Rules
Standard Sudoku Rules apply.
159 indexing: Each cell in column 1 indicates the location of the 1 in its row. Similarly entries in column 5 index the locations of 5s, and likewise for column 9 and the 9s. For example, if r4c1 is 7, then r4c7 is 1.
Variant sandwich rules: Digits 1, 5, and 9 are crusts. A clue outside the grid gives the sum of the non-crust digits between the two closest crusts to that clue in its row or column.
Solution code: Enter row 1.
on 1. June 2024, 12:33 by jadezki
I had to restart three (!) times because math didn't math but I loved the solve! Thank You!
on 14. April 2024, 20:15 by Ambrose
(Another one I set quite a while ago, enjoy!)
on 14. April 2024, 10:58 by Snaques
Very cool variant of my favorite 159 puzzle. Thanks Ambrose!
on 14. April 2024, 09:16 by EmX68
This is a remarkable puzzle. I didn't expect the interaction between the sandwich and 159 hints to do so much. Thanks for setting!