| Date | User | Challenge | Score |
| wibo | XOR Starter | 10 | |
| wibo | Bytes and Big Integers | 10 | |
| khanhlm091 | Finding Flags | 2 | |
| wibo | Base64 | 10 | |
| ShubaDuck | ECB Oracle | 60 | |
| stpt | CERTainly not | 30 | |
| wibo | Hex | 5 | |
| wibo | ASCII | 5 | |
| wibo | Great Snakes | 3 | |
| wibo | Finding Flags | 2 | |
| Alice_ez | Finding Flags | 2 | |
| 25520158 | Everything is Still Big | 100 | |
| stpt | Privacy-Enhanced Mail? | 25 | |
| vivisect0r | Chinese Remainder Theorem | 40 | |
| 25520158 | Crossed Wires | 100 | |
| 25520158 | Everything is Big | 70 | |
| qwra | Hex | 5 | |
| 25520158 | Modulus Inutilis | 50 | |
| 25520158 | Salty | 20 | |
| NeutralB | Modular Binomials | 80 | |
| seung3096 | XOR Properties | 15 | |
| quochuy147 | Privacy-Enhanced Mail? | 25 | |
| yuxuan | XOR Starter | 10 | |
| qwra | ASCII | 5 | |
| quochuy147 | Lemur XOR | 40 | |
| lyx000000 | Favourite byte | 20 | |
| _r0ss_ | Finding Flags | 2 | |
| PatoDoronDad | Modular Inverting | 25 | |
| stpt | Modular Inverting | 25 | |
| jhonatan123 | Modular Inverting | 25 | |
| seung3096 | XOR Starter | 10 | |
| kaisu980 | Modular Arithmetic 1 | 20 | |
| Kiwel | Modular Arithmetic 2 | 20 | |
| jhonatan123 | Modular Arithmetic 2 | 20 | |
| BOTk | Extended GCD | 20 | |
| DarkinCypher | Extended GCD | 20 | |
| vivisect0r | Modular Square Root | 35 | |
| rexest | Modular Arithmetic 1 | 20 | |
| blackcavia87 | Modular Arithmetic 1 | 20 | |
| Mimi_12 | Extended GCD | 20 | |
| Kiwel | Modular Arithmetic 1 | 20 | |
| Cronoz00 | Quadratic Residues | 25 | |
| MonkeyRoot | Modular Arithmetic 1 | 20 | |
| Chenskie | Static Client 2 | 120 | |
| Chenskie | Additive | 70 | |
| Chenskie | Static Client | 100 | |
| Chenskie | Export-grade | 100 | |
| Cronoz00 | Modular Inverting | 25 | |
| Chenskie | Parameter Injection | 60 | |
| MilkiSushi | Greatest Common Divisor | 15 |
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