3 6 1 9 4 6 8 3 8 2 5 4 6 9 1 2 8 2 4 3 8 4 9 7 7 8 3 1 1 4 2 5 1 9 3 7 17-02-2021.......medium 17-02-2021 www.daily-sudoku-puzzle.com

5 7 3 4 6 1 9 8 2 4 6 9 8 2 3 5 7 1 1 8 2 7 5 9 4 3 6 6 9 4 3 1 7 2 5 8 7 2 5 6 9 8 1 4 3 3 1 8 2 4 5 6 9 7 2 4 7 5 8 6 3 1 9 9 3 6 1 7 4 8 2 5 8 5 1 9 3 2 7 6 4

4=>(1,4) | 8=>(1,8) | 2=>(1,9) | 1=>(3,1) | 1=>(6,2) | 3=>(8,2) | 7=>(1,2) | 7=>(3,4) | 4=>(4,3) | 5=>(5,3) | 6=>(8,3) | 7=>(5,1) | 8=>(5,6) | 2=>(2,5) | 7=>(8,5) | 8=>(8,7) | 9=>(7,9) | 5=>(1,1) | 8=>(9,1) | 9=>(8,1) | 9=>(2,3) | 7=>(2,8) | 1=>(2,9) | 9=>(3,6) | 7=>(4,6) | 9=>(5,5) | 4=>(7,2) | 6=>(9,8) | 4=>(9,9) | 2=>(7,1) | 5=>(2,7) | 5=>(9,2) | 6=>(3,9) | 3=>(3,8) | 1=>(5,7) | 5=>(4,8) | 2=>(9,6) | 3=>(4,4) | 2=>(6,4) | 6=>(5,4) | 3=>(5,9) | 6=>(6,7) | 5=>(7,4) | 5=>(6,6) | 6=>(7,6) |