Endpoints

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Rules[edit]

Endpoints Example and Solution.png

Place the given pieces into each cell of the grid, so that each piece appears exactly once in each row and column. Every “blind end“ of a line (an edge that is not connected to another line) is marked with a circle.

(Rules and example from WPC 2016 IB)

History of the puzzle[edit]

First appeared on WPC 2016/Round 11, an "innovative" round under the name "Railroads". The author of the puzzle was Matej Uher (Slovakia). Later appeared on Puzzle GP 2019 Round 7 under the name "Endpoints", possibly to avoid confusion with Railroad Tracks, a puzzle also called Railroads.

Appearances in the past WPCs[edit]