Killer sudoku to print (free PDF)
Download free killer sudoku to print in PDF, ready for A4 or US Letter. No starting digits — the cage totals are all you get.
Sudoku book (PDF)
Download the free sudoku book in PDF: 20, 60 or 120 puzzles, with the solutions in a separate PDF. Ready to print on A4 or US Letter.
What to print
Orientation
Content
Sample puzzles
22
25
14
16
28
15
22
20
28
5
9
20
15
18
5
10
11
19
21
13
8
18
11
12
20
13
24
11
23
10
26
19
23
29
7
18
17
23
29
24
6
24
12
11
17
21
18
21
15
22
21
10
15
17
18
15
5
21
27
28
16
11
8
17
15
9
31
16
21
14
12
26
17
9
29
15
26
12
10
14
18
15
12
20
21
20
10
21
11
25
10
31
9
14
10
27
10
23
33
16
14
17
17
14
11
21
16
28
29
14
21
8
18
27
27
14
25
25
16
15
21
20
13
8
20
28
17
15
22
29
5
30
15
9
14
13
18
27
Why these puzzles?
Killer sudoku hands you an empty grid. Dotted cages each carry a total and never repeat a digit, so arithmetic replaces the given digits entirely.
How to print
Click "Download book", open the PDF and pick A4 or US Letter. Six puzzles per page; check yourself with the separate solutions PDF.
Solving tips
Work the small cages first, then the boxes they sit in: a cage total that admits only one digit combination hands you the whole box.
Frequently asked questions
How is killer sudoku different?
It gives you no starting digits. Instead, dotted cages each carry a total, and the digits inside a cage must add up to it without repeating.
Where do I start a killer sudoku?
With the smallest cages. Few digit combinations fit a low total, so a two-cell cage adding to 3 can only be 1 and 2 — and those forced pairs open up the box.
Are new killer sudoku puzzles added regularly?
Yes. We publish fresh puzzles daily, so the killer sudoku book draws from a growing archive.