| Date | User | Challenge | Score |
| veggietales | Legendre Symbol | 35 | |
| VISAS_STARFROST | Generators of Groups | 20 | |
| d5s | Bringing It All Together | 50 | |
| nk0 | No Leaks | 100 | |
| halliana | Bit by Bit | 100 | |
| halliana | Armory | 100 | |
| kaiserx | Parameter Injection | 60 | |
| berran | Invariant | 250 | |
| adecandra | XOR Properties | 15 | |
| VISAS_STARFROST | Working with Fields | 10 | |
| adecandra | XOR Starter | 10 | |
| DaffaZhafran | Finding Flags | 2 | |
| Tushpara | Dancing Queen | 120 | |
| adecandra | Bytes and Big Integers | 10 | |
| halliana | RSA vs RNG | 150 | |
| Tushpara | Stream of Consciousness | 80 | |
| Tushpara | Logon Zero | 80 | |
| adecandra | Base64 | 10 | |
| Tushpara | CTRIME | 70 | |
| linggamilan | XOR Starter | 10 | |
| FernaldiSoepono | XOR Starter | 10 | |
| Tushpara | Bean Counter | 60 | |
| ed25519 | Favourite byte | 20 | |
| Tushpara | Symmetry | 50 | |
| Fazriiman | Hex | 5 | |
| Tushpara | Triple DES | 60 | |
| linggamilan | Bytes and Big Integers | 10 | |
| FernaldiSoepono | Bytes and Big Integers | 10 | |
| cuongsl | Modes of Operation Starter | 15 | |
| Tushpara | Lazy CBC | 60 | |
| Fazriiman | ASCII | 5 | |
| Tushpara | Flipping Cookie | 60 | |
| linggamilan | Base64 | 10 | |
| Tushpara | ECB Oracle | 60 | |
| Tushpara | ECB CBC WTF | 55 | |
| Tushpara | Passwords as Keys | 50 | |
| VISAS_STARFROST | Modulus Inutilis | 50 | |
| ub_krypto_25_10 | Favourite byte | 20 | |
| atthaya | Finding Flags | 2 | |
| ub_krypto_25_10 | XOR Properties | 15 | |
| Tushpara | Modes of Operation Starter | 15 | |
| Xtrimi | No Way Back Home | 100 | |
| elyessmida | Background Reading | 5 | |
| Tushpara | Bringing It All Together | 50 | |
| surbhi_chhabra | XOR Properties | 15 | |
| Tushpara | Diffusion through Permutation | 30 | |
| surbhi_chhabra | XOR Starter | 10 | |
| surbhi_chhabra | Bytes and Big Integers | 10 | |
| aarampatzis | Modular Inverting | 25 | |
| satvika | Modes of Operation Starter | 15 |
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