| Date | User | Challenge | Score |
| y_0h | Favourite byte | 20 | |
| k1ll3r_t01 | Dancing Queen | 120 | |
| exoq | Privacy-Enhanced Mail? | 25 | |
| rhernandezgar | XOR Starter | 10 | |
| s4nch0 | Modular Arithmetic 1 | 20 | |
| leodavinci0591 | Favourite byte | 20 | |
| oooffooo | Modulus Inutilis | 50 | |
| k1ll3r_t01 | Stream of Consciousness | 80 | |
| 5H4RKK | What's My Kernel | 70 | |
| oooffooo | Salty | 20 | |
| ccarleyy | Finding Flags | 2 | |
| TallerGiraffe | Modular Arithmetic 2 | 20 | |
| TallerGiraffe | Modular Arithmetic 1 | 20 | |
| SufferingCar | Finding Flags | 2 | |
| origabai | Everything is Big | 70 | |
| cbr4l0k | Privacy-Enhanced Mail? | 25 | |
| w4llnut | Chinese Remainder Theorem | 40 | |
| adel313 | ASCII | 5 | |
| ShubaDuck | Euler's Totient | 20 | |
| cyber_learnn_dre | Great Snakes | 3 | |
| lftroq | Successive Powers | 60 | |
| leodavinci0591 | XOR Properties | 15 | |
| ShubaDuck | Public Keys | 15 | |
| adel313 | Great Snakes | 3 | |
| AbdullahKhan | Quadratic Residues | 25 | |
| ShubaDuck | Modular Exponentiation | 10 | |
| Hussiensonna | Greatest Common Divisor | 15 | |
| exoq | Lemur XOR | 40 | |
| adel313 | Finding Flags | 2 | |
| Farkladin | Modular Arithmetic 1 | 20 | |
| k1ll3r_t01 | CTRIME | 70 | |
| AbdullahKhan | Modular Inverting | 25 | |
| AbdullahKhan | Modular Arithmetic 2 | 20 | |
| Neutr0nys | CTRIME | 70 | |
| AbdullahKhan | Modular Arithmetic 1 | 20 | |
| cbr4l0k | Encoding Challenge | 40 | |
| AbdullahKhan | Extended GCD | 20 | |
| lftroq | Adrien's Signs | 80 | |
| Shaur1021 | Hex | 5 | |
| qwra | Greatest Common Divisor | 15 | |
| Shaur1021 | ASCII | 5 | |
| Shaur1021 | Great Snakes | 3 | |
| Shaur1021 | Finding Flags | 2 | |
| BatBato | Flipping Cookie | 60 | |
| k1ll3r_t01 | Bean Counter | 60 | |
| lftroq | Modular Binomials | 80 | |
| leodavinci0591 | XOR Starter | 10 | |
| coolgamer01 | Bytes and Big Integers | 10 | |
| AbdullahKhan | Greatest Common Divisor | 15 | |
| AbdullahKhan | You either know, XOR you don't | 30 |
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