Normal Sudoku rules apply. The number in the dot on a brown diamond is the sum of the adjacent digits.
Solution code: Row 8 followed by column 7, no spaces
on 22. July 2022, 22:31 by wenchang
nice rule! https://youtu.be/UpyI6I89ZQo
on 20. July 2022, 22:51 by Christounet
Very nice ! The first part is a very good scanning ability testing. Thanks.
on 20. July 2022, 13:41 by peacherwu2
I wonder why an elegant rule like this didn't catch up?!
on 19. July 2022, 20:54 by Onkel_Dagobert
What a neat idea! Thank you so much for sharing.
on 19. July 2022, 18:29 by Piatato
Nice and smooth one :-)
on 19. July 2022, 14:06 by antiknight
I really like the logic throughout the puzzle ! Thanks