| Date | User | Challenge | Score |
| playerXLR8 | Favourite byte | 20 | |
| frudewor | Legendre Symbol | 35 | |
| agentx106 | Hex | 5 | |
| tranhoailinh | Modular Binomials | 80 | |
| llllluguan | XOR Properties | 15 | |
| marco44 | Factoring | 15 | |
| PescaruS | Favourite byte | 20 | |
| phantasm | Bytes and Big Integers | 10 | |
| agentx106 | ASCII | 5 | |
| St3v3 | XOR Starter | 10 | |
| jreall | Salty | 20 | |
| Skypace | Flipping Cookie | 60 | |
| PescaruS | XOR Properties | 15 | |
| agentx106 | Great Snakes | 3 | |
| agentx106 | Finding Flags | 2 | |
| mmayabi | Modular Inverting | 25 | |
| jreall | Manyprime | 40 | |
| Lucas1123 | Quadratic Residues | 25 | |
| frudewor | Quadratic Residues | 25 | |
| KZOrP4Vl | Successive Powers | 60 | |
| marco44 | RSA Signatures | 25 | |
| St3v3 | Bytes and Big Integers | 10 | |
| mmayabi | Modular Arithmetic 2 | 20 | |
| jreall | Monoprime | 30 | |
| frudewor | Modular Inverting | 25 | |
| jreall | Factoring | 15 | |
| SHCyber | Public Keys | 15 | |
| SHCyber | Modular Exponentiation | 10 | |
| newbie2004 | Resisting Bruteforce | 10 | |
| jreall | RSA Signatures | 25 | |
| phantasm | Base64 | 10 | |
| studentunique | Passwords as Keys | 50 | |
| yoavb | Chinese Remainder Theorem | 40 | |
| meroo | XOR Properties | 15 | |
| meroo | XOR Starter | 10 | |
| newbie2004 | Keyed Permutations | 5 | |
| phantasm | Hex | 5 | |
| meroo | Bytes and Big Integers | 10 | |
| mmayabi | Modular Arithmetic 1 | 20 | |
| phantasm | ASCII | 5 | |
| yoavb | Modular Square Root | 35 | |
| phantasm | Great Snakes | 3 | |
| cihiaiiin | Favourite byte | 20 | |
| meroo | Base64 | 10 | |
| SuperBanana31247 | Finding Flags | 2 | |
| Pilgrim5py | Great Snakes | 3 | |
| Tanpa_R | Finding Flags | 2 | |
| namsss | RSA Decryption | 20 | |
| llllluguan | XOR Starter | 10 | |
| namsss | Private Keys | 20 |
You are now level Current level