| Date | User | Challenge | Score |
| alexej | ASCII | 5 | |
| kajkos | Hex | 5 | |
| majka_pav | Hex | 5 | |
| TheRichmond | ASCII | 5 | |
| vagner | XOR Starter | 10 | |
| amenahayajneh | Great Snakes | 3 | |
| majka_pav | ASCII | 5 | |
| kajkos | ASCII | 5 | |
| Timotei | Great Snakes | 3 | |
| kajkos | Great Snakes | 3 | |
| flipflopmlynar | XOR Starter | 10 | |
| flipflopmlynar | Bytes and Big Integers | 10 | |
| alexej | Great Snakes | 3 | |
| majka_pav | Great Snakes | 3 | |
| TheRichmond | Great Snakes | 3 | |
| Superior | One Round Crypto (ECSC 2024 (Italy)) | 0 | |
| NiNkaM | Finding Flags | 2 | |
| vagner | Bytes and Big Integers | 10 | |
| flipflopmlynar | Base64 | 10 | |
| miio | Bytes and Big Integers | 10 | |
| vagner | Base64 | 10 | |
| flipflopmlynar | Hex | 5 | |
| vagner | Hex | 5 | |
| gKrust | Favourite byte | 20 | |
| vagner | ASCII | 5 | |
| flipflopmlynar | ASCII | 5 | |
| vagner | Great Snakes | 3 | |
| Alfred_Gitonga | Legendre Symbol | 35 | |
| flipflopmlynar | Great Snakes | 3 | |
| Tovgov | Finding Flags | 2 | |
| lfvbdghkjfgm | No Way Back Home | 100 | |
| alexej | Finding Flags | 2 | |
| TheRichmond | Finding Flags | 2 | |
| miio | Base64 | 10 | |
| Timotei | Finding Flags | 2 | |
| Alfred_Gitonga | Quadratic Residues | 25 | |
| MichalVrba | Finding Flags | 2 | |
| vagner | Finding Flags | 2 | |
| Huski4Lyfe | Finding Flags | 2 | |
| Alfred_Gitonga | Modular Inverting | 25 | |
| flipflopmlynar | Finding Flags | 2 | |
| kajkos | Finding Flags | 2 | |
| majka_pav | Finding Flags | 2 | |
| Alfred_Gitonga | Modular Arithmetic 2 | 20 | |
| mohammad2005 | Let's Decrypt Again | 175 | |
| Alfred_Gitonga | Modular Arithmetic 1 | 20 | |
| miio | Hex | 5 | |
| itg6j | Legendre Symbol | 35 | |
| breadtank08 | XOR Starter | 10 | |
| Cadi_Daniel | Adrien's Signs | 80 |
You are now level Current level