| Date | User | Challenge | Score |
| ra_mn | Successive Powers | 60 | |
| jhonatan123 | ECB CBC WTF | 55 | |
| HumanTorch004 | XOR Starter | 10 | |
| abner_aq | XOR Starter | 10 | |
| jhonatan123 | ECB Oracle | 60 | |
| viniciusaguiar | Great Snakes | 3 | |
| Oglegoman | Factoring | 15 | |
| Grupo04MatAplic | Modular Arithmetic 2 | 20 | |
| viniciusaguiar | Finding Flags | 2 | |
| joao_nogueira | Background Reading | 5 | |
| Oglegoman | RSA Signatures | 25 | |
| lakshmis3126 | Finding Flags | 2 | |
| nirvanaK456 | Everything is Big | 70 | |
| hedge_hedgehog | Modulus Inutilis | 50 | |
| SofiiaLevi | Bytes and Big Integers | 10 | |
| mins106 | Favourite byte | 20 | |
| HumanTorch004 | Bytes and Big Integers | 10 | |
| kaisu980 | Modular Arithmetic 2 | 20 | |
| SofiiaLevi | Base64 | 10 | |
| Grupo04MatAplic | SSH Keys | 35 | |
| KrunkerIO | Great Snakes | 3 | |
| KrunkerIO | Finding Flags | 2 | |
| Marco89 | Computing Shared Secrets | 30 | |
| abner_aq | Encoding Challenge | 40 | |
| Oglegoman | RSA Decryption | 20 | |
| SofiiaLevi | Hex | 5 | |
| Salvador1226 | Finding Flags | 2 | |
| Kevin_Lobo | ASCII | 5 | |
| heatswole | Chinese Remainder Theorem | 40 | |
| SofiiaLevi | ASCII | 5 | |
| Marco89 | Computing Public Values | 25 | |
| SofiiaLevi | Great Snakes | 3 | |
| doomfiva9 | Finding Flags | 2 | |
| safiiiyr | Great Snakes | 3 | |
| Grupo04MatAplic | CERTainly not | 30 | |
| heatswole | Modular Square Root | 35 | |
| safiiiyr | Finding Flags | 2 | |
| st3pan | ASCII | 5 | |
| abner_aq | Bytes and Big Integers | 10 | |
| Lilacu | Great Snakes | 3 | |
| SofiiaLevi | Finding Flags | 2 | |
| st3pan | Great Snakes | 3 | |
| Lilacu | Finding Flags | 2 | |
| Grupo04MatAplic | Lemur XOR | 40 | |
| Kevin_Lobo | Great Snakes | 3 | |
| Kevin_Lobo | Finding Flags | 2 | |
| st3pan | Finding Flags | 2 | |
| Jazzy_1212 | Finding Flags | 2 | |
| nirvanaK456 | Square Eyes | 35 | |
| Stefanie42 | Lemur XOR | 40 |
You are now level Current level