| Date | User | Challenge | Score |
| Astorice | Great Snakes | 3 | |
| dpardina | Hex | 5 | |
| jfvilla | Bytes and Big Integers | 10 | |
| Franh28 | Favourite byte | 20 | |
| Franh28 | XOR Properties | 15 | |
| Ugocline | Hex | 5 | |
| jfvilla | Base64 | 10 | |
| Franh28 | XOR Starter | 10 | |
| dpardina | ASCII | 5 | |
| Ugocline | ASCII | 5 | |
| jfvilla | Hex | 5 | |
| Franh28 | Bytes and Big Integers | 10 | |
| dhufe | You either know, XOR you don't | 30 | |
| jfvilla | ASCII | 5 | |
| Ugocline | Great Snakes | 3 | |
| Shy_mp3 | Modular Arithmetic 2 | 20 | |
| jfvilla | Great Snakes | 3 | |
| jfvilla | Finding Flags | 2 | |
| Bendakid | Favourite byte | 20 | |
| CyberDestiny | Finding Flags | 2 | |
| ayman711 | Beatboxer | 150 | |
| ayman711 | Paper Plane | 120 | |
| ayman711 | Forbidden Fruit | 150 | |
| Shy_mp3 | Modular Arithmetic 1 | 20 | |
| Antonio6459 | Monoprime | 30 | |
| ayman711 | Computing Shared Secrets | 30 | |
| ayman711 | WOTS Up 2 | 90 | |
| ayman711 | WOTS Up | 75 | |
| ayman711 | Merkle Trees | 25 | |
| ayman711 | Invariant | 250 | |
| ayman711 | Mixed Up | 120 | |
| ayman711 | MDFlag | 125 | |
| ayman711 | MD0 | 80 | |
| ayman711 | No Difference | 175 | |
| ayman711 | Twin Keys | 100 | |
| Shy_mp3 | Extended GCD | 20 | |
| NicoO | Round Keys | 20 | |
| ayman711 | PriMeD5 | 100 | |
| ayman711 | Hash Stuffing | 50 | |
| ayman711 | Collider | 50 | |
| ayman711 | The Matrix Revolutions | 125 | |
| ayman711 | The Matrix Reloaded | 100 | |
| ayman711 | The Matrix | 75 | |
| ayman711 | Script Kiddie | 70 | |
| ayman711 | Static Client 2 | 120 | |
| ayman711 | Additive | 70 | |
| ayman711 | Static Client | 100 | |
| ayman711 | Export-grade | 100 | |
| ayman711 | Parameter Injection | 60 | |
| ayman711 | Deriving Symmetric Keys | 40 |
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