| Date | User | Challenge | Score |
| SayedaT | ASCII | 5 | |
| Lina1234 | Great Snakes | 3 | |
| IronmanPhantom | Chinese Remainder Theorem | 40 | |
| gamesatosi | Base64 | 10 | |
| gamesatosi | Hex | 5 | |
| gamesatosi | ASCII | 5 | |
| IronmanPhantom | Modular Square Root | 35 | |
| gamesatosi | Network Attacks | 5 | |
| IronmanPhantom | Legendre Symbol | 35 | |
| gamesatosi | Great Snakes | 3 | |
| ZER0__0 | Quadratic Residues | 25 | |
| xzzmor | Chinese Remainder Theorem | 40 | |
| lololololokol | Private Keys | 20 | |
| MR_X | Greatest Common Divisor | 15 | |
| Fabian001 | Finding Flags | 2 | |
| Felipe24 | Finding Flags | 2 | |
| SayedaT | Great Snakes | 3 | |
| webhacker | Keyed Permutations | 5 | |
| IronmanPhantom | Quadratic Residues | 25 | |
| 0t4e | You either know, XOR you don't | 30 | |
| SayedaT | Finding Flags | 2 | |
| 0t4e | Favourite byte | 20 | |
| ZER0__0 | Extended GCD | 20 | |
| 0t4e | XOR Properties | 15 | |
| IronmanPhantom | Modular Inverting | 25 | |
| IronmanPhantom | Modular Arithmetic 2 | 20 | |
| webhacker | You either know, XOR you don't | 30 | |
| Lina1234 | Finding Flags | 2 | |
| Aptenodyte | Base64 | 10 | |
| Aptenodyte | Hex | 5 | |
| lololololokol | Euler's Totient | 20 | |
| T3nk3yyy | ECB Oracle | 60 | |
| Aptenodyte | ASCII | 5 | |
| skipped | ECB Oracle | 60 | |
| Aptenodyte | Great Snakes | 3 | |
| IronmanPhantom | Modular Arithmetic 1 | 20 | |
| 0t4e | XOR Starter | 10 | |
| Aptenodyte | Finding Flags | 2 | |
| IronmanPhantom | Extended GCD | 20 | |
| 0t4e | Bytes and Big Integers | 10 | |
| lololololokol | Public Keys | 15 | |
| 0t4e | Base64 | 10 | |
| 0t4e | Hex | 5 | |
| 0t4e | ASCII | 5 | |
| 0t4e | Great Snakes | 3 | |
| 0t4e | Finding Flags | 2 | |
| Angry_Cat | Chinese Remainder Theorem | 40 | |
| lololololokol | Modular Exponentiation | 10 | |
| schebet | ASCII | 5 | |
| Angry_Cat | Modular Square Root | 35 |
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