| Date | User | Challenge | Score |
| pako_pirate | You either know, XOR you don't | 30 | |
| j_m | Hamiltonicity 2 (CryptoHack) | 0 | |
| j_m | Hamiltonicity 2 | 175 | |
| Anass67 | Infinite Descent | 50 | |
| eloise_ | Great Snakes | 3 | |
| eloise_ | Finding Flags | 2 | |
| ana_s_ | XOR Starter | 10 | |
| r777_ | Unencryptable | 125 | |
| gruenerheli | Encoding Challenge | 40 | |
| r777_ | Roll your Own | 125 | |
| pako_pirate | Favourite byte | 20 | |
| Dngm5h | Finding Flags | 2 | |
| Samigo | Passwords as Keys | 50 | |
| Cveta | XOR Starter | 10 | |
| Momonopp | Modular Binomials | 80 | |
| Momonopp | Adrien's Signs | 80 | |
| r777_ | Ellipse Curve Cryptography | 125 | |
| Momonopp | Successive Powers | 60 | |
| Anass67 | Marin's Secrets | 50 | |
| paulihno15 | Export-grade | 100 | |
| lia_samuelov | Greatest Common Divisor | 15 | |
| Momonopp | Chinese Remainder Theorem | 40 | |
| r777_ | No Way Back Home | 100 | |
| Momonopp | Modular Square Root | 35 | |
| Momonopp | Legendre Symbol | 35 | |
| pako_pirate | XOR Properties | 15 | |
| Momonopp | Quadratic Residues | 25 | |
| lia_samuelov | XOR Starter | 10 | |
| r777_ | Broken RSA | 100 | |
| Momonopp | Forbidden Fruit | 150 | |
| Momonopp | Paper Plane | 120 | |
| lia_samuelov | Encoding Challenge | 40 | |
| r777_ | Modular Binomials | 80 | |
| User0069 | ProSign 3 | 100 | |
| McGrawDMH | Hex | 5 | |
| r777_ | Adrien's Signs | 80 | |
| pako_pirate | XOR Starter | 10 | |
| Momonopp | The Good, The Pad, The Ugly | 100 | |
| NekoRolly | Modular Square Root | 35 | |
| Momonopp | Pad Thai | 80 | |
| Momonopp | Oh SNAP | 120 | |
| Momonopp | Dancing Queen | 120 | |
| r777_ | Successive Powers | 60 | |
| ana_s_ | Bytes and Big Integers | 10 | |
| Momonopp | Stream of Consciousness | 80 | |
| Momonopp | Logon Zero | 80 | |
| r777_ | Chinese Remainder Theorem | 40 | |
| Momonopp | CTRIME | 70 | |
| r777_ | Modular Square Root | 35 | |
| Momonopp | Bean Counter | 60 |
You are now level Current level