| Date | User | Challenge | Score |
| KMA_SiriuS_ | Legendre Symbol | 35 | |
| lowGround | Modular Arithmetic 2 | 20 | |
| dethym | XOR Properties | 15 | |
| Warri | Let's Prove It Again | 175 | |
| AESpider | Breaking SIDH | 250 | |
| 0x00696e6964756f | Gaussian Reduction | 50 | |
| sadikuzzamantare | Base64 | 10 | |
| khrpy | Finding Flags | 2 | |
| JellyGames | Infinite Descent | 50 | |
| Kyle_0215 | Symmetry | 50 | |
| linhkhong | Modular Square Root | 35 | |
| sadikuzzamantare | Hex | 5 | |
| 0x00696e6964756f | What's a Lattice? | 40 | |
| h1n4t4 | XOR Properties | 15 | |
| pypykatz | Hex | 5 | |
| A2RU | An Exceptional Twisted Mind | 125 | |
| sadikuzzamantare | ASCII | 5 | |
| pypykatz | ASCII | 5 | |
| sadikuzzamantare | Great Snakes | 3 | |
| trcmaster | Transparency | 50 | |
| sadikuzzamantare | Finding Flags | 2 | |
| Aircloud0030 | Modular Inverting | 25 | |
| AT42110 | Passwords as Keys | 50 | |
| linhkhong | Legendre Symbol | 35 | |
| mahu | Parameter Injection | 60 | |
| pypykatz | Great Snakes | 3 | |
| VladBoro | Legendre Symbol | 35 | |
| A2RU | A Twisted Mind | 80 | |
| trcmaster | SSH Keys | 35 | |
| dethym | XOR Starter | 10 | |
| 1s0m0rph1sm | Twin Keys | 100 | |
| Cadaeib65 | Static Client | 100 | |
| cutiepie | Quadratic Residues | 25 | |
| trcmaster | CERTainly not | 30 | |
| KMA_SiriuS_ | Quadratic Residues | 25 | |
| Warri | Let's Prove It | 120 | |
| JellyGames | Endless Emails | 150 | |
| user_nam | Finding Flags | 2 | |
| abdessamadnass | Base64 | 10 | |
| VladBoro | Quadratic Residues | 25 | |
| Kairo_ops | You either know, XOR you don't | 30 | |
| trcmaster | Privacy-Enhanced Mail? | 25 | |
| VladBoro | Modular Inverting | 25 | |
| Laman | You either know, XOR you don't | 30 | |
| VladBoro | Modular Arithmetic 2 | 20 | |
| VladBoro | Modular Arithmetic 1 | 20 | |
| hackermohammedal | Great Snakes | 3 | |
| lfvbdghkjfgm | Crossed Wires | 100 | |
| mahu | Deriving Symmetric Keys | 40 | |
| Laman | Favourite byte | 20 |
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