| Date | User | Challenge | Score |
| onissay | Finding Flags | 2 | |
| serds | You either know, XOR you don't | 30 | |
| Fidwaa | Finding Flags | 2 | |
| wersytt | Legendre Symbol | 35 | |
| themud91 | ASCII | 5 | |
| saleh211 | Great Snakes | 3 | |
| serds | Favourite byte | 20 | |
| saleh211 | Finding Flags | 2 | |
| wassimos1 | You either know, XOR you don't | 30 | |
| johnsmith114 | Common Ground | 75 | |
| themud91 | Great Snakes | 3 | |
| Beethoven3 | Real Eisenstein | 150 | |
| themud91 | Finding Flags | 2 | |
| serds | XOR Properties | 15 | |
| Loupi | ASCII | 5 | |
| Loupi | Great Snakes | 3 | |
| wassimos1 | Favourite byte | 20 | |
| Loupi | Finding Flags | 2 | |
| star_hill_kill_b | RSA Decryption | 20 | |
| star_hill_kill_b | Private Keys | 20 | |
| star_hill_kill_b | Euler's Totient | 20 | |
| PasswordUsr | Finding Flags | 2 | |
| star_hill_kill_b | Public Keys | 15 | |
| star_hill_kill_b | Modular Exponentiation | 10 | |
| w3ty | Favourite byte | 20 | |
| serds | XOR Starter | 10 | |
| Mulama | Modes of Operation Starter | 15 | |
| w3ty | XOR Properties | 15 | |
| ctsctsctsctscts | Base64 | 10 | |
| ctsctsctsctscts | Hex | 5 | |
| serds | Bytes and Big Integers | 10 | |
| ctsctsctsctscts | ASCII | 5 | |
| w3ty | XOR Starter | 10 | |
| ctsctsctsctscts | Great Snakes | 3 | |
| wassimos1 | XOR Properties | 15 | |
| Elineeman | Working with Fields | 10 | |
| w3ty | Bytes and Big Integers | 10 | |
| Yerken | ZKP Introduction | 5 | |
| ctsctsctsctscts | Finding Flags | 2 | |
| w3ty | Base64 | 10 | |
| Yerken | Invariant | 250 | |
| Yerken | Jack's Birthday Confusion | 30 | |
| Yerken | Jack's Birthday Hash | 20 | |
| Yerken | No Difference | 175 | |
| Yerken | PriMeD5 | 100 | |
| bombom | Bean Counter | 60 | |
| Yerken | Mixed Up | 120 | |
| wassimos1 | XOR Starter | 10 | |
| bombom | Symmetry | 50 | |
| w3ty | Hex | 5 |
You are now level Current level