Logic Masters Deutschland e.V.

a little too friendly @>‑‑>‑‑

(Published on 29. May 2026, 00:04 by AaronH)

announcement: back from a little time off, here’s this week’s puzzle. see you next week! B-)
solve in sudokupad

rules

normal 6x6 sudoku rules apply: fill the grid with digits 1-6 so that no digit repeats in any row, column, or box.

there is a negative constraint in this puzzle

  • v sums: a v between orthogonally adjacent cells indicates the digits sum to 5. all vs are given

all variant clues follow their standard meanings; full descriptions are provided below.

  • friendly cells: a heart cell must contain either its row-, column- or box-number.
  • black kropki dots: a black dot indicates one digit is exactly double the other. not all dots are given.

walkthrough video

other puzzles

if you enjoyed this, feel free to check out some of my other puzzles:

Solution code: row 5, left to right

Last changed on on 13. July 2026, 05:11

Solved by stranac, firespire, StevenS, mattnburris, thomamas, iEtsh, chocobonight, Ftown778, ratolibre, RickiFerrara, Zzzzz..., balpha, Mozart40, WasabiKoala, 3ColorTheorem, TheJRMY, Yahhavp, snowbaby, ... Joozd, gafl, pmatos, Jastucreudo, clapslat, stafen, Titatovenoor, flaemmchen, Gilma, Reina, bhambells, BlackApolloX, timww572, Bashy99, pepe74287, david.woitkowski, Rollo, IDEK, RailMan
Full list

Comments

on 2. June 2026, 15:37 by Anthony
That was very fun to break through. It took pencilmarking every cell for me to finally realize just how powerful the negative constraint is in this puzzle.

on 30. May 2026, 08:29 by SanFranSam
Friendly enough for a 1*. ;)

on 29. May 2026, 23:11 by AaronH
Added walkthrough video link

on 29. May 2026, 22:30 by damo_89
Hardest of the bunch so far IMO, the negative constraint does more than I expected

Last changed on 29. May 2026, 23:19

on 29. May 2026, 15:29 by JVA
I don't know if these are getting harder or I'm just not picking up the tricks to them

AaronH: I think the later ones do get a little trickier. There’s a walkthrough video linked on the page for today’s puzzle if you’re interested

Thank you, I'll check it out

Difficulty:1
Rating:90 %
Solved:100 times
Observed:1 times
ID:000SVK

Variant combination

Enter solution

Solution code:

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