| Date | User | Challenge | Score |
| cybersec07 | Finding Flags | 2 | |
| Ra1ssa | Finding Flags | 2 | |
| lhowariy | XOR Starter | 10 | |
| Frederik353 | Modular Binomials | 80 | |
| Arvis | Additional problems (CSC Belgium) | 0 | |
| lhowariy | Bytes and Big Integers | 10 | |
| Luciol | Base64 | 10 | |
| dkoazwlearning | Backpack Cryptography | 120 | |
| Arvis | Dancing Queen | 120 | |
| psykorion | Favourite byte | 20 | |
| bena_47 | Chinese Remainder Theorem | 40 | |
| Arvis | Verilicious (Cyber Apocalypse 2025) | 0 | |
| Arvis | Stream of Consciousness | 80 | |
| selsoares11 | Quadratic Residues | 25 | |
| Arvis | CTRIME | 70 | |
| bena_47 | Modular Square Root | 35 | |
| lexykatt | Finding Flags | 2 | |
| jy0613 | Resisting Bruteforce | 10 | |
| devid | Quadratic Residues | 25 | |
| Arvis | Logon Zero | 80 | |
| Arvis | Bean Counter | 60 | |
| kaleidooa | Structure of AES | 15 | |
| Arvis | Symmetry | 50 | |
| chrischako | Modular Inverting | 25 | |
| Topfpflanze | RSA Signatures | 25 | |
| DerEinzigeMichi | Manyprime | 40 | |
| bena_47 | Legendre Symbol | 35 | |
| Simcitty | RSA Signatures | 25 | |
| jag | RSA Signatures | 25 | |
| Arvis | U-turn (Breizh CTF) | 0 | |
| IvanMaierhofer | Monoprime | 30 | |
| Arvis | Triple DES | 60 | |
| Arvis | Lazy CBC | 60 | |
| chrischako | Modular Arithmetic 2 | 20 | |
| Biersaefer | RSA Signatures | 25 | |
| sulha | Successive Powers | 60 | |
| annikan0210 | RSA Signatures | 25 | |
| wangjihu | Extended GCD | 20 | |
| jakobKL | Factoring | 15 | |
| chrischako | Modular Arithmetic 1 | 20 | |
| lhowariy | Base64 | 10 | |
| JakobKjellberg02 | Bringing It All Together | 50 | |
| strauchiii | Generators of Groups | 20 | |
| lintangpambayun | Network Attacks | 5 | |
| lintangpambayun | Great Snakes | 3 | |
| lintangpambayun | Finding Flags | 2 | |
| Niklas6616 | Factoring | 15 | |
| strauchiii | Working with Fields | 10 | |
| lhowariy | Hex | 5 | |
| bena_47 | Quadratic Residues | 25 |
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