It Began With a Zippy Smile
(Published on 31. October 2023, 14:46 by gdc)
Another Zipper Lines puzzle (ruleset from Jaze) with a new opening idea. Really glad the ruleset is also catching on with other constructors now. See below for links to zipper puzzles from Marty Sears, Viking Prime, The Pedalling Pianist and Kitty Trouble.
- Normal sudoku rules apply.
- Digits an equal distance from the center of a lavender 'Zipper Line' must sum to the digit in the middle of that line.
Play online: CtC, CtC (brighter lines), f-puzzles
Example Puzzle
Here is a 4 by 4 example from Jaze (left) and it's solution (right). Notice how the ends of each line sum to the digit in the center of the line. Additionally, the long line also contains two more sums 4=1+3=1+3=2+2. You can play the example here.
Do you want to solve more?
- A Totally Balanced Approach by gdc (LMD, CtC)
- Happly Little Zippers by gdc (LMD, CtC)
- Properly Sized by Jaze (Discord Puzzle Archive)
- Zippin' Me Softly by gdc (LMD, CtC)
- Incomplete Squares by gdc (LMD, CtC)
- Set Free by ThePedallingPianist (LMD)
- Trick Play by VikingPrime (LMD)
- Unzipped by Marty Sears (LMD)
- Zippers and Circles by Kitty Trouble (LMD)
Solution code: Row 6 (9 digits)
Comments
on 3. November 2023, 10:29 by gdc
@ViKingPrime: Thanks! That challenging deduction at the end was a deliberate choice to create a "big" transition into the "cleanup phase" of the puzzle. Looking back it would have been better to keep the ending simpler.
on 3. November 2023, 04:10 by ViKingPrime
A wonderful break-in, followed by some really satisfying logic. Tricky to spot some of the sudoku at the end but all-in-all a fantastic puzzle.
