| Date | User | Challenge | Score |
| Hauntgo | XOR Starter | 10 | |
| Brandongrait | Favourite byte | 20 | |
| Hauntgo | Bytes and Big Integers | 10 | |
| dlesk | Bespoke Padding | 100 | |
| Gabiso | Modular Square Root | 35 | |
| Brandongrait | XOR Properties | 15 | |
| LastScholar | Greatest Common Divisor | 15 | |
| Brandongrait | XOR Starter | 10 | |
| Halibut | You either know, XOR you don't | 30 | |
| Halibut | Favourite byte | 20 | |
| will_coleman | Base64 | 10 | |
| will_coleman | Hex | 5 | |
| will_coleman | ASCII | 5 | |
| Brandongrait | Bytes and Big Integers | 10 | |
| will_coleman | Great Snakes | 3 | |
| will_coleman | Finding Flags | 2 | |
| Brandongrait | Base64 | 10 | |
| Gabiso | Legendre Symbol | 35 | |
| glonk | Resisting Bruteforce | 10 | |
| glonk | Keyed Permutations | 5 | |
| glonk | Adrien's Signs | 80 | |
| Brandongrait | Hex | 5 | |
| AESpider | PriMeD5 | 100 | |
| LastScholar | You either know, XOR you don't | 30 | |
| Halibut | XOR Starter | 10 | |
| shynt04 | Factoring | 15 | |
| glonk | Chinese Remainder Theorem | 40 | |
| Brandongrait | ASCII | 5 | |
| shynt04 | RSA Signatures | 25 | |
| glonk | Modular Square Root | 35 | |
| glonk | Legendre Symbol | 35 | |
| George_Weasly | Marin's Secrets | 50 | |
| nhatanh1105 | Keyed Permutations | 5 | |
| konkod123 | Modular Inverting | 25 | |
| securial150 | No Leaks | 100 | |
| shynt04 | RSA Decryption | 20 | |
| shynt04 | Private Keys | 20 | |
| konkod123 | Modular Arithmetic 2 | 20 | |
| shynt04 | Euler's Totient | 20 | |
| shynt04 | Public Keys | 15 | |
| glonk | Quadratic Residues | 25 | |
| AESpider | Hash Stuffing | 50 | |
| glonk | Modular Inverting | 25 | |
| glonk | Modular Arithmetic 2 | 20 | |
| konkod123 | Modular Arithmetic 1 | 20 | |
| glonk | Modular Arithmetic 1 | 20 | |
| Bahgutti | ASCII | 5 | |
| glonk | Extended GCD | 20 | |
| Brandongrait | Great Snakes | 3 | |
| Bahgutti | Great Snakes | 3 |
You are now level Current level