Normal sudoku rules apply. Standard palindrome, German whispers, between line, thermo, renban, and kropki (no negative constraint) rules apply. (Digits along the palindrome lines must read the same forward and backwards. Adjacent digits on a green whispers line must have a difference of five or greater. Digits along a between line must be strictly between the digits on the circled ends of the line. The digits on the line can be in any order, and may repeat when allowed by the other rules. Digits on a thermometer must strictly increase from the bulb end. Digits on a purple renban line must be consecutive, can be in any order, and must not repeat. Neighboring digits marked with a white Kropki dot are consecutive. Neighboring digits marked with a black Kropki dot have a 2 to 1 ratio. Not all dots are given.) I think this puzzle is 2 stars out of 5 for difficulty for many solvers. As always, comments welcome!
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Solution code: First row of puzzle, and fourth column of puzzle (read top to bottom). Enter as a string of 18 digits, no spaces.
on 14. August 2022, 22:32 by rugbyrefmd
It is amazing to see the growth in miracle puzzles, those having no given digits. Congratulations on discovering another intriguing example, PDN.
** Actually, with all of the variants available, it does not (in my humble view) require a miracle to set a puzzle with no givens. At least when Simon from CTC uses the term miracle, he is referring to the perception, on first glance, that even with the variants in the puzzle, there appears to be no way to solve it! LOL. Anyway, thanks so much for the solve! :-)