| Date | User | Challenge | Score |
| Blixow | Find the Lattice | 100 | |
| lunkes | Favourite byte | 20 | |
| lgrr | Finding Flags | 2 | |
| Koalko | Adrien's Signs | 80 | |
| Spartan117 | Hex | 5 | |
| bobiealice | Salty | 20 | |
| mohatem06 | Monoprime | 30 | |
| adrianps93 | Computing Shared Secrets | 30 | |
| aalishaf88 | Favourite byte | 20 | |
| Spartan117 | ASCII | 5 | |
| Amro_Hussein | Point Negation | 10 | |
| Janarthanan | XOR Properties | 15 | |
| adrianps93 | Computing Public Values | 25 | |
| administrator___ | Bringing It All Together | 50 | |
| 010001000101001 | Computing Shared Secrets | 30 | |
| adrianps93 | Working with Fields | 10 | |
| yuzu | Encoding Challenge | 40 | |
| KuyangKutai | Base64 | 10 | |
| Amro_Hussein | Background Reading | 5 | |
| alzzz | Everything is Still Big | 100 | |
| mohatem06 | Factoring | 15 | |
| bobiealice | Manyprime | 40 | |
| hanahiennguyen | Collider | 50 | |
| 010001000101001 | Computing Public Values | 25 | |
| tyluudinh | ECB CBC WTF | 55 | |
| tyluudinh | Flipping Cookie | 60 | |
| tyluudinh | Lazy CBC | 60 | |
| tyluudinh | Triple DES | 60 | |
| Guzlyach | You either know, XOR you don't | 30 | |
| 010001000101001 | Generators of Groups | 20 | |
| lunkes | XOR Properties | 15 | |
| salut | Bytes and Big Integers | 10 | |
| lunkes | XOR Starter | 10 | |
| aalishaf88 | XOR Properties | 15 | |
| KuyangKutai | Hex | 5 | |
| mohamed750boukh | XOR Starter | 10 | |
| 010001000101001 | Working with Fields | 10 | |
| lunkes | Bytes and Big Integers | 10 | |
| wiener1 | Real Eisenstein | 150 | |
| 010001000101001 | Modulus Inutilis | 50 | |
| JoniLyomila | Finding Flags | 2 | |
| lunkes | Base64 | 10 | |
| tyluudinh | Bringing It All Together | 50 | |
| tyluudinh | Diffusion through Permutation | 30 | |
| tyluudinh | Confusion through Substitution | 25 | |
| tyluudinh | Round Keys | 20 | |
| tyluudinh | Structure of AES | 15 | |
| tyluudinh | Resisting Bruteforce | 10 | |
| wiener1 | Cofactor Cofantasy | 150 | |
| adrianps93 | Factoring | 15 |
You are now level Current level