In Block Color Puzzle 2019, you can play a game that has the same theme and gameplay as Mahjong, but you'll have a much more difficult time solving the puzzles. The game starts off with you placing blocks of different shapes and colors in a 10×10 grid.

The gameplay is very simple and easy to understand, so even younger kids can easily pick it up and play. The difficulty increases as you progress, with more and more puzzles requiring higher-level thinking. You can also compete with other players by trying to achieve the highest score on the leaderboard.

It has a very intuitive and easy to use interface, so you can easily navigate through the game and find the puzzle you need to solve. It is also very easy to learn, so even people with no prior experience can easily play and get the hang of it.