| Date | User | Challenge | Score |
| attycus | Finding Flags | 2 | |
| UMAyuma | Monoprime | 30 | |
| determinant | Favourite byte | 20 | |
| Hexerei | Resisting Bruteforce | 10 | |
| sixsquareAI | Lo-Hi Card Game | 120 | |
| Aghni24 | Base64 | 10 | |
| determinant | XOR Properties | 15 | |
| Aghni24 | Hex | 5 | |
| Sr99 | Symmetry | 50 | |
| nous | PriMeD5 | 100 | |
| Sr99 | Lazy CBC | 60 | |
| Sr99 | Flipping Cookie | 60 | |
| Sr99 | ECB Oracle | 60 | |
| Sr99 | ECB CBC WTF | 55 | |
| Linyx | Favourite byte | 20 | |
| nihilgeist | Base64 | 10 | |
| nous | Point Negation | 10 | |
| platinumxy | Dancing Queen | 120 | |
| nihilgeist | Hex | 5 | |
| nihilgeist | You either know, XOR you don't | 30 | |
| tfabjan | Point Addition | 30 | |
| nihilgeist | Favourite byte | 20 | |
| nihilgeist | XOR Properties | 15 | |
| tfabjan | Point Negation | 10 | |
| nihilgeist | XOR Starter | 10 | |
| Toadytop | Forbidden Fruit | 150 | |
| Z3U55 | Real Eisenstein | 150 | |
| nous | Point Addition | 30 | |
| minshay | Computing Public Values | 25 | |
| Linyx | XOR Properties | 15 | |
| JackClassic | ASCII | 5 | |
| tfabjan | Background Reading | 5 | |
| nous | Pairing-Based Cryptography | 50 | |
| tfabjan | RSA Decryption | 20 | |
| sixsquareAI | No Leaks | 100 | |
| 3ouzal | Hex | 5 | |
| Linyx | XOR Starter | 10 | |
| tfabjan | Private Keys | 20 | |
| 3ouzal | ASCII | 5 | |
| 3ouzal | Great Snakes | 3 | |
| Z3U55 | Ellipse Curve Cryptography | 125 | |
| rebornonmonday | Finding Flags | 2 | |
| Z3U55 | Dancing Queen | 120 | |
| 3ouzal | Finding Flags | 2 | |
| tfabjan | Euler's Totient | 20 | |
| JackClassic | Great Snakes | 3 | |
| sixsquareAI | Gotta Go Fast | 40 | |
| jayvee13 | Favourite byte | 20 | |
| viharthota | Finding Flags | 2 | |
| JackClassic | Finding Flags | 2 |
You are now level Current level