Each cell should contain either a or a .

Clicking on the cells, toggle between , , and empty.

Each row and column should contain exactly 3 and .

Solve the puzzle given in the side by using the above rule.

Not more than 2 or should be placed next to each other, either in a column or a row.

If two neighbouring cells are of same type, then the next cell on both sides should be of opposite type.

This ensures that not more than 3 similar cells are together.

Fill the highlighted cells in the puzzle given on the side.

If there is a single empty cell between two cells of same type, then the middle cell should take the opposite shape.

It ensures that not more than 3 similar cells are together.

Fill the highlighted cells in the puzzle given on the side.

If both extremes are of same type, then the immediate next cells at both ends should be of opposite type.

It ensures that not more than 3 similar cells are together.

Fill the highlighted cells in the puzzle given on the side.

If the first two or the last two cells are of same type, then the extreme opposite cell will be of opposite type.

It ensures that not more than 3 similar cells are together.

Fill the highlighted cells in the puzzle given on the side.

Cells separated by '=' sign must be of the same type.

Cells separated by 'x' sign must be of the opposite type.

Fill the highlighted cells in the puzzle given on the side.

There are few other ways to detect a cell by checking the rule - not more than 3 of same type together.

Fill the highlighted cells in the puzzle given on the side.

After completing the practice activities, and learning the rules, click here to play the real games.