| Date | User | Challenge | Score |
| Tryffel | Modular Square Root | 35 | |
| 0xs1nr | ECB CBC WTF | 55 | |
| P3ekaboo | Point Negation | 10 | |
| Tryffel | Legendre Symbol | 35 | |
| joaonasc | Great Snakes | 3 | |
| joaonasc | Finding Flags | 2 | |
| Dyner | Greatest Common Divisor | 15 | |
| ADfsf | Greatest Common Divisor | 15 | |
| shynnevilla | Missing Modulus | 80 | |
| Rander | Bytes and Big Integers | 10 | |
| priyanshoon | Modular Inverting | 25 | |
| kiseia | Oracular Spectacular | 150 | |
| Rander | Base64 | 10 | |
| FRUURJV | Finding Flags | 2 | |
| Rander | Hex | 5 | |
| Rander | ASCII | 5 | |
| AkitsuHolmes | Extended GCD | 20 | |
| AkitsuHolmes | Greatest Common Divisor | 15 | |
| luwofi | The Good, The Pad, The Ugly | 100 | |
| Z3U55 | Vote for Pedro | 150 | |
| UMAyuma | Montgomery's Ladder | 40 | |
| dachDelat | XOR Starter | 10 | |
| zprhvfbspunnhu | Modular Square Root | 35 | |
| AkitsuHolmes | You either know, XOR you don't | 30 | |
| luwofi | Pad Thai | 80 | |
| zprhvfbspunnhu | Quadratic Residues | 25 | |
| dachDelat | Bytes and Big Integers | 10 | |
| zprhvfbspunnhu | Keyed Permutations | 5 | |
| hammerbro4567 | ECB Oracle | 60 | |
| virginicquez | Bytes and Big Integers | 10 | |
| circular | XOR Starter | 10 | |
| circular | Bytes and Big Integers | 10 | |
| virginicquez | Base64 | 10 | |
| kiseia | Beatboxer | 150 | |
| PERSON | Base64 | 10 | |
| kiseia | Oh SNAP | 120 | |
| virginicquez | Hex | 5 | |
| 4kg_p4bl0 | XOR Starter | 10 | |
| PERSON | Hex | 5 | |
| PERSON | ASCII | 5 | |
| PERSON | Great Snakes | 3 | |
| PERSON | Finding Flags | 2 | |
| 4kg_p4bl0 | Bytes and Big Integers | 10 | |
| vim_diesel | Modular Binomials | 80 | |
| Z0R0 | Bytes and Big Integers | 10 | |
| 2976942164 | Lazy CBC | 60 | |
| 2976942164 | Flipping Cookie | 60 | |
| 2976942164 | ECB Oracle | 60 | |
| 4kg_p4bl0 | Base64 | 10 | |
| 2976942164 | ECB CBC WTF | 55 |
You are now level Current level