Artisanal Sudoku, Volume 240

1. Cartwheel

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

• Region sum lines: box borders divide each blue line into segments with the same sum.

• Digits in cells separated by a black dot have a 1:2 ratio.

• Very rough difficulty estimate: 4/10

Play online: SudokuPad

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

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2. Limonada

• 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.

• Digits in cells with a shaded square are even.

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

• Very rough difficulty estimate: 6/10

Play online: SudokuPad

3. Flugtag

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

• Dynamic fog: correctly placed digits clear fog from their own cell and possibly other cells.

• Palindromes: orange lines are palindromes, which contain the same sequence of digits in either direction (the centers are marked with diamonds).

• Quadruple circles: a digit inside a white circle must appear in one of the four cells surrounding that circle. Each circle contains four different digits, which are listed from smallest to largest (left to right and top to bottom).

• Very rough difficulty estimates: 8/10, 5/10

Play online: SudokuPad | version without fog

Extra clues: SudokuPad | version without fog

Some other puzzles I enjoyed this week:

• Lookskool, by Calump

• Region Sum Hitlines, by Dorlir

• Star Student, by JT

Special mention to a few (of the many) puzzles that appeared at SudokuCon:

• The SudokuCon Banner, by myself, Malrog, Marty Sears, Michael Lefkowitz, Scojo, and Tallcat. The follow-up to last year’s Quilt, this is a giant puzzle that was displayed on the wall for attendees to solve collaboratively during the event.
  Note: will not work properly in some operating systems.
  Edit: apologies, but the link that originally appeared in this post went to a version with some errors in the embedded solution. The link above has been replaced by one that goes to an updated version, where (hopefully) all issues have been resolved.

• One Fine Day, by Michael Lefkowitz, which was originally a puzzle hunt with grids scattered around the venue. I’ve solved about two-thirds of it so far and have found it absolutely brilliant, as expected.

• Marshmallow Hot Cocoa, by myself and youcancallmeMartha. I was delighted to have the chance to work with Martha on this puzzle, which was part of the “slow-solving blind date” session she hosted. The link goes to the solve video on her YouTube channel, where you can find a link to the puzzle itself in the description.

Thanks for subscribing to Artisanal Sudoku! Feedback is always appreciated, just leave a comment, reach out on Bluesky, or reply to this email. If you liked these puzzles, you probably know someone else who’d like them too, so please spread the word. If you’re interested in submitting a puzzle, click here for more information. And if you want to try more of my puzzles—many of which are tougher than the ones you’ll find here—check out my page on Logic Masters Deutschland.

This week’s meta-description:
See you all next summer in Ottawa!

For premium subscribers, hints and two more bonus puzzles are below. If you felt like the first three puzzles were sorely lacking in cages, good news!