| Date | User | Challenge | Score |
| shorouqmou | Great Snakes | 3 | |
| shorouqmou | Finding Flags | 2 | |
| luciankane | ASCII | 5 | |
| alzzz | Square Eyes | 35 | |
| zhaopy | Modular Arithmetic 2 | 20 | |
| Manorom | Quadratic Residues | 25 | |
| luciankane | Great Snakes | 3 | |
| Spearmint4848 | ASCII | 5 | |
| Spearmint4848 | Great Snakes | 3 | |
| TurningPointer | Modular Square Root | 35 | |
| Yoshift | Flipping Cookie | 60 | |
| luciankane | Finding Flags | 2 | |
| ChickenJockey | Base64 | 10 | |
| Spearmint4848 | Finding Flags | 2 | |
| mayday13x | Bytes and Big Integers | 10 | |
| coreDumped79 | Bytes and Big Integers | 10 | |
| prohack | Bytes and Big Integers | 10 | |
| priyanshoon | Modular Arithmetic 1 | 20 | |
| coreDumped79 | Base64 | 10 | |
| coreDumped79 | Hex | 5 | |
| O_RT | You either know, XOR you don't | 30 | |
| coreDumped79 | ASCII | 5 | |
| coreDumped79 | Great Snakes | 3 | |
| __Username | Modular Arithmetic 1 | 20 | |
| coreDumped79 | Finding Flags | 2 | |
| mayday13x | Base64 | 10 | |
| mayday13x | Hex | 5 | |
| mayday13x | ASCII | 5 | |
| mayday13x | Great Snakes | 3 | |
| mayday13x | Finding Flags | 2 | |
| Whitney | Bringing It All Together | 50 | |
| Yoshift | ECB CBC WTF | 55 | |
| Whitney | Diffusion through Permutation | 30 | |
| ChickenJockey | Hex | 5 | |
| Whitney | Confusion through Substitution | 25 | |
| jusb3 | A True Genus | 175 | |
| Yoshift | ECB Oracle | 60 | |
| ChickenJockey | ASCII | 5 | |
| lcybr19 | Bytes and Big Integers | 10 | |
| O_RT | Favourite byte | 20 | |
| asfd98123rejk | Salty | 20 | |
| CryptoTurtle | Finding Flags | 2 | |
| Whitney | Round Keys | 20 | |
| Kaela | ECB Oracle | 60 | |
| alzzz | Salty | 20 | |
| M0xX | RSA or HMAC? Part 2 | 100 | |
| Whitney | Structure of AES | 15 | |
| Cherifi_Mohamed8 | Bytes and Big Integers | 10 | |
| Whitney | Resisting Bruteforce | 10 | |
| O_RT | XOR Properties | 15 |
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