| Date | User | Challenge | Score |
| manumuffin | Great Snakes | 3 | |
| achu72 | Quadratic Residues | 25 | |
| gfahrab | XOR Starter | 10 | |
| Ridika_Naznin | Modular Inverting | 25 | |
| Gabin_DELAUNAY | XOR Properties | 15 | |
| manumuffin | Finding Flags | 2 | |
| centinela | Finding Flags | 2 | |
| MaxHeadrom | Bytes and Big Integers | 10 | |
| k3v1n4rsk | Favourite byte | 20 | |
| Gabin_DELAUNAY | XOR Starter | 10 | |
| gfahrab | Bytes and Big Integers | 10 | |
| Gabin_DELAUNAY | Bytes and Big Integers | 10 | |
| PAWOS | Mixed Up | 120 | |
| Gabin_DELAUNAY | Base64 | 10 | |
| vishwakumarv | Network Attacks | 5 | |
| Gabin_DELAUNAY | Hex | 5 | |
| k3v1n4rsk | XOR Properties | 15 | |
| OkMyFault | Bytes and Big Integers | 10 | |
| cryptokeep | Base64 | 10 | |
| MaxHeadrom | Base64 | 10 | |
| foxadecimal | Greatest Common Divisor | 15 | |
| RubaAlwesabi | Base64 | 10 | |
| mboh2 | Greatest Common Divisor | 15 | |
| RubaAlwesabi | Hex | 5 | |
| MaxHeadrom | Hex | 5 | |
| madelino | Smooth Criminal | 60 | |
| crystal044 | ZKP Introduction | 5 | |
| franciscoarmb | Modular Exponentiation | 10 | |
| yuliyost | Everything is Still Big | 100 | |
| gfahrab | Base64 | 10 | |
| vfsnk | Hex | 5 | |
| MaxHeadrom | ASCII | 5 | |
| lmlA | Confusion through Substitution | 25 | |
| vfsnk | ASCII | 5 | |
| MaxHeadrom | Great Snakes | 3 | |
| gfahrab | Hex | 5 | |
| Gabin_DELAUNAY | ASCII | 5 | |
| xniltropy | Favourite byte | 20 | |
| RubaAlwesabi | ASCII | 5 | |
| gfahrab | ASCII | 5 | |
| teun | Modular Inverting | 25 | |
| gfahrab | Great Snakes | 3 | |
| MaxHeadrom | Finding Flags | 2 | |
| xniltropy | XOR Properties | 15 | |
| z4r10 | Favourite byte | 20 | |
| Gabin_DELAUNAY | Great Snakes | 3 | |
| gfahrab | Finding Flags | 2 | |
| Gabin_DELAUNAY | Finding Flags | 2 | |
| Tatev | Great Snakes | 3 | |
| sveta_shumovai | A Twisted Mind | 80 |
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