Anti-knight: No two cells that are a chess knight's move apart can contain the same digit.
Anti-king: No two cells that are a chess king's move apart, i.e. touch either horizontally, vertically or diagonally, can contain the same digit.
Thermos: Thermometers in the grid contain digits that increase from the bulb end.
Palindrome: The digits along the marked diagonal line form a palindrome, i.e. they read the same from both directions along the line.
Killer cages: The sum of all numbers in a cage must match the small number printed in its corner.
Kropki dots: The two cells separated by a black dot contain digits that have a ratio of 2:1 to each other. The two cells separated by a white dot contain consecutive digits. Only two out of several possible dots are given.
Solve it here:
https://f-puzzles.com/?id=y9pnum8v
Solution code: Row 9 followed by column 9 (18 digits)
on 5. November 2021, 14:29 by Göran H
Added "Online solving tool" tag
on 24. February 2021, 15:44 by Playmaker6174
Nice and fun puzzle, I enjoy it.
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Thank you! /Göran H
on 24. February 2021, 11:28 by Göran H
(Bitte entschuldigen Sie mein Deutsch)
on 24. February 2021, 10:53 by elikap
vielen vielen Dank für das Sudoku! Wie die einzelnen Hinweise miteinander interagieren war sehr spannend!
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Danke! Ich bin froh, dass du es so gefunden hast! /Göran H
on 23. February 2021, 18:12 by SKORP17
sehr interessanter Einstieg
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Vielen Dank! /Göran H