The puzzles below are current daily and contest puzzles. These puzzles are competitive and you have to register to solve them and participate in the 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 the daily 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: Andrey Bogdanov
Draw a single continuous loop in the grid using horizontal and vertical line segments so that the loop visits every square exactly once. Each cell belongs to one of two types: those where line goes straight and those where line turns. Dots are located between all horizontally neighboring cells of the same type.
Grid control: To draw a line press the mouse button at a start cell and move mouse to another cell holding the button. More details about grid control are at the help page.
Author: GD
Draw a single continuous loop in the grid using horizontal and vertical line segments so that the loop visits every square exactly once. Each cell belongs to one of two types: those where line goes straight and those where line turns. Dots are located between all horizontally neighboring cells of the same type.
Grid control: To draw a line press the mouse button at a start cell and move mouse to another cell holding the button. More details about grid control are at the help page.