corner and build down along one edge. Avoid the direction that moves it out of the corner.
What happens after 2048?
You can keep playing toward 4096 (2¹²) and beyond.
Can I undo a move?
Yes, one move at a time with the Undo button.
How is the score calculated?
Each merge adds the value of the new tile, so making a 64 adds 64 points.
Does it work on phones?
Yes. Swipe on the board or use the arrow buttons below it.
Sources
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