Sign Up/In You need to be signed-in to participate in any test.
PDF Viewer The puzzles will be provided in PDF format.
Make sure you have installed Acrobat Reader (or other compatible PDF viewer), so that you can open password-protected PDF files.
You can dowload the Acrobat Reader here.
Printer You can solve it with your mobile devices if it supports writing.
But we recommended you to print out the problem booklet to solve it with pencils
So make sure your printer is working.
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Try Out

You can tryout for each scoring system:     Scoring System 

STEP 1. Read the IB

Read the IB(Introduction Booklet): Tryout_IB_KCE.pdf

STEP 2. Download the PB

Download the PB(Puzzle Booklet) File and Open: Tryout_PB_KCE_PW.pdf

You need to Log In to proceed.  Login


If you cleared all the checklists below, you are good to go!

  • I could register & log-in.
  • I could request a password and open password-protected PDF File(Problem Booklet).
  • I could submit answers, and those answers were stayed when I refreshed this webpage.
  • (Try wrong format / wrong answers on purpose) I understood how this system handles wrong answers.
  • Countdown system worked correctly.
  • I got result(final points) as I expected.

If you have experienced any trouble, please contact us.