| Date | User | Challenge | Score |
| Nook64 | Modular Binomials | 80 | |
| Dwiki | Network Attacks | 5 | |
| _emmakaranja | Greatest Common Divisor | 15 | |
| VAWN2303 | Modular Arithmetic 1 | 20 | |
| VAWN2303 | Extended GCD | 20 | |
| 168889_Maxwell | Modular Arithmetic 2 | 20 | |
| PriyanshuPansari | Great Snakes | 3 | |
| Omonjon36 | Base64 | 10 | |
| PriyanshuPansari | Finding Flags | 2 | |
| Omonjon36 | Hex | 5 | |
| skiller3478 | Gram Schmidt | 30 | |
| sulha | Sharks on the Wire | 10 | |
| Aguero20 | Quadratic Residues | 25 | |
| Aguero20 | Modular Inverting | 25 | |
| replicateqw | Modular Binomials | 80 | |
| Aguero20 | Modular Arithmetic 2 | 20 | |
| Aguero20 | Modular Arithmetic 1 | 20 | |
| Aguero20 | Extended GCD | 20 | |
| OhLEE | Modular Arithmetic 2 | 20 | |
| 168889_Maxwell | Modular Arithmetic 1 | 20 | |
| zzae | Generators of Groups | 20 | |
| replicateqw | Adrien's Signs | 80 | |
| Aguero20 | Greatest Common Divisor | 15 | |
| 168889_Maxwell | Extended GCD | 20 | |
| 168889_Maxwell | Greatest Common Divisor | 15 | |
| TallerGiraffe | Diffusion through Permutation | 30 | |
| replicateqw | Chinese Remainder Theorem | 40 | |
| replicateqw | Modular Square Root | 35 | |
| chrischako | Extended GCD | 20 | |
| replicateqw | Legendre Symbol | 35 | |
| Omonjon36 | ASCII | 5 | |
| guli | Bytes and Big Integers | 10 | |
| replicateqw | Quadratic Residues | 25 | |
| Omonjon36 | Great Snakes | 3 | |
| replicateqw | Modular Inverting | 25 | |
| blippity | Base64 | 10 | |
| replicateqw | Modular Arithmetic 2 | 20 | |
| Omonjon36 | Finding Flags | 2 | |
| guli | You either know, XOR you don't | 30 | |
| replicateqw | Modular Arithmetic 1 | 20 | |
| guli | Favourite byte | 20 | |
| replicateqw | Extended GCD | 20 | |
| guli | XOR Properties | 15 | |
| guli | XOR Starter | 10 | |
| replicateqw | Greatest Common Divisor | 15 | |
| idoHerojn | Chinese Remainder Theorem | 40 | |
| vas_fountas | Secure Protocols | 5 | |
| blippity | Hex | 5 | |
| guli | Hex | 5 | |
| guli | ASCII | 5 |
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