| Date | User | Challenge | Score |
| cryptomidi | Finding Flags | 2 | |
| Myronarty_ | Bringing It All Together | 50 | |
| shaked_srabstein | Background Reading | 5 | |
| MrOblivion | Hex | 5 | |
| g3k1 | Marin's Secrets | 50 | |
| MrOblivion | ASCII | 5 | |
| MrOblivion | Network Attacks | 5 | |
| Yousef545 | You either know, XOR you don't | 30 | |
| Yousef545 | Favourite byte | 20 | |
| Yousef545 | XOR Properties | 15 | |
| oneor | You either know, XOR you don't | 30 | |
| lucy54 | Script Kiddie | 70 | |
| oneor | Favourite byte | 20 | |
| Yousef545 | XOR Starter | 10 | |
| galchapman | Real Eisenstein | 150 | |
| MrOblivion | Great Snakes | 3 | |
| oneor | XOR Properties | 15 | |
| Yousef545 | Bytes and Big Integers | 10 | |
| oneor | XOR Starter | 10 | |
| oneor | Bytes and Big Integers | 10 | |
| oneor | Base64 | 10 | |
| Yousef545 | Base64 | 10 | |
| tauhid123 | Hex | 5 | |
| oneor | Hex | 5 | |
| oneor | ASCII | 5 | |
| oneor | Great Snakes | 3 | |
| whoishe_whoami | Favourite byte | 20 | |
| vcvttsd2si | Fischlin Transform | 180 | |
| tauhid123 | ASCII | 5 | |
| oneor | Finding Flags | 2 | |
| kyalo | You either know, XOR you don't | 30 | |
| Yousef545 | Hex | 5 | |
| Yousef545 | ASCII | 5 | |
| lucy54 | Hash Stuffing | 50 | |
| Yousef545 | Great Snakes | 3 | |
| tauhid123 | Great Snakes | 3 | |
| kashifali090 | Finding Flags | 2 | |
| foldedmoon | Network Attacks | 5 | |
| bcd | Modular Arithmetic 1 | 20 | |
| Yousef545 | Finding Flags | 2 | |
| foldedmoon | Great Snakes | 3 | |
| abhinavM | Factoring | 15 | |
| abhinavM | RSA Signatures | 25 | |
| bcd | Extended GCD | 20 | |
| XavierS | Greatest Common Divisor | 15 | |
| Lex_slw | Base64 | 10 | |
| lucy54 | Collider | 50 | |
| Muriungife | Round Keys | 20 | |
| abhinavM | RSA Decryption | 20 | |
| DevinDaboi31415 | Resisting Bruteforce | 10 |
You are now level Current level