Normal Sudoku rules apply.
The Rules:
The Puzzle:
Solution code: Row 5 followed by Column 5 (18 digits no space)
on 13. April 2023, 19:55 by NIGHTCRAULER
Quiet enjoyed it, but was at first unsure of how the prime rule works, thanks to VitP for clarifying
on 10. April 2023, 18:28 by 28righthand
Nice box 5 constraint! that was fun
on 10. April 2023, 14:12 by VitP
for ...sodah :
Each cell in box 5 must be part of AT LEAST one prime number.
You will need to milk the rest of the grid strongly before you can resolve box 5.
on 9. April 2023, 07:27 by Jodawo
Please leave a comment and rate the puzzle. If you like this puzzle please check out some of the others that I have created.
Prime Box is a new constraint I created. A Magic Square has 8 different combinations while a Prime Box has 288. The easiest way to solve Box 5, is to get as much of the rest of the puzzle to help narrow down what the possibilities are.