2048 — Play Free Online

How 2048 works

Four by four grid, arrow keys or swipes. Every input slides every tile as far as it can go in that direction, and two tiles of the same number that collide become one tile of double the value. After each move a new 2 — occasionally a 4 — appears in a random empty cell. Reach the 2048 tile and you have won, though the game will let you keep going.

The thing that catches people out is that a move moves everything. There is no way to nudge a single tile. Every keypress rearranges the whole board, which is why 2048 is a planning game rather than a reaction game.

The corner strategy, and why it works

Pick a corner and never let your largest tile leave it. Most players use the bottom-left. Then use only three directions — left, down, and right — and treat the fourth, the one that would pull your big tile out of the corner, as forbidden.

The reason this works is that merges need neighbours of equal value. If your biggest tile wanders, the second-biggest can never line up with it and your board fills with orphaned large numbers that can no longer combine with anything.

Keeping a clean bottom row

• Build the bottom row in descending order from your anchor corner: the biggest tile in the corner, then the next biggest beside it, and so on.
• Press down and left far more than anything else. Press right only to compact the upper rows.
• Press up only when you have no other legal move at all — it is what breaks a well-built bottom row.
• Merge upward into the anchor row rather than sideways across it, so the ordering survives.

The mistake that ends most runs

Filling the board with distinct mid-sized tiles — a 32 here, a 64 there, a 16 in the corner — leaves nothing that can merge and no empty cells for the next spawn. That is the actual loss condition; running out of moves is just the symptom.

The defence is to merge early and often, even when the merge feels small. Two 4s becoming an 8 is worth more than it looks, because it returns an empty cell to the board.