| Date | User | Challenge | Score |
| Rufan | Finding Flags | 2 | |
| danieladam | Bytes and Big Integers | 10 | |
| carperca23 | Base64 | 10 | |
| kanellam | Modular Arithmetic 1 | 20 | |
| W0lf_19S | Hex | 5 | |
| night_owl | Gram Schmidt | 30 | |
| JawaSkrypter | Base64 | 10 | |
| carperca23 | Hex | 5 | |
| PanagiotaTr | Parameter Injection | 60 | |
| s0lver | Bytes and Big Integers | 10 | |
| whiteknight | Modes of Operation Starter | 15 | |
| capping | Finding Flags | 2 | |
| xEcho1337 | Lemur XOR | 40 | |
| carperca23 | ASCII | 5 | |
| elbmeryeme | Finding Flags | 2 | |
| kanellam | Extended GCD | 20 | |
| SaumyaS | Greatest Common Divisor | 15 | |
| s0lver | Base64 | 10 | |
| W0lf_19S | ASCII | 5 | |
| carperca23 | Great Snakes | 3 | |
| xEcho1337 | You either know, XOR you don't | 30 | |
| W0lf_19S | Great Snakes | 3 | |
| carperca23 | Finding Flags | 2 | |
| MonsterGamer757 | XOR Starter | 10 | |
| xEcho1337 | Favourite byte | 20 | |
| rmn_bm | Manyprime | 40 | |
| xEcho1337 | XOR Properties | 15 | |
| toomanysecrets | You either know, XOR you don't | 30 | |
| butcher | Everything is Still Big | 100 | |
| xEcho1337 | XOR Starter | 10 | |
| lerequin | XOR Starter | 10 | |
| JawaSkrypter | Hex | 5 | |
| kanellam | Greatest Common Divisor | 15 | |
| MonsterGamer757 | Bytes and Big Integers | 10 | |
| SaumyaS | You either know, XOR you don't | 30 | |
| W0lf_19S | Finding Flags | 2 | |
| xEcho1337 | Encoding Challenge | 40 | |
| MonsterGamer757 | Base64 | 10 | |
| MonsterGamer757 | Hex | 5 | |
| JawaSkrypter | ASCII | 5 | |
| JawaSkrypter | Great Snakes | 3 | |
| JawaSkrypter | Finding Flags | 2 | |
| rmn_bm | Monoprime | 30 | |
| MonsterGamer757 | ASCII | 5 | |
| CyberSyndrome | Lemur XOR | 40 | |
| Bionic_Hacker | Finding Flags | 2 | |
| NatsuGwada | Adrien's Signs | 80 | |
| MonsterGamer757 | Great Snakes | 3 | |
| NatsuGwada | Chinese Remainder Theorem | 40 | |
| lleenn | Transparency | 50 |
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