| Date | User | Challenge | Score |
| ygulusen | Working with Fields | 10 | |
| FuFon | Modular Square Root | 35 | |
| FuFon | Legendre Symbol | 35 | |
| FuFon | Quadratic Residues | 25 | |
| HansWeber | ASCII | 5 | |
| KoKoshKo | Null or Never | 100 | |
| Ablayhan9900 | Null or Never | 100 | |
| eded | Great Snakes | 3 | |
| J0mx | XOR Properties | 15 | |
| Acja | ASCII | 5 | |
| eded | Finding Flags | 2 | |
| carwyn17jones | ASCII | 5 | |
| Ablayhan9900 | Bespoke Padding | 100 | |
| Almasbek | Factoring | 15 | |
| TyLion | Working with Fields | 10 | |
| hackerd | Modular Arithmetic 1 | 20 | |
| carwyn17jones | Great Snakes | 3 | |
| Amirlan | Hex | 5 | |
| TyLion | Modulus Inutilis | 50 | |
| Amirlan | ASCII | 5 | |
| ygulusen | Modular Exponentiation | 10 | |
| aruzhan01 | RSA Decryption | 20 | |
| aruzhan01 | Private Keys | 20 | |
| arsany | ASCII | 5 | |
| Tina980885 | Privacy-Enhanced Mail? | 25 | |
| aruzhan01 | Euler's Totient | 20 | |
| HansWeber | Great Snakes | 3 | |
| HansWeber | Finding Flags | 2 | |
| Ablayhan9900 | Ron was Wrong, Whit is Right | 90 | |
| ilYYas | Modular Inverting | 25 | |
| T3nk3yyy | Modular Binomials | 80 | |
| lerequin | Point Addition | 30 | |
| Almasbek | RSA Signatures | 25 | |
| ilYYas | Modular Arithmetic 2 | 20 | |
| ilYYas | Modular Arithmetic 1 | 20 | |
| ilYYas | Extended GCD | 20 | |
| hackerd | Extended GCD | 20 | |
| ilYYas | Greatest Common Divisor | 15 | |
| Almasbek | Private Keys | 20 | |
| KoKoshKo | The Good, The Pad, The Ugly | 100 | |
| zhanga | The Good, The Pad, The Ugly | 100 | |
| Acja | Great Snakes | 3 | |
| jonnytang | Secure Protocols | 5 | |
| TyLion | Salty | 20 | |
| hackerd | Greatest Common Divisor | 15 | |
| jonnytang | Token Appreciation | 5 | |
| zhanga | Marin's Secrets | 50 | |
| arsany | Network Attacks | 5 | |
| Anti_ | Bringing It All Together | 50 | |
| Amirlan | Great Snakes | 3 |
You are now level Current level