3 1 2 9 7 5 9 1 3 7 2 9 4 8 6 5 8 3 6 4 2 1 4 6 4 5 15-06-2020.......hard 15-06-2020 www.daily-sudoku-puzzle.com

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

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