SudokuHard · Sheet 480 · 9×9owlpuzzles.comWrite 1 to 9 so every row, column and 3×3 box holds each number once.169422387766435786153862957382619545868139492159752687786534621752533187968382157814246298591853648162467946368924
AnswersSudoku · Hard · Sheet 480owlpuzzles.com1681974235529318764743265981916437852854129376372586149497851623138642597265793418268324195712495783679586314281743256943957628156219847334172569825638971497861432537184539623941267852569871439352614784827395166718452398695743215273186941436928574378652941691438257542917863253789614987146325416325798824563179765891432139274586