5 6 1 9 1 4 5 2 3 8 2 6 4 8 9 3 7 7 5 4 9 1 4 7 4 2 6 7 1 5 4 8 3 2 3 6 4 19-08-2017.......facil 19-08-2017 www.daily-sudoku-puzzle.com

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