| Date | User | Challenge | Score |
| ahhmeDDDD | Crossed Wires | 100 | |
| ahhmeDDDD | Everything is Big | 70 | |
| ahhmeDDDD | Modulus Inutilis | 50 | |
| ahhmeDDDD | Manyprime | 40 | |
| p4rtr1dge | Great Snakes | 3 | |
| ahhmeDDDD | Salty | 20 | |
| p4rtr1dge | Finding Flags | 2 | |
| ahhmeDDDD | Square Eyes | 35 | |
| Yorha | Bytes and Big Integers | 10 | |
| ahhmeDDDD | Monoprime | 30 | |
| philtran | XOR Starter | 10 | |
| ahhmeDDDD | Inferius Prime | 30 | |
| philtran | Bytes and Big Integers | 10 | |
| philtran | Base64 | 10 | |
| ahhmeDDDD | Factoring | 15 | |
| MasterLJ | Modular Square Root | 35 | |
| ShahnewasAhmed | Greatest Common Divisor | 15 | |
| philtran | Hex | 5 | |
| HandyZahwan04 | Hex | 5 | |
| NicoNieners | Bean Counter | 60 | |
| JimmyERC | You either know, XOR you don't | 30 | |
| Juha | Modular Inverting | 25 | |
| vitt | Round Keys | 20 | |
| sirdoug21 | Modular Inverting | 25 | |
| JimmyERC | Favourite byte | 20 | |
| Juha | Modular Arithmetic 2 | 20 | |
| sarthak007 | Resisting Bruteforce | 10 | |
| JimmyERC | XOR Properties | 15 | |
| MasterLJ | Legendre Symbol | 35 | |
| JimmyERC | XOR Starter | 10 | |
| ahhmeDDDD | RSA Signatures | 25 | |
| sirdoug21 | Modular Arithmetic 2 | 20 | |
| ahhmeDDDD | RSA Decryption | 20 | |
| ahhmeDDDD | Private Keys | 20 | |
| ahhmeDDDD | Euler's Totient | 20 | |
| sarthak007 | Point Negation | 10 | |
| ahhmeDDDD | Public Keys | 15 | |
| JimmyERC | Bytes and Big Integers | 10 | |
| ahhmeDDDD | Modular Exponentiation | 10 | |
| no_brain | Bytes and Big Integers | 10 | |
| starnotes | Confusion through Substitution | 25 | |
| psoet | ZKP Introduction | 5 | |
| philtran | ASCII | 5 | |
| JimmyERC | Base64 | 10 | |
| ragunogh | Structure of AES | 15 | |
| YWzhong | Logon Zero | 80 | |
| February | Greatest Common Divisor | 15 | |
| HandyZahwan04 | ASCII | 5 | |
| JimmyERC | Hex | 5 | |
| sirdoug21 | Modular Arithmetic 1 | 20 |
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