| Date | User | Challenge | Score |
| larisa_panfile | ASCII | 5 | |
| MrBluescreen | Favourite byte | 20 | |
| CipherY3D | Jack's Birthday Hash | 20 | |
| MrBluescreen | XOR Properties | 15 | |
| Frida12 | Finding Flags | 2 | |
| Antonpo8 | Transparency | 50 | |
| natzz | Hex | 5 | |
| larisa_panfile | Great Snakes | 3 | |
| YSLM | Base64 | 10 | |
| djfc | Montgomery's Ladder | 40 | |
| luccafrare | Base64 | 10 | |
| 0xManaseer | Great Snakes | 3 | |
| MrBluescreen | XOR Starter | 10 | |
| Antonpo8 | SSH Keys | 35 | |
| lmb10l | XOR Starter | 10 | |
| ApexRatio | Privacy-Enhanced Mail? | 25 | |
| butcher | Confusion through Substitution | 25 | |
| djfc | Efficient Exchange | 50 | |
| djfc | Curves and Logs | 40 | |
| patrick | Merkle Trees | 25 | |
| luccafrare | Hex | 5 | |
| faster | Bytes and Big Integers | 10 | |
| djfc | Scalar Multiplication | 35 | |
| ApexRatio | Encoding Challenge | 40 | |
| djfc | Point Addition | 30 | |
| 0xRaha | SSH Keys | 35 | |
| sicklenin | ASCII | 5 | |
| luccafrare | ASCII | 5 | |
| djfc | Point Negation | 10 | |
| TyLion | Stream of Consciousness | 80 | |
| djfc | Background Reading | 5 | |
| Antonpo8 | CERTainly not | 30 | |
| Kitsuu | ASCII | 5 | |
| Philosoraptor0 | Extended GCD | 20 | |
| djfc | Export-grade | 100 | |
| luccafrare | Great Snakes | 3 | |
| UnlamG1MA | Inferius Prime | 30 | |
| Abyssalcord | Finding Flags | 2 | |
| sicklenin | Great Snakes | 3 | |
| sicklenin | Finding Flags | 2 | |
| ZeroTolerance | Greatest Common Divisor | 15 | |
| Antonpo8 | Privacy-Enhanced Mail? | 25 | |
| serg37 | ASCII | 5 | |
| luccafrare | Finding Flags | 2 | |
| djfc | Parameter Injection | 60 | |
| jagotu | Stream of Consciousness | 80 | |
| ZnS | Greatest Common Divisor | 15 | |
| ZeroTolerance | You either know, XOR you don't | 30 | |
| 0x330a | XOR Starter | 10 | |
| saif46 | ASCII | 5 |
You are now level Current level