| Date | User | Challenge | Score |
| Ohrorong | Bringing It All Together | 50 | |
| jinseo | Bean Counter | 60 | |
| Jevgenious | Structure of AES | 15 | |
| valentyn_bibik | Finding Flags | 2 | |
| Jevgenious | Resisting Bruteforce | 10 | |
| Jevgenious | Keyed Permutations | 5 | |
| Oskar404 | XOR Properties | 15 | |
| Jevgenious | Quadratic Residues | 25 | |
| Jevgenious | Modular Inverting | 25 | |
| Jevgenious | Modular Arithmetic 2 | 20 | |
| ungjae | Resisting Bruteforce | 10 | |
| zhanega | Greatest Common Divisor | 15 | |
| akkurl | Export-grade | 100 | |
| akkurl | Parameter Injection | 60 | |
| Jevgenious | Modular Arithmetic 1 | 20 | |
| Jevgenious | Extended GCD | 20 | |
| ungjae | Keyed Permutations | 5 | |
| Jevgenious | Greatest Common Divisor | 15 | |
| Anouar404 | Flipping Cookie | 60 | |
| Jevgenious | You either know, XOR you don't | 30 | |
| akkurl | Deriving Symmetric Keys | 40 | |
| Ohrorong | Diffusion through Permutation | 30 | |
| Jevgenious | Favourite byte | 20 | |
| Jevgenious | XOR Properties | 15 | |
| kratta | Parameter Injection | 60 | |
| kareemelfeel05 | Keyed Permutations | 5 | |
| akkurl | Computing Shared Secrets | 30 | |
| kareemelfeel05 | Modular Binomials | 80 | |
| akkurl | Computing Public Values | 25 | |
| D1533 | The Good, The Pad, The Ugly | 100 | |
| akkurl | Generators of Groups | 20 | |
| akkurl | Working with Fields | 10 | |
| jinseo | Symmetry | 50 | |
| akkurl | Modulus Inutilis | 50 | |
| kratta | Export-grade | 100 | |
| akkurl | Salty | 20 | |
| Ohrorong | Confusion through Substitution | 25 | |
| kareemelfeel05 | Adrien's Signs | 80 | |
| kratta | Deriving Symmetric Keys | 40 | |
| akkurl | Manyprime | 40 | |
| agomezmarti | Parameter Injection | 60 | |
| megaman | Finding Flags | 2 | |
| kareemelfeel05 | Chinese Remainder Theorem | 40 | |
| epoj | Greatest Common Divisor | 15 | |
| kratta | Computing Shared Secrets | 30 | |
| kratta | Computing Public Values | 25 | |
| akkurl | Monoprime | 30 | |
| kratta | Generators of Groups | 20 | |
| kratta | Working with Fields | 10 | |
| kareemelfeel05 | Modular Square Root | 35 |
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