| Date | User | Challenge | Score |
| 19030623652 | Favourite byte | 20 | |
| sertol132 | You either know, XOR you don't | 30 | |
| 19030623652 | XOR Starter | 10 | |
| 19030623652 | Bytes and Big Integers | 10 | |
| 19030623652 | Base64 | 10 | |
| sertol132 | Favourite byte | 20 | |
| Adithya_R | Finding Flags | 2 | |
| dandi | Legendre Symbol | 35 | |
| OKlllng | Computing Shared Secrets | 30 | |
| sheina906 | JWT Secrets | 25 | |
| churchrain | Base64 | 10 | |
| jopayoki | Point Negation | 10 | |
| sheina906 | No Way JOSE | 20 | |
| Banana_Babanana | Bounded Noise | 50 | |
| churchrain | Hex | 5 | |
| churchrain | ASCII | 5 | |
| sheina906 | JWT Sessions | 10 | |
| jopayoki | Background Reading | 5 | |
| churchrain | Great Snakes | 3 | |
| churchrain | Finding Flags | 2 | |
| sheina906 | Token Appreciation | 5 | |
| ggerod | Passwords as Keys | 50 | |
| Dan1e1B | Flipping Cookie | 60 | |
| konkod123 | Encoding Challenge | 40 | |
| Banana_Babanana | Noise Free | 40 | |
| isl4r | Resisting Bruteforce | 10 | |
| Kkameleon | A True Genus | 175 | |
| Kkameleon | Bounded Noise | 50 | |
| sheina906 | Bean Counter | 60 | |
| Kkameleon | Real Curve Crypto | 200 | |
| scrt401 | Base64 | 10 | |
| ronnyl | Euler's Totient | 20 | |
| Redheadsleuth | Finding Flags | 2 | |
| ronnyl | Public Keys | 15 | |
| ali31415 | Base64 | 10 | |
| ApfelStrudel | Modulus Inutilis | 50 | |
| ARM4da | XOR Starter | 10 | |
| ali31415 | Hex | 5 | |
| scrt401 | Hex | 5 | |
| D1533 | The Matrix Revolutions | 125 | |
| ApfelStrudel | Salty | 20 | |
| ApfelStrudel | Manyprime | 40 | |
| ronnyl | Modular Exponentiation | 10 | |
| ARM4da | Bytes and Big Integers | 10 | |
| Bosog | Modular Binomials | 80 | |
| UrLastWish | Everything is Big | 70 | |
| ApfelStrudel | Square Eyes | 35 | |
| fjukh7872 | Lazy CBC | 60 | |
| Dan1e1B | Passwords as Keys | 50 | |
| ali31415 | ASCII | 5 |
You are now level Current level