Battenburgs and Mod-Zip-Birds
(Published on 25. April 2025, 22:18 by sujoyku)
I wish you joyful solving!
- Normal sudoku rules apply, i.e. each row, column, and 3x3 region has to contain the digits from 1 to 9 once each.
- Battenburg: Whenever 2 odd and 2 even digits form a 2x2 checkerboard pattern (e.g. R1C2 and R2C3 even, R1C3 and R2C2 odd), a Battenburg marking is given. If there is no such marking, the above pattern is not allowed.
- Modular Zippers: All teal lines are both Modular and Zipper Lines. Every set of three adjacent digits along the line has to contain one digit of (1, 4, 7), one of (2, 5, 8) and one of (3, 6, 9). Moreover, digits at an equal distance to the center, which is marked with a dot, must sum to the digit at the center.
Here you can solve the puzzle online:
Solution code: Row 5 from left to right (9 digits in total)
Comments
on 28. April 2025, 21:33 by vitaminz
Really liked this one. Thanks, sujoyku!
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You are much welcome, vitaminz, thank you for your comment! I am glad that you liked the puzzle.
Kind regards, sujoyku
on 27. April 2025, 18:28 by Lenivaya_Joppa
Thank you very much for this pleasant puzzle, dear sujoyku! :)
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You are much welcome, Lenivaya_Joppa, thank you for your comment! I am glad that you liked the puzzle.
Kind regards, sujoyku
on 26. April 2025, 14:01 by Franjo
Herrliche Idee in gewohnt schöner Umsetzung! Insbesondere der Einsatz der Battenburg-Symbole für die Parity-Bedingung hat mich schwer beeindruckt. Sieht man viel zu selten. Hab vielen Dank für das großartige Puzzle, sujoyku.
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Vielen Dank für deinen freundlichen Kommentar, Franjo! Es ist schön, dass Dir dieses Battenburg-Rätsel gefallen hat. Und du hast Recht: Es ist eine ein bisschen aus der Mode gekommene Variante. Mir macht sie auch sehr viel Spaß.
Herzliche Grüße, sujoyku
on 26. April 2025, 11:01 by Exigus
That was interesting, i enjoy working out how different restrictions work together on the same line.
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Thank you, Exigus! I am glad you found the line combo to be interesting.
Kind regards, sujoyku
