The Greatest Pseudocell
(Published on 16. August 2026, 13:40 by Prof.Dori)
The Greatest Pseudocell
Rules:
Normal sudoku rules apply. Every row, column and box contains exactly one 'pseudo cell'. The nine pseudo cells contain a complete set of the digits 1-9. The real value of a pseudo cell is calculated by adding its row number to its column number. Eg: if there is a pseudo cell in r5c6, it has the value of 11 (regardless of which digit appears in that cell). On each line, there is exactly one cell whose value is greater than the sum of any other two cells on that line.
Click here to start the puzzle
Solution code: Row 5.
Comments
on 28. August 2026, 09:19 by simontherry
For me this was extremely hard, took 3 hours due to some logical mistakes... 5* for me
on 21. August 2026, 16:25 by NPlusOne
Awesome puzzle! Really cool interactions between the pseudocells and greatest lines.
on 20. August 2026, 15:14 by Snookerfan
Great! Top notch setting. I am still getting used to the greatest line rule, which confuses me from time to time, but I will try to internalize it for the future, because the logic is so beautiful! Thanks
on 20. August 2026, 00:27 by Exigus
Fantastic, thanks!
on 17. August 2026, 18:31 by PrissyP
That was a lot of fun! The Pseudocells interacted perfectly with the greatest line constraint all the way through the puzzle. Thanks for that
on 16. August 2026, 20:32 by Gunkan
Fascinating from start to end
on 16. August 2026, 20:02 by Fool on Hill
Some lovely ideas there - enjoyed solving
on 16. August 2026, 15:02 by amirs
Very nicely constructed, great fun
