| Date | User | Challenge | Score |
| alright | Greatest Common Divisor | 15 | |
| rakshak07 | XOR Properties | 15 | |
| triplemg | Base64 | 10 | |
| Kiyowa | Everything is Big | 70 | |
| ssdunit | Extended GCD | 20 | |
| Charubhala | Finding Flags | 2 | |
| triplemg | Hex | 5 | |
| Athnos | XOR Starter | 10 | |
| kosa4416 | Base64 | 10 | |
| ali_tech | Lazy CBC | 60 | |
| artem_1 | Successive Powers | 60 | |
| ssdunit | Greatest Common Divisor | 15 | |
| ali_tech | Flipping Cookie | 60 | |
| thisismetrying | ECB Oracle | 60 | |
| ali_tech | ECB CBC WTF | 55 | |
| Athnos | Bytes and Big Integers | 10 | |
| leon5a17 | Finding Flags | 2 | |
| kurumi_ | Crossed Wires | 100 | |
| Kiyowa | Modulus Inutilis | 50 | |
| faster | XOR Starter | 10 | |
| kosa4416 | Hex | 5 | |
| inthezonewithme | ASCII | 5 | |
| Stephenkylle | Finding Flags | 2 | |
| inthezonewithme | Great Snakes | 3 | |
| cipher_muse777 | Modular Inverting | 25 | |
| cipher_muse777 | Modular Arithmetic 2 | 20 | |
| VuiVe | Rhetorical Oracle | 100 | |
| arraynfeeza | XOR Properties | 15 | |
| inthezonewithme | Finding Flags | 2 | |
| doua | ECB CBC WTF | 55 | |
| hypertext | Great Snakes | 3 | |
| Athnos | Base64 | 10 | |
| hypertext | Finding Flags | 2 | |
| cipher_muse777 | Modular Arithmetic 1 | 20 | |
| cipher_muse777 | Extended GCD | 20 | |
| fsharp | Seventy-Two | 50 | |
| ssdunit | Network Attacks | 5 | |
| shihab | ASCII | 5 | |
| Kiyowa | Salty | 20 | |
| Athnos | Hex | 5 | |
| ssdunit | You either know, XOR you don't | 30 | |
| shihab | Hex | 5 | |
| iliap | Passwords as Keys | 50 | |
| Athnos | ASCII | 5 | |
| maincharacter421 | Great Snakes | 3 | |
| SaborioA | Modular Binomials | 80 | |
| SaborioA | Adrien's Signs | 80 | |
| SaborioA | Chinese Remainder Theorem | 40 | |
| SaborioA | Modular Square Root | 35 | |
| kokingeyel123 | Encoding Challenge | 40 |
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