| Date | User | Challenge | Score |
| Thorbeam | ZKP Introduction | 5 | |
| ynwa_ | Modular Arithmetic 2 | 20 | |
| LoreK_ | Paper Plane | 120 | |
| k7ate | Finding Flags | 2 | |
| anotherlight | Base64 | 10 | |
| francuccio08 | Modular Inverting | 25 | |
| pehan | RSA Decryption | 20 | |
| francuccio08 | Modular Arithmetic 2 | 20 | |
| ynwa_ | Modular Arithmetic 1 | 20 | |
| anotherlight | Hex | 5 | |
| pehan | Private Keys | 20 | |
| ttttt123 | Great Snakes | 3 | |
| ttttt123 | Finding Flags | 2 | |
| ynwa_ | Extended GCD | 20 | |
| pehan | Euler's Totient | 20 | |
| flickzy | Base64 | 10 | |
| 7a__xs | Invariant | 250 | |
| anotherlight | ASCII | 5 | |
| 7a__xs | Mixed Up | 120 | |
| 7a__xs | MDFlag | 125 | |
| 7a__xs | MD0 | 80 | |
| agrocos | Great Snakes | 3 | |
| 7a__xs | No Difference | 175 | |
| pehan | Public Keys | 15 | |
| anotherlight | Great Snakes | 3 | |
| 7a__xs | Twin Keys | 100 | |
| anotherlight | Finding Flags | 2 | |
| agrocos | Finding Flags | 2 | |
| pehan | Modular Exponentiation | 10 | |
| asma26 | Greatest Common Divisor | 15 | |
| flickzy | Hex | 5 | |
| CYDF1121 | Cofactor Cofantasy | 150 | |
| xtrm0 | No Random, No Bias | 120 | |
| flickzy | ASCII | 5 | |
| DesoukyAndSoda | Base64 | 10 | |
| flickzy | Great Snakes | 3 | |
| flickzy | Finding Flags | 2 | |
| mahmoudkafafi | ASCII | 5 | |
| mahmoudkafafi | Great Snakes | 3 | |
| asma26 | You either know, XOR you don't | 30 | |
| mahmoudkafafi | Finding Flags | 2 | |
| mOhanaa | Favourite byte | 20 | |
| Hiiii | Favourite byte | 20 | |
| Zagas_237 | XOR Properties | 15 | |
| lipou | RSA Signatures | 25 | |
| mOhanaa | XOR Properties | 15 | |
| lipou | RSA Decryption | 20 | |
| lipou | Private Keys | 20 | |
| hacker964 | You either know, XOR you don't | 30 | |
| fjukh7872 | Dual Masters | 90 |
You are now level Current level