Logic Masters Deutschland e.V.

Salix

(Published on 2. February 2026, 22:26 by Jay Dyer)

Rules

  • Normal sudoku rules apply.
  • Shade the entire grid with two colours, so that each colour forms a single connected area and no 2x2 area is entirely one colour.
  • A digit in a cell with an arrow equals the sum of the first N digits of the other colour in the arrow's direction, where N is first digit of the other colour in that direction (the arrow must point to at least N cells of the other colour). Two arrows in the same cell are treated as independent clues.

Example:

Play online in Sudokupad.

Solution code: Row 4


Solved by gdc, SKORP17, LuridGraph, Siebuhh, beansontoast_, cornish-john, sehringdipity, Exigus, efnenu, Silverscree, tuturitu, asynchronous, chinesemaster, smckinley, zeniko, Elliott810, totem_mapr, ... joelagibbs, dzamie, pizza_troll, AKernel, Vodakhan , Lyouke, Major314, HopperSmith92, Chelo, lianarox, Tompzini, Jesper, widjo, damo_89, Crusader175, PuzzleJohn, ZornsLemon, BlacknWhite, Altynbek
Full list

Comments

on 9. February 2026, 07:52 by Crusader175
Need to be careful while solving, but it was a fun puzzle!

on 4. February 2026, 14:37 by HopperSmith92
Very nice puzzle.The start is a bit difficult but very interesting.Love it

on 3. February 2026, 19:52 by dzamie
A little intimidating at first, but surprisingly fun! Definitely glad I'm more familiar with YY by now, for help coloring the borders.

on 3. February 2026, 18:37 by Qodec
What a treat. Excellent stuff.

on 3. February 2026, 18:16 by Snookerfan
Very nice! As usual there is some meta stuff to be discovered and then you find the perfect setup for a puzzle with this original ruleset. Thanks

on 3. February 2026, 17:23 by Franjo
Thank you very much for creating and sharing another wonderful YY-hybrid with a brilliant break-in.

on 3. February 2026, 13:52 by SirThomas
Nice puzzle! The start is quite difficult, but then everything follows smoothly

on 3. February 2026, 11:19 by bboom
Very cool, I like that there are a lot of slightly different deductions to make, so each new insight gets you some progress, but doesn't suddenly solve the whole thing.

on 3. February 2026, 09:50 by Piatato
Very interesting and fun, thanks!

on 3. February 2026, 06:45 by smckinley
Excellent, thank you!

on 3. February 2026, 03:59 by Silverscree
Pulling the X-sum inside the grid like this was a lovely way of decreasing the complexity, but including diagonal sums and the ambiguity of the shading pushed that complexity right back up to the sweet spot. I'm glad you're back to setting after that break, it's always a treat!

on 3. February 2026, 02:31 by Exigus
Fantastic break-in and once you figure out the basics it flows nicely from there. Thanks!

Difficulty:3
Rating:95 %
Solved:49 times
Observed:2 times
ID:000R9W

Puzzle variant Online solving tool

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Solution code:

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