Logic Masters Deutschland e.V.

Crypto Japanese Cave / Pentominous

(Eingestellt am 26. Januar 2023, 04:41 Uhr von KNT)

Shade some cells in the first grid such that all unshaded cells are orthogonally connected, and all orthogonally connected groups of shaded cells touch the perimeter of the grid. Then, enter numbers from 1 to 9 in every unshaded cell such that no number repeats in a row or column. Numbers must not be placed in shaded cells.

Same letters stand for same digits, different letters for different digits, and ? stands for any digit 0-9, but no clue may have a leading zero.

Divide almost every cell in the second grid into pentominos such that no two pentominos of the same shape may share an edge. Rotations and reflections of the same pentomino are the same shape.

For all circled cells in the second grid, if the cell in the same location of the first grid contains a number, then the letter corresponding to that number in the encoding indicates the shape of the pentomino at the circle in the second grid. If the corresponding cell is empty, then that cell in the second grid contains no pentomino. The only cells in the second grid that are not covered by a pentomino are circled cells corresponding to empty cells in the first grid. Two of the twelve possible pentominos do not have assignments in the encoding, but these pentominos may still appear in the second grid.

A 1-6 example with an encoding for 0-6 is provided.

SudokuPad

penpa+

Pentomino shapes and their corresponding letters:

Lösungscode: Row 9 of the Pentominous, then Column 8 of the Japanese Sums, S for empty cell.

Zuletzt geändert am 2. Januar 2026, 11:40 Uhr

Gelöst von Vebby, polar, Xendari, the_cogito, Niverio, Jesper, Koalagator2, MagnusJosefsson, cdwg2000, jkuo7, RJBlarmo, ibag, Statistica, stayal, Myxo, Alex, wooferzfg, Jakhob, ONeill, rmn, Jaych, ffricke, Lyun Licuss, akamchinjir, lerroyy, Tom-dz, Agent, Nensche777, dunder, tuturitu, Paletron, Nick Smirnov, Christounet, zzw, h5663454, Piatato, Snookerfan, wullemuus, misko, dogfarts
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Kommentare

am 29. Juli 2024, 16:23 Uhr von Snookerfan
Brilliant puzzle, loved it very much! Thank you

am 25. Juli 2024, 14:30 Uhr von Piatato
Great fun! Awesome ruleset, executed brilliantly :)

am 25. Mai 2024, 02:04 Uhr von zzw
Great puzzle! Really cool ruleset idea too, using pentomino letters as the cipher.

am 6. Mai 2024, 00:33 Uhr von Christounet
Phew !

am 20. September 2023, 07:23 Uhr von Agent
Exceptional puzzle, the logic was crisp and fun all the way through. I thought I had reached a contradiction multiple times but the perseverance was well worth it.

am 12. Februar 2023, 03:33 Uhr von ONeill
Gorgeous puzzle, it was not so easy for me either, but very enjoyable nonetheless. Thanks :)

am 10. Februar 2023, 06:46 Uhr von wooferzfg
A slow and steady solve with a lot of fun deductions throughout. The example puzzle wasn't a pushover either! Thanks for the wonderful puzzles.

am 9. Februar 2023, 07:00 Uhr von Alex
Another great one!

am 4. Februar 2023, 18:58 Uhr von Myxo
Amazing puzzle, as usual. Unlike other people, I found this one to be more difficult than most of the puzzles in this series so far.

am 3. Februar 2023, 19:12 Uhr von KNT
Fixed rules in example puzzle link. Thanks @stayal!

am 31. Januar 2023, 20:51 Uhr von stayal
First time I've tried a linked grid puzzle and I loved it! Long solve but every bit of logic was progressive and genius.

am 31. Januar 2023, 20:50 Uhr von stayal
First time I've tried a linked grid puzzle and I loved it! Long solve but every bit of logic was progressive and genius.

am 29. Januar 2023, 21:43 Uhr von ibag
Sehr schön mal wieder!

am 27. Januar 2023, 11:41 Uhr von MagnusJosefsson
Fantastic puzzle! Very fun and creative combination.

am 26. Januar 2023, 22:35 Uhr von Jesper
Loved it, great addition to the series, thanks!

Zuletzt geändert am 26. Januar 2023, 22:34 Uhr

am 26. Januar 2023, 21:07 Uhr von Niverio
UwU quality puzzle.

am 26. Januar 2023, 14:09 Uhr von Xendari
amazing puzzle, U WU is my favourite clue of the series

am 26. Januar 2023, 06:27 Uhr von Vebby
Superb idea to incorporate pentominoes! A long, enjoyable solve. I'm all for more linked grid puzzles in the series :)

Zuletzt geändert am 20. September 2023, 14:26 Uhr

am 26. Januar 2023, 04:23 Uhr von KNT
I must note, for each in this series, the examples are not just diagrams, they are real, tested puzzles, and I would feel comfortable posting almost all of them as standalones. So, once again to those interested, but maybe without the full confidence to take on the real ones, the example puzzles should provide adequate fun as well, at an easier level.

Schwierigkeit:5
Bewertung:99 %
Gelöst:40 mal
Beobachtet:7 mal
ID:000CQL

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Lösungscode:

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