The puzzle below is a current daily puzzle. This puzzle is competitive - you have to register to solve it and participate in the daily competition. To register click Login link in the top right corner.
You can use the scores page to see the results of other competitors for this puzzle.
All the puzzles from the previous days are available at our archive page. Puzzles which are older than 5 days do not affect the score table and can be attempted without registration.
Author: Lemesh
Place either an ’X’ or an ’O’ into each empty cell such that four consecutive ’X’s or ’O’s do not appear horizontally, vertically or diagonally.
Grid control: Click the mouse button at the selected cell to change the content of the cell. More details about grid control are at the help page.