- 1. It is a 3*3 number grid.
- 2. Drag the numbers from the rightmost of 3 numbers suggested below into the grid, which initially is kept empty.
- 3. If an adjacent number is a factor of or is divisible by that number, the smaller number vanishes and the larger number is updated by the quotient and consequently, the score gets updated.
- 4. There is a blank box in the right bottom to which you can drag and save a number for later.
- 5. Game is over when the grid is filled with the numbers not divisible by each other.