| Date | User | Challenge | Score |
| huitrebleu | Modular Arithmetic 1 | 20 | |
| Brad3017 | Modular Binomials | 80 | |
| Devia | Base64 | 10 | |
| kayal | Greatest Common Divisor | 15 | |
| huitrebleu | Extended GCD | 20 | |
| Blue_ | Let's Prove It | 120 | |
| kameshk | Hex | 5 | |
| kayal | You either know, XOR you don't | 30 | |
| siriusraven | Modular Binomials | 80 | |
| kayal | Favourite byte | 20 | |
| radare | 1n_jection (Zh3r0 CTF V2) | 0 | |
| kayal | XOR Properties | 15 | |
| kayal | XOR Starter | 10 | |
| rakib314167 | Quadratic Residues | 25 | |
| kayal | Bytes and Big Integers | 10 | |
| kameshk | ASCII | 5 | |
| kameshk | Great Snakes | 3 | |
| kayal | Base64 | 10 | |
| Devia | Hex | 5 | |
| Suica | You either know, XOR you don't | 30 | |
| kavzz | Finding Flags | 2 | |
| kayal | Hex | 5 | |
| ahmed_1ACR | XOR Starter | 10 | |
| khxjn | Point Negation | 10 | |
| kayal | ASCII | 5 | |
| jgi | XOR Properties | 15 | |
| Korkior | Successive Powers | 60 | |
| kayal | Great Snakes | 3 | |
| Nadarama | Structure of AES | 15 | |
| kayal | Finding Flags | 2 | |
| Devia | ASCII | 5 | |
| jaiveersingh | Resisting Bruteforce | 10 | |
| kameshk | Finding Flags | 2 | |
| ahmed_1ACR | Chinese Remainder Theorem | 40 | |
| andrearacc | Adrien's Signs | 80 | |
| jaiveersingh | Keyed Permutations | 5 | |
| Devia | Great Snakes | 3 | |
| ahmed_1ACR | Modular Square Root | 35 | |
| Nimadli | Bytes and Big Integers | 10 | |
| rkk | Finding Flags | 2 | |
| rsshiva403 | Great Snakes | 3 | |
| samboso | Bytes and Big Integers | 10 | |
| rsshiva403 | Finding Flags | 2 | |
| Loivan | Base64 | 10 | |
| Yeonjae | Resisting Bruteforce | 10 | |
| eunsoo | Resisting Bruteforce | 10 | |
| Nadarama | Resisting Bruteforce | 10 | |
| Nimadli | Base64 | 10 | |
| rakib314167 | Modular Inverting | 25 | |
| bobiealice | Pad Thai | 80 |
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