| Date | User | Challenge | Score |
| aidapotter | Bytes and Big Integers | 10 | |
| AruRajaIblis | XOR Properties | 15 | |
| linimasa | XOR Starter | 10 | |
| Cyber02 | Finding Flags | 2 | |
| J0kus | Great Snakes | 3 | |
| Tpanga361 | Base64 | 10 | |
| Tpanga361 | Hex | 5 | |
| gwpro | Chinese Remainder Theorem | 40 | |
| aidapotter | Base64 | 10 | |
| Tpanga361 | ASCII | 5 | |
| w0mbyte | Euler's Totient | 20 | |
| ragvlad1606v | You either know, XOR you don't | 30 | |
| aidapotter | Hex | 5 | |
| Mycr0ft | Greatest Common Divisor | 15 | |
| LiroSphere | Base64 | 10 | |
| aidapotter | ASCII | 5 | |
| ragvlad1606v | Favourite byte | 20 | |
| LiroSphere | Hex | 5 | |
| LiroSphere | ASCII | 5 | |
| LiroSphere | Great Snakes | 3 | |
| LiroSphere | Finding Flags | 2 | |
| Tpanga361 | Great Snakes | 3 | |
| aidapotter | Great Snakes | 3 | |
| w0mbyte | Public Keys | 15 | |
| w0mbyte | Modular Exponentiation | 10 | |
| ragvlad1606v | XOR Properties | 15 | |
| lhc464 | Confusion through Substitution | 25 | |
| Jess_prg | Hex | 5 | |
| arp1t0x | Ron was Wrong, Whit is Right | 90 | |
| didwnghks418 | Resisting Bruteforce | 10 | |
| deregistereduser | Base64 | 10 | |
| gwpro | Modular Square Root | 35 | |
| Tpanga361 | Finding Flags | 2 | |
| arp1t0x | Endless Emails | 150 | |
| suisdavid | What's My Kernel | 70 | |
| berran | Montgomery's Ladder | 40 | |
| aidapotter | Finding Flags | 2 | |
| didwnghks418 | Keyed Permutations | 5 | |
| lhc464 | Round Keys | 20 | |
| yzxyzxyzxyzxyzx | Marin's Secrets | 50 | |
| yzxyzxyzxyzxyzx | Infinite Descent | 50 | |
| Ethantan | Diffusion through Permutation | 30 | |
| gwpro | Legendre Symbol | 35 | |
| didwnghks418 | Modulus Inutilis | 50 | |
| xristoforos | XOR Properties | 15 | |
| Adel_Cr | Keyed Permutations | 5 | |
| lebonbon | Resisting Bruteforce | 10 | |
| Ethantan | Confusion through Substitution | 25 | |
| arp1t0x | Everything is Still Big | 100 | |
| linimasa | Bytes and Big Integers | 10 |
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