| Date | User | Challenge | Score |
| Sagnik | XOR Properties | 15 | |
| 3llan | Greatest Common Divisor | 15 | |
| Amr_Mohsen | Great Snakes | 3 | |
| Asterix22 | Factoring | 15 | |
| doublejue | Generators of Groups | 20 | |
| Amr_Mohsen | Finding Flags | 2 | |
| DaRealRob | ASCII | 5 | |
| 3llan | You either know, XOR you don't | 30 | |
| Highlander2 | Modulus Inutilis | 50 | |
| Highlander2 | Salty | 20 | |
| Highlander2 | Manyprime | 40 | |
| Redin | XOR Properties | 15 | |
| Z3VS | XOR Properties | 15 | |
| 3llan | Favourite byte | 20 | |
| runef | XOR Properties | 15 | |
| ghaisan | Adrien's Signs | 80 | |
| 3llan | XOR Properties | 15 | |
| Quadrium | Great Snakes | 3 | |
| jmusic | Symmetry | 50 | |
| LittleHacker | Favourite byte | 20 | |
| 3llan | XOR Starter | 10 | |
| Derte | XOR Properties | 15 | |
| maholyram | Finding Flags | 2 | |
| lgatto | Favourite byte | 20 | |
| Quadrium | Finding Flags | 2 | |
| keks0 | You either know, XOR you don't | 30 | |
| Highlander2 | Monoprime | 30 | |
| DaRealRob | Great Snakes | 3 | |
| Highlander2 | Factoring | 15 | |
| 3llan | Bytes and Big Integers | 10 | |
| DaRealRob | Finding Flags | 2 | |
| 3llan | Base64 | 10 | |
| neowo | Jack's Birthday Confusion | 30 | |
| 3llan | Hex | 5 | |
| ashermkn1 | Dancing Queen | 120 | |
| neowo | Jack's Birthday Hash | 20 | |
| 3llan | ASCII | 5 | |
| ashermkn1 | Stream of Consciousness | 80 | |
| keks0 | Favourite byte | 20 | |
| ashermkn1 | Logon Zero | 80 | |
| Asterix22 | RSA Signatures | 25 | |
| Gauliom | Modular Arithmetic 2 | 20 | |
| c1ph3rm4n | Base64 | 10 | |
| c1ph3rm4n | Hex | 5 | |
| lgatto | XOR Properties | 15 | |
| c1ph3rm4n | ASCII | 5 | |
| c1ph3rm4n | Great Snakes | 3 | |
| Z3VS | XOR Starter | 10 | |
| c1ph3rm4n | Finding Flags | 2 | |
| Gauliom | Modular Arithmetic 1 | 20 |
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