🔢 2048

This is the single change that takes most players from 512 to 2048. Choose one corner, keep your largest tile parked there, and never make a move that could pull it out. In practice that means living on three of the four directions: if your big tile sits bottom-left, use left, down and right, and treat up as a move of last resort.

The reason is what happens on the swipe you did not plan. Every move spawns a new tile, and an up-swipe can drop a 2 underneath your biggest tile, splitting the row you spent the whole game building.

Keep your bottom row ordered: largest in the corner, descending along the row. That ordering is what makes merges cascade — when two 128s finally join, the 256 they make is already sitting beside the other 256, which is beside the 512.

Players who scatter their big tiles end up with a board full of large numbers that can never touch each other. The board is not full of tiles at that point so much as full of dead ends.

You lose when no move is possible, and every move adds a tile, so free space is the resource you are actually managing. When things get tight, take the move that merges the most tiles rather than the one that makes the biggest number — two small merges free two squares, and squares are what keep you alive.

It also pays to think one move ahead about where the new tile can land. Planning that far is most of the difference between a good run and a lucky one, which we go into at cerdikcerdik.com/blog/2048-planning-ahead.

The grid is the classic 4×4. On a phone, swipe in any direction; on a keyboard, use the arrow keys. Your score is the sum of every merge you make — joining two 256s adds 512 — so the score climbs steeply near the end of a good run rather than evenly throughout it.

There is no undo, which is deliberate. Knowing a move is final is what makes you check the board before you swipe, and that habit is the whole skill of the game.