| Date | User | Challenge | Score |
| Hamoud | You either know, XOR you don't | 30 | |
| konmr | XOR Starter | 10 | |
| Graymatter925 | Base64 | 10 | |
| Graymatter925 | Hex | 5 | |
| Hamoud | Favourite byte | 20 | |
| konmr | Bytes and Big Integers | 10 | |
| konmr | Base64 | 10 | |
| konmr | Hex | 5 | |
| denarzai | Greatest Common Divisor | 15 | |
| Hamoud | XOR Properties | 15 | |
| mauwyh | Hex | 5 | |
| Graymatter925 | ASCII | 5 | |
| Kubistmi | Bytes and Big Integers | 10 | |
| Kubistmi | Base64 | 10 | |
| Kubistmi | Hex | 5 | |
| konmr | ASCII | 5 | |
| Kubistmi | ASCII | 5 | |
| abdelhak | The j-invariant | 20 | |
| Kubistmi | Great Snakes | 3 | |
| konmr | Great Snakes | 3 | |
| goosebud21 | Modes of Operation Starter | 15 | |
| Hamoud | XOR Starter | 10 | |
| mauwyh | ASCII | 5 | |
| konmr | Finding Flags | 2 | |
| XelenaG | ASCII | 5 | |
| PSilva | Base64 | 10 | |
| tarujohanak | Round Keys | 20 | |
| XelenaG | Great Snakes | 3 | |
| Graymatter925 | Great Snakes | 3 | |
| PSilva | Hex | 5 | |
| Kae | Let's Decrypt | 80 | |
| Hamoud | Great Snakes | 3 | |
| XelenaG | Finding Flags | 2 | |
| Anass67 | Chinese Remainder Theorem | 40 | |
| Cyberseal | Greatest Common Divisor | 15 | |
| PSilva | ASCII | 5 | |
| Anass67 | Modular Square Root | 35 | |
| PSilva | Great Snakes | 3 | |
| denarzai | Lemur XOR | 40 | |
| goosebud21 | Bringing It All Together | 50 | |
| PSilva | Finding Flags | 2 | |
| zDark | Favourite byte | 20 | |
| Technoblade | ASCII | 5 | |
| mauwyh | Great Snakes | 3 | |
| mauwyh | Finding Flags | 2 | |
| Technoblade | Great Snakes | 3 | |
| Technoblade | Finding Flags | 2 | |
| zDark | XOR Properties | 15 | |
| edlebg | Bytes and Big Integers | 10 | |
| goosebud21 | Diffusion through Permutation | 30 |
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