| Date | User | Challenge | Score |
| SB112 | Static Client 2 | 120 | |
| SuperSniper3412 | Curveball | 100 | |
| omershahid25129 | Base64 | 10 | |
| SnapanS | ASCII | 5 | |
| VuiVe | Endless Emails | 150 | |
| Emperor_Sai | Hex | 5 | |
| Octopuss6 | Modular Inverting | 25 | |
| omershahid25129 | Hex | 5 | |
| SnapanS | Great Snakes | 3 | |
| Smorturt | Public Keys | 15 | |
| omershahid25129 | ASCII | 5 | |
| ZTheH | Bytes and Big Integers | 10 | |
| SnapanS | Finding Flags | 2 | |
| svr98x | Hex | 5 | |
| keyxxxtop | Hex | 5 | |
| Smorturt | Modular Exponentiation | 10 | |
| keyxxxtop | ASCII | 5 | |
| s70gun | Modular Arithmetic 2 | 20 | |
| svr98x | ASCII | 5 | |
| Emperor_Sai | ASCII | 5 | |
| omershahid25129 | Network Attacks | 5 | |
| Smorturt | Finding Flags | 2 | |
| anastef | Working with Fields | 10 | |
| Emperor_Sai | Great Snakes | 3 | |
| PiotrG | Lazy CBC | 60 | |
| jerome_helmo | Factoring | 15 | |
| Reo0x | Modular Arithmetic 2 | 20 | |
| PiotrG | Flipping Cookie | 60 | |
| madhav_anand_ | Script Kiddie | 70 | |
| pin | Lemur XOR | 40 | |
| Archcyph | ASCII | 5 | |
| agilghif | Adrien's Signs | 80 | |
| jerome_helmo | RSA Signatures | 25 | |
| Emperor_Sai | Finding Flags | 2 | |
| keyxxxtop | Great Snakes | 3 | |
| pin | Encoding Challenge | 40 | |
| 0xDora | SSH Keys | 35 | |
| jerome_helmo | RSA Decryption | 20 | |
| Octopuss6 | Modular Arithmetic 2 | 20 | |
| Archcyph | Great Snakes | 3 | |
| jerome_helmo | Private Keys | 20 | |
| Archcyph | Finding Flags | 2 | |
| Rezebombdevil | Favourite byte | 20 | |
| jerome_helmo | Euler's Totient | 20 | |
| shesec | Finding Flags | 2 | |
| ast04 | Point Addition | 30 | |
| jerome_helmo | Public Keys | 15 | |
| pin | Network Attacks | 5 | |
| PiotrG | ECB Oracle | 60 | |
| s70gun | Modular Arithmetic 1 | 20 |
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