| Date | User | Challenge | Score |
| Seventt | Stream of Consciousness | 80 | |
| Mansyr1337 | Modular Inverting | 25 | |
| Omniwhale | Network Attacks | 5 | |
| bncybz | XOR Starter | 10 | |
| rorkh | Great Snakes | 3 | |
| rorkh | Finding Flags | 2 | |
| Mansyr1337 | Modular Arithmetic 2 | 20 | |
| ipe22 | You either know, XOR you don't | 30 | |
| Mansyr1337 | Modular Arithmetic 1 | 20 | |
| Mansyr1337 | Extended GCD | 20 | |
| ja6ad | Bytes and Big Integers | 10 | |
| Mansyr1337 | Greatest Common Divisor | 15 | |
| Mansyr1337 | Lemur XOR | 40 | |
| nk0 | Oracular Spectacular | 150 | |
| 8l4nk | Fischlin Transform | 180 | |
| 8l4nk | Fischlin's Transformation (CryptoHack) | 0 | |
| cahidenes | WOTS Up 2 | 90 | |
| Elliot_Anderson | You either know, XOR you don't | 30 | |
| tamarass | Modular Inverting | 25 | |
| Omniwhale | Great Snakes | 3 | |
| ipe22 | Favourite byte | 20 | |
| michkied | PriMeD5 | 100 | |
| rama2130 | Computing Shared Secrets | 30 | |
| Omniwhale | Finding Flags | 2 | |
| Mansyr1337 | You either know, XOR you don't | 30 | |
| ipe22 | XOR Properties | 15 | |
| Mansyr1337 | Encoding Challenge | 40 | |
| AuroNox29 | Great Snakes | 3 | |
| Googo | Inferius Prime | 30 | |
| qslg | Composite Isogenies | 60 | |
| qslg | Three Isogenies | 35 | |
| AuroNox29 | Finding Flags | 2 | |
| qslg | Two Isogenies | 30 | |
| Elliot_Anderson | Favourite byte | 20 | |
| LashaG | Public Keys | 15 | |
| Vasileios01 | Round Keys | 20 | |
| tamarass | Modular Arithmetic 2 | 20 | |
| Vasileios01 | Structure of AES | 15 | |
| Googo | Square Eyes | 35 | |
| Vasileios01 | Resisting Bruteforce | 10 | |
| LashaG | Modular Exponentiation | 10 | |
| Vasileios01 | Keyed Permutations | 5 | |
| CTFSlayer | Keyed Permutations | 5 | |
| engman | Transparency | 50 | |
| sveta_shumovai | Broken RSA | 100 | |
| Vasileios01 | Greatest Common Divisor | 15 | |
| muto98 | Modular Square Root | 35 | |
| tamarass | Modular Arithmetic 1 | 20 | |
| Vasileios01 | JSON in JSON | 40 | |
| Vasileios01 | JWT Secrets | 25 |
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