Region Sum 1976 (50mathSWU)
(Published on 19. July 2026, 11:44 by ivaylagergova)
Normal Sudoku rules apply.
Region Sum Lines: For each line, digits on the line have an equal sum N within each box it passes through.
Quadruples: Every digit in a circle has to be assigned to one of the surrounding cells.
Created by Ivayla Gergova for the Sudoku Competition celebrating 50 Years of Mathematics at South-West University "Neofit Rilski" in Blagoevgrad, Bulgaria.
Play online in SudokuPad.
Solution code: Row 9
Last changed on on 19. July 2026, 13:38
Solved by by81996672, Aaravos, ficko, Saltensity, hige, zonny, fuxia, Mozart40, Nagesh, schnitzl, SKORP17, Snookerfan, Ph1nt, sujoyku, zimorodok, thebriskt, Uhu, Vaccinia, rifflter, deltameth, aile_vtb, ... pepe74287, ravan, RedBarchetta, trubiso, sedici, Myfyr MJ, jgarber, cmigas, plinke, oranja, jalebc, SS20x3, Tompzini, mezkur7, farodin64, Ugyvedur, Crul, ebulku, StfC, 99jau99, Don_Huan, Photyne
Comments
on 20. July 2026, 19:49 by Myfyr MJ
Very nice and easy puzzle.
on 20. July 2026, 06:05 by APigthatflys
Nice puzzle, thank you :)
on 19. July 2026, 18:46 by Snookerfan
Lovely puzzle with some very nice sudoku disambiguations to finish. Thanks!
on 19. July 2026, 13:38 by ivaylagergova
Changed name.
