| Date | User | Challenge | Score |
| niksor | Modular Inverting | 25 | |
| shorouqmou | Base64 | 10 | |
| yr81 | Noise Free | 40 | |
| ogne | Working with Fields | 10 | |
| niksor | Modular Arithmetic 2 | 20 | |
| niksor | Modular Arithmetic 1 | 20 | |
| niksor | Extended GCD | 20 | |
| niksor | Greatest Common Divisor | 15 | |
| mkermaou | XOR Starter | 10 | |
| shorouqmou | Hex | 5 | |
| h_u84fd | Base64 | 10 | |
| Strokkurgaming | Modular Arithmetic 2 | 20 | |
| karl0408 | Greatest Common Divisor | 15 | |
| shorouqmou | ASCII | 5 | |
| ippo717273 | Modular Arithmetic 1 | 20 | |
| Heba_Ajjour | Transparency | 50 | |
| Strokkurgaming | Modular Arithmetic 1 | 20 | |
| 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 |
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