Tic-Tac-Logic is a single player puzzle based on tic-tac-toe.
Each puzzle consists of a grid containing X's and O's in various places.
The object is to place X or O in the remaining squares so that:
- There are no more than two consecutive X's or O's in a row or column;
- the number of X's is the same as the number of O's in each row and column; and
- all rows are unique and all columns are unique.
