6 9 2 8 7 3 4 6 2 3 2 5 7 1 6 6 7 2 9 7 3 1 4 7 8 5 2 1 16-12-2017.......fiendish 16-12-2017 www.daily-sudoku-puzzle.com

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