| Date | User | Challenge | Score |
| hpeekaboo | Great Snakes | 3 | |
| geo_gkez | Public Keys | 15 | |
| Bettacchi | Hex | 5 | |
| Bettacchi | ASCII | 5 | |
| hpeekaboo | Finding Flags | 2 | |
| geo_gkez | Modular Exponentiation | 10 | |
| moralith | Finding Flags | 2 | |
| Bettacchi | Network Attacks | 5 | |
| nsdcode | Adrien's Signs | 80 | |
| noura | No Leaks | 100 | |
| Maizar | Bespoke Padding | 100 | |
| noura | Gotta Go Fast | 40 | |
| Bettacchi | Great Snakes | 3 | |
| Bettacchi | Finding Flags | 2 | |
| abraxii | XOR Starter | 10 | |
| vsetti | Modular Arithmetic 2 | 20 | |
| Maizar | RSA Backdoor Viability | 175 | |
| aquatic_ulam | Stream of Consciousness | 80 | |
| Maizar | Ron was Wrong, Whit is Right | 90 | |
| noura | Collider | 50 | |
| Maizar | Fast Primes | 75 | |
| MisterOnions | Curveball | 100 | |
| Maizar | Marin's Secrets | 50 | |
| PatrickL_SC | Passwords as Keys | 50 | |
| Maizar | Infinite Descent | 50 | |
| Maizar | Endless Emails | 150 | |
| vsetti | Modular Arithmetic 1 | 20 | |
| Maizar | Everything is Still Big | 100 | |
| vsetti | Extended GCD | 20 | |
| Maizar | Crossed Wires | 100 | |
| Panos_Livadaros | Missing Modulus | 80 | |
| Panos_Livadaros | Nativity | 60 | |
| Panos_Livadaros | Noise Free | 40 | |
| avidlearner65 | Finding Flags | 2 | |
| fonya | Background Reading | 5 | |
| Harachili | Bruce Schneier's Password: Part 2 | 250 | |
| ArcticWolf | You either know, XOR you don't | 30 | |
| ArcticWolf | Favourite byte | 20 | |
| ArcticWolf | XOR Properties | 15 | |
| yeachat | Resisting Bruteforce | 10 | |
| ArcticWolf | XOR Starter | 10 | |
| abraxii | Bytes and Big Integers | 10 | |
| yeachat | Keyed Permutations | 5 | |
| ArcticWolf | Bytes and Big Integers | 10 | |
| safiyyashaikh03 | ASCII | 5 | |
| tomaspetras | Modulus Inutilis | 50 | |
| 0M4R | ECB Oracle | 60 | |
| safiyyashaikh03 | Great Snakes | 3 | |
| PatrickL_SC | Modes of Operation Starter | 15 | |
| Artur6725 | Pad Thai | 80 |
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