| Date | User | Challenge | Score |
| MoMoMie | Finding Flags | 2 | |
| whoamityek | Resisting Bruteforce | 10 | |
| whoamityek | Keyed Permutations | 5 | |
| PUTELLAS_102 | Bytes and Big Integers | 10 | |
| M0xX | Resisting Bruteforce | 10 | |
| M0xX | Keyed Permutations | 5 | |
| PUTELLAS_102 | Base64 | 10 | |
| Cheeb13 | Base64 | 10 | |
| panconqueso | Bytes and Big Integers | 10 | |
| Cheeb13 | Hex | 5 | |
| PUTELLAS_102 | Hex | 5 | |
| NOUF | Finding Flags | 2 | |
| asfd98123rejk | SSH Keys | 35 | |
| PUTELLAS_102 | ASCII | 5 | |
| PUTELLAS_102 | Great Snakes | 3 | |
| cwh64 | You either know, XOR you don't | 30 | |
| hhtet | Resisting Bruteforce | 10 | |
| asfd98123rejk | CERTainly not | 30 | |
| hhtet | Keyed Permutations | 5 | |
| andreandre | Greatest Common Divisor | 15 | |
| 1tsRyd3r | The Good, The Pad, The Ugly | 100 | |
| JacobLu3141 | Efficient Exchange | 50 | |
| Gravalos | Network Attacks | 5 | |
| TyLion | Moving Problems | 150 | |
| asfd98123rejk | Privacy-Enhanced Mail? | 25 | |
| TyLion | ProSign 3 | 100 | |
| Gravalos | Great Snakes | 3 | |
| TyLion | Curveball | 100 | |
| Gravalos | Finding Flags | 2 | |
| Gravalos | Size and Basis | 15 | |
| JhonGuzman | Modular Exponentiation | 10 | |
| Zaur009 | XOR Properties | 15 | |
| andreandre | You either know, XOR you don't | 30 | |
| JacobLu3141 | Curves and Logs | 40 | |
| JacobLu3141 | Scalar Multiplication | 35 | |
| Ness2626 | Modular Square Root | 35 | |
| JacobLu3141 | Point Addition | 30 | |
| meaganelena | Base64 | 10 | |
| 1tsRyd3r | Pad Thai | 80 | |
| keks0 | Modular Arithmetic 1 | 20 | |
| Zaur009 | XOR Starter | 10 | |
| meaganelena | Hex | 5 | |
| keks0 | Extended GCD | 20 | |
| SuPeRPi9 | Modular Arithmetic 1 | 20 | |
| meaganelena | ASCII | 5 | |
| keks0 | Greatest Common Divisor | 15 | |
| SuPeRPi9 | Extended GCD | 20 | |
| ellie_m | Greatest Common Divisor | 15 | |
| l3th4l | Too Many Errors | 100 | |
| KingOfRlyeh | Greatest Common Divisor | 15 |
You are now level Current level