4 7 2 9 9 8 1 6 7 1 2 3 9 4 7 5 6 1 7 9 1 3 5 6 4 2 9 2 3 8 15-10-2020.......medium 15-10-2020 www.daily-sudoku-puzzle.com

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