| Date | User | Challenge | Score |
| Anti_ | Vectors | 10 | |
| AkitsuHolmes | Legendre Symbol | 35 | |
| maxtrap | XOR Properties | 15 | |
| 0110dre | Gotta Go Fast | 40 | |
| shurayz | Invariant | 250 | |
| liangmeigang | ProSign 3 | 100 | |
| omar4444clsxlsck | Bytes and Big Integers | 10 | |
| omar4444clsxlsck | Base64 | 10 | |
| somesalmon | You either know, XOR you don't | 30 | |
| chelinh | Passwords as Keys | 50 | |
| somesalmon | Favourite byte | 20 | |
| omar4444clsxlsck | Hex | 5 | |
| rad0xus | Adrien's Signs | 80 | |
| omar4444clsxlsck | ASCII | 5 | |
| omar4444clsxlsck | Network Attacks | 5 | |
| Cr4sh0v3r | Bytes and Big Integers | 10 | |
| kurumi_11 | Modular Inverting | 25 | |
| omar4444clsxlsck | Great Snakes | 3 | |
| omar4444clsxlsck | Finding Flags | 2 | |
| HappyOnion | Greatest Common Divisor | 15 | |
| HappyOnion | Lemur XOR | 40 | |
| HappyOnion | You either know, XOR you don't | 30 | |
| kurumi_11 | Modular Arithmetic 2 | 20 | |
| silvereagle429 | Base64 | 10 | |
| silvereagle429 | Hex | 5 | |
| hakka52 | A True Genus | 175 | |
| silvereagle429 | ASCII | 5 | |
| silvereagle429 | Great Snakes | 3 | |
| silvereagle429 | Finding Flags | 2 | |
| HappyOnion | Favourite byte | 20 | |
| Cr4sh0v3r | Base64 | 10 | |
| HappyOnion | XOR Properties | 15 | |
| HappyOnion | XOR Starter | 10 | |
| Sigmaskat05 | Greatest Common Divisor | 15 | |
| Eagle_111 | Finding Flags | 2 | |
| ayget | Modular Arithmetic 2 | 20 | |
| HappyOnion | Encoding Challenge | 40 | |
| ErnestoVizoso | Great Snakes | 3 | |
| Eagle_111 | Keyed Permutations | 5 | |
| ayget | Modular Arithmetic 1 | 20 | |
| kurumi_11 | Modular Arithmetic 1 | 20 | |
| Megablaze | XOR Starter | 10 | |
| ErnestoVizoso | Finding Flags | 2 | |
| ayget | Extended GCD | 20 | |
| MrYacin | Modular Arithmetic 2 | 20 | |
| andy2589977 | Bytes and Big Integers | 10 | |
| ayget | Greatest Common Divisor | 15 | |
| MrYacin | Modular Arithmetic 1 | 20 | |
| MrYacin | Extended GCD | 20 | |
| hakka52 | Meet me in the Claw | 120 |
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