Ain't No Way (with Calvinball)
(Published on 11. September 2026, 01:52 by mathpesto)
A collaboration by Calvinball and Math Pesto.
Rules:
Normal sudoku rules apply.
Arrows: Values on an arrow sum to the value in its circle.
Doublers: There is exactly one "doubler" cell in each row, column, and box. Digits in a doubler cell have their value doubled (e.g. 5 becomes 10). Each digit is doubled exactly once.
Negators: There is exactly one "negator" cell in each row, column, and box. Digits in a negator cell have their opposite value (e.g. 5 becomes negative 5). Each digit is negated exactly once.
Note: A cell can be both a doubler and negator cell (e.g. 5 becomes negative 10).
Solve online:
SudokuPad (with note-taking space)
SudokuPad (without note-taking space)
Solution code: VALUES of cells in column 9 (e.g. 101234678-9 where first cell is a doubled 5 and last cell is a negated 9)
Comments
yesterday, 15:52 by mihel111
That's some piece of a puzzle.
on 13. September 2026, 17:17 by Djirt
Спасибо, бриллиант!
on 13. September 2026, 12:44 by Lizzy01
Very nice puzzle, loved it!
I had an ain't pun title a while ago too,
if you wanna check it out here's the link:
https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=000M8V
on 13. September 2026, 11:27 by vukkarak
I did not spoil the 100% rating, because it is just a pure logic and fun from the beginning to the end!
on 13. September 2026, 08:48 by Christounet
Great puzzle! With lots of surprising moments throughout. Thanks :)
on 13. September 2026, 01:10 by amirs
Beautiful challenging puzzle. I kept getting confused by the ruleset until it finally clicked. And thanks for the note-taking space, that's very useful!
on 12. September 2026, 23:20 by Astraeus
Hoooooey that was a doozy! Some of the trickiest math logic I've had to do in a while, but still felt beautifully natural and never ground to a halt. Thank you both, Mathball!
on 11. September 2026, 21:19 by Draxie
Fantastic puzzle! Beautiful break in, some tough middle bits and an ending flourish. Thank you!
on 11. September 2026, 20:11 by Myxo
Lovely!
on 11. September 2026, 14:44 by Snookerfan
Brilliant puzzle! Took me some time to get used to the rules (meaning really understand them), but after they sank in, it was a pleasant and rewarding solve. Thanks!
on 11. September 2026, 08:15 by ThePedallingPianist
Loved this! The break in was clear and very satisfying, then I found the mid game quite hard, showing how much logical variety you were able to cram in! Fantastic idea and execution, looking forward to the next Mathball puzzle! :)
on 11. September 2026, 01:59 by Calvinball
I had a blast working on this with you Pesto! Really pleased with this puzzle, and hope we get to do it again someday :D
