How to play

• Each move slides every tile as far as it can go in that direction.
• Two tiles with the same number merge into one worth double, and the sum is added to your score.
• A tile can merge only once per move.
• After every move a new 2 or 4 appears in a free cell.
• The game ends when the board is full and no neighbouring tiles are equal.

Tips

• Pick one corner and never move the tiles out of it — the biggest tile should stay put.
• Build a descending row along one edge; it lets you merge in a chain.
• Avoid the fourth direction: if you keep the big tile bottom-left, never press up.
• Merge small tiles early, otherwise they clog the middle of the board.