| Date | User | Challenge | Score |
| R3d_M00n | Favourite byte | 20 | |
| mej | Jack's Birthday Hash | 20 | |
| leelelele | Great Snakes | 3 | |
| Gh0stSm0ke | Base64 | 10 | |
| Yaroman228 | Chinese Remainder Theorem | 40 | |
| Gh0stSm0ke | Hex | 5 | |
| Gh0stSm0ke | ASCII | 5 | |
| jasonbourne | Computing Public Values | 25 | |
| jasonbourne | Working with Fields | 10 | |
| SJ_07 | Finding Flags | 2 | |
| KowalskiVan | Prime and Prejudice | 200 | |
| Ryukie | Signing Server | 60 | |
| Yaroman228 | Modular Square Root | 35 | |
| mej | Background Reading | 5 | |
| Gh0stSm0ke | Great Snakes | 3 | |
| fenrosys | SIDH Key Exchange | 80 | |
| AZIZAAAAA | Great Snakes | 3 | |
| Gh0stSm0ke | Finding Flags | 2 | |
| fenrosys | Composite Isogenies | 60 | |
| AZIZAAAAA | Finding Flags | 2 | |
| fenrosys | Three Isogenies | 35 | |
| fenrosys | Two Isogenies | 30 | |
| fenrosys | DLOG on the Surface | 40 | |
| fenrosys | Montgomery Curves | 30 | |
| fenrosys | Image Point Arithmetic | 30 | |
| fenrosys | Where's the Supersingular Curve | 25 | |
| fenrosys | The j-invariant | 20 | |
| fenrosys | Introduction to Isogenies | 10 | |
| fenrosys | Nativity | 60 | |
| fenrosys | Bounded Noise | 50 | |
| useless | Privacy-Enhanced Mail? | 25 | |
| AlfredKyalo | Bean Counter | 60 | |
| roogs22 | Everything is Still Big | 100 | |
| AlfredKyalo | Symmetry | 50 | |
| Yaroman228 | Legendre Symbol | 35 | |
| AlfredKyalo | Flipping Cookie | 60 | |
| jamesleecoleman | Finding Flags | 2 | |
| yatest | ASCII | 5 | |
| Yaroman228 | Quadratic Residues | 25 | |
| AlfredKyalo | ECB CBC WTF | 55 | |
| 8last5ugar | XOR Properties | 15 | |
| luqcatrix | Base64 | 10 | |
| ahmet | Modular Inverting | 25 | |
| Yaroman228 | Modular Inverting | 25 | |
| yatest | Great Snakes | 3 | |
| yatest | Finding Flags | 2 | |
| yatest | Modular Binomials | 80 | |
| yatest | Adrien's Signs | 80 | |
| yatest | Chinese Remainder Theorem | 40 | |
| Yaroman228 | Modular Arithmetic 2 | 20 |
You are now level Current level