Land and Sea

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Land and Sea Example.png Land and Sea Example Solution.png

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]