NC Science Olympiad
Codebusters 2017
Division: C - High School
Essential Standard Alignment:  
Event Rules: 2017 rules *This is a Wisconsin SO event that we have borrowed. These are the 2017 rules for NC, regardless of what the top of the page says.
National Event Page: Not a national event
Required Materials: Something to write with
Clarifications:
Under 4. Scoring: The bonus was reworded as:
    The time to decode the first question (in seconds) will be recorded. The timing bonus is equal to 3 x (600 - number of seconds to decode the first question).  If the team takes more than 10 minutes (600 seconds), then no bonus will be awarded. (e.g. if exactly 5 minutes are spent, the bonus is 900 points).  The maximum theoretical bonus is 1799 points.
 
   Under 5. Tie Breaker:  The following tie breaker sentence was added.
If there still is a tie, the scores on the highest point problems will be used in order with the team having the least letter difference from the solutions ranked higher.
(12/8/16)
Description: Teams will decode messages. This is a cryptology event.

Materials: Teams must bring something to write with. Event leaders will provide all materials.

Event Resources:
Cryptoclub
CIA - break the code
The Imitation Game
Cryptograms.org

Practice Test for the 2017 Tournament season.
Answer Key for the practice test.

Trial event from the State tournament 2016

Make your own codes:

Hill Cipher
   Encode/Decode Tool:  http://www.dcode.fr/hill-cipher 
 
Affine Cipher
   Encode/Decode Tool:   http://www.dcode.fr/affine-cipher
 
Vigenere Cipher
   Encode/Decode Tool: http://www.dcode.fr/vigenere-cipher 
 
Dancing Man Cipher
   Encode/Decode Tool: http://www.dcode.fr/dancing-men-cipher 


Photo and Video:

Pictures  
Video    
   
 
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