| Date | User | Challenge | Score |
| kemika | Modular Arithmetic 1 | 20 | |
| Strokkurgaming | Extended GCD | 20 | |
| feynhat | Favourite byte | 20 | |
| tahoora101 | Great Snakes | 3 | |
| purpleColibri | Modular Arithmetic 2 | 20 | |
| Wequra | Great Snakes | 3 | |
| CryptoTech26 | Great Snakes | 3 | |
| l3th4l | What's a Lattice? | 40 | |
| x0Ph139 | Network Attacks | 5 | |
| notpai | Hex | 5 | |
| Wequra | Finding Flags | 2 | |
| h_u84fd | Hex | 5 | |
| purpleColibri | Modular Arithmetic 1 | 20 | |
| CryptoTech26 | Finding Flags | 2 | |
| vim_diesel | Modular Arithmetic 1 | 20 | |
| niksor | You either know, XOR you don't | 30 | |
| niksor | Favourite byte | 20 | |
| niksor | XOR Properties | 15 | |
| niksor | XOR Starter | 10 | |
| niksor | Bytes and Big Integers | 10 | |
| notpai | ASCII | 5 | |
| niksor | Base64 | 10 | |
| Whitney | Bean Counter | 60 | |
| __Username | Modular Arithmetic 2 | 20 | |
| l3th4l | Gram Schmidt | 30 | |
| feynhat | XOR Properties | 15 | |
| purpleColibri | Extended GCD | 20 | |
| notpai | Network Attacks | 5 | |
| niksor | Hex | 5 | |
| vim_diesel | Extended GCD | 20 | |
| NioZow | Let's Decrypt | 80 | |
| Spider1Sec | Hamiltonicity (CryptoHack) | 0 | |
| niksor | ASCII | 5 | |
| niksor | Great Snakes | 3 | |
| niksor | Finding Flags | 2 | |
| x0Ph139 | You either know, XOR you don't | 30 | |
| notpai | Great Snakes | 3 | |
| ahmed_1ACR | Legendre Symbol | 35 | |
| notpai | Finding Flags | 2 | |
| pezdokril | Modular Arithmetic 1 | 20 | |
| feynhat | XOR Starter | 10 | |
| Whitney | Symmetry | 50 | |
| keith_oruo | Bean Counter | 60 | |
| h_u84fd | ASCII | 5 | |
| keith_oruo | Symmetry | 50 | |
| Whitney | Flipping Cookie | 60 | |
| kemika | Extended GCD | 20 | |
| h_u84fd | Great Snakes | 3 | |
| Whitney | ECB CBC WTF | 55 | |
| keith_oruo | Flipping Cookie | 60 |
You are now level Current level