| Date | User | Challenge | Score |
| cherrie | ASCII | 5 | |
| cherrie | Great Snakes | 3 | |
| uglybarnacle | Quadratic Residues | 25 | |
| MF47 | Hex | 5 | |
| stellev | No Way JOSE | 20 | |
| RandyTheMan | Bytes and Big Integers | 10 | |
| dcazun | Base64 | 10 | |
| Damsssss | Gotta Go Fast | 40 | |
| stellev | JWT Secrets | 25 | |
| dcazun | Hex | 5 | |
| dcazun | ASCII | 5 | |
| dcazun | Great Snakes | 3 | |
| dcazun | Finding Flags | 2 | |
| entheo97 | Privacy-Enhanced Mail? | 25 | |
| MF47 | ASCII | 5 | |
| RandyTheMan | Base64 | 10 | |
| bhupen07_ | Base64 | 10 | |
| uglybarnacle | Modular Inverting | 25 | |
| RandyTheMan | Hex | 5 | |
| Damsssss | Non-Interactive | 35 | |
| RandyTheMan | ASCII | 5 | |
| bhupen07_ | Hex | 5 | |
| JonathanSDC8 | Passwords as Keys | 50 | |
| adriia0 | You either know, XOR you don't | 30 | |
| 0xFFFFFF | Triple DES | 60 | |
| bhupen07_ | ASCII | 5 | |
| RandyTheMan | Great Snakes | 3 | |
| sari_levinstein | Finding Flags | 2 | |
| bhupen07_ | Great Snakes | 3 | |
| bhupen07_ | Finding Flags | 2 | |
| Eliott | Computing Shared Secrets | 30 | |
| Wenennefer | Find the Lattice | 100 | |
| RandyTheMan | Finding Flags | 2 | |
| uglybarnacle | Modular Arithmetic 2 | 20 | |
| m4rked | CTRIME | 70 | |
| Ani28 | Great Snakes | 3 | |
| Eliott | Computing Public Values | 25 | |
| Kaoomp | ASCII | 5 | |
| uglybarnacle | Modular Arithmetic 1 | 20 | |
| Kaoomp | Great Snakes | 3 | |
| irammlix | Great Snakes | 3 | |
| entheo97 | Modular Inverting | 25 | |
| Kaoomp | Finding Flags | 2 | |
| openground | Euler's Totient | 20 | |
| irammlix | Finding Flags | 2 | |
| openground | Public Keys | 15 | |
| openground | Modular Exponentiation | 10 | |
| openground | Bean Counter | 60 | |
| Wenennefer | Blinding Light | 120 | |
| entheo97 | Modular Arithmetic 2 | 20 |
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