| Date | User | Challenge | Score |
| tiplouf37 | Structure of AES | 15 | |
| tiplouf37 | Resisting Bruteforce | 10 | |
| SilentRoot | Hex | 5 | |
| tiplouf37 | Keyed Permutations | 5 | |
| Luki | Extended GCD | 20 | |
| KMuJu | Modular Arithmetic 1 | 20 | |
| ThiThibz | Diffusion through Permutation | 30 | |
| kuso21 | Infinite Descent | 50 | |
| KMuJu | Extended GCD | 20 | |
| SilentRoot | ASCII | 5 | |
| Luki | Greatest Common Divisor | 15 | |
| SilentRoot | Great Snakes | 3 | |
| Luki | Network Attacks | 5 | |
| yousseftr03 | Hex | 5 | |
| SilentRoot | Finding Flags | 2 | |
| exxeway | Montgomery's Ladder | 40 | |
| Serge_Salcedo | Euler's Totient | 20 | |
| benshencool | Base64 | 10 | |
| yousseftr03 | ASCII | 5 | |
| Serge_Salcedo | Public Keys | 15 | |
| Luki | You either know, XOR you don't | 30 | |
| namdang | Additive | 70 | |
| Arnav_Thakare | Quadratic Residues | 25 | |
| Serge_Salcedo | Modular Exponentiation | 10 | |
| KMuJu | Greatest Common Divisor | 15 | |
| Kriz | Gaussian Reduction | 50 | |
| Arnav_Thakare | Modular Inverting | 25 | |
| benshencool | Hex | 5 | |
| Arnav_Thakare | Modular Arithmetic 2 | 20 | |
| Arnav_Thakare | Modular Arithmetic 1 | 20 | |
| Arnav_Thakare | Extended GCD | 20 | |
| Arnav_Thakare | Greatest Common Divisor | 15 | |
| jotaghz | Megalomaniac 2 | 120 | |
| KMuJu | Lemur XOR | 40 | |
| M4DD0C74 | Smooth Criminal | 60 | |
| Serge_Salcedo | Modular Inverting | 25 | |
| Arnav_Thakare | You either know, XOR you don't | 30 | |
| JustHere77 | Great Snakes | 3 | |
| Serge_Salcedo | Modular Arithmetic 2 | 20 | |
| ubercustomer1337 | ECB Oracle | 60 | |
| JustHere77 | Finding Flags | 2 | |
| Serge_Salcedo | Modular Arithmetic 1 | 20 | |
| Luki | Favourite byte | 20 | |
| benshencool | ASCII | 5 | |
| jotaghz | Megalomaniac 1 | 100 | |
| Tsoon | ASCII | 5 | |
| 0M4R | Bean Counter | 60 | |
| Arnav_Thakare | Favourite byte | 20 | |
| Luki | XOR Properties | 15 | |
| Arnav_Thakare | XOR Properties | 15 |
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