This is the latest in my "Sandwiches Without Givens" series. Other puzzles in the series are:
The Rules:
An example using tetrominoes: Here's a complete puzzle using tetrominoes if you want something smaller to try first.
The Puzzle:
F-puzzles: Click here
CTC: Click here - (I recommend turning "Dashed Grid" on -- answer check not enabled)
Solution code: The letters and numbers from row 5 and column 10. (20 digits)
on 25. November 2023, 15:09 by RockyRoer
Added solution to CTC link.
on 22. January 2023, 01:57 by mathpesto
I had so many favorite steps throughout this solve!
on 18. January 2023, 03:51 by KNT
even more fun than the tetromino version. Thanks for these puzzles, I'd gladly solve more :-)
on 11. January 2023, 00:22 by SudokuExplorer
Lovely! I really enjoyed the logic to partition the grid. :-)
on 10. January 2023, 18:38 by RockyRoer
Fixed incorrect links.
on 10. January 2023, 18:35 by RockyRoer
Sorry for originally posting incorrect links. Things should be fixed now. Thanks for making me aware PixelP.