| Date | User | Challenge | Score |
| jerkstone | Hex | 5 | |
| jerkstone | ASCII | 5 | |
| JenseenKai_Yu | Modular Arithmetic 2 | 20 | |
| mdoniyorbekovic | XOR Properties | 15 | |
| n0pal | Bytes and Big Integers | 10 | |
| Sh4d0wl1nk | Great Snakes | 3 | |
| jerkstone | Great Snakes | 3 | |
| ilmaresciallo | Finding Flags | 2 | |
| jerkstone | Finding Flags | 2 | |
| SabikunNahar7 | Hex | 5 | |
| n0pal | Base64 | 10 | |
| SabikunNahar7 | ASCII | 5 | |
| SabikunNahar7 | Great Snakes | 3 | |
| marzanamitul79 | ASCII | 5 | |
| marzanamitul79 | Great Snakes | 3 | |
| dromerolovo | Bytes and Big Integers | 10 | |
| SUPERSUNN | Network Attacks | 5 | |
| SabikunNahar7 | Finding Flags | 2 | |
| marzanamitul79 | Finding Flags | 2 | |
| n0pal | Hex | 5 | |
| a_g_e_n_t47 | Finding Flags | 2 | |
| dasol12 | ASCII | 5 | |
| mdoniyorbekovic | XOR Starter | 10 | |
| Coriolanus | XOR Properties | 15 | |
| n0pal | ASCII | 5 | |
| n0pal | Great Snakes | 3 | |
| AruRajaIblis | Confusion through Substitution | 25 | |
| n0pal | Finding Flags | 2 | |
| dasol12 | Great Snakes | 3 | |
| sopadepollo7 | You either know, XOR you don't | 30 | |
| Ahmad_cyber_007 | ASCII | 5 | |
| d4sh0326 | XOR Starter | 10 | |
| mdoniyorbekovic | Bytes and Big Integers | 10 | |
| dasol12 | Finding Flags | 2 | |
| hshuang | ASCII | 5 | |
| mdoniyorbekovic | Base64 | 10 | |
| hshuang | Great Snakes | 3 | |
| hshuang | Finding Flags | 2 | |
| mdoniyorbekovic | Hex | 5 | |
| mdoniyorbekovic | ASCII | 5 | |
| mdoniyorbekovic | Great Snakes | 3 | |
| mdoniyorbekovic | Finding Flags | 2 | |
| WillEmma172904 | XOR Starter | 10 | |
| sopadepollo7 | Favourite byte | 20 | |
| mrbloopbloop | Resisting Bruteforce | 10 | |
| jhh0406 | Pairing-Based Cryptography | 50 | |
| d4sh0326 | Bytes and Big Integers | 10 | |
| d4sh0326 | Base64 | 10 | |
| d4sh0326 | Hex | 5 | |
| JenseenKai_Yu | Modular Arithmetic 1 | 20 |
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