| Date | User | Challenge | Score |
| kyub3y | Favourite byte | 20 | |
| witi93 | Extended GCD | 20 | |
| meisterdieb555 | Hex | 5 | |
| kyub3y | XOR Properties | 15 | |
| kunklez1 | Bytes and Big Integers | 10 | |
| kunklez1 | Base64 | 10 | |
| kunklez1 | Hex | 5 | |
| kunklez1 | ASCII | 5 | |
| kyub3y | XOR Starter | 10 | |
| hurst1719n | Great Snakes | 3 | |
| hurst1719n | Finding Flags | 2 | |
| Abstract | Flipping Cookie | 60 | |
| takumiooo | ASCII | 5 | |
| takumiooo | Great Snakes | 3 | |
| 0xghost | Keyed Permutations | 5 | |
| takumiooo | Finding Flags | 2 | |
| witi93 | Greatest Common Divisor | 15 | |
| Human_aka_Human | XOR Starter | 10 | |
| Edemir | Finding Flags | 2 | |
| Aghil | Modular Square Root | 35 | |
| Pyhro | Finding Flags | 2 | |
| Human_aka_Human | Bytes and Big Integers | 10 | |
| NashatAnwar | MDFlag | 125 | |
| witi93 | You either know, XOR you don't | 30 | |
| Patersn1 | Bytes and Big Integers | 10 | |
| Patersn1 | Base64 | 10 | |
| Patersn1 | Hex | 5 | |
| witi93 | Favourite byte | 20 | |
| SpaceCat | Great Snakes | 3 | |
| SpaceCat | Finding Flags | 2 | |
| witi93 | XOR Properties | 15 | |
| lizy2705 | ASCII | 5 | |
| lizy2705 | Great Snakes | 3 | |
| H4ck3rBl4ck | Resisting Bruteforce | 10 | |
| lizy2705 | Finding Flags | 2 | |
| H4ck3rBl4ck | Keyed Permutations | 5 | |
| witi93 | XOR Starter | 10 | |
| H4ck3rBl4ck | Modular Binomials | 80 | |
| XyLost | Base64 | 10 | |
| Guislande | CERTainly not | 30 | |
| lrnzsir | CSIDH Key Exchange | 90 | |
| XyLost | Hex | 5 | |
| Guislande | RSA Signatures | 25 | |
| H4ck3rBl4ck | Adrien's Signs | 80 | |
| Amro_Hussein | Static Client | 100 | |
| Qianben | You either know, XOR you don't | 30 | |
| mm302 | Lazy CBC | 60 | |
| lrnzsir | Twisted CSIDH Isogenies | 70 | |
| duckpancakes | Static Client | 100 | |
| nijan | Hex | 5 |
You are now level Current level