Sudoku ngumu sana ya kuchapisha (PDF ya bure)
Download Sudoku ngumu sana as a free printable PDF, ready for pencil-and-paper solving.
Kitabu cha Sudoku (PDF)
Pakua bure kitabu cha sudoku cha kiwango cha ngumu sana kwa PDF: mafumbo 20, 60 au 120, na majibu kwenye PDF tofauti. Tayari kuchapishwa kwenye A4 au US Letter.
Viwango vingine
Hakiki
1
4
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7
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4
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9
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7
Kwa nini sudoku hizi?
Sudoku ngumu sana 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 sana, start with the most constrained rows, columns and boxes.
Maswali ya mara kwa mara
Who is Sudoku ngumu sana for?
Sudoku ngumu sana hutoa mantiki inayolingana na kiwango chake.
How should I solve Sudoku ngumu sana?
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.
Jifunze mbinu
Kumbukumbu ya mwaka
Ngumu Sana — Kitabu cha Sudoku 2026
Ngumu Sana — Kitabu cha Sudoku 2025
Ngumu Sana — Kitabu cha Sudoku 2024
Ngumu Sana — Kitabu cha Sudoku 2023
Ngumu Sana — Kitabu cha Sudoku 2022
Ngumu Sana — Kitabu cha Sudoku 2021
Ngumu Sana — Kitabu cha Sudoku 2020
Ngumu Sana — Kitabu cha Sudoku 2019
Ngumu Sana — Kitabu cha Sudoku 2018
Ngumu Sana — Kitabu cha Sudoku 2017
Ngumu Sana — Kitabu cha Sudoku 2016
Ngumu Sana — Kitabu cha Sudoku 2015
Ngumu Sana — Kitabu cha Sudoku 2014
Ngumu Sana — Kitabu cha Sudoku 2013
Ngumu Sana — Kitabu cha Sudoku 2012
Ngumu Sana — Kitabu cha Sudoku 2011
Ngumu Sana — Kitabu cha Sudoku 2010
Ngumu Sana — Kitabu cha Sudoku 2009
Ngumu Sana — Kitabu cha Sudoku 2008
Ngumu Sana — Kitabu cha Sudoku 2007
Ngumu Sana — Kitabu cha Sudoku 2006
Ngumu Sana — Kitabu cha Sudoku 2005