Logic Masters Deutschland e.V.

Japanese Sum Cave Cipher #1

(Eingestellt am 11. Oktober 2022, 08:04 Uhr von KNT)

Here's a small puzzle I threw together after a handful of longer, more difficult ones. This is inspired by the great setter Uhu. I hope you like it, as a second, more difficult and intricate one will come in the future :)

Rules:

Place the digits 1 to 9 exactly once in each row and column of the grid, and some cells in the grid are to be shaded such that the final shading of the grid resembles a valid cave (All unshaded cells are orthogonally connected and all shaded cells are orthogonally connected by other shaded cells to an edge of the grid).

Outside clues are Japanese sum clues. "?" is a stand in for any digit 0-9, but for a double digit number, the first digit may not be 0. Each distinct letter represents some unique digit from 0 to 9.

Clues to the left of the grid are Japanese sum clues for either shaded or unshaded groups of cells, where each group needs at least one of the other (shaded or unshaded) to separate the groups. Clues to the top of the grid are Japanese sum clues for the OTHER of shaded or unshaded. (That is, if it turns out clues to the left indicate sums of unshaded blocks, clues to the top indicate sums of shaded blocks). All outside clues are given.

Play on Penpa+!

Answer check is enabled with blue sudoku digits.

Below is an example on the digits 1-6. For the simplicity of a smaller puzzle, A-F are restricted to only the digits 1-6.

Example puzzle

Lösungscode: Row 7, Row 8

Zuletzt geändert am 21. Oktober 2022, 18:36 Uhr

Gelöst von polar, MagnusJosefsson, ibag, Uhu, marcmees, Vebby, Lizzy01, ONeill, r45, Jesper, harrison, Koalagator2, Agent, AnnaTh, ManuH, PrimeWeasel, Niverio, Alex, Playmaker6174, cdwg2000, ch1983, ascension, ... MaizeGator, h5663454, Tom-dz, Zzzyxas, Martijn314, zuzanina, gynu, akamchinjir, Snookerfan, Nensche777, boomsoon, pandiani42, CaGr, isajo4002, Paletron, Nick Smirnov, Trickyman, Bellsita, wullemuus
Komplette Liste

Kommentare

Zuletzt geändert am 1. September 2023, 21:44 Uhr

am 1. September 2023, 21:43 Uhr von Snookerfan
Great puzzle! I usually skip puzzles in penpa, but I just found a tip to play them in the CTC-app (https://marktekfan.github.io/sudokupad-penpa-import/).
Thank you.

am 30. Dezember 2022, 12:17 Uhr von wisty
Wonderful puzzle! I'm enjoying getting into this style of thinking. Thank you for helping me along the way :)

am 13. Dezember 2022, 03:00 Uhr von wooferzfg
Beautiful puzzle, thanks!

am 15. November 2022, 13:54 Uhr von Christounet
Finally done it ! Very beautiful stuff ! Now I can move on to #2, #3, #4... so much catching up to do :)

am 21. Oktober 2022, 18:20 Uhr von KNT
Updated visuals: using "?" instead of "." for better visibility

am 16. Oktober 2022, 15:19 Uhr von Mody
Wunderschön

am 14. Oktober 2022, 20:31 Uhr von Playmaker6174
Lovely! Had some trouble at the opening and some points later on but it didn't really feel monstrously hard for me, but I still had great fun till the end ;)

am 14. Oktober 2022, 18:51 Uhr von KNT
added link with cipher key

am 13. Oktober 2022, 15:26 Uhr von PrimeWeasel
BACEIDGAHJICCEDAFFCCBAB BIA DABEFJ FGABD!

am 12. Oktober 2022, 01:31 Uhr von Agent
Amazing puzzle! Beautiful solution path with many rewarding deductions along the way.

Penpa+ with letter key, if anyone is interested in that: https://tinyurl.com/2qm3lm97

am 11. Oktober 2022, 21:31 Uhr von Jesper
Great puzzle, really enjoyed it! Can't wait for #2.

am 11. Oktober 2022, 15:53 Uhr von Vebby
Very nice! Features the quintessential quality of a KNT puzzle: great interplay between the rules / puzzle types.

am 11. Oktober 2022, 15:10 Uhr von marcmees
great puzzle. The bottom half slowed me down considerably. :-)
Thanks.

am 11. Oktober 2022, 14:20 Uhr von Uhu
Great puzzle! Thanks! Looking forward to the second one.

am 11. Oktober 2022, 10:29 Uhr von MagnusJosefsson
Great puzzle as always! Well balanced and interesting logic all the way to the end.

am 11. Oktober 2022, 08:39 Uhr von polar
Very enjoyable and quite straightforward compared to most of your other puzzles! Nice to see some older rulesets being used again :)

Schwierigkeit:4
Bewertung:98 %
Gelöst:77 mal
Beobachtet:1 mal
ID:000BL7

Lösung abgeben

Lösungscode:

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