Logic Masters Deutschland e.V.

Arithmetic Progression Little Killer Sudoku

(Published on 17. April 2020, 02:38 by ProwlingTiger)

Usual sudoku rules apply. Like most little killer sudokus, the digits in a diagonal designated by an arrow add up to the value of that arrow. However, in this puzzle, not all arrows have given values. On each side of the grid, each group of the arrows' values form an arithmetic sequence. For example, the arrows on the bottom could be {25, 14, 3} whilst the arrows on the left could be {14, 13, 12}. Digits along a diagonal may repeat.

Solution code: 9th row, where digits are not separated by anything. For example, 123456789.

Last changed on on 17. April 2020, 02:48

Solved by cdwg2000, zhergan, Errorandy, ch1983, ManuH, geronimo92, Joe Average, Julianl, Richard, marcmees, rimodech, r45, glum_hippo, jessica6, moss, Realshaggy, Mody, mahana, Statistica, zorant, karzym, bob, NikolaZ, Ours brun, skywalker, Ragna, misko, kopfball
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Comments

on 18. April 2020, 08:09 by Puzzle_Maestro
@ProwlingTiger make sure you understand the difference between ‘hard’ and ‘requiring T&E’. There is nothing wrong with hard puzzles with a fully logical solve path, but T&E makes the puzzle more frustrating (as well as harder).

on 18. April 2020, 08:02 by Mody
I had a lot uf fun, finding the sums of the arrows. For your first Sudoku here, an amazing construction.

Last changed on 19. April 2020, 08:34

on 17. April 2020, 19:08 by ProwlingTiger
Again, thanks for all the feedback! In my next sudoku, I made the normal sudoku much less painful.

on 17. April 2020, 16:51 by Richard
The first half of the solve was fantastic with nice logic in the sequences. The second half was one long series of T&E, which is a pity...

on 17. April 2020, 15:43 by geronimo92
@Circleconstant314 : of course they are NOT, why should they be? Just necessary to respect the sequence constraint nothing else that is enough to solve it

@ProwlingTiger : why such a difficult end after the little killer breakthrough.... wasn't it possible to give more hints to finish it in a easier way?

on 17. April 2020, 14:09 by Circleconstant314
Are all possible arrows given, here?

Last changed on 17. April 2020, 10:03

on 17. April 2020, 10:02 by zhergan
Nicely worked. Brilliant. Thanks :)

on 17. April 2020, 08:04 by cdwg2000
This puzzle is very creative and very good, thank you!

on 17. April 2020, 02:48 by ProwlingTiger
Deleted an irrelevant puzzle tag.

on 17. April 2020, 02:40 by ProwlingTiger
Changed the title of this sudoku, because I didn't understand what "name" meant. ;)

Difficulty:4
Rating:79 %
Solved:28 times
Observed:4 times
ID:0003CQ

Standard puzzle Arithmetic puzzle

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Solution code:

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