| Date | User | Challenge | Score |
| T075810 | Bytes and Big Integers | 10 | |
| T075810 | Lemur XOR | 40 | |
| Ja4V8s28Ck | No Way Back Home | 100 | |
| hot_nyanalyst | Bytes and Big Integers | 10 | |
| ramon | Finding Flags | 2 | |
| T075810 | Base64 | 10 | |
| T075810 | Network Attacks | 5 | |
| sgrenz | Adrien's Signs | 80 | |
| matteocap0 | Quadratic Residues | 25 | |
| julialu | PriMeD5 | 100 | |
| mohamed404 | ASCII | 5 | |
| sgrenz | Chinese Remainder Theorem | 40 | |
| Uiin | Finding Flags | 2 | |
| julialu | Hash Stuffing | 50 | |
| G4B3SZ | Hex | 5 | |
| G4B3SZ | ASCII | 5 | |
| radare | L-Win | 120 | |
| sgrenz | Modular Square Root | 35 | |
| Smuggler | Modular Arithmetic 1 | 20 | |
| Mellivora | Finding Flags | 2 | |
| julialu | Collider | 50 | |
| G4B3SZ | Great Snakes | 3 | |
| w4llnut | Greatest Common Divisor | 15 | |
| G4B3SZ | Finding Flags | 2 | |
| moystee | Triple DES | 60 | |
| julialu | Jack's Birthday Confusion | 30 | |
| moystee | Lazy CBC | 60 | |
| ryuun1corn | Lo-Hi Card Game | 120 | |
| saro | Toshi's Treasure | 150 | |
| ggerod | Modular Square Root | 35 | |
| rfmph | Quadratic Residues | 25 | |
| guyanyong | Structure of AES | 15 | |
| jellio04 | Encoding Challenge | 40 | |
| ggerod | Legendre Symbol | 35 | |
| greyx76 | Hex | 5 | |
| DavidTruong | No Way Back Home | 100 | |
| greyx76 | ASCII | 5 | |
| moystee | Flipping Cookie | 60 | |
| greyx76 | Great Snakes | 3 | |
| greyx76 | Finding Flags | 2 | |
| TinyLean | Size and Basis | 15 | |
| Lauromar | Symmetry | 50 | |
| moystee | ECB Oracle | 60 | |
| Lauromar | Triple DES | 60 | |
| Lauromar | Lazy CBC | 60 | |
| TinyLean | Vectors | 10 | |
| Lauromar | Flipping Cookie | 60 | |
| Lauromar | ECB Oracle | 60 | |
| Lauromar | ECB CBC WTF | 55 | |
| Lauromar | Passwords as Keys | 50 |
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