TENKYU

The game is set on a pyramid-shaped board, with tiles that contain various numbers and a time keeping mechanism. Players choose a color and take turns placing tiles in an attempt to get rid of all their tiles.

The game requires strategic thinking as players need to create sets of numbers in a specific pattern, and each move limits the available numbers on the board. The game can be played online, requiring no download or registration, and offers a relaxed way to challenge one's problem-solving skills in a challenging yet manageable environment.