| Date | User | Challenge | Score |
| pentester | Euler's Totient | 20 | |
| Marineac | SSH Keys | 35 | |
| ZUKHRA | Finding Flags | 2 | |
| Alinur | Bytes and Big Integers | 10 | |
| ASET | Base64 | 10 | |
| Marineac | CERTainly not | 30 | |
| medina_iskakova | XOR Properties | 15 | |
| Alina__Strelkova | XOR Properties | 15 | |
| Valeri | Quadratic Residues | 25 | |
| Alinur | Base64 | 10 | |
| Valeri | Modular Inverting | 25 | |
| hyouchun | Modular Binomials | 80 | |
| Nicoleta | Chinese Remainder Theorem | 40 | |
| Nicoleta | Modular Square Root | 35 | |
| BADWARE | RSA Decryption | 20 | |
| Aibares | ASCII | 5 | |
| medina_iskakova | XOR Starter | 10 | |
| Alina__Strelkova | XOR Starter | 10 | |
| ASET | Hex | 5 | |
| Nicoleta | Legendre Symbol | 35 | |
| Veraa | Base64 | 10 | |
| Alinur | Hex | 5 | |
| Alinur | ASCII | 5 | |
| Rellik | Structure of AES | 15 | |
| Zhenzhu | Hex | 5 | |
| medina_iskakova | Bytes and Big Integers | 10 | |
| Nicoleta | Quadratic Residues | 25 | |
| RomanKaplenko | XOR Starter | 10 | |
| Alina__Strelkova | Bytes and Big Integers | 10 | |
| ggfri | Base64 | 10 | |
| CristoferNice | Modular Square Root | 35 | |
| sosison123321 | Base64 | 10 | |
| AIRAT | Bytes and Big Integers | 10 | |
| Nicoleta | Modular Inverting | 25 | |
| BADWARE | Private Keys | 20 | |
| azbuka | Finding Flags | 2 | |
| Nicoleta | Modular Arithmetic 2 | 20 | |
| CristoferNice | Legendre Symbol | 35 | |
| AIRAT | Base64 | 10 | |
| bornTOhack | Base64 | 10 | |
| Alina__Strelkova | Base64 | 10 | |
| ASET | ASCII | 5 | |
| medina_iskakova | Base64 | 10 | |
| Marineac | Privacy-Enhanced Mail? | 25 | |
| LucianDediu | Legendre Symbol | 35 | |
| Valeri | Modular Arithmetic 2 | 20 | |
| medina_iskakova | Hex | 5 | |
| Valeri | Modular Arithmetic 1 | 20 | |
| Alina__Strelkova | Hex | 5 | |
| Nicoleta | Modular Arithmetic 1 | 20 |
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