Daily 2048 (FreePuzzles)

2048 is played on a four by four board. Each move slides every tile as far as it will go in one direction, and when two tiles with the same number meet they merge into one with their sum. A new small tile appears after every move, and the game ends when the board is full and nothing can merge.

FreePuzzles.net, a free puzzle site from FlameAI Studio, turns it into a daily challenge: the game is headed with the day's date, and everyone that day starts from the same grid. A counter above the board tracks your score, which grows with every merge, and how many moves you have made. Reaching the 2048 tile completes the day's challenge. When the game ends, a share button copies your result or posts it to X, so friends who played the same start can compare.

You play with the arrow keys on a computer or by swiping on a phone, with no account. The site's Daily section also has a sudoku, a word search, a Connections-style grouping puzzle and a sliding number puzzle, each one a day.