| Date | User | Challenge | Score |
| LunaSweijs | Extended GCD | 20 | |
| AlexEnderman | XOR Starter | 10 | |
| AlexEnderman | Bytes and Big Integers | 10 | |
| LunaSweijs | Greatest Common Divisor | 15 | |
| AlexEnderman | Base64 | 10 | |
| DinoGun | Diffusion through Permutation | 30 | |
| nprat | Finding Flags | 2 | |
| Mai47 | Symmetry | 50 | |
| AlexEnderman | Hex | 5 | |
| Ali_son | Favourite byte | 20 | |
| LunaSweijs | You either know, XOR you don't | 30 | |
| AlexEnderman | ASCII | 5 | |
| AlexEnderman | Great Snakes | 3 | |
| AlexEnderman | Finding Flags | 2 | |
| LunaSweijs | Favourite byte | 20 | |
| Zaur009 | Quadratic Residues | 25 | |
| artemogarcia | Hex | 5 | |
| xpl8 | Lemur XOR | 40 | |
| LunaSweijs | XOR Properties | 15 | |
| Zaur009 | Modular Inverting | 25 | |
| Zaur009 | Modular Arithmetic 2 | 20 | |
| DinoGun | Confusion through Substitution | 25 | |
| chapa | Base64 | 10 | |
| anush | Quadratic Residues | 25 | |
| Zaur009 | Modular Arithmetic 1 | 20 | |
| LunaSweijs | XOR Starter | 10 | |
| chapa | Hex | 5 | |
| Zaur009 | Extended GCD | 20 | |
| LunaSweijs | Bytes and Big Integers | 10 | |
| Zaur009 | Greatest Common Divisor | 15 | |
| artemogarcia | ASCII | 5 | |
| yawnfate2442 | Base64 | 10 | |
| Zaur009 | You either know, XOR you don't | 30 | |
| LunaSweijs | Base64 | 10 | |
| chapa | ASCII | 5 | |
| 1tsRyd3r | Oracular Spectacular | 150 | |
| LunaSweijs | Hex | 5 | |
| chapa | Great Snakes | 3 | |
| chapa | Finding Flags | 2 | |
| LunaSweijs | ASCII | 5 | |
| Zaur009 | Favourite byte | 20 | |
| Prokofiev6 | Finding Flags | 2 | |
| artemogarcia | Great Snakes | 3 | |
| LunaSweijs | Great Snakes | 3 | |
| artemogarcia | Finding Flags | 2 | |
| XSS3cut10n3r | Modular Inverting | 25 | |
| LunaSweijs | Finding Flags | 2 | |
| XSS3cut10n3r | Modular Arithmetic 2 | 20 | |
| anush | Modular Inverting | 25 | |
| XSS3cut10n3r | Modular Arithmetic 1 | 20 |
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