- Place umbers ad arithmetic symbols i the empty spaces o the playig field so that the example i the crossword puzzle is correct.
- Drag umbers ad symbols with your figer or mouse, or click o a empty cell o the playig field ad click o the umber or symbol you wat to place i that cell.

- Math crosswords are randomly generated.
- You can choose the difficulty and turn on or off arithmetic symbols as you wish.
- Arcade mode is a mode in which you need to solve crossword puzzles step by step to gain ranking points. Also in this mode, after each completed crossword puzzle, the difficulty will gradually increase.
- You can exit arcade mode at any time through the game menu and save your game.

For iOS:
Safari on iOS 8 and later supports WebGL 1.0, and on iOS 15 and later supports WebGL 2.0.

For Android：
Nearly all of them support WebGL