| Date | User | Challenge | Score |
| aakifaakif | Bytes and Big Integers | 10 | |
| Dimalano | Crossed Wires | 100 | |
| Dimalano | Everything is Big | 70 | |
| rayenoudaa | Great Snakes | 3 | |
| Dimalano | Modulus Inutilis | 50 | |
| knkl384038 | You either know, XOR you don't | 30 | |
| Dimalano | Salty | 20 | |
| sowon | Bytes and Big Integers | 10 | |
| rayenoudaa | Finding Flags | 2 | |
| Dimalano | Manyprime | 40 | |
| sowon | Base64 | 10 | |
| sowon | Hex | 5 | |
| ABDELHAK95 | Hex | 5 | |
| sowon | ASCII | 5 | |
| Dimalano | Square Eyes | 35 | |
| Dimalano | Monoprime | 30 | |
| Dimalano | Inferius Prime | 30 | |
| Dimalano | Factoring | 15 | |
| Beethoven3 | Dancing Queen | 120 | |
| sowon | Network Attacks | 5 | |
| ABDELHAK95 | ASCII | 5 | |
| Dimalano | RSA Signatures | 25 | |
| sowon | Great Snakes | 3 | |
| sowon | Finding Flags | 2 | |
| Dimalano | RSA Decryption | 20 | |
| 3bo | Adrien's Signs | 80 | |
| Dimalano | Private Keys | 20 | |
| Dimalano | Euler's Totient | 20 | |
| Dimalano | Public Keys | 15 | |
| knkl384038 | Favourite byte | 20 | |
| ty4115 | Adrien's Signs | 80 | |
| Dimalano | Modular Exponentiation | 10 | |
| knkl384038 | XOR Properties | 15 | |
| MianSudais | Encoding Challenge | 40 | |
| 3bo | Chinese Remainder Theorem | 40 | |
| ty4115 | Chinese Remainder Theorem | 40 | |
| drnikos | Flipping Cookie | 60 | |
| AndyVale | Logon Zero | 80 | |
| ty4115 | Modular Square Root | 35 | |
| RudenShtanger | Modulus Inutilis | 50 | |
| MarcosV | Hex | 5 | |
| RudenShtanger | Salty | 20 | |
| Nicky | ASCII | 5 | |
| learnercryptohac | Structure of AES | 15 | |
| Fr0st1ord | Bytes and Big Integers | 10 | |
| Nicky | Great Snakes | 3 | |
| Nicky | Finding Flags | 2 | |
| jbl | Modular Arithmetic 2 | 20 | |
| Bonolori404 | Network Attacks | 5 | |
| Spdiey | ASCII | 5 |
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