| Date | User | Challenge | Score |
| crumbs | Base64 | 10 | |
| thudbutt | XOR Properties | 15 | |
| SAATVIK | Point Addition | 30 | |
| crypto_07 | Great Snakes | 3 | |
| mohamed750boukh | Favourite byte | 20 | |
| Sho3la | Bytes and Big Integers | 10 | |
| kareem_abousheta | Hex | 5 | |
| crumbs | Hex | 5 | |
| JPM | XOR Properties | 15 | |
| dimi | Base64 | 10 | |
| JPM | XOR Starter | 10 | |
| mboh2 | Keyed Permutations | 5 | |
| Menshikii | Hex | 5 | |
| DeViator | Parameter Injection | 60 | |
| Codru | Computing Public Values | 25 | |
| JoeBiden | Chinese Remainder Theorem | 40 | |
| crypto_07 | Finding Flags | 2 | |
| thudbutt | XOR Starter | 10 | |
| marco44 | Hex | 5 | |
| crumbs | ASCII | 5 | |
| Fluvfy | Modular Arithmetic 2 | 20 | |
| crumbs | Great Snakes | 3 | |
| marco44 | ASCII | 5 | |
| Codru | Generators of Groups | 20 | |
| Menshikii | ASCII | 5 | |
| Koalko | ECB Oracle | 60 | |
| Sho3la | Base64 | 10 | |
| JPM | Bytes and Big Integers | 10 | |
| JPM | Base64 | 10 | |
| jjww | Base64 | 10 | |
| thudbutt | Bytes and Big Integers | 10 | |
| yorck | Base64 | 10 | |
| crumbs | Finding Flags | 2 | |
| thudbutt | Base64 | 10 | |
| filippodipaola | Base64 | 10 | |
| jjww | Hex | 5 | |
| dimi | Hex | 5 | |
| Menshikii | Great Snakes | 3 | |
| aosabi | Adrien's Signs | 80 | |
| jjww | ASCII | 5 | |
| JPM | Hex | 5 | |
| filippodipaola | Hex | 5 | |
| thudbutt | Hex | 5 | |
| yorck | Hex | 5 | |
| jjww | Great Snakes | 3 | |
| filippodipaola | ASCII | 5 | |
| yorck | ASCII | 5 | |
| Hack0 | Modular Inverting | 25 | |
| thudbutt | ASCII | 5 | |
| Fluvfy | Modular Arithmetic 1 | 20 |
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