What Was the Sum Again?
(Published on 6. November 2025, 17:15 by SennyK)
I hope you will enjoy my fifteenth puzzle.
I would be really grateful for all the comments and ratings.
Normal sudoku rules apply.
Arrow: Digits along an arrow sum to the number in the attached pill read from left to right or from top to bottom.
German whisper: Neighbouring/adjacent digits along a green line have a difference of at least 5.
Equal-sum line: Each blue line in the grid has the same sum of digits (not to be confused with region sum lines).
Sandwich: A clue outside the grid gives the sum of the digits appearing between the 1 and the 9 in that row/column.
If you liked this puzzle, I recommend trying out my other puzzles: The Erica Series:★☆☆☆☆: 1, 2, 4, 5, 6, 12, 15, 17, 23, 26, 27
★★☆☆☆: 3, 7, 8, 10, 11, 13, 14, 16, 18, 20, 24, 25
★★★☆☆: 9, 19, 21, 22 Shading/Ying-Yang:
★★☆☆☆: Pretty Odd Shaded Area
★★★☆☆: (+5)-Yang, Negative 8 YY
★★★★★: Why-Why? 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
★★★☆☆: Broken Flashlight in the Dark Pencil Puzzle/Sudoku Hybrid:
★★☆☆☆: Masyu (Short) Sudoku
★★★☆☆: Tetromino Sudoku
Various Puzzles:
★☆☆☆☆: Blown Fuses in Electrical Installation, Let Me Introduce Myself, French Wrench
★★☆☆☆: Symmetrical Fan, Night Club, Important Hour on the Clock, What Was the Sum Again?, Disgroup Joints, 10-Arrows, Antiking Dutch Skyscrapers
★★★☆☆: Cops & Robbers, Positive Symmetry, Doppelgänger Killer 1-25
★★★★☆: Liars. Liars Everywhere.
Solution code: Third (3rd) column of the grid from top to bottom.
Comments
on 7. November 2025, 12:00 by SirThomas
It was a blast solving it, thanks for creating!
on 6. November 2025, 23:29 by Ragna
Fun puzzle. Not so easy. Thank you. :-)
on 6. November 2025, 22:44 by dzamie
That was pretty fun! Wasn't terribly hard to work out the basics of each constraint: the arrows were simple enough, and that basically narrowed down the lines' sum immediately - but they all worked off each other pretty nicely!
on 6. November 2025, 19:30 by Teithiwr
Nice flow to this one, even though it took me a while. Thank you - will check out your other puzzles!
