1590
(Published on 8. February 2022, 08:00 by twototenth)
Normal Sudoku rules apply. Digits separated by an X must sum to 10; not all X's are necessarily given. 159 rules apply: Each digit in column 1 indicates the position of 1 in the same row. (For instance, if row 6 column 1 is a 4, then row 6 column 4 is a 1.) The same is true in columns 5 and 9 regarding the digits 5 and 9, respectively.
Continuing the series of "empty 159" puzzles with X pairs this time; previous entries include thermo, German Whispers, Renban, and Lockout Lines.
Solution code: Row 7 followed by column 6, no spaces
Comments
on 1. January 2023, 14:21 by cdwg2000
Very nice!
on 30. October 2022, 12:26 by Silverstep
Very hard puzzle. For new solvers: If you keep breaking the puzzle, take another look at R2C4 -- I have solved and re-solved this puzzle thrice and I still break that cell every time.
on 14. September 2022, 11:40 by Vebby
Really enjoyed this! My favourite of the series.
on 3. March 2022, 04:54 by Playmaker6174
I was glad that I eventually catched up to this fun and fantastic series of yours! Particularly enjoyed the most this one and the renban version, but this one actually felt the most intricate and challenging compared to other ones ;)
on 9. February 2022, 10:36 by abed hawila
Very nice!
on 8. February 2022, 22:54 by twototenth
Corrected puzzle description in second paragraph.
on 8. February 2022, 19:10 by henrypijames
Tough break-in.
on 8. February 2022, 17:02 by tallcat
Another great addition to this series - although i found this one particularly tricky!
