Hard Sudoku 2015 to print (free PDF)
Download every hard Sudoku from 2015 — 365 puzzles — as a free printable PDF.
Sample puzzles
9
1
6
3
7
4
3
9
4
2
2
5
1
9
7
4
7
5
8
9
9
5
2
8
3
8
9
4
9
8
3
1
7
4
8
2
9
6
7
2
7
9
6
3
3
5
6
8
6
5
5
7
4
7
5
1
1
4
9
2
5
4
6
7
3
8
1
5
5
4
7
1
4
7
4
8
7
2
9
9
5
2
3
7
4
8
8
3
9
5
1
2
6
3
1
2
4
8
3
5
7
9
3
1
5
7
1
6
1
2
7
6
7
4
5
2
8
6
4
1
1
5
3
8
4
2
5
5
9
8
3
4
1
7
9
5
8
7
4
1
9
6
8
2
6
1
7
3
5
7
2
4
3
6
5
3
8
5
7
9
7
8
9
3
8
1
3
5
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