Place the digits 1-9 once in each row, column and box.
An inequality sign points to the lower digit.
Digits may not repeat on the blue diagonals.
Digits do not repeat in cages.
Each cage contains a unique set of digits.
When the sum of a cage is a prime, the cage contains no primes.
When the sum of a cage is not a prime, the cage contains only primes.
Solution code: Please enter the digits in row 6.
on 24. June 2024, 00:11 by Basil
I made a second version of this puzzle.
https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=000IKQ
on 24. June 2024, 00:09 by Basil
Thanks. It was fun to watch someone solve my puzzle.
on 23. June 2024, 21:46 by fractalminding
I recommended this sudoku to autor of a sudoku channel on youtube. He made video with solution. But video in russian. https://youtu.be/XZSk9UcgZFg
on 14. June 2024, 13:20 by Ragna
Very tricky! Fun puzzle. Thank you for sharing. :-))
on 8. June 2024, 21:52 by fractalminding
This is an amazing sudoku. Cool idea with prime numbers. There was tension until the last digits. Although, perhaps, I was not following the main solution path that the author had planned. I am very impressed. Thank you for your hard work. I know that it is very difficult to create such a thing.
on 8. June 2024, 16:54 by OutOfMyMindBRB
Beautiful setting and interesting constraints - fun and challenging solve - thanks :-)