ABBA
(Published on 16. August 2025, 06:20 by Greenscribble24)
AB Series:
ABABAABBA
BBABB
AB Squared
Triangular Letters
Now I Know My ABCs
Rules:
Place 5 As and 4 Bs in every row, column, and 3x3 reigon.
The sequence of letters on a grey line must read the same forward and backward.
At least one B must appear in the 4 cells surrounding a circle clue.
Solution code: Column 7
Last changed on on 27. August 2025, 08:30
Solved by Megalobrainiac, Firmus, RockyRoer, Joyofrandomness, ludvigr04, ZeroNickel, RailMan, h5663454, moss, TaeChi, mjozska1985, Torvelo, Zibl, csilva, Rollo, DiMono, mikisfmc, Breaduko, misko, paranoid, pepe74287, CalvinM, xiaozhu, Frank Puzzles, LuridGraph, Jastucreudo, Selsted, Mark Sweep
Comments
on 9. January 2026, 13:53 by CHalb
Please add the Sudoku tag.
on 28. November 2025, 11:06 by CHalb
Please add the Sudoku tag.
on 20. August 2025, 16:41 by Torvelo
Several beautiful logical steps there. To me this felt a bit like removing all unnecessary parts from sudoku and keeping the more interesting pure set-theoretic deductions.
on 16. August 2025, 14:14 by RockyRoer
Fun puzzle genre - simple, though not necessarily easy. I enjoy it and look forward to seeing more.
