| Date | User | Challenge | Score |
| Ramji_R | Hex | 5 | |
| Ramji_R | ASCII | 5 | |
| ColderAmst3l | Great Snakes | 3 | |
| Ramji_R | Great Snakes | 3 | |
| ColderAmst3l | Finding Flags | 2 | |
| samosaka | XOR Starter | 10 | |
| Ramji_R | Finding Flags | 2 | |
| s4nch0 | Base64 | 10 | |
| madlad1 | Great Snakes | 3 | |
| flipthedog | Chinese Remainder Theorem | 40 | |
| see0 | Chinese Remainder Theorem | 40 | |
| flipthedog | Modular Square Root | 35 | |
| calinarul | Modular Square Root | 35 | |
| samosaka | Bytes and Big Integers | 10 | |
| madlad1 | Finding Flags | 2 | |
| cryptokiwi | Modes of Operation Starter | 15 | |
| Balu2907 | Diffusion through Permutation | 30 | |
| flipthedog | Legendre Symbol | 35 | |
| Neutr0nys | Export-grade | 100 | |
| samosaka | Base64 | 10 | |
| Neutr0nys | Parameter Injection | 60 | |
| Erij_Djobbi | Sharks on the Wire | 10 | |
| flipthedog | Quadratic Residues | 25 | |
| step_jo | You either know, XOR you don't | 30 | |
| Neutr0nys | Deriving Symmetric Keys | 40 | |
| Neutr0nys | Computing Shared Secrets | 30 | |
| Balu2907 | Confusion through Substitution | 25 | |
| Neutr0nys | Computing Public Values | 25 | |
| Neutr0nys | Generators of Groups | 20 | |
| Erij_Djobbi | Quadratic Residues | 25 | |
| SUUranium | Base64 | 10 | |
| calinarul | Legendre Symbol | 35 | |
| brembo | Crossed Wires | 100 | |
| samosaka | Hex | 5 | |
| Tdawge | Bytes and Big Integers | 10 | |
| SUUranium | Hex | 5 | |
| brembo | Everything is Big | 70 | |
| Balu2907 | Round Keys | 20 | |
| Neutr0nys | Working with Fields | 10 | |
| samosaka | ASCII | 5 | |
| Neutr0nys | Modulus Inutilis | 50 | |
| dfw_jeliel | Finding Flags | 2 | |
| flipthedog | Modular Inverting | 25 | |
| samosaka | Great Snakes | 3 | |
| Neutr0nys | Salty | 20 | |
| dloop | Chinese Remainder Theorem | 40 | |
| brembo | Square Eyes | 35 | |
| Neutr0nys | Manyprime | 40 | |
| Tdawge | Base64 | 10 | |
| samosaka | Finding Flags | 2 |
You are now level Current level