| 4 Cryptography Challenges completed by riza01 | |||
|---|---|---|---|
| # | Challenge Name | Points | Time |
| 51 | Ra's Happy Curse | 50 | 2011-08-04 09:22:02 |
| 8 | Prime Factor Hangman | 50 | 2011-08-03 20:46:34 |
| 23 | Concentric Circle Cipher | 200 | 2011-07-30 00:05:31 |
| 4 | Dmitri's Substitution Cipher | 100 | 2011-07-29 23:12:50 |