Dutch Flat Mates: Y-Sums
(Published on 18. June 2025, 08:36 by Crusader175)
Other puzzles from Dutch Flat Mates series created by Flinty can be found in this spreadsheet.
Rules:
Normal sudoku rules apply.
Dutch Flat Mates: Every 5 in the grid must have a 1 directly above it or a 9 directly below it. It may have both, but it doesn't need both.
Y-Sums: Clues outside the grid indicate the sum of the first Y digit(s) in the corresponding direction. Y is the digit placed in the Xth cell in the corresponding direction, where X is the digit placed in the first cell in that direction.
Puzzle Link: SudokuPad
My youtube channel on solving sudoku: Crusader Puzzle
Solution code: Row 8
Comments
on 22. June 2025, 22:43 by MarthaB
I just kept going back to this puzzle, and finally got there. Proud moment, for me.
Reply: Well done! Thank you so much for solving MarthaB!
on 18. June 2025, 22:57 by da-hans
This one took some time. Very nice episode.
Reply: It took me some time too when I solved my first Y-Sums. Glad you liked the puzzle!
on 18. June 2025, 18:44 by Franjo
Never tried to solve a Y-sums puzzle before. At some points I was close to give up - too much pain for my brain! In the end I was exhausted but also satisfied. Thank you very much for creating and sharing this lovely monster.
Reply: Thank you for persevering Franjo!
on 18. June 2025, 15:29 by wuc
Great puzzle. For me the first YSum 4*. Otherwise maybe 3.5*. Very clever construction thx.
Reply: Glad you liked the puzzle! Thank you!
on 18. June 2025, 14:34 by PierreTombal
Looks like somebody cheated. The solve count here is currently higher than on SudokuPad.
Reply: This is new sudokupad link. Some test solve it using older link.
on 18. June 2025, 14:31 by Donatello_86
Very nice interactions with y-sums and Dutch flat mates
Reply: Thank you Donatello for the test solve help!
on 18. June 2025, 11:08 by marcmees
Very nice (max3* if catching break in soon). Thanks.
Reply: There's a mixed result on testing with 3* or 4*. Thanks marcmees!
on 18. June 2025, 09:18 by Flinty
Very nice puzzle, Y-Sums are lush. It would definitely be a 3/5 if our brains weren't already wired to X-Sums. :)
Reply: Appreciate the test solve and kind comment Flinty!
