| Date | User | Challenge | Score |
| littleseal26 | Monoprime | 30 | |
| whimpity_womp | XOR Starter | 10 | |
| magda_almpani | Modular Square Root | 35 | |
| NMH_Asin | Forbidden Fruit | 150 | |
| GustavoD | SSH Keys | 35 | |
| GustavoD | CERTainly not | 30 | |
| mariotronix | Passwords as Keys | 50 | |
| whimpity_womp | Bytes and Big Integers | 10 | |
| GustavoD | Privacy-Enhanced Mail? | 25 | |
| afrdian | Scalar Multiplication | 35 | |
| littleseal26 | Factoring | 15 | |
| Faulheit | Greatest Common Divisor | 15 | |
| Kad | CERTainly not | 30 | |
| Kad | Privacy-Enhanced Mail? | 25 | |
| gaf | Great Snakes | 3 | |
| whimpity_womp | Base64 | 10 | |
| gprendi | Greatest Common Divisor | 15 | |
| leonardoLopes | Finding Flags | 2 | |
| Kad | Modular Inverting | 25 | |
| oyom | Base64 | 10 | |
| oyom | Hex | 5 | |
| magda_almpani | Legendre Symbol | 35 | |
| dj3rh0t | Square Eyes | 35 | |
| lerequin | Generators of Groups | 20 | |
| afrdian | Point Addition | 30 | |
| Kad | Modular Arithmetic 2 | 20 | |
| oyom | ASCII | 5 | |
| rubber_duck | Base64 | 10 | |
| dj3rh0t | Monoprime | 30 | |
| MishellyHerrera | Factoring | 15 | |
| Pravy | Base64 | 10 | |
| dj3rh0t | Inferius Prime | 30 | |
| Kad | Modular Arithmetic 1 | 20 | |
| Matchabowl | Broken RSA | 100 | |
| Pravy | Hex | 5 | |
| Pravy | ASCII | 5 | |
| Okit | Base64 | 10 | |
| dj3rh0t | Factoring | 15 | |
| littleseal26 | RSA Signatures | 25 | |
| Pravy | Network Attacks | 5 | |
| darkknight | XOR Starter | 10 | |
| baekminjun6 | Base64 | 10 | |
| schoin | ECB CBC WTF | 55 | |
| Kad | Extended GCD | 20 | |
| Pravy | Great Snakes | 3 | |
| piggo | Modular Inverting | 25 | |
| Pravy | Finding Flags | 2 | |
| Marco89 | Round Keys | 20 | |
| MishellyHerrera | RSA Signatures | 25 | |
| badcfe | Successive Powers | 60 |
You are now level Current level