How to Play Block Merge
Use the arrow keys on a keyboard or swipe across the board on a touchscreen. Every move slides all tiles in the chosen direction. When two tiles with the same number meet, they merge into one tile worth their combined value and add that value to your score.
A new tile appears after every successful move, so leave yourself several open routes. Building large values in one corner and keeping nearby rows ordered can prevent the board from locking up. The run ends only when the grid is full and no neighboring tiles match.