| Date | User | Challenge | Score |
| LinhTH | Extended GCD | 20 | |
| Tebidel | You either know, XOR you don't | 30 | |
| Kane | Great Snakes | 3 | |
| lavnia | Hex | 5 | |
| Sydney3 | Hex | 5 | |
| LinhTH | Greatest Common Divisor | 15 | |
| opsora | You either know, XOR you don't | 30 | |
| galchapman | Noise Free | 40 | |
| opsora | Favourite byte | 20 | |
| opsora | XOR Properties | 15 | |
| LinhTH | You either know, XOR you don't | 30 | |
| opsora | XOR Starter | 10 | |
| ritu | XOR Starter | 10 | |
| snickerdoodle11 | XOR Starter | 10 | |
| Kane | Finding Flags | 2 | |
| afmoroz | Confusion through Substitution | 25 | |
| LinhTH | Favourite byte | 20 | |
| ayhaM145 | Finding Flags | 2 | |
| abdullahsayeed | Base64 | 10 | |
| arsh0 | RSA Decryption | 20 | |
| spholo | Symmetry | 50 | |
| Sydney3 | ASCII | 5 | |
| ngynmq | Size and Basis | 15 | |
| A2RU | Meet me in the Claw | 120 | |
| arsh0 | Private Keys | 20 | |
| ngynmq | Vectors | 10 | |
| LinhTH | XOR Properties | 15 | |
| Sydney3 | Great Snakes | 3 | |
| lavnia | ASCII | 5 | |
| arsh0 | Euler's Totient | 20 | |
| Sydney3 | Finding Flags | 2 | |
| sreekanthankn | XOR Starter | 10 | |
| Akpa2306 | Modular Inverting | 25 | |
| arsh0 | Public Keys | 15 | |
| lavnia | Great Snakes | 3 | |
| nin3 | Privacy-Enhanced Mail? | 25 | |
| arsh0 | Modular Exponentiation | 10 | |
| Reck_1 | ASCII | 5 | |
| rL0st | ZKP Introduction | 5 | |
| rumy | Finding Flags | 2 | |
| davidhbookclub | Additive | 70 | |
| Reck_1 | Great Snakes | 3 | |
| Reck_1 | Finding Flags | 2 | |
| wanttobethebest | LWE Intro | 10 | |
| anass_abouzi | Twin Keys | 100 | |
| davidhbookclub | Static Client 2 | 120 | |
| propyrant | Base64 | 10 | |
| Madeiane | Hex | 5 | |
| propyrant | Hex | 5 | |
| SiSaSo | Hex | 5 |
You are now level Current level