7 1 3 9 8 5 7 4 7 5 2 4 5 8 9 1 2 3 6 9 6 8 4 3 6 9 4 2 16-04-2018.......hard 16-04-2018 www.daily-sudoku-puzzle.com

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

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