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(Published on 6. April 2021, 15:05 by Tyrgannus)

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Prime Sum Windoku

Rules:

Normal sudoku rules apply

Digits cannot repeat in a cage

In each box, all 4 caged cells must sum to a prime number. Box 5 is exempt from this rule

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Solution code: Row 4 + 6, no spaces

Last changed on on 7. April 2021, 07:16

Solved by NikolaZ, karen_birgitta, h0_0man, grkles, cfop, rimodech, chuffinora, cdwg2000, marcmees, DiMono, jovi_al, SKORP17, ogi.djukovic, LeLoyJenkins, Vebby, Krokant, SXH
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Comments

on 8. April 2021, 20:14 by jovi_al
Great puzzle! <3

on 7. April 2021, 07:16 by Tyrgannus
Revised difficulty to 3

on 7. April 2021, 02:32 by cdwg2000
Very good, the rule may need to explain one: the sum of the four cells of each 3*3 area belonging to the window is a prime number, but the fifth 3*3 area is exempt. I think the difficulty is not more than 3 stars. Thank you!

Difficulty:4
Rating:88 %
Solved:17 times
Observed:8 times
ID:0005WG

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