| Date | User | Challenge | Score |
| justbanz | Bytes and Big Integers | 10 | |
| grondon | ASCII | 5 | |
| kacpersowka | Gram Schmidt | 30 | |
| stephtacularrrr | Finding Flags | 2 | |
| selim101 | Finding Flags | 2 | |
| NAV33DULLAH | Finding Flags | 2 | |
| dhrisaurus | Real Eisenstein | 150 | |
| grombk | Base64 | 10 | |
| ne_0ly | RSA Signatures | 25 | |
| grombk | Hex | 5 | |
| Ghadeer154 | Stream of Consciousness | 80 | |
| eirinimik | No Leaks | 100 | |
| ne_0ly | RSA Decryption | 20 | |
| grombk | ASCII | 5 | |
| ne_0ly | Private Keys | 20 | |
| grondon | Great Snakes | 3 | |
| ne_0ly | Euler's Totient | 20 | |
| MichaelMbugua | Quadratic Residues | 25 | |
| Minhhau | ECB Oracle | 60 | |
| byxlopoqpul | Computing Public Values | 25 | |
| ne_0ly | Manyprime | 40 | |
| ne_0ly | Square Eyes | 35 | |
| ne_0ly | Monoprime | 30 | |
| grombk | Great Snakes | 3 | |
| Onamano | Quadratic Residues | 25 | |
| grombk | Finding Flags | 2 | |
| Zael | Favourite byte | 20 | |
| ne_0ly | Inferius Prime | 30 | |
| ne_0ly | Factoring | 15 | |
| 191917 | Greatest Common Divisor | 15 | |
| ne_0ly | Everything is Still Big | 100 | |
| ne_0ly | Crossed Wires | 100 | |
| ne_0ly | Everything is Big | 70 | |
| ne_0ly | Modulus Inutilis | 50 | |
| ne_0ly | Salty | 20 | |
| Onamano | Modular Inverting | 25 | |
| l3th4l | Encoding Challenge | 40 | |
| byxlopoqpul | Generators of Groups | 20 | |
| yowsevanz | Confusion through Substitution | 25 | |
| ne_0ly | Endless Emails | 150 | |
| ne_0ly | Infinite Descent | 50 | |
| ne_0ly | Marin's Secrets | 50 | |
| ne_0ly | Fast Primes | 75 | |
| Onamano | Modular Arithmetic 2 | 20 | |
| rev_cryp | Structure of AES | 15 | |
| ne_0ly | Ron was Wrong, Whit is Right | 90 | |
| anbarbon | Scalar Multiplication | 35 | |
| ne_0ly | RSA Backdoor Viability | 175 | |
| njga1 | XOR Starter | 10 | |
| 223874_Mark | XOR Properties | 15 |
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