Russian Field

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Rules[edit]

Dissection by Vertices Example.png Dissection by Vertices Example Solution.png

Divide the grid in N regions of different sizes between 1 and N. All the vertices where 3 borders of regions meet are given. There are no vertices where 4 borders meet.

(Rules (modified) and example (N = 5) from WPC 2018 IB)

History of the puzzle[edit]

Invented by Yukari Nishiyama (Japan) in 2001. First appeared on Internet Puzzler.[1] Originally titled 1から8分割 (Dissection from 1 to 8). As the name suggests, N was always 8 and the grid was always 6x6.

The name of this article is based on a puzzle from WPC 2012/Part 8.

Appearances in the WPC[edit]

References[edit]