6 7 3 5 3 5 3 2 8 1 6 9 2 5 1 8 5 7 1 9 4 1 7 9 6 4 2 8 4 6 04-02-2021.......hard 04-02-2021 www.daily-sudoku-puzzle.com

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

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