| Date | User | Challenge | Score |
| salmansayad78_7 | Generators of Groups | 20 | |
| salmansayad78_7 | Working with Fields | 10 | |
| aHack | ASCII | 5 | |
| salmansayad78_7 | Modulus Inutilis | 50 | |
| lainishere | Hex | 5 | |
| aHack | Great Snakes | 3 | |
| salmansayad78_7 | Salty | 20 | |
| lauu_r | Encoding Challenge | 40 | |
| NezVener | Encoding Challenge | 40 | |
| aHack | Finding Flags | 2 | |
| lainishere | ASCII | 5 | |
| melihlight | Base64 | 10 | |
| flickzy | You either know, XOR you don't | 30 | |
| Ajlan | XOR Starter | 10 | |
| lauu_r | Bytes and Big Integers | 10 | |
| Ajlan | Bytes and Big Integers | 10 | |
| melihlight | Hex | 5 | |
| Ajlan | Base64 | 10 | |
| Ajlan | Hex | 5 | |
| dbelgorod | Finding Flags | 2 | |
| FIDB0 | Modular Arithmetic 1 | 20 | |
| Ajlan | ASCII | 5 | |
| Derha_m | Jack's Birthday Confusion | 30 | |
| Derha_m | Jack's Birthday Hash | 20 | |
| oshvaldo | Bytes and Big Integers | 10 | |
| Derha_m | WOTS Up 2 | 90 | |
| Derha_m | WOTS Up | 75 | |
| Derha_m | Merkle Trees | 25 | |
| Derha_m | Invariant | 250 | |
| Derha_m | Mixed Up | 120 | |
| Derha_m | MDFlag | 125 | |
| Derha_m | MD0 | 80 | |
| Derha_m | No Difference | 175 | |
| hacker964 | Modular Inverting | 25 | |
| Derha_m | Twin Keys | 100 | |
| salmansayad78_7 | Manyprime | 40 | |
| Abdulrahman20 | The Matrix Revolutions | 125 | |
| Abdulrahman20 | The Matrix Reloaded | 100 | |
| Derha_m | PriMeD5 | 100 | |
| Abdulrahman20 | The Matrix | 75 | |
| Abdulrahman20 | Script Kiddie | 70 | |
| Derha_m | Hash Stuffing | 50 | |
| Abdulrahman20 | Static Client 2 | 120 | |
| Abdulrahman20 | Additive | 70 | |
| Abdulrahman20 | Static Client | 100 | |
| Abdulrahman20 | Export-grade | 100 | |
| Abdulrahman20 | Parameter Injection | 60 | |
| mortac | Vote for Pedro | 150 | |
| Derha_m | Collider | 50 | |
| hacker964 | Modular Arithmetic 2 | 20 |
You are now level Current level