| Date | User | Challenge | Score |
| magnesen | Great Snakes | 3 | |
| Bren | Modular Binomials | 80 | |
| magnesen | Finding Flags | 2 | |
| Bren | Adrien's Signs | 80 | |
| Sumeya_Halkano | Modular Binomials | 80 | |
| lerequin | Private Keys | 20 | |
| ghastrod | Base64 | 10 | |
| ghastrod | Hex | 5 | |
| d0577 | Resisting Bruteforce | 10 | |
| etale | Base64 | 10 | |
| ghastrod | ASCII | 5 | |
| Shriya_Arun | Confusion through Substitution | 25 | |
| Sumeya_Halkano | Adrien's Signs | 80 | |
| moi_c_sam | RSA Decryption | 20 | |
| deveshd020 | Base64 | 10 | |
| ghastrod | Great Snakes | 3 | |
| etale | Hex | 5 | |
| ADDADDA | Encoding Challenge | 40 | |
| ramu12 | Great Snakes | 3 | |
| ghastrod | Finding Flags | 2 | |
| etale | ASCII | 5 | |
| ramu12 | Finding Flags | 2 | |
| Sumeya_Halkano | Chinese Remainder Theorem | 40 | |
| etale | Great Snakes | 3 | |
| Bren | Chinese Remainder Theorem | 40 | |
| etale | Finding Flags | 2 | |
| Bren | Modular Square Root | 35 | |
| Wh | Modular Exponentiation | 10 | |
| deveshd020 | Hex | 5 | |
| Sumeya_Halkano | Modular Square Root | 35 | |
| Bren | Legendre Symbol | 35 | |
| amritha | You either know, XOR you don't | 30 | |
| Bren | Quadratic Residues | 25 | |
| Bren | Modular Inverting | 25 | |
| Marco89 | Scalar Multiplication | 35 | |
| Sumeya_Halkano | Legendre Symbol | 35 | |
| Bren | Modular Arithmetic 2 | 20 | |
| Stringy | Finding Flags | 2 | |
| karimwaleed | Square Eyes | 35 | |
| deveshd020 | ASCII | 5 | |
| yousefeldeeb | You either know, XOR you don't | 30 | |
| Wh | Favourite byte | 20 | |
| moi_c_sam | Private Keys | 20 | |
| Bren | Modular Arithmetic 1 | 20 | |
| Bren | Extended GCD | 20 | |
| Bren | Greatest Common Divisor | 15 | |
| tarakanus10k | Deriving Symmetric Keys | 40 | |
| karimwaleed | Monoprime | 30 | |
| Abhinav_Manoj | Bringing It All Together | 50 | |
| deveshd020 | Great Snakes | 3 |
You are now level Current level