| Date | User | Challenge | Score |
| siriusraven | Montgomery's Ladder | 40 | |
| 0xs1nr | Paper Plane | 120 | |
| HighestClimber | Computing Shared Secrets | 30 | |
| Ha4ry22341 | Modular Inverting | 25 | |
| evantampa129 | Structure of AES | 15 | |
| PositiveRedox | Hex | 5 | |
| Danonek | You either know, XOR you don't | 30 | |
| PositiveRedox | ASCII | 5 | |
| PositiveRedox | Great Snakes | 3 | |
| Ha4ry22341 | Modular Arithmetic 2 | 20 | |
| PositiveRedox | Finding Flags | 2 | |
| rhaemarl | Finding Flags | 2 | |
| astronic | Bytes and Big Integers | 10 | |
| alinaciu | ASCII | 5 | |
| feynhat | Bringing It All Together | 50 | |
| astronic | Network Attacks | 5 | |
| Danonek | Favourite byte | 20 | |
| larifari | Proofs of Knowledge | 20 | |
| alinaciu | Great Snakes | 3 | |
| __incog__ | Adrien's Signs | 80 | |
| Guzlyach | Structure of AES | 15 | |
| alinaciu | Finding Flags | 2 | |
| Mr_British | Great Snakes | 3 | |
| Arioche | Great Snakes | 3 | |
| Mr_British | Finding Flags | 2 | |
| Danonek | XOR Properties | 15 | |
| Arioche | Finding Flags | 2 | |
| denz | Base64 | 10 | |
| TryH4rder | Legendre Symbol | 35 | |
| dirmanyfer | Legendre Symbol | 35 | |
| denz | Hex | 5 | |
| ThinkInTheBox | Ellipse Curve Cryptography | 125 | |
| b1b00www | Ellipse Curve Cryptography | 125 | |
| demr | Static Client | 100 | |
| thisnello | Micro Transmissions | 120 | |
| larifari | ZKP Introduction | 5 | |
| denz | ASCII | 5 | |
| larifari | Network Attacks | 5 | |
| cryptic_ | Base64 | 10 | |
| Samigo | Export-grade | 100 | |
| Mai47 | Dancing Queen | 120 | |
| aydinchik_827 | ASCII | 5 | |
| cryptic_ | Hex | 5 | |
| JacobLu3141 | Bean Counter | 60 | |
| lingling | Find the Lattice | 100 | |
| crypto_07 | ASCII | 5 | |
| aydinchik_827 | Network Attacks | 5 | |
| MrBurns43 | XOR Properties | 15 | |
| StackGlit | Great Snakes | 3 | |
| aydinchik_827 | Great Snakes | 3 |
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