| Date | User | Challenge | Score |
| Incognito | Structure of AES | 15 | |
| dioguebas | Base64 | 10 | |
| ZheSpark | ASCII | 5 | |
| ZheSpark | Great Snakes | 3 | |
| dioguebas | Hex | 5 | |
| ULUZ | Bytes and Big Integers | 10 | |
| qthang | Bytes and Big Integers | 10 | |
| AT42110 | Chinese Remainder Theorem | 40 | |
| mihyun | Bytes and Big Integers | 10 | |
| bsvac | No Way Back Home | 100 | |
| ULUZ | Base64 | 10 | |
| ULUZ | Hex | 5 | |
| F0rhex | Modular Arithmetic 1 | 20 | |
| ULUZ | ASCII | 5 | |
| veggietales | Modular Arithmetic 1 | 20 | |
| ULUZ | Great Snakes | 3 | |
| mihyun | Base64 | 10 | |
| ULUZ | Finding Flags | 2 | |
| personjs | Stream of Consciousness | 80 | |
| bsvac | Broken RSA | 100 | |
| AT42110 | Modular Square Root | 35 | |
| dioguebas | ASCII | 5 | |
| kera | Base64 | 10 | |
| kera | Hex | 5 | |
| Mrcrypto | Finding Flags | 2 | |
| F0rhex | Extended GCD | 20 | |
| shurayz | Size and Basis | 15 | |
| shurayz | Vectors | 10 | |
| shokapikfort | Manyprime | 40 | |
| up_chs | Legendre Symbol | 35 | |
| kera | ASCII | 5 | |
| mihyun | Hex | 5 | |
| dioguebas | Great Snakes | 3 | |
| kera | Great Snakes | 3 | |
| dioguebas | Finding Flags | 2 | |
| up_chs | Quadratic Residues | 25 | |
| kera | Finding Flags | 2 | |
| shurayz | Moving Problems | 150 | |
| personjs | CTRIME | 70 | |
| F0rhex | Greatest Common Divisor | 15 | |
| toliphye | Modular Binomials | 80 | |
| Purplelight_ | Base64 | 10 | |
| up_chs | Modular Inverting | 25 | |
| up_chs | Modular Arithmetic 2 | 20 | |
| personjs | Triple DES | 60 | |
| up_chs | Modular Arithmetic 1 | 20 | |
| Purplelight_ | Hex | 5 | |
| up_chs | Extended GCD | 20 | |
| Purplelight_ | ASCII | 5 | |
| dkoazwlearning | Additive | 70 |
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