Example puzzle

Difficulty: Rating: Comments
This is an example puzzle. You can solve it the same way as you would solve competition puzzle, but result never stored. You can reveal an answer for the puzzle by clicking "Show answer" link.

Russian Loop

Author: Andrey Bogdanov

Sorry, but your browser is not supported. Try to setup the new version.

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.

Example puzzle

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.