50 Antiknight (50mathSWU)
(Published on 16. July 2026, 08:40 by ivaylagergova)
Normal Sudoku rules apply.
Antiknight: Cells a knight's move apart cannot contain the same digit.
SQUARES = even digits.
CIRCLES = odd digits.
X between two orthogonally adjacent cells = sum 10.
V between two orthogonally adjacent cells = sum 5.
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
Solved by jimblek, Reisen, anton_anton, fergus, flaemmchen, keenbowl, FroodOfHoops, RadchenkoAleksandr, SS20x3, tiuhto, ukjohnd, TroublesomeOrca, XhcnoirX, schnitzl, KlausRG, VeTaurus, TeddieMilo, RailMan, ... Jorava, imagle, Crul, clapslat, frosto, cmigas, trencaclosques, ZetaBean, sujoyku, turtleducktess, pmatos, ly_ra17, H.I. McDunnough, dittberner, jgarber, ManuH, Photyne, Krisz, claire38
Comments
on 16. July 2026, 15:23 by carpet_stick
Incredibly smooth solve, very fun, solid puzzle. 10/10
