Quad Day
(Published on 2. August 2025, 14:45 by cygne)
Quad Day by Cygne
Rules
- Normal Sudoku rules apply.
- Quadruples: the digits in the circles must each appear at least once among the surrounding four cells.
Play in SudokuPad
My previous puzzle Pop Quiz! got me thinking quite a bit about quads with all even digits on them, and I thought I'd like to put together an easier puzzle that focuses more exclusively on that concept. Hope you enjoy!
Solution code: Row 9, left to right
Solved by jalebc, houellebecqqq, iamissam, hige, redgecko, GorgeousNicko, jadezki, killje, henter, fuxia, tiuhto, Zibl, SKORP17, BBoris, Matti64, tryote, Xinory, Philologos, zeha, Joyofrandomness, Mathemagier, ... bugsduggan, Milococo, snowflake, lmdemasi, Titatovenoor, rae_cat, Harold, SquareCat, Emigma, Zarlino, Frank Puzzles, me and the paws, ukodus163, noodlehead, BlackApolloX, m_and_m_toastie, nunc
Comments
on 28. August 2025, 20:48 by SquareCat
Fun puzzle, thanks!
Last changed on 3. August 2025, 10:55
on 3. August 2025, 10:54 by abadx
Extenuating scanning exercise ;). 2 stars from me
on 3. August 2025, 08:03 by Peteronium
Thank you for this irritating puzzle :). Very easy, but also very easy to make mistakes; I needed 2 restarts. Loved it.
on 2. August 2025, 22:17 by sujoyku
Thank you for this nice puzzle, cygne!
on 2. August 2025, 17:56 by Matti64
very easy.
