| Date | User | Challenge | Score |
| 0014 | Finding Flags | 2 | |
| Alust | Finding Flags | 2 | |
| ElenaT | Let's Decrypt Again | 175 | |
| D3c0d3R_1337 | Private Keys | 20 | |
| D3c0d3R_1337 | Euler's Totient | 20 | |
| D3c0d3R_1337 | Public Keys | 15 | |
| Mardiaz | Finding Flags | 2 | |
| D3c0d3R_1337 | Modular Exponentiation | 10 | |
| KamalSaif | Great Snakes | 3 | |
| KamalSaif | Finding Flags | 2 | |
| Hanan | Modular Inverting | 25 | |
| Hanan | Modular Arithmetic 2 | 20 | |
| f2ri2 | Quadratic Residues | 25 | |
| MahmoodTavafoghi | Modular Arithmetic 1 | 20 | |
| 01xVOID | Bytes and Big Integers | 10 | |
| alfattd | Lemur XOR | 40 | |
| MCY | Network Attacks | 5 | |
| small_worm | Exceptional Curves | 100 | |
| MCY | Great Snakes | 3 | |
| HighestClimber | Bean Counter | 60 | |
| MCY | Finding Flags | 2 | |
| Hanan | Modular Arithmetic 1 | 20 | |
| m1rabil1z | XOR Starter | 10 | |
| m1rabil1z | Bytes and Big Integers | 10 | |
| alfattd | Encoding Challenge | 40 | |
| Hanan | Extended GCD | 20 | |
| m1rabil1z | Base64 | 10 | |
| m1rabil1z | Hex | 5 | |
| Hanan | Greatest Common Divisor | 15 | |
| m1rabil1z | ASCII | 5 | |
| m1rabil1z | Great Snakes | 3 | |
| m1rabil1z | Finding Flags | 2 | |
| Hanan | You either know, XOR you don't | 30 | |
| gulliver | Marin's Secrets | 50 | |
| Doron | Favourite byte | 20 | |
| young1023 | Base64 | 10 | |
| Hanan | Favourite byte | 20 | |
| Hanan | XOR Properties | 15 | |
| Hanan | XOR Starter | 10 | |
| young1023 | Hex | 5 | |
| young1023 | ASCII | 5 | |
| Hanan | Bytes and Big Integers | 10 | |
| young1023 | Great Snakes | 3 | |
| young1023 | Finding Flags | 2 | |
| Doron | XOR Properties | 15 | |
| Doron | XOR Starter | 10 | |
| 01xVOID | Base64 | 10 | |
| Doron | Bytes and Big Integers | 10 | |
| f2ri2 | Network Attacks | 5 | |
| MohamedMujahed | Network Attacks | 5 |
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