Diagonal Loop

From WPC unofficial wiki

Rules[edit]

Draw a single continuous loop going diagonally through some cells of the grid. The clues (including ones on the outside of the grid) show how many of the cell's corners are part of the loop. The loop cannot go through a cell with a clue.

(Rules and example from WPC 2015 IB)

History of the puzzle[edit]

Probably first appeared on WPC 2015/Round 4. Author of the puzzle was Svetlozar Stefanov (Bulgaria).

Appearances in the past WPCs[edit]