Knossos is a variation of Cell Block (Shikaku) and is probably the more interesting puzzle. The difference is that the rooms in Knossos do not necessarily have to form rectangles.

Knossos also provides more options than Cell Block when it comes to determining the level of difficulty, although grid-size is still the main factor.

The puzzle was designed and named after the remarkable labyrinthine Minoan palace on Crete by the latterday Daedalus and Icarus team of Philipp and Valentin Hübner.


Each number must be contained in its own room. Each number tells you how many wall sections are required to construct that room. A wall section is a horizontal or vertical line between two dots. Rooms fill the entire grid.

Related Puzzles

Cell Block