| Date | User | Challenge | Score |
| wordswithinwords | Great Snakes | 3 | |
| thanosss | Encoding Challenge | 40 | |
| Tian47 | Hex | 5 | |
| kflippy | XOR Starter | 10 | |
| wordswithinwords | Finding Flags | 2 | |
| Tian47 | ASCII | 5 | |
| justin31121 | Manyprime | 40 | |
| maksushka | Transparency | 50 | |
| Tian47 | Great Snakes | 3 | |
| Tian47 | Finding Flags | 2 | |
| Grano | XOR Starter | 10 | |
| maksushka | SSH Keys | 35 | |
| maksushka | CERTainly not | 30 | |
| g_one_1010 | You either know, XOR you don't | 30 | |
| maksushka | Privacy-Enhanced Mail? | 25 | |
| kflippy | Bytes and Big Integers | 10 | |
| Wombat484 | Favourite byte | 20 | |
| maksushka | Lemur XOR | 40 | |
| hlpkv | Favourite byte | 20 | |
| Wombat484 | XOR Properties | 15 | |
| Crypton1te | Bytes and Big Integers | 10 | |
| Wombat484 | XOR Starter | 10 | |
| TolikTipaTut | Finding Flags | 2 | |
| aysesudekrbl | You either know, XOR you don't | 30 | |
| hlpkv | XOR Properties | 15 | |
| tatirb | ASCII | 5 | |
| lisacnakrovu | ASCII | 5 | |
| zeroman | Favourite byte | 20 | |
| lisacnakrovu | Great Snakes | 3 | |
| Wombat484 | Bytes and Big Integers | 10 | |
| lisacnakrovu | Finding Flags | 2 | |
| aysesudekrbl | Favourite byte | 20 | |
| avm | Dancing Queen | 120 | |
| gunditza | Quadratic Residues | 25 | |
| Duckart | Montgomery's Ladder | 40 | |
| aysesudekrbl | XOR Properties | 15 | |
| MichaelJL | You either know, XOR you don't | 30 | |
| lcybr19 | XOR Starter | 10 | |
| gunditza | Modular Inverting | 25 | |
| hanahiennguyen | Adrien's Signs | 80 | |
| gunditza | Modular Arithmetic 2 | 20 | |
| hlpkv | XOR Starter | 10 | |
| aysesudekrbl | XOR Starter | 10 | |
| g_one_1010 | Favourite byte | 20 | |
| 3m_Mohamed | Square Eyes | 35 | |
| shadow_dune | Static Client 2 | 120 | |
| gunditza | Modular Arithmetic 1 | 20 | |
| KaiLou | Network Attacks | 5 | |
| hlpkv | Bytes and Big Integers | 10 | |
| gunditza | Extended GCD | 20 |
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