1 5 3 2 6 7 4 5 7 4 6 4 2 5 8 7 5 8 7 2 4 9 3 6 8 2 6 9 1 5 05-01-2021.......hard 05-01-2021 www.daily-sudoku-puzzle.com

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

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