Twenty48 Solver

Play with the arrow buttons or focus the board and use the arrow keys. Suggest move evaluates the current position without changing it; Auto-play searches and plays repeatedly. Pause, a manual move, editing settings or leaving the tool stops it. Reaching 2048 pauses once; you can continue playing.

Enter a board accepts 16 integers in four rows, separated by spaces, commas or semicolons: 0 for empty cells, otherwise powers of two from 2 to 1073741824. Use board resets the move counter and score, which counts merges made here. Invalid input leaves the current board unchanged. A new game starts with two random tiles. Only a move that changes the board creates a new tile, uniformly in an empty cell: 90% value 2 and 10% value 4.

Expectimax alternates player choices and random spawns, considering every empty cell equally. Depth counts these alternating levels; depth 6 covers three player moves and three spawns. A job evaluates at most 60000 nodes in a background worker. Only a fully completed depth chooses the recommendation; a limit notice identifies a shallower result. This is a heuristic, with no guaranteed optimal move or win probability. The evaluation combines free cells, monotonicity, smoothness, largest tile and a corner preference. Move delay is the pause after the search and move, not a guaranteed frame rate.

Game state and draft settings remain in memory while navigating this page; reloading discards them. Hidden tools stop their search and timers. The browser must permit module workers for AI; manual play stays available. Rules: original 2048 game.