| Date | User | Challenge | Score |
| zecarriola | Base64 | 10 | |
| xtrm0 | Trust Games | 150 | |
| PAWOS | No Leaks | 100 | |
| PAWOS | Gotta Go Fast | 40 | |
| zecarriola | Hex | 5 | |
| mostafa3009 | Bytes and Big Integers | 10 | |
| relix00emma | Greatest Common Divisor | 15 | |
| nimrod_kobia | Passwords as Keys | 50 | |
| nimrod_kobia | Modes of Operation Starter | 15 | |
| Mufasa | XOR Properties | 15 | |
| Avicena | ASCII | 5 | |
| zecarriola | ASCII | 5 | |
| jose_enrique | Base64 | 10 | |
| alekstv | Export-grade | 100 | |
| jose_enrique | Hex | 5 | |
| blueHead | Favourite byte | 20 | |
| zecarriola | Great Snakes | 3 | |
| mr_chambers | Base64 | 10 | |
| ecapessa | Great Snakes | 3 | |
| mr_chambers | Hex | 5 | |
| ecapessa | Finding Flags | 2 | |
| mr_chambers | ASCII | 5 | |
| blueHead | XOR Properties | 15 | |
| mr_chambers | Great Snakes | 3 | |
| Waeel79 | Static Client | 100 | |
| mr_chambers | Finding Flags | 2 | |
| jose_enrique | ASCII | 5 | |
| jose_enrique | Great Snakes | 3 | |
| jose_enrique | Finding Flags | 2 | |
| Waeel79 | Generators of Groups | 20 | |
| Waeel79 | Working with Fields | 10 | |
| Thismy | Finding Flags | 2 | |
| Rellik | Greatest Common Divisor | 15 | |
| Anon3605 | Modular Inverting | 25 | |
| a_windy_crow | Base64 | 10 | |
| Neeeuro | You either know, XOR you don't | 30 | |
| Anon3605 | Modular Arithmetic 2 | 20 | |
| Mufasa | XOR Starter | 10 | |
| Di_25_Va | Encoding Challenge | 40 | |
| Avicena | Great Snakes | 3 | |
| Di_25_Va | Bytes and Big Integers | 10 | |
| jqn | ASCII | 5 | |
| Di_25_Va | Base64 | 10 | |
| Di_25_Va | Hex | 5 | |
| jqn | Great Snakes | 3 | |
| jqn | Finding Flags | 2 | |
| Di_25_Va | ASCII | 5 | |
| Mr_Inch | Great Snakes | 3 | |
| filip1727 | Base64 | 10 | |
| Eralyen | Modular Inverting | 25 |
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