- Normal Sudoku rules apply.
- Killer cages: Digits in a cage sum to the clue in the top left.
- Ambiguous Battenburg: Mark each cell of the grid with one of two different colours (e.g. red and blue) such that each digit always appears in cells of the same colour. (For example, if a 1 is in a red cell, all 1s in the grid have to be in red cells.) In any killer cage, all cells have the same colour (i.e. any cage is entirely red or entirely blue, but does not consist of both red and blue cells). Whenever 2 digits of both colours each form a 2x2 checkerboard pattern, a Battenburg marking is given. If there is no such marking, the above pattern is not allowed.
Here you can solve the puzzle online:
Solution code: Row 8 from left to right (9 digits in total)
on 8. March 2024, 09:52 by botteur
Really enjoyable. Thanks
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You are much welcome, botteur, thank you for commenting! I am glad that you enjoyed the puzzle.
Kind regards, sujoyku
on 7. March 2024, 09:53 by mihel111
Smooth and fun. Thx Sojoyku.
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Thank you for your comment, mihel111! I am glad you had a smooth and fun solve.
Kind regards, sujoyku
on 6. March 2024, 20:15 by sujoyku
Changed link to include answer check, no changes to the contents of the puzzle. Thanks go to glum_hippo for providing the link!
on 6. March 2024, 14:49 by glum_hippo
with answer check: https://sudokupad.app/ykwpnz9six
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Hi glum_hippo,
thank you for providing the link with answer check. Shall I embed it above?
Kind regards, sujoyku
_
Yes
on 6. March 2024, 14:03 by Krokant
Fun variant of Battenburg. :)
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Thank you for the comment, Krokant! I am glad you liked this variant of Battenburg.
Kind regards, sujoyku
on 6. March 2024, 03:26 by misha
Nice variant. Solves very nicely with some simple algebra.
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Thank you for your comment, misha! I was kind of waiting for someone to mention the little math that is involved. :)
I am glad you enjoyed the puzzle.
Kind regards, sujoyku
on 5. March 2024, 19:07 by Fizz
I really liked this constraints, thank you for the awesome and fun puzzle!
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You are much welcome, Fizz, thank you for your kind words! I am glad you liked the constraints and had a fun solve.
Kind regards, sujoyku
on 5. March 2024, 17:40 by nunc
Straight forward puzzle with a beautiful flow. Very nice, thank you!
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Thank you for the comment, nunc! I am glad that you enjoyed the flow of the solve.
Kind regards, sujoyku
on 5. March 2024, 15:49 by Lokeil
nice puzzle
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Thank you for commenting, Lokeil! It is nice to hear that you liked the puzzle.
Kind regards, sujoyku
on 5. March 2024, 12:41 by Snookerfan
Great variant! Loved the puzzle. Thank you
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You are much welcome, Snookerfan, thank you for the comment! I am glad that you liked the puzzle.
Kind regards, sujoyku
on 4. March 2024, 23:20 by sujoyku
changed image and solving link since there was a meaningless small number at the edge of the grid due to a typo in Penpa, no changes to the contents of the puzzle