9 1 2 5 2 1 6 8 9 6 8 7 5 8 3 4 1 7 8 3 8 9 7 5 4 6 9 6 07-10-2018.......hard 07-10-2018 www.daily-sudoku-puzzle.com

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

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