Logic Masters Deutschland e.V.

Counting Lines

(Eingestellt am 2. September 2026, 21:14 Uhr von dleclair)

Counting Lines by Derek LeClair

Normal sudoku rules apply.

If a digit N appears on a constraint, it must appear N times across all instances of that constraint type.

Constraints:

Adjacent digits along an orange line must differ by at least 4.

Along a red line digits must alternate parity (even/odd).

Along a peach line any set of 3 adjacent digits must contain one low (123), one middle (456), and one high (789) digit.

Digits separated by a V sum to 5.

Solve in SudokuPad

Lösungscode: Row 1

Zuletzt geändert am 2. September 2026, 21:16 Uhr

Gelöst von Arlo Lipof, Adaki, SKORP17, gladstone, jalebc, Hrothan, GeorgeTheToad2, BanishedBread, Joyofrandomness, gustavo.fring, lina_hyena, by81996672, farodin64, goldensun, Fenn, Peteronium, Lithium-Ion, ... pmatos, Franjo, Bravissimo, welgen, josemadre, Elizy, terrible_casserole, shifman23, Togoretastic, D3M4R, Exigus, pepe74287, Kabcar, idanz, Jastucreudo, cvil, Graphael, Rex, Tompzini, abadx
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Kommentare

Zuletzt geändert am 4. September 2026, 17:54 Uhr

am 4. September 2026, 17:03 Uhr von jackraz
This statement cannot be true: "If a digit N appears on a constraint, it must appear N times across all instances of that constraint type."

ie: I put 9 on a peach line and then there should be part of a peach line in every 3x3 block where the 9 must be placed

What am I missing?
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You'd be correct, if the peach line isn't in every 3x3 block, then 9 couldn't be on it or it would break the rule

am 3. September 2026, 18:58 Uhr von Franjo
Thank you very much for creating and sharing this lovely puzzle. Nice setting though some people may have problems with these three line colors (which of course are the usual ones for these constraints).

Zuletzt geändert am 3. September 2026, 17:41 Uhr

am 3. September 2026, 16:50 Uhr von Niffyjiffy
The line from R6C8 to R7C7 is a slightly different color than either the peach or red lines.

Thoroughly enjoyed the puzzle, thanks very much!

am 3. September 2026, 11:17 Uhr von Lithium-Ion
Wonderful puzzle! Great fun to solve. Well done! Would deserve a rating of at least 95%.

Zuletzt geändert am 3. September 2026, 11:04 Uhr

am 3. September 2026, 11:01 Uhr von Peteronium
What a wonderful puzzle

am 3. September 2026, 10:05 Uhr von Peteronium
Digit N constraint cannot be the case for the Vs right?

am 3. September 2026, 00:17 Uhr von GeorgeTheToad2
Fantastic that was wonderful

Zuletzt geändert am 2. September 2026, 22:41 Uhr

am 2. September 2026, 22:06 Uhr von Hrothan
Was there something wrong with the version that was published with German whispers instead of Dutch Whispers?
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Nothing wrong, dutch whispers just constrained it a little less while still giving a unique solve path

am 2. September 2026, 21:27 Uhr von Arlo Lipof
That was fun, thanks!

Schwierigkeit:2
Bewertung:94 %
Gelöst:45 mal
Beobachtet:0 mal
ID:000UOL

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