| Date | User | Challenge | Score |
| milashack | Finding Flags | 2 | |
| caracallll | XOR Starter | 10 | |
| NOWD | Favourite byte | 20 | |
| Smoggy | RSA Signatures | 25 | |
| sia09 | Finding Flags | 2 | |
| mdudek | Bytes and Big Integers | 10 | |
| nnjj | ASCII | 5 | |
| nnjj | Great Snakes | 3 | |
| mdudek | Base64 | 10 | |
| nnjj | Finding Flags | 2 | |
| gakenyimm | You either know, XOR you don't | 30 | |
| ItsAll0ver | Modular Inverting | 25 | |
| m0nc3f3 | You either know, XOR you don't | 30 | |
| violson | Modular Arithmetic 2 | 20 | |
| gakenyimm | Favourite byte | 20 | |
| zhy | Greatest Common Divisor | 15 | |
| sergik | Modulus Inutilis | 50 | |
| Smoggy | RSA Decryption | 20 | |
| gakenyimm | XOR Properties | 15 | |
| ItsAll0ver | Modular Arithmetic 2 | 20 | |
| NOWD | XOR Properties | 15 | |
| Smoggy | Private Keys | 20 | |
| ddiibra69 | Salty | 20 | |
| bes | Square Eyes | 35 | |
| Smoggy | Euler's Totient | 20 | |
| mdudek | Hex | 5 | |
| Holzarim | Base64 | 10 | |
| sergik | Salty | 20 | |
| Smoggy | Public Keys | 15 | |
| dikaDzeas | Hex | 5 | |
| m0nc3f3 | Favourite byte | 20 | |
| ItsAll0ver | Modular Arithmetic 1 | 20 | |
| Smoggy | Modular Exponentiation | 10 | |
| adriia0 | Modular Inverting | 25 | |
| ItsAll0ver | Extended GCD | 20 | |
| ddiibra69 | Square Eyes | 35 | |
| InTime | No Way JOSE | 20 | |
| m0nc3f3 | XOR Properties | 15 | |
| ItsAll0ver | Greatest Common Divisor | 15 | |
| mdudek | ASCII | 5 | |
| violson | Modular Arithmetic 1 | 20 | |
| dikaDzeas | ASCII | 5 | |
| lopata | Great Snakes | 3 | |
| InTime | Secure Protocols | 5 | |
| ddiibra69 | Monoprime | 30 | |
| Holzarim | Hex | 5 | |
| mdudek | Network Attacks | 5 | |
| lopata | Finding Flags | 2 | |
| ddiibra69 | RSA Signatures | 25 | |
| bes | Inferius Prime | 30 |
You are now level Current level