Number Chain

Number Chain fills a grid with number tiles. Tap a tile to select it, then tap an orthogonally adjacent tile showing the same number to merge them into the next value at the destination. Each merge removes one tile and raises your score. You win once the board has been collapsed down to a small handful of tiles, so keep pairing equal neighbors until you run out of moves. Pick a board size before starting: 4x4 is the relaxed warm-up, 5x5 is the standard puzzle, and 6x6 fills the grid with so many tiles that a dead end is always one careless merge away. If no equal neighbors are adjacent, the round ends — you win if the board is small enough, otherwise it's a dead end.