S, as in Sudoku
1 = ONE
Inspiriation for this type comes from Sudoku Cup 3.
Solve online in F-Puzzles(thanks Krokant!)
Apply classic sudoku rules. In the cells with red letters, a digit can only be placed if it contains that letter when spelled in English.
2 = TWO
3 = THREE
4 = FOUR
5 = FIVE
6 = SIX
7 = SEVEN
8 = EIGHT
9 = NINE
Solution code: Row 2, followed by column 9.
on 3. November 2021, 05:16 by Richard
Added link for online solving. Thx Krokant!
on 14. March 2021, 19:28 by Krokant
The Penpa link didn't work for me, so I tried F-Puzzles instead: https://f-puzzles.com/?id=yfao4tdl
on 27. January 2021, 07:03 by Mufasa
Short URL of PENPA edit.
shorturl.at/mzX24