| Date | User | Challenge | Score |
| Temporarykiwi | Finding Flags | 2 | |
| solidus | No Way Back Home | 100 | |
| lwk | Finding Flags | 2 | |
| zhangjia2004 | You either know, XOR you don't | 30 | |
| solidus | ZKP Introduction | 5 | |
| rose123 | Base64 | 10 | |
| jackoha | Hamiltonicity 1 | 100 | |
| jackoha | Hamiltonicity (CryptoHack) | 0 | |
| x245028 | XOR Properties | 15 | |
| s111 | ASCII | 5 | |
| wanyi11 | ASCII | 5 | |
| liu19133966533 | Bytes and Big Integers | 10 | |
| tongsurun9546 | Base64 | 10 | |
| wang123456 | Base64 | 10 | |
| liuchunyan | Favourite byte | 20 | |
| zhangjia2004 | Favourite byte | 20 | |
| yy123 | Base64 | 10 | |
| user467985982 | ECB Oracle | 60 | |
| shaw1999 | Base64 | 10 | |
| aaambq | Base64 | 10 | |
| wangyinuo | Base64 | 10 | |
| AZU2005 | Base64 | 10 | |
| yly330 | Base64 | 10 | |
| wanyi11 | Great Snakes | 3 | |
| xiangcai | Base64 | 10 | |
| sean111 | Base64 | 10 | |
| wjq | Favourite byte | 20 | |
| zxklwq | Base64 | 10 | |
| numberFreak | Saying Hello | 20 | |
| rose123 | Resisting Bruteforce | 10 | |
| 1433223 | Favourite byte | 20 | |
| sumay | Finding Flags | 2 | |
| woof123 | Base64 | 10 | |
| Pwner7 | Chinese Remainder Theorem | 40 | |
| btd123 | Base64 | 10 | |
| baijingshu | Base64 | 10 | |
| tongsurun9546 | Hex | 5 | |
| solidus | No Leaks | 100 | |
| qrq1234 | Base64 | 10 | |
| x245028 | XOR Starter | 10 | |
| btd123 | Hex | 5 | |
| hph123456 | Base64 | 10 | |
| x245028 | Bytes and Big Integers | 10 | |
| phj123456 | Hex | 5 | |
| rose123 | Keyed Permutations | 5 | |
| shaw1999 | Hex | 5 | |
| tongsurun9546 | ASCII | 5 | |
| hph123456 | ASCII | 5 | |
| liu19133966533 | Base64 | 10 | |
| Pwner7 | Modular Square Root | 35 |
You are now level Current level