Logic Masters Deutschland e.V.

Etude for a Broken Piano

(Published on 3. May 2025, 19:44 by juggler)

This puzzle is dedicated to The Pedalling Pianist: a constructor of strange and fascinating puzzles, as well as being a musician, teacher, and all around jolly good fellow.

click on the puzzle image to play

SCHRODINGER SUDOKU - Place at least one digit from 1-9 in every cell so that each digit appears exactly once in every row, column, and 2x4 region. The value of a cell is the sum of its digits.

BLACK KEYS - Values separated by a black key are in a 2:1 ratio... unless the black key is broken, in which case the ratio will be same as the ratio written next to the row. (Example: values of 8 and 10 could appear on either side of a broken black key in a row with the clue 5 / 4).

EVEN TAPE - Each tape strip has an even sum.

CRESCENDO - Values increase along the crescendo mark, starting from the pointy end.

Solution code: Row 8

Last changed on on 3. May 2025, 21:16

Solved by SKORP17, chameleon, aqjhs, vitaminz, fkib, Voidslime, Clara123, josebastian8, bansalsaab, utsavb, Sotehr, mahdiosm, ThePedallingPianist, EFlatMinor, smckinley, Isael, Franjo, Doc Liu, The Book Wyrm, ... DaleVandermeer, MonsieurTRISTE, NEWS, Nell Gwyn, zeniko, woody, Andrewmi3, Neumino, Default, eladv, spaanse, widjo, E_firework, OrestisLomis, Mikemerin, Frank Puzzles, CutieRainbow, Evicts
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Comments

on 5. May 2025, 14:59 by Franjo
Unusual ruleset (as usual for your puzzles) and so fascinating! Thank you very much for creating and sharing this sudoku symphony.

Last changed on 5. May 2025, 01:38

on 5. May 2025, 01:38 by ThePedallingPianist
What a delightful puzzle! Very cool idea, beautiful presentation, interesting logic, and... well, there were two other reasons I particularly enjoyed it... Thank you for this lovely dedication/present - you're an incredibly talented individual and I'm very glad to call you a friend!

on 3. May 2025, 22:17 by chameleon
Neat puzzle, as usual!

Difficulty:4
Rating:95 %
Solved:40 times
Observed:5 times
ID:000N6O

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Solution code:

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