| Date | User | Challenge | Score |
| isobare | Bytes and Big Integers | 10 | |
| Halois | Special Soundness | 25 | |
| proclivity | Finding Flags | 2 | |
| n40y | Bringing It All Together | 50 | |
| Nimadli | Square Eyes | 35 | |
| michpats96 | Hex | 5 | |
| Kln | Hex | 5 | |
| michpats96 | ASCII | 5 | |
| sajadhamza | ASCII | 5 | |
| SuPeRPi9 | Salty | 20 | |
| michpats96 | Great Snakes | 3 | |
| Nimadli | Monoprime | 30 | |
| michpats96 | Finding Flags | 2 | |
| SuPeRPi9 | Manyprime | 40 | |
| sajadhamza | Great Snakes | 3 | |
| sajadhamza | Finding Flags | 2 | |
| Kln | ASCII | 5 | |
| iano0s1 | Great Snakes | 3 | |
| iano0s1 | Finding Flags | 2 | |
| FazeV1nce | Finding Flags | 2 | |
| Kln | Great Snakes | 3 | |
| Guzlyach | Confusion through Substitution | 25 | |
| Kln | Finding Flags | 2 | |
| SpongeBob369 | Adrien's Signs | 80 | |
| Nimadli | Inferius Prime | 30 | |
| sheerwood | Efficient Exchange | 50 | |
| mahmoud000 | Modular Inverting | 25 | |
| Fluvfy | Quadratic Residues | 25 | |
| Danonek | Quadratic Residues | 25 | |
| exoq | Square Eyes | 35 | |
| mahmoud000 | Modular Arithmetic 2 | 20 | |
| sheerwood | Curves and Logs | 40 | |
| avm | The Good, The Pad, The Ugly | 100 | |
| Shash | Network Attacks | 5 | |
| mahmoud000 | Modular Arithmetic 1 | 20 | |
| exoq | Inferius Prime | 30 | |
| mahmoud000 | Extended GCD | 20 | |
| Shash | Great Snakes | 3 | |
| kenmarksix | You either know, XOR you don't | 30 | |
| isobare | Base64 | 10 | |
| H4x0rGh0st | ASCII | 5 | |
| sneha_crypts | ASCII | 5 | |
| H4x0rGh0st | Great Snakes | 3 | |
| Kae | Signing Server | 60 | |
| Shash | Finding Flags | 2 | |
| Dcaha001 | XOR Properties | 15 | |
| Nimadli | Factoring | 15 | |
| isobare | Hex | 5 | |
| Zirey | Base64 | 10 | |
| sneha_crypts | Great Snakes | 3 |
You are now level Current level