| Date | User | Challenge | Score |
| NRTLOX | Network Attacks | 5 | |
| skipped | Bytes and Big Integers | 10 | |
| NRTLOX | Great Snakes | 3 | |
| prt_tm_phlsphr | Favourite byte | 20 | |
| NRTLOX | Finding Flags | 2 | |
| M00rgana | Public Keys | 15 | |
| ZanePlayer | Confusion through Substitution | 25 | |
| M00rgana | Modular Exponentiation | 10 | |
| knumberse | Base64 | 10 | |
| luisnegron | Great Snakes | 3 | |
| Lndn | ASCII | 5 | |
| Huyyeuthu2104 | Additive | 70 | |
| knumberse | Hex | 5 | |
| 1tsRyd3r | Computing Shared Secrets | 30 | |
| namdang | Static Client 2 | 120 | |
| Pizz | Crossed Wires | 100 | |
| knumberse | ASCII | 5 | |
| Lndn | Great Snakes | 3 | |
| knumberse | Great Snakes | 3 | |
| luisnegron | Finding Flags | 2 | |
| knumberse | Finding Flags | 2 | |
| ShadowChain | Finding Flags | 2 | |
| Lndn | Finding Flags | 2 | |
| 1tsRyd3r | Computing Public Values | 25 | |
| arp1t0x | Successive Powers | 60 | |
| N01r | Favourite byte | 20 | |
| AwesomeOutlaw | Finding Flags | 2 | |
| 9marshalzxi | Bytes and Big Integers | 10 | |
| Bigmac | Finding Flags | 2 | |
| rizz061 | Finding Flags | 2 | |
| 1tsRyd3r | Generators of Groups | 20 | |
| malikberry | Finding Flags | 2 | |
| Happy001 | Finding Flags | 2 | |
| OLAOLUWA | Finding Flags | 2 | |
| MichaelML | Finding Flags | 2 | |
| ZanePlayer | Round Keys | 20 | |
| 9marshalzxi | Base64 | 10 | |
| carenysf | Oh SNAP | 120 | |
| 9marshalzxi | Hex | 5 | |
| prt_tm_phlsphr | XOR Properties | 15 | |
| Levilock | Finding Flags | 2 | |
| ramram123 | Base64 | 10 | |
| ccctestccc | Finding Flags | 2 | |
| ramram123 | Hex | 5 | |
| hanging_tree_213 | Great Snakes | 3 | |
| Beethoven3 | Triple DES | 60 | |
| yololmao | Honest Verifier Zero Knowledge | 30 | |
| akkult | Favourite byte | 20 | |
| hanging_tree_213 | Finding Flags | 2 | |
| N01r | XOR Properties | 15 |
You are now level Current level