| Date | User | Challenge | Score |
| Ankur_macha | Bringing It All Together | 50 | |
| Ankur_macha | Diffusion through Permutation | 30 | |
| Ankur_macha | Confusion through Substitution | 25 | |
| Ankur_macha | Round Keys | 20 | |
| B00177179 | Passwords as Keys | 50 | |
| Ankur_macha | Structure of AES | 15 | |
| D1kobr4z | Base64 | 10 | |
| Ankur_macha | Resisting Bruteforce | 10 | |
| Ankur_macha | Keyed Permutations | 5 | |
| MadHammer | You either know, XOR you don't | 30 | |
| D1kobr4z | Hex | 5 | |
| Ankur_macha | Modular Binomials | 80 | |
| D1kobr4z | ASCII | 5 | |
| D1kobr4z | Network Attacks | 5 | |
| ArcticWolf | Adrien's Signs | 80 | |
| D1kobr4z | Great Snakes | 3 | |
| lingling | Parameter Injection | 60 | |
| B00177179 | Modulus Inutilis | 50 | |
| D1kobr4z | Finding Flags | 2 | |
| B00177179 | Salty | 20 | |
| ra_mn | XOR Starter | 10 | |
| ArcticWolf | Chinese Remainder Theorem | 40 | |
| ArcticWolf | Modular Square Root | 35 | |
| B00177179 | Square Eyes | 35 | |
| Keerthan_V | You either know, XOR you don't | 30 | |
| George_Gkermpes | Bytes and Big Integers | 10 | |
| B00177179 | Inferius Prime | 30 | |
| ArcticWolf | Legendre Symbol | 35 | |
| piero | Finding Flags | 2 | |
| George_Gkermpes | Base64 | 10 | |
| zisis | XOR Starter | 10 | |
| kubakadlubowski | Round Keys | 20 | |
| George_Gkermpes | Hex | 5 | |
| shokhba | Great Snakes | 3 | |
| karoldus | Bean Counter | 60 | |
| George_Gkermpes | ASCII | 5 | |
| ArcticWolf | Quadratic Residues | 25 | |
| Siri | Bytes and Big Integers | 10 | |
| kubakadlubowski | Structure of AES | 15 | |
| zisis | Bytes and Big Integers | 10 | |
| shadowguy | Broken RSA | 100 | |
| George_Gkermpes | Great Snakes | 3 | |
| mfilipcz | Export-grade | 100 | |
| abraxii | Adrien's Signs | 80 | |
| ArcticWolf | Modular Inverting | 25 | |
| George_Gkermpes | Finding Flags | 2 | |
| Quark05 | Base64 | 10 | |
| rumaisaali250 | RSA Signatures | 25 | |
| ArcticWolf | Modular Arithmetic 2 | 20 | |
| kubakadlubowski | Resisting Bruteforce | 10 |
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