| Date | User | Challenge | Score |
| MaylolOo | Base64 | 10 | |
| elyashue | Modulus Inutilis | 50 | |
| chunn | XOR Properties | 15 | |
| amira_19 | Base64 | 10 | |
| chomcel | You either know, XOR you don't | 30 | |
| Kacper_PW | Favourite byte | 20 | |
| gll | Chinese Remainder Theorem | 40 | |
| osihlovec | Bad Temper | 130 | |
| alanoo | Legendre Symbol | 35 | |
| rex2007 | Finding Flags | 2 | |
| Assem64 | Chinese Remainder Theorem | 40 | |
| Kamil1738 | Static Client 2 | 120 | |
| xy9n9a | Finding Flags | 2 | |
| xy9n9a | Great Snakes | 3 | |
| laabedmedsami | Resisting Bruteforce | 10 | |
| find_flagger | Modular Inverting | 25 | |
| Kacper_PW | XOR Properties | 15 | |
| chunn | XOR Starter | 10 | |
| nomo | Greatest Common Divisor | 15 | |
| oltvr | You either know, XOR you don't | 30 | |
| Hackologist | You either know, XOR you don't | 30 | |
| Valiuk | You either know, XOR you don't | 30 | |
| chunn | Bytes and Big Integers | 10 | |
| Kamil1738 | Additive | 70 | |
| contrarian_l | ASCII | 5 | |
| Kamil1738 | Static Client | 100 | |
| Hackologist | Favourite byte | 20 | |
| nomo | You either know, XOR you don't | 30 | |
| PuzzleMaster | Great Snakes | 3 | |
| Kamil1738 | Export-grade | 100 | |
| chomcel | Favourite byte | 20 | |
| find_flagger | Modular Arithmetic 2 | 20 | |
| oltvr | Favourite byte | 20 | |
| laabedmedsami | Keyed Permutations | 5 | |
| Kacper_PW | XOR Starter | 10 | |
| LRX | Greatest Common Divisor | 15 | |
| oltvr | XOR Properties | 15 | |
| PuzzleMaster | Finding Flags | 2 | |
| Hackologist | XOR Properties | 15 | |
| mxdacs | Base64 | 10 | |
| MaylolOo | Hex | 5 | |
| chomcel | XOR Properties | 15 | |
| Holzarim | Greatest Common Divisor | 15 | |
| muaz | Favourite byte | 20 | |
| oltvr | XOR Starter | 10 | |
| alanoo | Quadratic Residues | 25 | |
| Kamil1738 | Parameter Injection | 60 | |
| laabedmedsami | You either know, XOR you don't | 30 | |
| chomcel | XOR Starter | 10 | |
| mxdacs | Hex | 5 |
You are now level Current level