| Top rating improvement of the month | |
|---|---|
| Sigmit | 363 |
| shedarshian | 359 |
| Shuohang | 263 |
| xxuurruuii | 240 |
| MoFan | 235 |
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: Pi
Draw few rectangular loops through the centers of unshaded cell so that exactly one unshaded cell is unused and all other unshaded cells are used. The sides of different rectangles may intersect each other, but not turn at their intersections or otherwise overlap.
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: Sashika
Draw few rectangular loops through the centers of unshaded cell so that exactly one unshaded cell is unused and all other unshaded cells are used. The sides of different rectangles may intersect each other, but not turn at their intersections or otherwise overlap.
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.