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Ant Wars - Sandwiched Battlefield Sudoku

(Published on 30. July 2020, 22:00 by Yohann)

Standard sudoku rules apply.

The clues outside the grid indicate a battlefield sandwiched between 8 and 9 in the respective row/column. Rows/columns without clues may or may not follow the battlefield rules described below.

Consider the first x and last y cells of a sandwich where x is the value of the first and y the value of the last cell. Those x/y cells cannot reach cells outside of their sandwich (8 and 9 are not considered part of the sandwich). The clue next to the row/column gives the sum of the digits where these groups overlap or the sum of the digits between these groups.

For example if your row/column is 694752381, you only take into account the digits between 8 and 9 for the battlefield: 47523. Pick x=4 cells starting from the 4, and y=3 cells starting from the 3. You get an overlap over the digits 5 and 2, thus a battlefield value equal to 7.

Penpa Link

Solution code: Row 4, column 6

Last changed on on 1. August 2020, 13:21

Solved by geronimo92, marcmees, Nylimb, udukos, NikolaZ, henrypijames, zorant, Mody
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Comments

Last changed on 3. August 2020, 05:26

on 3. August 2020, 05:21 by henrypijames
“Those x/y cells cannot reach cells outside of their sandwich” is ambiguous. Is a sandwich like 97168 not allowed, or is it allowed, but 7 and 6 only overlap in 716?

Also, is 918 a valid sandwich?

on 1. August 2020, 13:21 by Yohann
Added example & raised difficulty

on 31. July 2020, 23:29 by Big Tiger
I do try to space mine out, Geronimo! :-D

on 31. July 2020, 19:40 by marcmees
full of new battlefield tricks. thanks.

on 31. July 2020, 14:07 by geronimo92
Yes sadly we have to repeat again and again that there are really too many new puzzles every day but nobody seem to take that into account. @all new authors : dont be surprised if your puzzles dont have many solvers, we are just exhausted and desperate because of the number of new ones !!

on 30. July 2020, 23:25 by henrypijames
Wow, battlefield is getting really popular these days. I fear Big Tiger will soon be unable to keep track of all of them because there would simply be too many.

Difficulty:4
Rating:N/A
Solved:8 times
Observed:8 times
ID:0003ZV

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Solution code:

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