Quadruple Checking
(Published on 6. September 2021, 22:50 by timp1343)
Normal sudoku rules apply. The cells surrounding a quadruple circle must contain what is in the circle. Enjoy!
f-puzzles
Solution code: Row 2 and row 8.
Solved by SKORP17, apendleton, Nairi, cfop, jkl, soroush, flaemmchen, finger, han233ing, Krisonium, RadchenkoAleksandr, kousek-nebe, juventino188