Logic Masters Deutschland e.V.

Japanese Sum Cave Cipher #2: Zero

(Eingestellt am 13. Oktober 2022, 23:25 Uhr von KNT)

Rules:

Place the digits 0 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 (this includes double digit numbers that lead with letters as well). 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 0-6. For the simplicity of a smaller puzzle, A-F are restricted to only the digits 0-6.

Example puzzle

Lösungscode: The positive diagonal, from top right to bottom left.

Zuletzt geändert am 10. November 2022, 19:34 Uhr

Gelöst von Vebby, polar, Gaabje123, ONeill, Koalagator2, Jesper, marcmees, MagnusJosefsson, ibag, PrimeWeasel, Playmaker6174, Niverio, Alex, ch1983, ascension, harrison, Agent, AnnaTh, Xendari, Uhu, Mark Sweep, ... Piatato, rubbeng, Sewerin, Gliperal, rmn, Christounet, cornuto, ManuH, gynu, akamchinjir, marsh, Snookerfan, zuzanina, Nensche777, boomsoon, tuturitu, pandiani42, Paletron, Nick Smirnov, wullemuus
Komplette Liste

Kommentare

am 3. September 2023, 14:06 Uhr von Snookerfan
Fantastic puzzle! The zero's made my head spin a few times. Thank you

am 27. Juni 2023, 00:57 Uhr von marsh
So proud of this solve. I lost count on how many times I have broken it during the last couple of months.
Great logic and solve path. Thanks KNT

am 26. Juni 2023, 23:55 Uhr von marsh
So proud of this solve. I lost count on how many times I have broken it during the last couple of months.
Great logic and solve path. Thanks KNT

Zuletzt geändert am 13. März 2023, 21:45 Uhr

am 13. März 2023, 21:44 Uhr von Christounet
Finally !!!
After several month of trying to solve this one, I have finally spotted the crucial piece of logic that was missing to get into this puzzle :)
Amazingly good opening sequence !
Now I can move forward to the next in the serie ! A lot of catching up ahead of me :)

am 12. Januar 2023, 02:48 Uhr von Piatato
Very nice! Took me a good while, but it was well worth the effort :-)

am 13. Dezember 2022, 06:16 Uhr von wooferzfg
A beautiful puzzle with steady progress. Thanks!

am 11. November 2022, 17:02 Uhr von peacherwu2
Stuck until I read Mark Sweep's comment. Very hard!

am 10. November 2022, 19:34 Uhr von KNT
Title change

am 28. Oktober 2022, 14:25 Uhr von Mark Sweep
An absolutely amazing solve! I had many pitfalls by forgetting the 0 can change all Japanese sum deductions, but climbing out of them and finding the right path was definitely worth it.

am 21. Oktober 2022, 19:50 Uhr von KNT
Updated visuals: using "?" instead of "." for better visibility

am 15. Oktober 2022, 03:55 Uhr von Niverio
Way better than the first one ;)

Zuletzt geändert am 14. Oktober 2022, 22:54 Uhr

am 14. Oktober 2022, 22:42 Uhr von Playmaker6174
Brilliant construction with a very challenging and engaging solve path till the very end!
The 0 really adds an extra layer for the solve, and there are plenty of unexpected deductions in the beginning and the later half, I really enjoyed them overall ;)

Zuletzt geändert am 14. Oktober 2022, 22:38 Uhr

am 14. Oktober 2022, 22:38 Uhr von PrimeWeasel
Every letter and digit obtained are worth it.

am 14. Oktober 2022, 16:56 Uhr von ibag
Sehr schön und geradlinig zu lösen.

am 14. Oktober 2022, 15:07 Uhr von MagnusJosefsson
Fantastic puzzle with a lot of lovely well-balanced logic! No step really difficult but overall a very challenging puzzle. Thanks KNT!

Zuletzt geändert am 14. Oktober 2022, 12:12 Uhr

am 14. Oktober 2022, 11:57 Uhr von marcmees
Thanks for this challenging puzzle. The "0" definitely adds a dimension to the diff.

am 14. Oktober 2022, 11:13 Uhr von Jesper
A wonderful puzzle, thanks KNT!

am 14. Oktober 2022, 04:19 Uhr von ONeill
Very nice logic during the break-in and throughout, thanks!

am 13. Oktober 2022, 23:43 Uhr von polar
Lovely, as always. I look forward to Japanische Höhle mit Extras #3 ;)

am 13. Oktober 2022, 23:36 Uhr von Vebby
Even better than #1! Loved the arithmetic logic in this one. Thanks KNT :)

Schwierigkeit:5
Bewertung:99 %
Gelöst:55 mal
Beobachtet:1 mal
ID:000BMJ

Lösung abgeben

Lösungscode:

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