The puzzle is also known as "Doors" or "Office". It consists of a rectangular grid with numbers in some cells. You must draw borders between certain cells so that each number shows how many cells can be seen horizontally and vertically from the numbered cell, excluding itself. The view stops when it hits either a drawn border or the edge of the puzzle.
Additionally, no isolated areas should be formed — all cells must remain connected, forming a single continuous area.
Pro? Record a master class and get V.I.P.
