| Date | User | Challenge | Score |
| wazza | Modular Exponentiation | 10 | |
| Nephosxx | Finding Flags | 2 | |
| jstrzelczyk | Base64 | 10 | |
| NoBirdWasHam | Put a ring on it (ECSC 2023 (Norway)) | 0 | |
| Redender64 | Breaking SIDH | 250 | |
| jstrzelczyk | Hex | 5 | |
| macinson | Chinese Remainder Theorem | 40 | |
| overgrownamygdal | Great Snakes | 3 | |
| Valiuk | Hex | 5 | |
| overgrownamygdal | Finding Flags | 2 | |
| RussianBotanist | Privacy-Enhanced Mail? | 25 | |
| Valiuk | ASCII | 5 | |
| jstrzelczyk | ASCII | 5 | |
| Aimangk | Base64 | 10 | |
| jstrzelczyk | Network Attacks | 5 | |
| macinson | Modular Square Root | 35 | |
| Kacper_Kuczynski | Lemur XOR | 40 | |
| Satomaru | ASCII | 5 | |
| Kacpereniek | Extended GCD | 20 | |
| macinson | Legendre Symbol | 35 | |
| Kacper_Kuczynski | You either know, XOR you don't | 30 | |
| Kacper_Kuczynski | Favourite byte | 20 | |
| Kacper_Kuczynski | XOR Properties | 15 | |
| Kacper_Kuczynski | XOR Starter | 10 | |
| Kacper_Kuczynski | Bytes and Big Integers | 10 | |
| Kacpereniek | Modular Arithmetic 1 | 20 | |
| Kacper_Kuczynski | Base64 | 10 | |
| Kacpereniek | Greatest Common Divisor | 15 | |
| Franczesko | Modular Inverting | 25 | |
| Kacper_Kuczynski | Hex | 5 | |
| Kacper_Kuczynski | ASCII | 5 | |
| NoBirdWasHam | GLP420 (HackTM CTF) | 0 | |
| Kacper_Kuczynski | Network Attacks | 5 | |
| Kacpereniek | Favourite byte | 20 | |
| Kacpereniek | XOR Properties | 15 | |
| Franczesko | Modular Arithmetic 2 | 20 | |
| Kacpereniek | XOR Starter | 10 | |
| Kacpereniek | Bytes and Big Integers | 10 | |
| Kacpereniek | Base64 | 10 | |
| Kacpereniek | Hex | 5 | |
| Kacpereniek | ASCII | 5 | |
| jstrzelczyk | Great Snakes | 3 | |
| macinson | Quadratic Residues | 25 | |
| Franczesko | Modular Arithmetic 1 | 20 | |
| Franczesko | Extended GCD | 20 | |
| Munzel | Favourite byte | 20 | |
| tr011ist | Euler's Totient | 20 | |
| mamacita | ASCII | 5 | |
| Munzel | XOR Properties | 15 | |
| violson | Favourite byte | 20 |
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