| Date | User | Challenge | Score |
| numonov700 | Bytes and Big Integers | 10 | |
| mochaowo | Confusion through Substitution | 25 | |
| sfsdfcvsdfc | XOR Starter | 10 | |
| mubina | Extended GCD | 20 | |
| jinseo | Modulus Inutilis | 50 | |
| sfsdfcvsdfc | Bytes and Big Integers | 10 | |
| lemonctf | Bytes and Big Integers | 10 | |
| mubina | Greatest Common Divisor | 15 | |
| numonov700 | Base64 | 10 | |
| mubina | You either know, XOR you don't | 30 | |
| adibaxon_2 | Hex | 5 | |
| mubina | Favourite byte | 20 | |
| sfsdfcvsdfc | Base64 | 10 | |
| adibaxon_2 | ASCII | 5 | |
| Shukhrat | XOR Properties | 15 | |
| lemonctf | Base64 | 10 | |
| samandar | You either know, XOR you don't | 30 | |
| adibaxon_2 | Great Snakes | 3 | |
| mubina | XOR Properties | 15 | |
| sfsdfcvsdfc | Hex | 5 | |
| sfsdfcvsdfc | ASCII | 5 | |
| lemonctf | Hex | 5 | |
| mubina | XOR Starter | 10 | |
| sfsdfcvsdfc | Great Snakes | 3 | |
| mubina | Bytes and Big Integers | 10 | |
| UMAyuma | Modular Inverting | 25 | |
| Shukhrat | XOR Starter | 10 | |
| adibaxon_2 | Finding Flags | 2 | |
| sfsdfcvsdfc | Finding Flags | 2 | |
| Mohlaroy | You either know, XOR you don't | 30 | |
| Vinjr | Too Honest | 50 | |
| Shukhrat | Bytes and Big Integers | 10 | |
| lemonctf | ASCII | 5 | |
| 07734willy | Smooth Criminal | 60 | |
| kiuf | Chinese Remainder Theorem | 40 | |
| kiuf | Modular Square Root | 35 | |
| Shukhrat | Base64 | 10 | |
| lemonctf | Great Snakes | 3 | |
| mochaowo | Round Keys | 20 | |
| samandar | Favourite byte | 20 | |
| samandar | XOR Properties | 15 | |
| ducanhhecker | ASCII | 5 | |
| lemonctf | Finding Flags | 2 | |
| kiuf | Legendre Symbol | 35 | |
| samandar | XOR Starter | 10 | |
| samandar | Bytes and Big Integers | 10 | |
| salmonedibergen | Favourite byte | 20 | |
| Mohlaroy | Favourite byte | 20 | |
| cavazinf | Curveball | 100 | |
| diyoooor | You either know, XOR you don't | 30 |
You are now level Current level