Dark Matter
(Published on 19. November 2025, 23:31 by 99%Sneaky)
Rules:
Normal sudoku rules apply.
Clue Types:
Digits in cages may not repeat and sum to the small number in the top left corner (if given).
Digits along purple lines form a non-repeating consecutive set.
Digits along arrows sum to the digit in the attached circle.
Digits along thermometers must continuously increase from the bulb end to the tip.
Dark Matter:
Each of the clue types listed above is called an "expanse" (note: for the arrow circle with two arrows, all 5 of those cells count as a single expanse). Each cell, or group of orthogonally connected cells, which contains no clues is called a "void". An edge between an expanse cell and a void cell is called a "boundary". To maintain balance, each void must share a sum with at least one of the expanses with which it shares a boundary. Multiple voids may share their sum with the same expanse, and a void may share its sum with multiple expanses.
For example, the void R8C1/R9C1/R9C2 must share a sum with the expanse (arrow) which appears in R7C1.
Play on SudokuPad/CTC App
Normal sudoku rules apply.
Clue Types:
Digits in cages may not repeat and sum to the small number in the top left corner (if given).
Digits along purple lines form a non-repeating consecutive set.
Digits along arrows sum to the digit in the attached circle.
Digits along thermometers must continuously increase from the bulb end to the tip.
Dark Matter:
Each of the clue types listed above is called an "expanse" (note: for the arrow circle with two arrows, all 5 of those cells count as a single expanse). Each cell, or group of orthogonally connected cells, which contains no clues is called a "void". An edge between an expanse cell and a void cell is called a "boundary". To maintain balance, each void must share a sum with at least one of the expanses with which it shares a boundary. Multiple voids may share their sum with the same expanse, and a void may share its sum with multiple expanses.
For example, the void R8C1/R9C1/R9C2 must share a sum with the expanse (arrow) which appears in R7C1.
Play on SudokuPad/CTC App
Solution code: Row 9
Solved by tuturitu, pms_headache
Comments
on 22. November 2025, 16:47 by pms_headache
Weird rule set with surprising deductions. Thx.
