SudokuHard · Sheet 880 · 9×9owlpuzzles.comWrite 1 to 9 so every row, column and 3×3 box holds each number once.17821851759488792296156734937267949613853423948418954936341328956217614845791526516974513987367857631234252573687125
AnswersSudoku · Hard · Sheet 880owlpuzzles.com1735864291928571634641392875173256948584739126296418753317985462852647319469123587228673195497546283114398527656831974272465831939127456865284719383719642541952368737948132652135764895689421378753619244367295189214583763491876526572348911826957434512369487836174592794582316258497163961835274347216859175923648429658731683741925