German Sums 2 (Little Killer Edition)
(Published on 31. March 2026, 23:30 by SennyK)
After a very good feedback I got from you with my new German Sums constraint, I come to you with another puzzle from this series! :-)
Testers' estimated difficulty 2.5*
I hope you will enjoy and I would be really grateful for all the comments and ratings.
Normal sudoku rules apply.
German Sums (Little Killer): A clue outside the grid gives the sum of all continuously diagonally adjacent digits with a difference of at least 5 up to (and not including) the first digit with a difference of 4 or less along the indicated diagonal from the direction of the clue. A digit in the first cell is always included in the sum. Digits may repeat if allowed by other rules.
For example, if diagonal starting in R1C4 going South-East is 492648, then the sum would be 15 (4+9+2) from the upper-left side and 8 from the bottom-right side.
★☆☆☆☆: 1, 2, 4, 5, 6, 12, 15, 17, 23, 26, 27, 31, 32, 46, 47
★★☆☆☆: 3, 7, 8, 10, 11, 13, 14, 16, 18, 20, 24, 25, 29, 30, 34, 35, 38, 40, 42, 45
★★★☆☆: 9, 19, 21, 22, 28, 33, 37, 38, 41, 44, 45
★★★★☆: 36, 39, 43 German Sums Series:
★★☆☆☆: 1
Shading/Ying-Yang:
★★☆☆☆: Pretty Odd Shaded Area
★★★☆☆: (+5)-Yang, Negative 8 YY
★★★★☆: Aim High! (YY)
★★★★★: Why-Why? Modifiers:
★☆☆☆☆: Borrower
★★★☆☆: Modified Flat Mates, Neighbourhood Watch Fog of War:
★☆☆☆☆: Erica 12, Erica 17
★★☆☆☆: It's What You Do in the Dark That Puts You in the Light, Find It All, What the Fog?, Erica 20, Erica 29
★★★☆☆: Broken Flashlight in the Dark Pencil Puzzle/Sudoku Hybrid:
★★☆☆☆: Masyu (Short) Sudoku, Heyawake Sudoku (Given Regions)
★★★☆☆: Tetromino Sudoku
★★★★★: Heyawake Sudoku
Pairometers:
★★☆☆☆: Pairometers (6x6 Pack 1), Pairometers
★★★☆☆: Pairometers (6x6 Pack 2), Pairometers (6x6 Pack 3) Various Puzzles:
★☆☆☆☆: Blown Fuses in Electrical Installation, Let Me Introduce Myself, French Wrench, GAS Regional Constraints, Quadsumes, Snack Latin Arrows, Sarah
★★☆☆☆: Symmetrical Fan, Night Club, Important Hour on the Clock, What Was the Sum Again?, Disgroup Joints, 10-Arrows, Antiking Dutch Skyscrapers, (Not so) Little Killers, Indexing Sword, Larna's HoneyMoon
★★★☆☆: Cops & Robbers, Positive Symmetry, Doppelgänger Killer 1-25, Region Whisper Line, Christmas Chaos
★★★★☆: Liars. Liars Everywhere., Sandwiched XV Squishmates, Fireworks 2025, (Yin)German Pairrows, Little Galaxy, 2x Solution
★★★★★: Any NEWS?, Potentially Pointer, Possibly Parity Party
Solution code: Ninth (9th) column of the grid from top to bottom.
Comments
on 1. April 2026, 22:30 by MattJones
Really clever idea, and (to me) a super-hard break in. Pretty smooth after that. More, please!
on 1. April 2026, 17:10 by Neonesque
This is quite a nice constraint and I'm looking forward to more ideas with it.
on 1. April 2026, 01:49 by thomamas
Lovely. I thought this was going to be very very hard, but then everything started falling into place.
on 31. March 2026, 23:56 by sujoyku
What a lovely follow-up! I found it quite a bit harder than the first example and given 3* for difficulty. Thanks a lot for this fun puzzle, SennyK!
