Three Lefts Make a Right
(Published on 6. September 2024, 23:38 by yanggang)
Normal sudoku rules apply.
Line: Draw a line through the center of some cells in the grid. The line moves orthogonally, entering the grid in R9C1 and exiting at R4C1 as indicated by the red arrows.
Digits on the line determine the direction of the line:
- On a 1, 4 or 7 the line turns left.
- On a 2, 5 or 8 the line continues straight.
- On a 3, 6 or 9 the line turns right.
This applies for every cell the line passes through including the first and last cells.
Renban: The box borders divide the line into segments. If the line enters a box multiple times, these count as separate segments. Each segment acts as a renban line: the cells on a segment form a consecutive set of digits, not necessarily in order.
Circles and Squares: A digit in a circle is on the line and counts the number of cells in its 3x3 box that the line passes through (including itself). A digit in a square is not on the line and counts the number of cells in its 3x3 box that the line doesn't pass through (including itself). Not all such circles and squares are necessarily given.
Example for reference:
Solution code: Row 4
Comments
on 7. September 2024, 01:35 by cybers
A mind-bender, some pun intended. The renban + modular movement rules together in particular were very fun to pick apart and led to some very cool interactions/hidden secrets within the puzzle. The placement of the clues was also fantastic. Thank you for setting!
