Through the fog with zero determination
(Published on 14. January 2025, 21:13 by alhobj)
Normal sudoku rules apply: each row, column, and 3x3 box must contain the digits 1 to 9.
Dynamic fog: The grid starts covered in fog. Entering the correct digit in a cell may lift the fog from that cell and may reveal additional cells elsewhere in the grid.
Determinants: A large circle between four cells indicates that the products of the two diagonals are equal (e.g., for a circle between cells R1C1, R2C1, R1C2, and R2C2, R1C1 × R2C2 = R2C1 × R1C2). Or in math terms: the determinant of the 2x2 matrix formed by those cells is zero. Other knowledge of matrices or determinants is not required to solve the puzzle.
German Whispers: Digits along a green line must differ by at least 5.
Renban: Digits on a magenta renban form a set of non-repeating, consecutive digits in any order.
CTC Link: https://sudokupad.app/t9d2dze27s
Solution code: Column 9 top to bottom
Comments
on 17. February 2025, 22:30 by Friedhelm
I took some time to handle the ruleset. Then it was great fun. Thanks!
on 16. January 2025, 14:50 by whtshername
Nice sudoku!
It would be great if correct digits would at least light up their own cell (especially in the end)
on 15. January 2025, 08:52 by alhobj
Updated the explanation of the rules based on the hidden comments
on 14. January 2025, 23:18 by VitP
Determinante ??
Nur Physiker sind hier erlaubt !
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Thank you for your comment! Whops, I am a chemist with a love for mathematics and IT. The best thing I can say about physics is that it has potential
on 14. January 2025, 21:23 by alhobj
Fixed grammar
