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 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 score table and can be attempted without registration.

Chaos

Author: Andrey Bogdanov

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

Fill in the grid with digits 1, 2, 3, 4 putting one digit per a cell. Two cells connected by the move of a chess knight cannot contain the same digit. Three identical digits cannot appear in consecutive cells horizontally, vertically or diagonally.

Example puzzle

Grid control: Click at a cell reveals the value chooser. Click at the selected value changes the state of the cell. More details about grid control are at the help page.

Chaos

Author: Andrey Bogdanov

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

Fill in the grid with digits 1, 2, 3, 4 putting one digit per a cell. Two cells connected by the move of a chess knight cannot contain the same digit. Three identical digits cannot appear in consecutive cells horizontally, vertically or diagonally.

Example puzzle

Grid control: Click at a cell reveals the value chooser. Click at the selected value changes the state of the cell. More details about grid control are at the help page.