A task: Clean the board by connecting the same tiles;
How to play Mahjong Connection - Mahjong Connect: Choose tiles by clicking on it with the mouse.
Another option online is the Mahjong Relationship game.
Purpose of the game Mahjong Communication - clear the field from the tiles. You can only remove paired tiles that are near or at a distance, but they require no more than three imaginary straight lines.
Time to complete each level of the game Mahjong Communication is limited. In each new level new types of tiles are added, which complicates the task with each new level.