Artisanal Sudoku, Volume 145

1. Parmesan

• Normal sudoku rules apply (fill each row, column, and 3x3 box with the digits 1-9 once each), and all clues are standard.

• Killer cages: the sum of the digits inside each cage is equal to the small number in the top left corner.

• Arrows: the sum of the digits along an arrow is equal to the digit in the connected circle, and these digits can repeat if allowed by other rules.

• Digits in cells separated by a white dot are consecutive.

• Very rough difficulty estimate: 4/10

Play online: SudokuPad | unshaded | F-Puzzles

New to variant sudoku? Check out these beginner-friendly guides to killer cages and other popular rulesets.

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2. Rising Temperatures, by Blobz

• Normal sudoku rules apply (fill each row, column, and 3x3 box with the digits 1-9 once each), and all clues are standard.

• Killer cages: the sum of the digits inside each cage is equal to the small number in the top left corner.

• Thermometers: digits on thermometers increase from the bulb.

• Renban lines: purple lines contain a non-repeating set of consecutive digits in any order.

• Very rough difficulty estimate: 6/10

Play online: SudokuPad | F-Puzzles

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Thanks so much to BremSter for pre-recording a solve of this next puzzle, which you can find here. I’ve said it before, but if you like the puzzles in this newsletter, I’m sure you’ll also like the ones on BremSter’s channel, so please check it out 😃

3. Irrigation

• Normal sudoku rules apply (fill each row, column, and 3x3 box with the digits 1-9 once each), and all clues are standard.

• Arrows: the sum of the digits along an arrow is equal to the digit in the connected circle, and these digits can repeat if allowed by other rules.

• Palindromes: the (thicker) gray line is a palindrome, which contain the same sequence of digits in either direction.

• Quadruple circles: a digit inside a white circle must appear in at least one of the four cells surrounding that circle.

• Digits in cells separated by a (smaller) white dot are consecutive.

• Very rough difficulty estimates: 8/10, 6/10

Play online: SudokuPad | F-Puzzles

Extra clues: SudokuPad | F-Puzzles

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Some other puzzles I enjoyed this week:

• Entropic Circuit, by sujoyku

• Second Breakfast, by 99%Sneaky

• Leftovers, by Matt Tressel
  This is a puzzle that was set in a deliberate attempt to imitate my “style”, and the result is exceptional. I’m honored to be even tangentially associated with it.

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This week’s meta-description:
I’ve tried to find ways to make multiples of 45 special, so maybe Volume 145 should get similar treatment? I don’t know. Look, I think the puzzles in this one are pretty good, but not every number gets a trophy.

For premium subscribers, hints and two more bonus puzzles are below. If you like negative constraints, this would be a good week to sign up.