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Resources tagged with Codes and cryptography similar to Procedure Solver:

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There are 18 results

Broad Topics > Applications > Codes and cryptography

The Best Card Trick?

Stage: 3 and 4 Challenge Level:

Time for a little mathemagic! Choose any five cards from a pack and show four of them to your partner. How can they work out the fifth?

Up a Semitone?

Stage: 5 Challenge Level:

Fifth challenge cipher

Ip?

Stage: 5 Challenge Level:

Seventh challenge cipher

A Fine Thing?

Stage: 5 Challenge Level:

Second challenge cipher

Semicircle

Stage: 5 Challenge Level:

Fourth challenge cipher

Jluuis or Even Asutguus?

Stage: 5 Challenge Level:

Sixth challenge cipher

Vital?

Stage: 5 Challenge Level:

Third challenge cipher

Stage 5 Cipher Challenge

Stage: 5 Challenge Level:

Can you crack these very difficult challenge ciphers? How might you systematise the cracking of unknown ciphers?

Probably a Code?

Stage: 5 Challenge Level:

Is the regularity shown in this encoded message noise or structure?

Secondary Cipher Challenge Part 1

Stage: 3 and 4 Challenge Level:

Here is the start of a six-part challenge. Can you get to the end and crack the final message?

Secret Transmissions

Stage: 4 Challenge Level:

How can Agent X transmit data on a faulty line and be sure that her message will get through?

Substitution Transposed

Stage: 3 and 4 Challenge Level:

Substitution and Transposition all in one! How fiendish can these codes get?

Cipher Challenge Toolkit

Stage: 3, 4 and 5 Challenge Level:

Our toolkit removes the drudgery of codebreaking while leaving you to do the hard thinking!

More Secret Transmissions

Stage: 5 Challenge Level:

In 'Secret Transmissions', Agent X could send four-digit codes error free. Can you devise an error-correcting system for codes with more than four digits?

James's Code Challenge

Stage: 2, 3, 4 and 5 Challenge Level:

The Enigma Project's James Grime has created a video code challenge. Watch it here!

First cipher

Keeping it Safe and Quiet

Stage: 2, 3, 4 and 5

Simon Singh describes PKC, its origins, and why the science of code making and breaking is such a secret occupation.

Transposition Cipher

Stage: 3 and 4 Challenge Level:

Can you work out what size grid you need to read our secret message?