Logic Masters Deutschland e.V.

Invisible Renban

(Published on 17. July 2024, 02:34 by ClashCode)

Inspired by a test puzzle of RockyRoer and a conversation with XeonRisq.

Invisible Renban

Rules

Japanese Sums: Shade some cells in the grid and place digits from 1-9 into each unshaded cell such that no digit repeats in any row/column. Clues outside the grid show the sums of digits in contiguous unshaded cells in the respective row/column in order from the left/top to right/bottom.
Cave: All unshaded cells must be orthogonally connected. Shaded cells must connect orthogonally to the edge of the grid.
Invisible Renban: Every row/col must be a set of consecutive digits in any order.

Link

Sudokupad

Solution code: Row 2 followed by Column 9. 18 Digits no spaces

Last changed on on 17. July 2024, 02:44

Solved by fjam, AFrayedKnot, KNT, jkuo7, Tom-dz, h5663454, Canyun, SEPHEN, Piatato, ONeill, Luigi, Christounet, Piff, Franjo, marcmees, r45, Chilly, misko, softie, Paletron, TheZwierz, Laje6, Montinox, uvo, SKORP17, karen_birgitta, Jesper, JustinTucker, ffricke, susadoraku, ManuH, peterkp, Uhu, Ulistef, Calesch, OGRussHood, ildiko, qalkx, Counterfeitly, gxorgx
Full list

Comments

on 31. August 2024, 14:38 by Ulistef
Nice flow. I did not need the Cave-Rule.

on 17. July 2024, 17:22 by Franjo
Very nice ruleset, very well executed for a smooth solving path. Thank you very much for sharing this lovely non-Sudoku puzzle.

on 17. July 2024, 15:18 by Christounet
Great fun ! The invisible renban rule is very interesting. Thanks :)

on 17. July 2024, 14:02 by Piatato
Nice and smooth! :)

on 17. July 2024, 02:58 by AFrayedKnot
Nice! Really smooth and approachable. Neat idea too.

on 17. July 2024, 02:44 by ClashCode
Fixed link

Difficulty:3
Rating:93 %
Solved:40 times
Observed:0 times
ID:000IZF

Enter solution

Solution code:

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