| Date | User | Challenge | Score |
| Guraja | Network Attacks | 5 | |
| kratta | Quadratic Residues | 25 | |
| V1ckey | Parameter Injection | 60 | |
| jd3boots | XOR Properties | 15 | |
| tzorba | Base64 | 10 | |
| maousi | ECB Oracle | 60 | |
| tzorba | Hex | 5 | |
| tzorba | ASCII | 5 | |
| tzorba | Great Snakes | 3 | |
| tzorba | Finding Flags | 2 | |
| kratta | Modular Inverting | 25 | |
| ouelons13 | ASCII | 5 | |
| jmusic | RSA Signatures | 25 | |
| ClockSeller | Extended GCD | 20 | |
| ouelons13 | Great Snakes | 3 | |
| junjunzi_ | Finding Flags | 2 | |
| fons | Hex | 5 | |
| ouelons13 | Finding Flags | 2 | |
| dolphinned | Bringing It All Together | 50 | |
| kratta | Modular Arithmetic 2 | 20 | |
| dolphinned | Diffusion through Permutation | 30 | |
| hell0 | Base64 | 10 | |
| hell0 | Hex | 5 | |
| aliceAndBob | Mister Saplins The Prover | 125 | |
| hell0 | ASCII | 5 | |
| kratta | Modular Arithmetic 1 | 20 | |
| fons | ASCII | 5 | |
| fons | Great Snakes | 3 | |
| mypalpal | Logon Zero | 80 | |
| devils_broker | Greatest Common Divisor | 15 | |
| Jayesh_parker | ASCII | 5 | |
| ClockSeller | Greatest Common Divisor | 15 | |
| Jayesh_parker | Great Snakes | 3 | |
| kratta | Extended GCD | 20 | |
| Jayesh_parker | Finding Flags | 2 | |
| P4mp3lla | Finding Flags | 2 | |
| LittleHacker | Adrien's Signs | 80 | |
| Asterix22 | Parameter Injection | 60 | |
| tieum | Resisting Bruteforce | 10 | |
| ClockSeller | Lemur XOR | 40 | |
| hell0 | Great Snakes | 3 | |
| hell0 | Finding Flags | 2 | |
| nurr | Finding Flags | 2 | |
| de4rm | Network Attacks | 5 | |
| spatino | Lazy CBC | 60 | |
| tieum | Keyed Permutations | 5 | |
| neelchh | Diffusion through Permutation | 30 | |
| RecursiveCo | Quadratic Residues | 25 | |
| em2294 | Modes of Operation Starter | 15 | |
| RecursiveCo | Modular Inverting | 25 |
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