Normal sudoku rules apply. The digits 1 - 9 need to show up once in each column row and box.
Palindrome - Digits on a palindrome are the same forward and backwards. (eg. 48384)
Sandwich - The number outside the row or column is the sandwich number. It represents the sum of the digits between the 1 and the 9 in that row or column.
Thermo - Digits on a thermo need to increase from the bulb
Click on the image to play on sudoku pad.
Solution code: Bottom row
on 22. August 2026, 14:36 by OfishilNasser
Absolute joy to solve from beginning to end
on 22. August 2026, 09:37 by Peteronium
Smooth, fun and very easy
on 22. August 2026, 04:38 by ggwp
usually hate sandwich sums because my brain cannot wrap its way around it but this was so much fun!!! 10/10!!!
on 22. August 2026, 04:12 by macintux
Very easy, very fast, thanks.
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