Sudoku ngumu ya kuchapisha (PDF ya bure)
Download Sudoku ngumu as a free printable PDF, ready for pencil-and-paper solving.
Hakiki
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Kwa nini uchague kiwango hiki?
Sudoku ngumu develops logical thinking and gives a challenge suited to its difficulty.
Jinsi ya kuchapisha
Click “Pakua kitabu”, open the PDF and choose A4 or US Letter. There are six fumbo per page.
Vidokezo vya kutatua
For Sudoku ngumu, start with the most constrained rows, columns and boxes.
Maswali ya mara kwa mara
Who is Sudoku ngumu for?
Sudoku ngumu hutoa mantiki inayolingana na kiwango chake.
How should I solve Sudoku ngumu?
Anza kwa kukagua safu, nguzo na visanduku 3×3, kisha tafuta nafasi za lazima.
Are new fumbo added?
Yes. New fumbo are added regularly and solutions are supplied separately.