| Date | User | Challenge | Score |
| Kryra | Modular Binomials | 80 | |
| pewpew2 | Network Attacks | 5 | |
| anmol34 | Base64 | 10 | |
| DownOnEarth | Keyed Permutations | 5 | |
| TwoShrimp | You either know, XOR you don't | 30 | |
| ErikBLUBBLUB | ASCII | 5 | |
| anmol34 | Hex | 5 | |
| LuciusAskaner | Bytes and Big Integers | 10 | |
| anmol34 | ASCII | 5 | |
| LuciusAskaner | Hex | 5 | |
| HitchYoru | Export-grade | 100 | |
| LuciusAskaner | ASCII | 5 | |
| TwoShrimp | Favourite byte | 20 | |
| LuciusAskaner | Finding Flags | 2 | |
| wildmonkey450 | DLOG on the Surface | 40 | |
| ErikBLUBBLUB | Great Snakes | 3 | |
| Kran | Everything is Still Big | 100 | |
| samirakai | Base64 | 10 | |
| cbarrera | Great Snakes | 3 | |
| TwoShrimp | XOR Properties | 15 | |
| h11p13 | RSA Decryption | 20 | |
| samirakai | Hex | 5 | |
| h11p13 | Private Keys | 20 | |
| h11p13 | Euler's Totient | 20 | |
| nilerrors | Bytes and Big Integers | 10 | |
| h11p13 | Public Keys | 15 | |
| ErikBLUBBLUB | Finding Flags | 2 | |
| Too | Bringing It All Together | 50 | |
| h11p13 | Modular Exponentiation | 10 | |
| nilerrors | Base64 | 10 | |
| wacatac | Legendre Symbol | 35 | |
| Kryra | Adrien's Signs | 80 | |
| TwoShrimp | XOR Starter | 10 | |
| 184540 | Chinese Remainder Theorem | 40 | |
| 184540 | Modular Square Root | 35 | |
| spy003 | RSA Decryption | 20 | |
| nilerrors | Hex | 5 | |
| Too | Diffusion through Permutation | 30 | |
| nilerrors | ASCII | 5 | |
| nilerrors | Network Attacks | 5 | |
| oremaljju | Base64 | 10 | |
| 184540 | Legendre Symbol | 35 | |
| wacatac | Quadratic Residues | 25 | |
| TwoShrimp | Bytes and Big Integers | 10 | |
| mgu | Exceptional Curves | 100 | |
| ajh | Network Attacks | 5 | |
| samirakai | ASCII | 5 | |
| TwoShrimp | Base64 | 10 | |
| cbarrera | Finding Flags | 2 | |
| spy003 | Private Keys | 20 |
You are now level Current level