Logic Masters Deutschland e.V.

Cross the Streams (Koralle)

(Published on 28. September 2017, 10:55 by JonaS2010)

Apply classic Cross the Streams rules (see below). Additionally, the black cells have to form a "Koralle". This means that all white cells have to be orthogonally connected to an edge of the grid.

Rules (from gmpuzzles.com): Shade some empty cells black to create a single group of black cells that are all connected to each other through their edges. No 2×2 cell area within the grid contains all black cells. Numbers to the left/top of the grid represent the groups of consecutive black cells which are in that row/column in order, either from left to right or from top to bottom. 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; an asterisk (*) represents any number of unknown groups of black cells, including none at all.

Inspired by ibag's comment on my earlier Cross the Streams.

Solution code: Enter the length of conecutive black cells in the following columns: Column 5, 6, 7 and 9.


Solved by Zzzyxas, zorant, moss, cornuto, dm_litv, CHalb, sf2l, Matt, Luigi, saskia-daniela, deu, ibag, Uhu, sandmoppe, ffricke, jirk, Joo M.Y, misfit, Alex, ch1983, jessica6, tuace, Joe Average, r45, AnnaTh, ... SP1, NikolaZ, Mathi, CaGr, uvo, Realshaggy, misko, Krokant, SebastianSimon, skywalker, EKBM, zuzanina, KNT, Jesper, chrisbee2, puzzler05, Calesch, Playmaker6174, dogfarts, JustinTucker, sevket12
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Comments

on 4. May 2026, 08:05 by Playmaker6174
Penpa link for solving: https://tinyurl.com/27yfkjnu

Quite tricky first half, but it was an ultimately satisfying solve at the end! Thanks :)

on 29. September 2017, 07:38 by ibag
Klasse!! Und danke dass ich die falschen Regeln vom letzten nochmal benutzen durfte!

Difficulty:3
Rating:90 %
Solved:66 times
Observed:9 times
ID:0002PE

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