Logic Masters Deutschland e.V.

Equal Sums with a Twist

(Published on 17. March 2022, 03:14 by Arlo Lipof)

Rules:

  • Normal Sudoku rules apply.
  • Lines. Let S be a sum value to be discovered by the solver. In each box it passes through, a line either has a sum equal to S, or a sum equal to a multiple of S (2*S, 3*S etc.). For instance if S=7, a line could pass through cells 2 and 5 (2+5=7=S) in one box, and through cells 6, 3, 1 and 4 in another box (6+3+1+4=14=2*S). The sum value S is the same for the four lines.
  • Little Killer clues. Clues outside the grid give the sum of the digits along the indicated diagonal.

Links: F-Puzzles, CTC

I am pretty pleased with the logical path you have to follow in order to solve this puzzle! I hope you'll enjoy it too! Ratings and comments are welcome of course.

Solution code: Row 2 then Row 8 (18-digit number without spaces)

Last changed on -

Solved by bigger, Askloomok, davidjshort, Bankey, zorant, jalebc, PippoForte, SKORP17, marcmees, peterkp, djorr, cdwg2000, Saskia, DiMono, SSG, zrbakhtiar, Crul
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Comments

Last changed on 11. June 2022, 08:08

on 10. June 2022, 20:54 by djorr
Very neat! And the LK variant is a perfect match with this constraint. Well done!

A: Thank you very much!

Last changed on 17. March 2022, 17:13

on 17. March 2022, 07:19 by Bankey
Good fun. Thanks, @ Arlo Lipof :)

A: Glad you liked it!

Last changed on 17. March 2022, 06:57

on 17. March 2022, 03:48 by bigger
can S be 1

so S has to appear somewhere in the sum.

A: Good point, thank you. S is a proper *sum* value (of at least two digits). It appears at least once as a box sum on each line.

Difficulty:2
Rating:77 %
Solved:17 times
Observed:8 times
ID:0009DT

Variant combination New Online solving tool

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Solution code:

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