Hard Sudoku 2006 to print (free PDF)
Download every hard Sudoku from 2006 — 365 puzzles — as a free printable PDF.
Sample puzzles
3
2
8
1
7
5
1
5
4
7
1
7
9
4
1
8
9
6
9
7
1
5
9
3
6
3
4
2
4
1
6
9
1
8
3
5
6
2
5
1
5
2
7
3
8
3
9
1
4
6
1
8
5
7
9
6
7
4
1
5
8
6
3
6
1
8
2
6
9
4
7
4
2
3
9
5
4
8
1
2
7
6
5
8
4
6
2
5
6
9
1
9
8
6
9
4
1
7
8
6
2
4
4
3
1
2
7
3
7
5
6
8
4
1
9
2
7
9
3
4
8
1
4
7
3
7
8
2
4
3
5
8
1
8
7
9
5
6
2
1
9
6
7
3
6
9
5
6
3
4
7
4
8
3
9
5
6
1
9
5
1
4
2
2
1
7
3
9
8
5
8
6
Other years
Hard — Sudoku book 2026
Hard — Sudoku book 2025
Hard — Sudoku book 2024
Hard — Sudoku book 2023
Hard — Sudoku book 2022
Hard — Sudoku book 2021
Hard — Sudoku book 2020
Hard — Sudoku book 2019
Hard — Sudoku book 2018
Hard — Sudoku book 2017
Hard — Sudoku book 2016
Hard — Sudoku book 2015
Hard — Sudoku book 2014
Hard — Sudoku book 2013
Hard — Sudoku book 2012
Hard — Sudoku book 2011
Hard — Sudoku book 2010
Hard — Sudoku book 2009
Hard — Sudoku book 2008
Hard — Sudoku book 2007
Hard — Sudoku book 2006
Hard — Sudoku book 2005
All Hard books