Tetrafolium
(Published on 4. June 2025, 21:56 by ul-Rhymm)
Standard sudoku: in each row, column, and 3x3 region, each digit 1-9 appears exactly once.
Killer: in cages, digits do not repeat and sum to the value in the top left corner.
Modular lines: each set of three consecutive digits along a line contains one digit from {1/4/7}, one from {2/5/8}, and one from {3/6/9}.
Solution code: Row 5
Solved by SKORP17, ymhsbmbesitwf, Tacocat, RickiFerrara, Bjd, lianarox, by81996672, BlackWolf, jalebc, cmigas, snowden, peterkp, tgstar, butch02, Statistica, MAWA, paranoid, Luaryo, scushuaishuai, jlaitio, ... ehollins, crossoverdoc, brimmy, mse326, AIlyas, b413x, AvonD, Chishiri, Birte, misko, Shmartus, mezkur7, leo_the_real, Kallor, galium_odoratum, abed hawila, Kabcar, marhas, puzzlepandit
Comments
on 13. July 2025, 09:40 by puzzlepandit
Agreed with earlier comment that this has very smooth flow. Could be 2* difficult for solver if solver knows modular maths well.
on 5. June 2025, 01:53 by Tacocat
Very nice! Smooth solve as a coloring puzzle.
