Doublomania
(Published on 3. January 2023, 21:14 by lepton)
My second attempt to make interesting combination of colouring and doublers.
Rules
Sudoku: Fill every row, column and 3x3 box with the digits 1-9.
Anti-Knight: Digits a chess knight's move apart cannot contain the same digit.
Killer: Digits in a cage cannot repeat and must sum to the total in the top left corner if given.
Doublers: One cell in every row, column, and box is a doubler cell, which doubles its value in cage totals. Doublers cannot appear a chess knight's move apart from each other. Every digit 1-9 is doubled exactly once.
Solution code: Doublers read from top to bottom, 9 digits. Eg digit in row 1 doubler cell followed by digit doubled in row 2 etc.
Comments
on 14. December 2023, 14:29 by Krokant
Doublers are always hit or miss for me. They either work smoothly or I don't get anywhere at all. This time it went well. It was a lot of fun, too :)
on 6. January 2023, 19:09 by Paquet Voleur
Brilliant and very enjoyable. Thanks!
on 4. January 2023, 02:10 by asver
Such a nice puzzle, thanks!
