Draw a single closed loop through the grid without the loop crossing itself. The cells with a thick border are not part of the loop, but have the following requirements: white cells must be inside the loop, black cells must be outside the loop and any gray cell may be either inside or outside the loop. A digit in a cell with an arrow shows the amount of times the loop crosses a cell border in the given direction.
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Lösungscode: Column numbers (from left to right) in which the loop turns in rows 2, 7 and 9 (first row 2, then row 7, then row 9).
am 28. Juli 2021, 17:50 Uhr von Mark Sweep
Updated tags
am 3. Mai 2021, 14:08 Uhr von MagnusJosefsson
Finally managed to complete this impressive and challenging puzzle. I found that I really had to be patient and strict with my logic to stay on track. Great puzzle!
--- Thank you! Great job on overcoming the challenge. Really appreciate your comments.
am 22. Januar 2021, 21:57 Uhr von Mark Sweep
Thanks Dandelo for clarifying it to jessica6. Sorry about the confusion. I have used your suggestion to improve the solution code description.
am 22. Januar 2021, 21:55 Uhr von Mark Sweep
Improved clarity of solution code description
am 22. Januar 2021, 18:43 Uhr von jessica6
Thanks Dandelo for clarification of the solution code.
It's not "column numbers, in which the loop turns from left to right", but "column numbers in which the loop turns, from left to right"
am 22. Januar 2021, 18:30 Uhr von Dandelo
Maybe the following description is better, since you could misunderstand that 'left/right' refers to 'turns':
Column numbers (from left to right) in which the loop turns in rows 2, 7 and 9 (first row 2, then row 7, then row 9).
am 22. Januar 2021, 16:43 Uhr von jessica6
I have a solution. What does "from left to right" mean?