| Date | User | Challenge | Score |
| viniciusbenitez | Great Snakes | 3 | |
| ShirleenW | Modular Binomials | 80 | |
| viniciusbenitez | Finding Flags | 2 | |
| TyLion | Quadratic Residues | 25 | |
| ShirleenW | Adrien's Signs | 80 | |
| grfenk | You either know, XOR you don't | 30 | |
| treycyAndres | Great Snakes | 3 | |
| GAlvarado | Bytes and Big Integers | 10 | |
| ShirleenW | Modular Square Root | 35 | |
| treycyAndres | Finding Flags | 2 | |
| mathical0732 | Bean Counter | 60 | |
| mauust | Salty | 20 | |
| Marsianin | Bean Counter | 60 | |
| Marsianin | Symmetry | 50 | |
| Marsianin | Flipping Cookie | 60 | |
| ofdeat | JWT Secrets | 25 | |
| janolav | Greatest Common Divisor | 15 | |
| Marsianin | ECB CBC WTF | 55 | |
| ShirleenW | Chinese Remainder Theorem | 40 | |
| Alduin54 | Modular Arithmetic 1 | 20 | |
| Marsianin | ECB Oracle | 60 | |
| Marsianin | Passwords as Keys | 50 | |
| grfenk | Favourite byte | 20 | |
| samir_waleed | You either know, XOR you don't | 30 | |
| julka | Base64 | 10 | |
| samir_waleed | Favourite byte | 20 | |
| samir_waleed | XOR Properties | 15 | |
| ShirleenW | Legendre Symbol | 35 | |
| ratnadeepb | Finding Flags | 2 | |
| M_ndinda | Quadratic Residues | 25 | |
| ofdeat | No Way JOSE | 20 | |
| M_ndinda | Modular Inverting | 25 | |
| ShirleenW | Quadratic Residues | 25 | |
| M_ndinda | Modular Arithmetic 2 | 20 | |
| M_ndinda | Modular Arithmetic 1 | 20 | |
| hk81918 | Quadratic Residues | 25 | |
| ShirleenW | Modular Inverting | 25 | |
| M_ndinda | Extended GCD | 20 | |
| ofdeat | JWT Sessions | 10 | |
| ShirleenW | Modular Arithmetic 2 | 20 | |
| lerequin | Bean Counter | 60 | |
| ShirleenW | Modular Arithmetic 1 | 20 | |
| rizzlaishere | ASCII | 5 | |
| ShirleenW | Extended GCD | 20 | |
| ShirleenW | Greatest Common Divisor | 15 | |
| ofdeat | Token Appreciation | 5 | |
| julka | Hex | 5 | |
| M_ndinda | Greatest Common Divisor | 15 | |
| DrakBehr | Great Snakes | 3 | |
| s3edr4re | Proofs of Knowledge | 20 |
You are now level Current level