Logic Masters Deutschland e.V.

Queens puzzle

(Published on 4. March 2026, 22:02 by Terttu5)

The Queens puzzle requires placing a single crown (queen) into every row, column, and distinct colored region of a grid. Queens cannot occupy adjacent cells, including diagonals.

-Each row and column contains exactly one queen.
-Each color-coded region contains exactly one queen.
-Queens cannot be placed in adjacent cells, horizontally, vertically, or diagonally.

You can play the puzzle in Penpa+. I know that everyone doesn't like the site. If you have better site to recommend I can create the puzzle there too. (Don't worry about the name in Penpa+, it is meant for use in different situation.)

Solution code: Write the column of each queen on every row from top to bottom. (no spaces)


Solved by mellowrobinson, Jasperrr, zonny, tryote, Felis_Timon, trashghost, puzzler05, webato, mattnburris, Tacosian, saskia-daniela, TheZwierz, JustinTucker, Jesper, Leyan, Nylimb
Full list

Comments

on 5. March 2026, 10:33 by Terttu5
Sorry for the solution code. I didn't really think it through! Thanks for the comments on the puzzle and for firespire for the tips!

on 5. March 2026, 08:04 by zonny
The solution code is a pain!

on 5. March 2026, 07:25 by firespire
It can be played in Sudokupad without answer check if people know the interface better.
English - https://sudokupad.app/lij2rc9nfm
Finnish - https://sudokupad.app/rf3dm8n01w

(Converted using https://marktekfan.github.io/sudokupad-penpa-import/ )

I think it's ok in Penpa. If people need to use lines to divide the grid the option is called "Edge" and to get back to the stars you push "Shape".

Puzz.link does have lots of tools for setting different puzzle types, one of which is starbattle but when solving people can't draw dividing lines and would loose progress if they ever refreshed the page so might not be suitable for such large puzzles.

on 4. March 2026, 23:55 by Jasperrr
Alright puzzle but writing the solution code was a pain haha

Difficulty:2
Rating:90 %
Solved:16 times
Observed:1 times
ID:000RQZ

Enter solution

Solution code:

Login