Logic Masters Deutschland e.V.

Cross The Streams

(Published on 3. August 2024, 21:19 by Uhu)

Shade in some cells black such that the black cells are all connected to each other through their edges, and no 2x2 cell area within the grid contains all black cells.

Numbers to the left of a row or above a column represent the groups of consecutive black cells which are in that row or column. For example, a clue of "3" means the row or column has three consecutive black cells, and a clue of "3 1" means that the row or column has a group of three consecutive black cells followed by a single black cell, separated by at least one white cell.

A question mark (?) represents a group of consecutive black cells whose size is unknown (at least 1).

An asterisk (*) represents any number of unknown groups of black cells, including none at all.

You can try it here online.

Solution code: The sizes of the outer areas, starting at the top left in a clockwise direction. X for two-digit numbers. (Only the outer areas, which touch the outer border of the grid.)


Solved by Zzzyxas, uvo, KNT, Niverio, Lizzy01, CJK, ONeill, ibag, JustinTucker, Piatato, abed hawila, AnnaTh, Luigi, Agent, r45, BlackBird_6, Paletron, misko, Playmaker6174, karen_birgitta, wooferzfg, Jakhob, ffricke, Jesper, kamkam, puzzler05, ildiko, zuzanina, sandmoppe, chrisbee2, h5663454, Christounet
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Comments

on 17. October 2024, 17:29 by Christounet
Good fun ! Danke :)

on 14. September 2024, 10:07 by sandmoppe
Schön, dass du wieder Rätsel einstellst. Dieses ist zwar viel leichter als deine Roller-Coaster, von denen noch viel zu viele auf meiner To-Do-Liste stehen. Aber es hat dennoch Spass gemacht. Danke dafür.

on 14. August 2024, 04:03 by kamkam
Fun puzzle !

on 12. August 2024, 21:51 by Jesper
Sehr schön!

on 9. August 2024, 12:13 by Playmaker6174
Wow, a very fun and engaging puzzle throughout, I'm glad that I could get to solve another puzzle from you!
The difficulty got more consistent at couple of points for me but nothing felt unfair at all :)

on 5. August 2024, 14:58 by AnnaTh
Tolles Rätsel und an manchen Stellen ganz schön knifflig.

on 5. August 2024, 02:08 by Piatato
Fun puzzle, thanks!

on 4. August 2024, 15:49 by ONeill
Fun!

on 4. August 2024, 12:40 by Niverio
Lovely! Very smooth and fun with a very consistent difficulty throughout!

on 4. August 2024, 03:36 by KNT
great! seeing your name in the list of new puzzles was a pleasant and very welcome surprise :-)

Difficulty:4
Rating:97 %
Solved:32 times
Observed:1 times
ID:000J78

Standard puzzle Shading puzzle

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Solution code:

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