| Date | User | Challenge | Score |
| Kaela | Diffusion through Permutation | 30 | |
| Suyash_Vats | Modular Arithmetic 1 | 20 | |
| rwxerwx | Finding Flags | 2 | |
| luwofi | Noise Free | 40 | |
| Suyash_Vats | Extended GCD | 20 | |
| HHDJD | Finding Flags | 2 | |
| Suyash_Vats | Greatest Common Divisor | 15 | |
| Suyash_Vats | You either know, XOR you don't | 30 | |
| Suyash_Vats | Favourite byte | 20 | |
| oxide | You either know, XOR you don't | 30 | |
| Dexecuting | Round Keys | 20 | |
| oxide | Favourite byte | 20 | |
| oxide | XOR Properties | 15 | |
| luwofi | From Private to Public Key LWE | 25 | |
| Dexecuting | Structure of AES | 15 | |
| oxide | XOR Starter | 10 | |
| hakka52 | No Difference | 175 | |
| HighestClimber | Resisting Bruteforce | 10 | |
| jimmy20180130 | Manyprime | 40 | |
| Dexecuting | Resisting Bruteforce | 10 | |
| luwofi | LWE Low Bits Message | 20 | |
| Dexecuting | Keyed Permutations | 5 | |
| HighestClimber | Keyed Permutations | 5 | |
| oxide | Bytes and Big Integers | 10 | |
| Hexerei | Generators of Groups | 20 | |
| HighestClimber | Modular Binomials | 80 | |
| oxide | Base64 | 10 | |
| luwofi | LWE High Bits Message | 15 | |
| oxide | Hex | 5 | |
| oxide | ASCII | 5 | |
| oxide | Great Snakes | 3 | |
| vanMjnh | Bruce Schneier's Password | 100 | |
| oxide | Finding Flags | 2 | |
| vanMjnh | Armory | 100 | |
| vanMjnh | Bit by Bit | 100 | |
| yr81 | Megalomaniac 1 | 100 | |
| zhang061218 | ASCII | 5 | |
| vanMjnh | An Exceptional Twisted Mind | 125 | |
| Hexerei | Working with Fields | 10 | |
| zhang061218 | Great Snakes | 3 | |
| seraph1ezZ | XOR Properties | 15 | |
| r01x | Adrien's Signs | 80 | |
| yasminka | JWT Secrets | 25 | |
| bluesky2113 | Bean Counter | 60 | |
| jimmy20180130 | Square Eyes | 35 | |
| FirstOakTree | ASCII | 5 | |
| katkat | Bytes and Big Integers | 10 | |
| vanMjnh | Edwards Goes Degenerate | 100 | |
| FirstOakTree | Great Snakes | 3 | |
| vanMjnh | Invariant | 250 |
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