| Date | User | Challenge | Score |
| Fengziyue | Favourite byte | 20 | |
| radare | The Good, The Pad, The Ugly | 100 | |
| Adel_Cr | Chinese Remainder Theorem | 40 | |
| kjustKai | You either know, XOR you don't | 30 | |
| mmadeforjustine | Great Snakes | 3 | |
| 0x595 | ASCII | 5 | |
| Adel_Cr | Modular Square Root | 35 | |
| mmadeforjustine | Finding Flags | 2 | |
| Sajid14592 | Modular Inverting | 25 | |
| rush_i | Monoprime | 30 | |
| xristoforos | Base64 | 10 | |
| Adel_Cr | Legendre Symbol | 35 | |
| hasuke | Confusion through Substitution | 25 | |
| v1ncent | Megalomaniac 3 | 120 | |
| xristoforos | Hex | 5 | |
| xristoforos | ASCII | 5 | |
| 0xmvmd | Modular Arithmetic 1 | 20 | |
| as11 | ASCII | 5 | |
| dlesk | Authenticated Handshake | 40 | |
| as11 | Great Snakes | 3 | |
| Fengziyue | XOR Properties | 15 | |
| shhack96 | Export-grade | 100 | |
| xristoforos | Great Snakes | 3 | |
| as11 | Finding Flags | 2 | |
| xristoforos | Finding Flags | 2 | |
| Kyle_0215 | Modes of Operation Starter | 15 | |
| TinyLean | Keyed Permutations | 5 | |
| 0x595 | Great Snakes | 3 | |
| 0x595 | Finding Flags | 2 | |
| radare | Pad Thai | 80 | |
| emsa | What's a Lattice? | 40 | |
| shhack96 | Parameter Injection | 60 | |
| v1ncent | Megalomaniac 2 | 120 | |
| limac246 | Adrien's Signs | 80 | |
| hasuke | Round Keys | 20 | |
| shhack96 | Deriving Symmetric Keys | 40 | |
| bncybz | Roll your Own | 125 | |
| hahahahage | Hex | 5 | |
| jkkwan27 | Vectors | 10 | |
| shhack96 | Computing Shared Secrets | 30 | |
| hahahahage | ASCII | 5 | |
| hahahahage | Great Snakes | 3 | |
| hahahahage | Finding Flags | 2 | |
| emsa | Size and Basis | 15 | |
| shhack96 | Computing Public Values | 25 | |
| dlesk | Decrypting TLS 1.3 | 35 | |
| jaehee322 | Gram Schmidt | 30 | |
| 8l4nk | Gram Schmidt | 30 | |
| Mrheisenburgers | Mixed Up | 120 | |
| jkkwan27 | Gram Schmidt | 30 |
You are now level Current level