eye catch image for how to use free download pdf for print

How to use free PDF file for print

We provide free download PDF files of newly uploaded puzzles of Sudoku 4×4, Number Blocks, CalcBlocks and Skyscrapers Puzzles.

Please read term of use below and use properly.

How to use

1. Donload a PDF file

Please access Sudoku 4×4, Number Blocks, CalcBlocks or Skyscrapers Puzzles and scroll down the page. Then you can download a PDF file by clicking the download button.

manual 1 download pdf file

2. Print out the PDF file

Next, please print out the PDF file by your printer.

manual 2 print out the pdf file

3. Copy files as needed

If you use it in your classroom, please copy the print as needed.

manual 3 copy files as you need

Term of use

You may use PDF files not only for personal use but commercial use. You don’t have to tell us that you used PDF files. But following three things are now allowed.

  1. Redistributing PDF files on the web or by emails
  2. Editing PDF files
  3. Selling PDF files


You may use PDF files for free but all rights for files are reserved by calcblocks.com.

You may think that there is no copyright on puzzle problems. But we committed to choose interesting problems from vast possibilities. We express our thoughts on these choices. Thus copying our puzzle problems are also limited.


We accept no responsibilities for any loss resulting from using PDF files.

Please note that this term of use will be changed without notice.