Fraudulent Boxes
(Published on 9. February 2023, 20:25 by Al Fresco)
Normal-ish sudoku rules apply. However four of the 3x3 boxes are fraudulent and should be completely blacked out from the grid. It is up to the solver to work out which boxes are fake. There should be twelve sets of 1-9 in the completed grid. A set in each row, column and real box.
A couple of examples below to show how the boxes could be arranged in the completed grid.
Play on line
CtC please turn off the conflict checker
Solution code: The digits in row 7
Comments
on 19. February 2023, 14:17 by Al Fresco
Thank you 10feet and Jlrice2 for the nice feedback. I've changed the difficulty to 3 stars and added a Penpa link. Penpa does a much better job of covering the fake digits/boxes.
on 11. February 2023, 19:17 by 10feet
This is a well constructed and inventive puzzle. Perhaps with repetition it gets easier, but I found this to be more like 3.5 for difficulty.
on 10. February 2023, 01:14 by Jlrice2
It is an interesting puzzle. Once i found the break in it went pretty smoothly. Took me a while to get a hang of how to approach the start though.
