| Date | User | Challenge | Score |
| Grupo2_MateApli | Greatest Common Divisor | 15 | |
| vincentiusantu | Finding Flags | 2 | |
| subodhkhadka | Great Snakes | 3 | |
| subodhkhadka | Finding Flags | 2 | |
| allanklein | Bytes and Big Integers | 10 | |
| sawthahtay | Chinese Remainder Theorem | 40 | |
| allanklein | Base64 | 10 | |
| Grupo2_MateApli | You either know, XOR you don't | 30 | |
| larposis | Modular Arithmetic 2 | 20 | |
| sawthahtay | Modular Square Root | 35 | |
| MarwanSafwat | Modular Binomials | 80 | |
| trypc | ECB Oracle | 60 | |
| allanklein | Hex | 5 | |
| MuhammadDanish | ECB CBC WTF | 55 | |
| Grupo2_MateApli | Favourite byte | 20 | |
| allanklein | ASCII | 5 | |
| sawthahtay | Legendre Symbol | 35 | |
| Alex_Lim | Greatest Common Divisor | 15 | |
| Seannnnnn | You either know, XOR you don't | 30 | |
| Grupo2_MateApli | XOR Properties | 15 | |
| Grupo2_MateApli | XOR Starter | 10 | |
| Grupo2_MateApli | Encoding Challenge | 40 | |
| Grupo2_MateApli | Bytes and Big Integers | 10 | |
| Grupo2_MateApli | Base64 | 10 | |
| Grupo2_MateApli | Hex | 5 | |
| Grupo2_MateApli | ASCII | 5 | |
| Anushri23 | Modular Binomials | 80 | |
| sawthahtay | Quadratic Residues | 25 | |
| sawthahtay | Modular Inverting | 25 | |
| sawthahtay | Modular Arithmetic 2 | 20 | |
| sawthahtay | Modular Arithmetic 1 | 20 | |
| iniM0n | Passwords as Keys | 50 | |
| Khant19 | Bytes and Big Integers | 10 | |
| larposis | Modular Arithmetic 1 | 20 | |
| hoorien | You either know, XOR you don't | 30 | |
| larposis | Extended GCD | 20 | |
| Alex_Lim | You either know, XOR you don't | 30 | |
| Abhisheksp | Structure of AES | 15 | |
| hoorien | Favourite byte | 20 | |
| Seannnnnn | Favourite byte | 20 | |
| hoorien | XOR Properties | 15 | |
| Abhisheksp | Resisting Bruteforce | 10 | |
| hoorien | XOR Starter | 10 | |
| novarita | Quadratic Residues | 25 | |
| hoorien | Bytes and Big Integers | 10 | |
| novarita | Modular Inverting | 25 | |
| Aboodleh | You either know, XOR you don't | 30 | |
| sawthahtay | Extended GCD | 20 | |
| novarita | Modular Arithmetic 2 | 20 | |
| Aboodleh | Favourite byte | 20 |
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