Logic Masters Deutschland e.V.

Sum-thing Dif-ferent

(Published on 30. March 2025, 01:16 by Stephyonike)

By Stephyonike

Solve on SudokuPad

Sudoku: Normal sudoku rules apply. Place the digits 1 through 9 once each in every row, column, and 3x3 box.

Killer Cages: Digits in a cage do not repeat and sum to the value in the top left corner of that cage.

Kropki Dots: Digits separated by a white kropki dot are consecutive. Digits separated by a black kropki dot are in a 2:1 ratio (i.e. one digit is double the other).

SumDif Lines: On each light orange line, circles separate that line into segments where the circled digits are the differences between the sums of their two adjacent segments on that line. Digits can repeat on a line, if allowed by sudoku. To avoid confusion, if a segment is of length one, its sum is just the value of its digit.

Examples:

1-2-(7)-6-4 is a valid line because 1+2=3, 6+4=10, and the difference between 3 and 10 is 7.

1-2-(7)-6-4-(3)-8-5 is an extended version of the first example and is also a valid line. The 1-2 and 6-4 segments are connected by a 7, and the 6-4 and 8-5 segments are connected by a 3.

Solution code: Row 1


Solved by claymategirl, mihel111, raj64107, DanishDynamite, Ambrose, SKORP17, gdc, liap1907, jalebc, lancer102rus, 10feet, Julianl, Luaryo
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Comments

on 31. March 2025, 14:40 by 10feet
This is a nice puzzle to introduce the new constraint. I like the possibilities of the sumdiff constraint and would love to see it in a more difficult puzzle. Thanks.

on 30. March 2025, 15:20 by Ambrose
A very fun constraint and well executed!

Difficulty:3
Rating:83 %
Solved:13 times
Observed:4 times
ID:000MNG

Variant combination

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Solution code:

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