Dutch Flat Mates: Kroopki Doots
(Published on 18. September 2024, 11:30 by damo_89)
I am delighted to be guest setter on the weekly Dutch Flat Mates series by Flinty. This combines Dutch Flat Mates with Kropki dots and doots.
- Normal Sudoku rules apply.: Normal sudoku rules apply: Place the digits 1 to 9 once each in every row, column and 3x3 box
- Dutch Flats: Every 5 in the grid must have a 1 directly above it or a 9 directly below it. It may have both, but it doesn't need both.
- Kropki Dots: Digits on a white dot are consecutive. Digits on a black dot are in a 1 to 2 ratio.
- Kroopki Doots: Doots are straight lines between sets of cells. A white doot separates two sets of cells whose respective sums are consecutive. A black doot separates two sets of cells whose respective sums are in a 1:2 ratio. For example, R1C1 + R1C2 is double or half R2C1 + R2C2 because of the black doot between them.
- Not all dots or doots are necessarily given
Hint to Start
The sum of all the digits on a black dot or a black doot is divisible by 3
Hint to End
Consider where 5s go and what that means for its flatmate
Previous puzzles in the Dutch Flat Mates series:
- #01 - 18 Oct 23 - Classic
- #02 - 25 Oct 23 - Thermometers
- #03 - 01 Nov 23 - German Whispers
- #04 - 08 Nov 23 - Region Sum Lines
- #05 - 15 Nov 23 - Sandwich Sums
- #06 - 22 Nov 23 - Little Killer
- #07 - 29 Nov 23 - Kropki
- #08 - 05 Dec 23 - Zipper Lines
- #09 - 12 Dec 23 - Renban - By GoodCity
- #10 - 19 Dec 23 - Nabner - By GoodCity
- #11 - 26 Dec 23 - Skyscrapers - By GoodCity
- #12 - 03 Jan 24 - Dutch Whispers
- #13 - 10 Jan 24 - Killer Cages
- #14 - 17 Jan 24 - Arrows
- #15 - 24 Jan 24 - Ten Lines
- #16 - 31 Jan 24 - 159 Index and Even - By GoodCity
- #17 - 07 Feb 24 - Friendly Cells
- #18 - 14 Feb 24 - Quads
- #19 - 21 Feb 24 - Silent Killer - By GoodCity
- #20 - 28 Feb 24 - XV and Equality
- #21 - 06 Mar 24 - X-Sums
- #22 - 13 Mar 24 - Numbered Rooms - By GoodCity
- #23 - 20 Mar 24 - Diagonal X-Sums
- #24 - 27 Mar 24 - Yin Yang (Neighborhoods) - By Palpot
- #25 - 03 Apr 24 - Hit Points
- #26 - 10 Apr 24 - Counting Circles
- #27 - 17 Apr 24 - XY Difference - By GoodCity
- #28 - 24 Apr 24 - Double Sandwich Sums
- #29 - 01 May 24 - Foggy Knights
- #30 - 08 May 24 - Look and Say Little Killer
- #31 - 15 May 24 - Slingshot - By GoodCity
- #32 - 22 May 24 - 258 Index and Odd
- #33 - 29 May 24 - Rellik
- #34 - 05 Jun 24 - Search 9 - By Palpot
- #35 - 12 Jun 24 - Diagonal Outside
- #36 - 19 Jun 24 - Entropic Snake - Collab with Palpot
- #37 - 26 Jun 24 - Rossini - By GoodCity
- #38 - 03 Jul 24 - Pointer Arrows
- #39 - 10 Jul 24 - Same Difference - by Marty Sears
- #40 - 17 Jul 24 - Battenburg and Average Arrows
- #41 - 24 Jul 24 - Omnipotent Lines - by Sujoyku
- #42 - 31 Jul 24 - Modular Snake
- #43 - 7 Aug 24 - Hot and Cold Lines - by Marty Sears
- #44 - 14 Aug 24 - Minmax Quads - by Sujoyku
- #45 - 21 Aug 24 - Quad Sums - By GoodCity
- #46 - 28 Aug 24 - Entropic Whispers - by gdc
- #47 - 4 Sep 24 - Thripper Lines
- #48 - 11 Sep 24 - Index Lines - by Marty Sears
Solution code: Column 9
Comments
on 18. December 2024, 02:44 by Frank Puzzles
https://youtu.be/oVuLDM2pBNI
Here's my solve of your puzzle. It took me a long time and as one of viewers commented, I probably should have taken the dutch flats constraints into more consideration earlier.
Still, a fun solve!
on 18. September 2024, 15:50 by marcmees
Vers nice .Thanks
on 18. September 2024, 15:01 by sujoyku
Thank you for this wonderful flat mates puzzle, damo_89! I loved the doots and their interactions with the flat mates. Very nice set-up!
on 18. September 2024, 14:37 by Flinty
Thank you for a wonderful addition to the series. :)
