| Date | User | Challenge | Score |
| Alena | Greatest Common Divisor | 15 | |
| silentRoar | Bringing It All Together | 50 | |
| hwan | Structure of AES | 15 | |
| mmd1hp | You either know, XOR you don't | 30 | |
| Alena | You either know, XOR you don't | 30 | |
| CrispyChip146 | Modular Inverting | 25 | |
| Alena | Favourite byte | 20 | |
| wanttobethebest | Efficient Exchange | 50 | |
| Banana_Babanana | Modulus Inutilis | 50 | |
| Alena | XOR Properties | 15 | |
| Alena | XOR Starter | 10 | |
| CrispyChip146 | Modular Arithmetic 2 | 20 | |
| Alena | Bytes and Big Integers | 10 | |
| computersRmagic | Finding Flags | 2 | |
| XingLing | Structure of AES | 15 | |
| someone1o11 | XOR Properties | 15 | |
| XingLing | Resisting Bruteforce | 10 | |
| XingLing | Keyed Permutations | 5 | |
| mmd1hp | Favourite byte | 20 | |
| CrispyChip146 | Modular Arithmetic 1 | 20 | |
| Banana_Babanana | Salty | 20 | |
| Banana_Babanana | Manyprime | 40 | |
| CrispyChip146 | Extended GCD | 20 | |
| liba | Hex | 5 | |
| IKESIRT | Extended GCD | 20 | |
| Hg_hehe | ASCII | 5 | |
| XingLing | Favourite byte | 20 | |
| mmd1hp | XOR Properties | 15 | |
| That11thHarmonic | Successive Powers | 60 | |
| iyheart | LWE Background | 5 | |
| liba | ASCII | 5 | |
| Keerthan_V | Generators of Groups | 20 | |
| wanttobethebest | Curves and Logs | 40 | |
| natashaborda | Export-grade | 100 | |
| Keerthan_V | Working with Fields | 10 | |
| natashaborda | Parameter Injection | 60 | |
| ugp6 | Bytes and Big Integers | 10 | |
| wanttobethebest | Scalar Multiplication | 35 | |
| Keerthan_V | Modulus Inutilis | 50 | |
| patipol | XOR Starter | 10 | |
| Keerthan_V | Salty | 20 | |
| liba | Great Snakes | 3 | |
| someone1o11 | XOR Starter | 10 | |
| Banana_Babanana | Square Eyes | 35 | |
| szzaps | Fast Primes | 75 | |
| ahmedmario | Export-grade | 100 | |
| ahmedmario | Parameter Injection | 60 | |
| szzaps | CERTainly not | 30 | |
| IKESIRT | Greatest Common Divisor | 15 | |
| ugp6 | Base64 | 10 |
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