Logic Masters Deutschland e.V.

Sum In Tent [with The Pi Guy]

(Published on 25. September 2026, 22:03 by sujoyku)

I am happy and proud to present my first-ever collab with The Pi Guy. Together, we explored Region Sum lines that simultaneously are German Whispers or Parity lines (or both). The solver has to find out which line satisfies which of the two extra constraints.
We would like to thank all who tested the puzzle and wish you joyful solving!

RULES


Sudoku: Put the digits 1 to 9 once each into every row, column & 3 by 3 box.

Region Sum lines: The box borders divide each hollow blue line into sections which must have the same sum. This sum may be different for different lines.

Each Region Sum line is also a German Whispers line, a Parity line, or both.

German Whispers lines: Each pair of cells along the line must contain digits that are at least 5 apart.

Parity lines: Each pair of cells along the line must consist of an odd and an even digit.

The solver must determine which line is which.


Here you can solve the puzzle online:

Solve on Sudokupad

Solution code: Row 1 from left to right (9 digits in total)


Solved by jalebc, SudokuHero, Jesper, SKORP17, Vodakhan , cryptique, Pioooooo, Saltensity, by81996672, Calvinball, olchi, NEWS, gdc, Gribba Bibba, Krisonium, amirs, Franjo, Piatato, killer_rectangle, sedici, Ramez, dorverbin, SeveNateNine, jams, mcs131313, bellaquill, chinesemaster, widjo, Lyouke, Qodec, Julianl, ghosting, karlmortenlunna, mathhead
Full list

Comments

Last changed on 29. September 2026, 19:39

on 29. September 2026, 17:47 by Qodec
Really enjoyed that! Thanks!

**
You are much welcome, Qodec, thank you for your comment! We are glad that you enjoyed the puzzle.
Kind regards, sujoyku

Last changed on 26. September 2026, 22:00

on 26. September 2026, 20:51 by Piatato
Fun puzzle, thanks!

**
Thank you, Piatato!
Kind regards, sujoyku

Last changed on 26. September 2026, 20:10

on 26. September 2026, 19:45 by Franjo
Das war richtig schön! Völlig unverständlich, dass die Bewertung unter 90% liegt. Vielen herzlichen Dank für euer tolles Puzzle.

**
Vielen Dank für deinen Kommentar, Franjo! Wir freuen uns sehr, dass es Dir gut gefallen hat.
Herzliche Grüße, sujoyku

Last changed on 26. September 2026, 15:04

on 26. September 2026, 13:57 by amirs
Very nice puzzle!

**
Thank you, amirs! We are glad that you enjoyed it.
Kind regards, sujoyku

Last changed on 26. September 2026, 09:20

on 26. September 2026, 02:24 by Saltensity
Nice and fun puzzle! I loved progressing through the puzzle (and the design of the lines!), thank you for creating this sujoyku and The Pi Guy! ^=^

**
You are much welcome, Saltensity, thank you for your comment! We are glad that you liked the puzzle and its design. Making the lines hollow was a great tester's suggestion so that solvers can mark lines with the pen tool.
Kind regards, sujoyku

Difficulty:3
Rating:88 %
Solved:34 times
Observed:2 times
ID:000V58

Enter solution

Solution code:

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