| Date | User | Challenge | Score |
| mahmud | SSH Keys | 35 | |
| mahmud | CERTainly not | 30 | |
| 50ulR3ap3r | ASCII | 5 | |
| mahmud | Privacy-Enhanced Mail? | 25 | |
| mahmud | Modular Inverting | 25 | |
| MohamedMujahed | Exceptional Curves | 100 | |
| mahmud | Modular Arithmetic 2 | 20 | |
| mahmud | Modular Arithmetic 1 | 20 | |
| mahmud | Extended GCD | 20 | |
| mahmud | Greatest Common Divisor | 15 | |
| mahmud | Lemur XOR | 40 | |
| 9tsrC_s | Finding Flags | 2 | |
| mahmud | You either know, XOR you don't | 30 | |
| mahmud | Favourite byte | 20 | |
| mahmud | XOR Properties | 15 | |
| Aloutrance | Successive Powers | 60 | |
| mahmud | XOR Starter | 10 | |
| Anass67 | Fast Primes | 75 | |
| 50ulR3ap3r | Great Snakes | 3 | |
| acamq | You either know, XOR you don't | 30 | |
| A0xV4l0r14n | ASCII | 5 | |
| OutOfTheWell | Square Eyes | 35 | |
| Sadrazamv4 | Great Snakes | 3 | |
| A0xV4l0r14n | Great Snakes | 3 | |
| A0xV4l0r14n | Finding Flags | 2 | |
| ANGEL000001 | Transparency | 50 | |
| Vic2910 | Hex | 5 | |
| 50ulR3ap3r | Finding Flags | 2 | |
| Yorha | Favourite byte | 20 | |
| Frogenius | Bytes and Big Integers | 10 | |
| Riswynn | Finding Flags | 2 | |
| jse6 | Network Attacks | 5 | |
| mahmud | Smithing contest (ECSC 2024 (Italy)) | 0 | |
| MedUseer | Finding Flags | 2 | |
| acamq | Favourite byte | 20 | |
| Juggaluggg | Network Attacks | 5 | |
| jse6 | You either know, XOR you don't | 30 | |
| acamq | XOR Properties | 15 | |
| jse6 | Favourite byte | 20 | |
| Vic2910 | ASCII | 5 | |
| jse6 | XOR Properties | 15 | |
| Juggaluggg | XOR Starter | 10 | |
| jse6 | XOR Starter | 10 | |
| ANGEL000001 | SSH Keys | 35 | |
| jse6 | Bytes and Big Integers | 10 | |
| joaotheboss | No Way Back Home | 100 | |
| Yorha | XOR Properties | 15 | |
| starnotes | ECB Oracle | 60 | |
| Formulangelo | Hex | 5 | |
| ANGEL000001 | CERTainly not | 30 |
You are now level Current level