Spiral series #1 - Low Spiral Sudoku
(Published on 10. January 2022, 07:28 by SimiC)
Rules:
- Sudoku: place every digit from 1 to 9 once in every row, column and box
- Spiral: along the spiral starting from the top left corner of the grid, all the low digits (1, 2, 3 and 4) must appear in the alternating pattern 12341234...1234. They don't need to be adjacent. 1 must be the first low digit of the spiral and 4 must be the last low digit. A valid example of the first 9 digits (row 1), following only the spiral rule, could be 56(1)8(2)(3)97(4)
- Dots: cells separated by a white dot must contain consecutive digits (no negative constraint)
- Vs: cells separated by a V must contain digits that add up to 5 (no negative constraint)
Solution code: row 5 followed by row 7 (no spaces)
Comments
on 1. March 2022, 09:46 by Krokant
Haven't done a magic labyrinth in quite a while. Pairing it with Sudoku works quite nice. Fun!
on 11. January 2022, 05:24 by obi
Lovely puzzle, thanks! Just a note that you can work out that 4 must be the last low digit with only the information that 1 must be the first. Don't know if you included as a freebie clue or not but I worked it out before I re-read the clues anyway! Great work, really enjoyed the solve
(reply) Thank you for your feedback! I wanted to be as clear as i could with the phrasing of the rules, so i tried not to leave anything to the doubt. But of course, what you say is very true!
on 10. January 2022, 23:14 by SimiC
Added the Magic Labyrinth tag
on 10. January 2022, 21:14 by SudokuExplorer
Nice puzzle! You might want to add the "magic labyrinth" written tag (since we have those rules on the numbers 1 to 4)
(reply) Will do, thank you for letting me know
on 10. January 2022, 18:56 by Bankey
Fun puzzle. Thanks, @SimiC :-)
(reply) very happy you enjoyed it! :)
on 10. January 2022, 07:33 by SimiC
This puzzle is number 5089 in the CTC discord archive
