| Date | User | Challenge | Score |
| Cruzz | ASCII | 5 | |
| Qu1n7as | ProSign 3 | 100 | |
| Abhinav_Manoj | Working with Fields | 10 | |
| zhh | Transparency | 50 | |
| zhh | SSH Keys | 35 | |
| zhh | CERTainly not | 30 | |
| zhh | Privacy-Enhanced Mail? | 25 | |
| tackmin1204 | Round Keys | 20 | |
| mayfly | Gaussian Reduction | 50 | |
| mayfly | What's a Lattice? | 40 | |
| zhh | Encoding Challenge | 40 | |
| mayfly | Gram Schmidt | 30 | |
| OttaC | You either know, XOR you don't | 30 | |
| zhh | Lemur XOR | 40 | |
| mayfly | Size and Basis | 15 | |
| Adekunle | Extended GCD | 20 | |
| yourmomhacked | Round Keys | 20 | |
| zhh | Network Attacks | 5 | |
| crypto_saka_hack | Pad Thai | 80 | |
| tackmin1204 | Structure of AES | 15 | |
| mayfly | Token Appreciation | 5 | |
| mayfly | JWT Sessions | 10 | |
| The_cryptic | Adrien's Signs | 80 | |
| skinnylegend711 | SSH Keys | 35 | |
| Adekunle | Greatest Common Divisor | 15 | |
| Thomas7249 | Great Snakes | 3 | |
| s1340175 | Greatest Common Divisor | 15 | |
| yuna78125 | Hex | 5 | |
| didatgi | Legendre Symbol | 35 | |
| is23lame | Extended GCD | 20 | |
| mayfly | Jack's Birthday Confusion | 30 | |
| mayfly | Jack's Birthday Hash | 20 | |
| Bohnenman | Quadratic Residues | 25 | |
| Cruzz | Network Attacks | 5 | |
| the_amntl | Resisting Bruteforce | 10 | |
| the_amntl | Keyed Permutations | 5 | |
| 4AAA4 | Everything is Big | 70 | |
| 1tsRyd3r | Too Many Errors | 100 | |
| Cruzz | Great Snakes | 3 | |
| tackmin1204 | Resisting Bruteforce | 10 | |
| kuclux | Logon Zero | 80 | |
| kuclux | Pad Thai | 80 | |
| tehreemiqbal | Modular Exponentiation | 10 | |
| MajorChrysalis | XOR Starter | 10 | |
| Cruzz | Finding Flags | 2 | |
| the_amntl | Transparency | 50 | |
| tackmin1204 | Keyed Permutations | 5 | |
| mayfly | Efficient Exchange | 50 | |
| OttaC | Favourite byte | 20 | |
| PSI_FireGamma | Size and Basis | 15 |
You are now level Current level