| Date | User | Challenge | Score |
| r0ss0n3r1xd4t | Great Snakes | 3 | |
| Pacos12 | Legendre Symbol | 35 | |
| r0ss0n3r1xd4t | Finding Flags | 2 | |
| lars87j | Adrien's Signs | 80 | |
| thodorisbatos | CERTainly not | 30 | |
| Aziz99 | Legendre Symbol | 35 | |
| Lef264 | Bringing It All Together | 50 | |
| Pacos12 | Quadratic Residues | 25 | |
| Pacos12 | Modular Inverting | 25 | |
| Pacos12 | Modular Arithmetic 2 | 20 | |
| Pacos12 | Modular Arithmetic 1 | 20 | |
| Soupi0x | Legendre Symbol | 35 | |
| Pacos12 | Extended GCD | 20 | |
| annakouk | Computing Shared Secrets | 30 | |
| Pacos12 | Greatest Common Divisor | 15 | |
| eljefe | Favourite byte | 20 | |
| lars87j | Chinese Remainder Theorem | 40 | |
| annakouk | Computing Public Values | 25 | |
| rachbmoss | Hex | 5 | |
| Pacos12 | You either know, XOR you don't | 30 | |
| Pacos12 | Favourite byte | 20 | |
| Pacos12 | XOR Properties | 15 | |
| Ridwan1642 | Infinite Descent | 50 | |
| Pacos12 | XOR Starter | 10 | |
| jmaciej7 | Euler's Totient | 20 | |
| Pacos12 | Bytes and Big Integers | 10 | |
| rachbmoss | ASCII | 5 | |
| sweatyrocket | Irish flan (ECSC 2023 (Norway)) | 0 | |
| Aziz99 | Quadratic Residues | 25 | |
| rachbmoss | Great Snakes | 3 | |
| Pacos12 | Base64 | 10 | |
| rachbmoss | Finding Flags | 2 | |
| Aziz99 | Modular Inverting | 25 | |
| 1ynn | Hex | 5 | |
| jmaciej7 | Public Keys | 15 | |
| Aziz99 | Modular Arithmetic 2 | 20 | |
| Soupi0x | Quadratic Residues | 25 | |
| 1ynn | ASCII | 5 | |
| Aziz99 | Modular Arithmetic 1 | 20 | |
| Pacos12 | Hex | 5 | |
| 1ynn | Great Snakes | 3 | |
| jmaciej7 | Modular Exponentiation | 10 | |
| 1ynn | Finding Flags | 2 | |
| d4pr0 | Montgomery Curves | 30 | |
| lars87j | Modular Square Root | 35 | |
| annakouk | Generators of Groups | 20 | |
| baitfr | SSH Keys | 35 | |
| y0dam4n | Modes of Operation Starter | 15 | |
| Soupi0x | Transparency | 50 | |
| ukfeliz | Favourite byte | 20 |
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