Refractions
(Published on 18. January 2024, 04:37 by Nell Gwyn)
- Normal sudoku: Place the digits 1 to 9 once each in every row, column, and marked 3x3 box.
- Palindrome: Digits on a gray line must be the same read backwards and forwards.
- Renban: each pink line must contain a set of consecutive digits, in any order.
- Arrow: Digits along an arrow must sum to the digit in the circle.
- Kropki: Digits on a black dot have a 1:2 ratio. Not all dots are (necessarily) given.
Solution code: rows 4 and 9
Comments
on 5. February 2026, 19:05 by snuuba
Awesome. One those puzzles where you almost feel sad once you have solved it, not because it was bad, but because it is over. Many thanks
on 24. August 2025, 18:38 by wuc
Thats a beautiful construction. Takes some time to figure things out. Love it thx.
on 10. June 2024, 10:25 by Christounet
Awesome idea and beautiful design ! Thanks :)
on 10. June 2024, 08:16 by juggler
What a fantastic puzzle! Thanks for making me get out my crayons.
on 27. January 2024, 10:07 by Crusader175
Absolutely amazing!
on 20. January 2024, 00:49 by Jolly Rogers
Brilliant idea and really well executed, loved it!
on 19. January 2024, 22:45 by jwsinclair
Really clever interactions, enjoyed this a lot!
on 19. January 2024, 18:50 by sdholmes
Very well set! Loved it!
on 19. January 2024, 17:09 by TheRiddler
Very nice puzzle!
on 19. January 2024, 11:15 by fuxia
Amazing, clever puzzle. Thank you!
on 18. January 2024, 12:52 by Myxo
Wow, brilliant puzzle!
on 18. January 2024, 11:52 by ademjaz
Very nice!
on 18. January 2024, 10:30 by by81996672
Nice puzzle,Thank you.
