| Date | User | Challenge | Score |
| 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 | |
| IronmanPhantom | Greatest Common Divisor | 15 | |
| tonron | Great Snakes | 3 | |
| schebet | Great Snakes | 3 | |
| no4h | ECB CBC WTF | 55 | |
| schebet | Finding Flags | 2 | |
| Angry_Cat | Legendre Symbol | 35 | |
| IronmanPhantom | You either know, XOR you don't | 30 | |
| avm | Mister Saplin's Preview | 80 | |
| Inventionist1 | Collider | 50 | |
| AnonAshBD | Base64 | 10 | |
| webhacker | Favourite byte | 20 | |
| AnonAshBD | Hex | 5 | |
| Ilovemyself | XOR Properties | 15 | |
| vpn_browse | Confusion through Substitution | 25 | |
| Abdulaziz25aa | Base64 | 10 | |
| T3nk3yyy | Passwords as Keys | 50 | |
| hamboh135 | Network Attacks | 5 | |
| rasamhack | You either know, XOR you don't | 30 | |
| IronmanPhantom | Favourite byte | 20 | |
| Angry_Cat | Quadratic Residues | 25 |
You are now level Current level