4 3 1 6 9 2 5 1 8 2 3 5 1 5 8 9 5 9 3 7 6 3 8 4 9 6 7 2 7 6 5 9 1 4 9 8 15-01-2017.......easy 15-01-2017 www.daily-sudoku-puzzle.com

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

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