| Date | User | Challenge | Score |
| grousey | ASCII | 5 | |
| Abuloha9ayyad | Saying Hello | 20 | |
| Abuloha9ayyad | Megalomaniac 3 | 120 | |
| Ayzarunn | Favourite byte | 20 | |
| dolphinned | You either know, XOR you don't | 30 | |
| grousey | Great Snakes | 3 | |
| grousey | Finding Flags | 2 | |
| Ayzarunn | XOR Properties | 15 | |
| Abuloha9ayyad | Missing Modulus | 80 | |
| shrey85 | Transparency | 50 | |
| shrey85 | CERTainly not | 30 | |
| shrey85 | Privacy-Enhanced Mail? | 25 | |
| shrey85 | Lemur XOR | 40 | |
| zzinc | Base64 | 10 | |
| Lamansh_1337 | ASCII | 5 | |
| Abuloha9ayyad | Noise Free | 40 | |
| Lamansh_1337 | Great Snakes | 3 | |
| Keylogger | Bytes and Big Integers | 10 | |
| whotheheckareyoi | Base64 | 10 | |
| Lamansh_1337 | Finding Flags | 2 | |
| Georgtrismegists | Base64 | 10 | |
| ARM4da | Hex | 5 | |
| jas1618 | ASCII | 5 | |
| whotheheckareyoi | Hex | 5 | |
| whotheheckareyoi | ASCII | 5 | |
| Ayzarunn | XOR Starter | 10 | |
| Abuloha9ayyad | Pairing-Based Cryptography | 50 | |
| whotheheckareyoi | Great Snakes | 3 | |
| whotheheckareyoi | Finding Flags | 2 | |
| Georgtrismegists | Hex | 5 | |
| Abuloha9ayyad | Mister Saplin's Preview | 80 | |
| Abuloha9ayyad | Couples | 100 | |
| Abuloha9ayyad | Let's Prove It | 120 | |
| Ayzarunn | Bytes and Big Integers | 10 | |
| Georgtrismegists | ASCII | 5 | |
| Abuloha9ayyad | Mister Saplins The Prover | 125 | |
| ARM4da | ASCII | 5 | |
| dolphinned | Favourite byte | 20 | |
| Abuloha9ayyad | Let's Prove It Again | 175 | |
| ARM4da | Great Snakes | 3 | |
| ARM4da | Finding Flags | 2 | |
| Ayzarunn | Base64 | 10 | |
| Ayzarunn | Hex | 5 | |
| Abuloha9ayyad | Invariant | 250 | |
| Ayzarunn | ASCII | 5 | |
| Georgtrismegists | Great Snakes | 3 | |
| Abuloha9ayyad | Beatboxer | 150 | |
| Georgtrismegists | Finding Flags | 2 | |
| isl4r | Adrien's Signs | 80 | |
| ahmedelkelawy | You either know, XOR you don't | 30 |
You are now level Current level