| Date | User | Challenge | Score |
| chnoeli | Secure Protocols | 5 | |
| gasmer | Secure Protocols | 5 | |
| vbao | XOR Properties | 15 | |
| chocopoco | You either know, XOR you don't | 30 | |
| Charicha56 | Network Attacks | 5 | |
| wind | You either know, XOR you don't | 30 | |
| akselsw | Ron was Wrong, Whit is Right | 90 | |
| chocopoco | Great Snakes | 3 | |
| kalmo11 | Finding Flags | 2 | |
| m4n059 | The Good, The Pad, The Ugly | 100 | |
| chocopoco | Finding Flags | 2 | |
| salouad | Finding Flags | 2 | |
| UGOTTHEBIGL | MD0 | 80 | |
| rito_sand | You either know, XOR you don't | 30 | |
| Dash_181 | XOR Properties | 15 | |
| Erch | You either know, XOR you don't | 30 | |
| liuyun | You either know, XOR you don't | 30 | |
| liuyun | Favourite byte | 20 | |
| ixerphic | Modular Square Root | 35 | |
| ox1bx | Prime and Prejudice | 200 | |
| rito_sand | Favourite byte | 20 | |
| wkm015 | Hex | 5 | |
| wkm015 | ASCII | 5 | |
| Erch | Favourite byte | 20 | |
| wkm015 | Network Attacks | 5 | |
| rito_sand | XOR Properties | 15 | |
| OrestisL | Salty | 20 | |
| wkm015 | Great Snakes | 3 | |
| Miruale | XOR Starter | 10 | |
| wkm015 | Finding Flags | 2 | |
| MrNught | Modular Inverting | 25 | |
| phomai739391 | Greatest Common Divisor | 15 | |
| altostratuss | Finding Flags | 2 | |
| Miruale | Bytes and Big Integers | 10 | |
| phomai739391 | You either know, XOR you don't | 30 | |
| Miruale | Base64 | 10 | |
| FieryBanana101 | Image Point Arithmetic | 30 | |
| MrNught | Modular Arithmetic 2 | 20 | |
| Miruale | Hex | 5 | |
| Miruale | ASCII | 5 | |
| Miruale | Network Attacks | 5 | |
| Miruale | Great Snakes | 3 | |
| MrNught | Modular Arithmetic 1 | 20 | |
| Miruale | Finding Flags | 2 | |
| Seasonss | Network Attacks | 5 | |
| FieryBanana101 | Where's the Supersingular Curve | 25 | |
| niebto | ASCII | 5 | |
| MrNught | Extended GCD | 20 | |
| meow_cat | Bytes and Big Integers | 10 | |
| niebto | Great Snakes | 3 |
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