Link: https://f-puzzles.com/?id=yoh8yo5z
Solve on Sudoku.Pad: https://tinypuz.com/yv7dfaba
Normal Sudoku rules apply.
The grey "C"-line (explained for the colour blind: rows 1-4) is palindromic, ie. the digits from each end of the line are identical.
Digits on the branching arrow "T" (rows 3-6) sum to the digit in the arrow's circle. (The arrow branches to look like a "T", but all parts of the arrow add to the sum in the circle!)
The green "C"-line (rows 5-8) is a German Whispers line, ie. neighbouring digits have a difference of at least 5.
The yellow line (from row 1 column 5 clockwise around the grid to row 6 column 1) is entropic, ie. the order of 3 adjacent digits is identical (one is low, one is middle, one is high, but not necessarily in that order).
The pink lines (row 8 columns 3-5; row 4 columns 7-8 + rows 5-6 column 9 sharing the space of the entropic line, sorry) are Renban lines, ie. they consist of consecutive digits in any order.
Digits on a thermo (rows 5-4) must rise from the bulb.
Digits on the negative diagonal (row 1 column 1 to row 9 column 9) must not repeat.
Digits on a grey square are even. Not all possible squares are given
Let's get cracking!
Solution code: What is the sum of all digits on the letters CTC?
on 23. December 2023, 14:10 by pms_headache
Very nice puzzle. Harder than three stars, I think, based on the number of solves. Took me several tries to break through. I hope Simon gives it a try!
on 19. December 2023, 21:03 by Unterstadt96
Unklarheit beim Pfeil (hoffentlich) ausgeräumt.
Arrow's ambiguity hopefully clarified in the rules.
on 19. December 2023, 18:47 by sujoyku
Möglicherweise ist eine einzige Summe gemeint, sodass der Pfeil nur eine Spitze haben sollte?
on 19. December 2023, 18:42 by SKORP17
der T-Pfeil kann nur 1 Spitze haben , da er ansonsten unmöglich wäre!