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Shadoo 220
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kirarin 192
Alpha 183
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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.

Loop and Bounds

Author: Anurag Sahay

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Draw a single continuous loop in the grid using horizontal and vertical line segments so that the loop visits every cell exactly once. It should not cross or overlap itself. The length of a loop segment between two numbers should be strictly between the values of these numbers.

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.

Even/Odd Fence

Author: Andrey Bogdanov

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Draw a single continuous loop along the gridlines in the diagram. If a cell is shaded, then even number (0, 2 or 4) of the cell's edges are used by the path. If a cell is not shaded, then odd number (1 or 3) of the cell's edges are used by the path. The path cannot cross or touch itself.

Example puzzle

Grid control: To draw a fence click at the cell edge or move mouse along the line holding the button. You can also put auxiliary marks by clicking at cells. More details about grid control are at the help page.