Land and Sea

From WPC unofficial wiki


Draw a single, non-intersecting loop that passes orthogonally through all cells. The loop must not go through 3 or more white cells consecutively.

(Example from WPC 2018 IB)

History of the puzzle[edit]

Invented by Naoki Inaba (Japan) in 2006. [1] The name is a literal translation of the original "海と陸".

Appearances in the past WPCs[edit]