| Date | User | Challenge | Score |
| bashrc | Modular Binomials | 80 | |
| bashrc | Adrien's Signs | 80 | |
| bashrc | Chinese Remainder Theorem | 40 | |
| Duckart | Crossed Wires | 100 | |
| bashrc | Modular Square Root | 35 | |
| bashrc | Legendre Symbol | 35 | |
| zayzay681 | Finding Flags | 2 | |
| bashrc | Quadratic Residues | 25 | |
| bashrc | Modular Inverting | 25 | |
| bashrc | Modular Arithmetic 2 | 20 | |
| crou | Jack's Birthday Hash | 20 | |
| bashrc | Modular Arithmetic 1 | 20 | |
| bashrc | Extended GCD | 20 | |
| bashrc | Greatest Common Divisor | 15 | |
| bashrc | You either know, XOR you don't | 30 | |
| bashrc | Favourite byte | 20 | |
| bashrc | XOR Properties | 15 | |
| bashrc | XOR Starter | 10 | |
| bashrc | Bytes and Big Integers | 10 | |
| bashrc | Base64 | 10 | |
| bashrc | Hex | 5 | |
| bashrc | ASCII | 5 | |
| bashrc | Great Snakes | 3 | |
| crou | Finding Flags | 2 | |
| bashrc | Finding Flags | 2 | |
| MF47 | Base64 | 10 | |
| ash3rly | Greatest Common Divisor | 15 | |
| KK1994 | Greatest Common Divisor | 15 | |
| CosminB24 | Resisting Bruteforce | 10 | |
| CosminB24 | Keyed Permutations | 5 | |
| CosminB24 | Modular Binomials | 80 | |
| CosminB24 | Adrien's Signs | 80 | |
| GhostDz78 | Bytes and Big Integers | 10 | |
| O_RT | ASCII | 5 | |
| conor13rp | Manyprime | 40 | |
| GhostDz78 | Base64 | 10 | |
| kkaroly | Confusion through Substitution | 25 | |
| conor13rp | Square Eyes | 35 | |
| MF47 | Hex | 5 | |
| conor13rp | Monoprime | 30 | |
| _murp__ | Modular Inverting | 25 | |
| O_RT | Great Snakes | 3 | |
| kkaroly | Round Keys | 20 | |
| O_RT | Finding Flags | 2 | |
| conor13rp | Inferius Prime | 30 | |
| KindFoxie23 | Greatest Common Divisor | 15 | |
| duxy | Greatest Common Divisor | 15 | |
| Cryp7void | Finding Flags | 2 | |
| kkaroly | Structure of AES | 15 | |
| Hidanchik | You either know, XOR you don't | 30 |
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