SudokuHard · Sheet 20 · 9×9owlpuzzles.comWrite 1 to 9 so every row, column and 3×3 box holds each number once.15346992659763358798236472479625611396835418946181324679421426337813623462899371223968161594684685127398169257968941829281986
AnswersSudoku · Hard · Sheet 20owlpuzzles.com1587134692912678543436529718649382175273951864851467239768243951395816427124795386259248617381395762474613258963574189242786935198132546727861394536957421815429873635649183278713524692397648517462815939835761421254396784528937163176259846981472354678453219941286735253971468187635942425719683369824571836542197792168354514397826