| Date | User | Challenge | Score |
| andrehda | No Random, No Bias | 120 | |
| lucknera | Stream of Consciousness | 80 | |
| Voloda | Confusion through Substitution | 25 | |
| DeVasco | ASCII | 5 | |
| zyb12344 | Structure of AES | 15 | |
| Krako | Sharks on the Wire | 10 | |
| DeVasco | Great Snakes | 3 | |
| DeVasco | Finding Flags | 2 | |
| RohanArk | ASCII | 5 | |
| 3618 | Great Snakes | 3 | |
| noahaon99 | Null or Never | 100 | |
| Voloda | Structure of AES | 15 | |
| Voloda | Resisting Bruteforce | 10 | |
| g0ld3np4r3y | Extended GCD | 20 | |
| adce626 | Greatest Common Divisor | 15 | |
| adce626 | Lemur XOR | 40 | |
| Voloda | Hex | 5 | |
| Voloda | Base64 | 10 | |
| RohanArk | Great Snakes | 3 | |
| pmk1d | Modular Arithmetic 2 | 20 | |
| hautot211 | Hamiltonicity 1 | 100 | |
| hautot211 | Hamiltonicity (CryptoHack) | 0 | |
| adce626 | You either know, XOR you don't | 30 | |
| Showkara | Mister Saplins The Prover | 125 | |
| zyb12344 | Resisting Bruteforce | 10 | |
| adce626 | Favourite byte | 20 | |
| 5454 | Resisting Bruteforce | 10 | |
| adce626 | XOR Properties | 15 | |
| 5454 | Keyed Permutations | 5 | |
| calvernaz | Bespoke Padding | 100 | |
| zyb12344 | Keyed Permutations | 5 | |
| Anneehlert | Finding Flags | 2 | |
| ispo | RSA Backdoor Viability | 175 | |
| akniet | Bean Counter | 60 | |
| cmatos689 | XOR Properties | 15 | |
| adce626 | XOR Starter | 10 | |
| RohanArk | Finding Flags | 2 | |
| akniet | Symmetry | 50 | |
| akniet | Flipping Cookie | 60 | |
| rafffff | Quadratic Residues | 25 | |
| adce626 | Encoding Challenge | 40 | |
| akniet | ECB CBC WTF | 55 | |
| cmatos689 | XOR Starter | 10 | |
| akniet | ECB Oracle | 60 | |
| adce626 | Bytes and Big Integers | 10 | |
| Voloda | Modulus Inutilis | 50 | |
| noahaon99 | Oh SNAP | 120 | |
| Hugof01 | Great Snakes | 3 | |
| adce626 | Base64 | 10 | |
| Wiskundeles | Extended GCD | 20 |
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