| Date | User | Challenge | Score |
| jowithu | Round Keys | 20 | |
| emyhh | ASCII | 5 | |
| jowithu | Structure of AES | 15 | |
| emyhh | Great Snakes | 3 | |
| jowithu | Resisting Bruteforce | 10 | |
| hakka52 | Encoding Challenge | 40 | |
| 0xTFS | Base64 | 10 | |
| emyhh | Finding Flags | 2 | |
| jowithu | Keyed Permutations | 5 | |
| jowithu | Modular Binomials | 80 | |
| hakka52 | Network Attacks | 5 | |
| 0xTFS | Hex | 5 | |
| 0xTFS | ASCII | 5 | |
| sangph2612 | Modulus Inutilis | 50 | |
| 0xTFS | Great Snakes | 3 | |
| sangph2612 | Salty | 20 | |
| DancingDragon03 | XOR Properties | 15 | |
| mj492797 | ASCII | 5 | |
| pok | Extended GCD | 20 | |
| shamandeer | Quadratic Residues | 25 | |
| DancingDragon03 | XOR Starter | 10 | |
| Hedgehog_1 | Hex | 5 | |
| DavidTruong | Marin's Secrets | 50 | |
| Olive9620 | Encoding Challenge | 40 | |
| DancingDragon03 | Bytes and Big Integers | 10 | |
| mj492797 | Great Snakes | 3 | |
| Neutr0nys | JSON in JSON | 40 | |
| Neutr0nys | RSA or HMAC? | 35 | |
| Hedgehog_1 | ASCII | 5 | |
| pok | Greatest Common Divisor | 15 | |
| mj492797 | Finding Flags | 2 | |
| Olive9620 | Bytes and Big Integers | 10 | |
| boxvcu23 | XOR Starter | 10 | |
| Hedgehog_1 | Great Snakes | 3 | |
| Hedgehog_1 | Finding Flags | 2 | |
| shamandeer | Modular Inverting | 25 | |
| DancingDragon03 | Base64 | 10 | |
| shamandeer | Modular Arithmetic 2 | 20 | |
| Neutr0nys | JWT Secrets | 25 | |
| Neutr0nys | No Way JOSE | 20 | |
| DancingDragon03 | Hex | 5 | |
| Neutr0nys | JWT Sessions | 10 | |
| Neutr0nys | Token Appreciation | 5 | |
| allowu | Modular Binomials | 80 | |
| boxvcu23 | Bytes and Big Integers | 10 | |
| Tactical_Nerd | Flipping Cookie | 60 | |
| LemonHeart | Everything is Big | 70 | |
| allowu | Adrien's Signs | 80 | |
| LemonHeart | Modulus Inutilis | 50 | |
| pok | You either know, XOR you don't | 30 |
You are now level Current level