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Another very sparse Sudoku (Posted on 2022-09-02) Difficulty: 5 of 5
In this Sudoku, with normal rules applying, but no starting numbers are given. There are 14 diagonals indicated, each having a sum indicated by a "?". The 14 question mark values add to 178.

The figure is here:

            ?
?  __ __ __/__ __ __ __ __ __
 \|__|__|__|__|__|__|__|__|__| 
  |__|__|__|__|__|__|__|__|__|\
? |__|__|__|__|__|__|__|__|__|\?
 \|__|__|__|__|__|__|__|__|__| ?
  |__|__|__|__|__|__|__|__|__|\
? |__|__|__|__|__|__|__|__|__| ? 
 \|__|__|__|__|__|__|__|__|__|\
  |__|__|__|__|__|__|__|__|__| ?
  |__|__|__|__|__|__|__|__|__| 
  /              /  /  /  / 
 ?              ?  ?  ?  ? 

To guard against any notational confusion, you may confirm that the number of cells in each diagonal, going around CW the top, is: (3, 1, 2, 4, 6, 1, 2, 3, 4, 8, 9, 2, 5, 8). Also, note that some cells are present in two diagonals and so contribute twice to the grand sum of 178.

The puzzle is from the site: "Cracking the Cryptic"

  Submitted by Steven Lord    
Rating: 5.0000 (1 votes)
Solution: (Hide)
974251863
258639471
316784529
862973154
195426738
437518692
781362945
543197286
629845317

Explained in "Cracking the Cryptic 178" episode titled "The Most Astonishing Sudoku Ever?" constructed by Gliperal and solved by Simon Anthony. https://www.youtube.com/watch?v=Ui1hrp7rovw

Comments: ( You must be logged in to post comments.)
  Subject Author Date
thanks for the correctionSteven Lord2022-09-03 13:37:18
Some ThoughtsSolved, but not sharing. Expanded hint.Jer2022-09-03 12:53:45
re: encouragements... Error?Jer2022-09-03 11:58:30
encouragements...Steven Lord2022-09-02 13:37:41
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