| Date | User | Challenge | Score |
| wmrach | Favourite byte | 20 | |
| hiroki | Finding Flags | 2 | |
| wmrach | XOR Properties | 15 | |
| zaire | Keyed Permutations | 5 | |
| bluesky2113 | Curveball | 100 | |
| abjit | Finding Flags | 2 | |
| vishalgupta | Hex | 5 | |
| sundul969 | Bruce Schneier's Password | 100 | |
| gakenyimm | XOR Starter | 10 | |
| useless | Network Attacks | 5 | |
| jcperez18 | Modular Square Root | 35 | |
| VuiVe | Seventy-Two | 50 | |
| Jellalakt | Signing Server | 60 | |
| Jellalakt | Null or Never | 100 | |
| eureka | Extended GCD | 20 | |
| wmrach | XOR Starter | 10 | |
| Cryb | ASCII | 5 | |
| gakenyimm | Bytes and Big Integers | 10 | |
| Cryb | Great Snakes | 3 | |
| FORESTA | ASCII | 5 | |
| ichthys | Bytes and Big Integers | 10 | |
| wmrach | Bytes and Big Integers | 10 | |
| e_omondi | Bringing It All Together | 50 | |
| FORESTA | Great Snakes | 3 | |
| e_omondi | Diffusion through Permutation | 30 | |
| e_omondi | Confusion through Substitution | 25 | |
| e_omondi | Round Keys | 20 | |
| e_omondi | Structure of AES | 15 | |
| FORESTA | Finding Flags | 2 | |
| e_omondi | Resisting Bruteforce | 10 | |
| e_omondi | Keyed Permutations | 5 | |
| ichthys | Base64 | 10 | |
| e_omondi | Modular Binomials | 80 | |
| e_omondi | Adrien's Signs | 80 | |
| e_omondi | Chinese Remainder Theorem | 40 | |
| e_omondi | Modular Square Root | 35 | |
| Cryb | Finding Flags | 2 | |
| e_omondi | Legendre Symbol | 35 | |
| Pooja_koppad_04 | Keyed Permutations | 5 | |
| e_omondi | Quadratic Residues | 25 | |
| e_omondi | Modular Inverting | 25 | |
| Pooja_koppad_04 | Great Snakes | 3 | |
| e_omondi | Modular Arithmetic 2 | 20 | |
| e_omondi | Modular Arithmetic 1 | 20 | |
| Pooja_koppad_04 | Finding Flags | 2 | |
| pseudostate | Everything is Big | 70 | |
| divyameesala2003 | Modular Exponentiation | 10 | |
| sundul969 | import numpy as MT (Zh3r0 CTF V2) | 0 | |
| sundul969 | Tenet: The Plagarism (HKCERT CTF) | 0 | |
| sundul969 | Real Mersenne (Zh3r0 CTF V2) | 0 |
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