| Date | User | Challenge | Score |
| DjokoHaryo | Base64 | 10 | |
| espresso | Favourite byte | 20 | |
| YEQX67 | Computing Public Values | 25 | |
| CpPy | Base64 | 10 | |
| deathknight | Export-grade | 100 | |
| deathknight | Invariant | 250 | |
| nobody12345 | Great Snakes | 3 | |
| dwaeji | Script Kiddie | 70 | |
| ralinguant | Favourite byte | 20 | |
| satlong00 | Checkpoint | 150 | |
| Kicks299 | Modular Arithmetic 2 | 20 | |
| Adeka228 | Endless Emails | 150 | |
| deathknight | RSA Backdoor Viability | 175 | |
| ABDELHAK95 | Great Snakes | 3 | |
| YEQX67 | Generators of Groups | 20 | |
| CpPy | Hex | 5 | |
| EveN | ASCII | 5 | |
| deathknight | WOTS Up 2 | 90 | |
| CpPy | ASCII | 5 | |
| ralinguant | XOR Properties | 15 | |
| espresso | XOR Properties | 15 | |
| Adeka228 | Everything is Still Big | 100 | |
| Noano2015 | Additive | 70 | |
| martonpe | Modular Square Root | 35 | |
| creepyeun | ASCII | 5 | |
| toto123456 | Token Appreciation | 5 | |
| CpPy | Great Snakes | 3 | |
| espresso | XOR Starter | 10 | |
| L64 | Pairing-Based Cryptography | 50 | |
| CpPy | Finding Flags | 2 | |
| nobody12345 | Finding Flags | 2 | |
| YEQX67 | Working with Fields | 10 | |
| r34770c | Modular Square Root | 35 | |
| Adeka228 | Crossed Wires | 100 | |
| creepyeun | Great Snakes | 3 | |
| SJacovettiJr | Quadratic Residues | 25 | |
| creepyeun | Finding Flags | 2 | |
| Retro000 | XOR Starter | 10 | |
| BonziSki | Great Snakes | 3 | |
| Adeka228 | Everything is Big | 70 | |
| Noano2015 | Static Client | 100 | |
| martonpe | Legendre Symbol | 35 | |
| cryptokiwi | Greatest Common Divisor | 15 | |
| Adeka228 | Modulus Inutilis | 50 | |
| Pokpo | XOR Starter | 10 | |
| satlong00 | A Twisted Mind | 80 | |
| Kaiser7 | XOR Starter | 10 | |
| Kaiser7 | Bytes and Big Integers | 10 | |
| SUPERSUNN | Gram Schmidt | 30 | |
| Sanyokva | You either know, XOR you don't | 30 |
You are now level Current level