6 2 1 5 8 5 4 6 3 7 4 2 8 9 2 5 6 8 7 9 3 9 6 3 4 3 1 4 2 21-09-2017.......meio 21-09-2017 www.daily-sudoku-puzzle.com

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