| Date | User | Challenge | Score |
| s1xs6d | Bytes and Big Integers | 10 | |
| MoBeaR | Hex | 5 | |
| UnrealMonkey | Transparency | 50 | |
| ziadmazen | Base64 | 10 | |
| MoBeaR | ASCII | 5 | |
| HKad44 | Modular Binomials | 80 | |
| ngawipride67 | ASCII | 5 | |
| MoBeaR | Great Snakes | 3 | |
| HKad44 | Adrien's Signs | 80 | |
| MoBeaR | Finding Flags | 2 | |
| s1xs6d | Base64 | 10 | |
| LBN789 | RSA Signatures | 25 | |
| ghovhann | Adrien's Signs | 80 | |
| AAAGreg | Bytes and Big Integers | 10 | |
| HKad44 | Chinese Remainder Theorem | 40 | |
| martinezmajturas | Lemur XOR | 40 | |
| HKad44 | Modular Square Root | 35 | |
| ziadmazen | Hex | 5 | |
| s1xs6d | Hex | 5 | |
| pppp | Marin's Secrets | 50 | |
| UnrealMonkey | SSH Keys | 35 | |
| HKad44 | Legendre Symbol | 35 | |
| ngawipride67 | Great Snakes | 3 | |
| Alessio03 | Bytes and Big Integers | 10 | |
| s1xs6d | ASCII | 5 | |
| jmusic | Bringing It All Together | 50 | |
| ziadmazen | ASCII | 5 | |
| UnrealMonkey | CERTainly not | 30 | |
| s1xs6d | Great Snakes | 3 | |
| s1xs6d | Finding Flags | 2 | |
| AAAGreg | Base64 | 10 | |
| ziadmazen | Great Snakes | 3 | |
| zosef | Finding Flags | 2 | |
| UnrealMonkey | Privacy-Enhanced Mail? | 25 | |
| sherlockyyy | Great Snakes | 3 | |
| huei | Lemur XOR | 40 | |
| yhx | XOR Starter | 10 | |
| SypherZ | Extended GCD | 20 | |
| huei | Encoding Challenge | 40 | |
| sherlockyyy | Finding Flags | 2 | |
| Xx_THELegend_xX | Everything is Big | 70 | |
| HKad44 | Quadratic Residues | 25 | |
| UnrealMonkey | Modular Inverting | 25 | |
| m4n059 | Diffusion through Permutation | 30 | |
| HKad44 | Modular Inverting | 25 | |
| PentoLucia | Extended GCD | 20 | |
| pppp | Infinite Descent | 50 | |
| HKad44 | Modular Arithmetic 2 | 20 | |
| Dhakad | Bytes and Big Integers | 10 | |
| desa_05 | ECB CBC WTF | 55 |
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