| Date | User | Challenge | Score |
| lu30 | XOR Properties | 15 | |
| jinx007 | XOR Properties | 15 | |
| mdplivinay | Great Snakes | 3 | |
| cosminm53 | Curves and Logs | 40 | |
| mdplivinay | Finding Flags | 2 | |
| BrandonMon | XOR Properties | 15 | |
| openground | Diffusion through Permutation | 30 | |
| TheMarcsOv | Chinese Remainder Theorem | 40 | |
| alex_1337 | Common Ground | 75 | |
| demr | Common Ground | 75 | |
| NotEshurix | Hex | 5 | |
| openground | Confusion through Substitution | 25 | |
| lu30 | XOR Starter | 10 | |
| openground | Round Keys | 20 | |
| Khola | Extended GCD | 20 | |
| openground | Structure of AES | 15 | |
| Khola | Greatest Common Divisor | 15 | |
| gui_tupinamba | Great Snakes | 3 | |
| gui_tupinamba | Finding Flags | 2 | |
| redcrayola | Quadratic Residues | 25 | |
| HectorDiabolicul | Point Addition | 30 | |
| Khola | You either know, XOR you don't | 30 | |
| BrandonMon | XOR Starter | 10 | |
| openground | Resisting Bruteforce | 10 | |
| openground | Keyed Permutations | 5 | |
| openground | You either know, XOR you don't | 30 | |
| osihlovec | Seventy-Two | 50 | |
| NotEshurix | ASCII | 5 | |
| openground | Favourite byte | 20 | |
| openground | XOR Properties | 15 | |
| openground | XOR Starter | 10 | |
| openground | Bytes and Big Integers | 10 | |
| miguelemos | Jack's Birthday Confusion | 30 | |
| lu30 | Bytes and Big Integers | 10 | |
| Srn_01 | XOR Properties | 15 | |
| astolica | Euler's Totient | 20 | |
| redcrayola | Modular Inverting | 25 | |
| HectorDiabolicul | Point Negation | 10 | |
| miguelemos | Jack's Birthday Hash | 20 | |
| v1ct1g3r | Modular Square Root | 35 | |
| redcrayola | Modular Arithmetic 2 | 20 | |
| lu30 | Base64 | 10 | |
| carte | Great Snakes | 3 | |
| NotEshurix | Great Snakes | 3 | |
| rubayede | Finding Flags | 2 | |
| acorrege | Flipping Cookie | 60 | |
| lu30 | Hex | 5 | |
| astolica | Public Keys | 15 | |
| Srn_01 | XOR Starter | 10 | |
| openground | Base64 | 10 |
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