| Date | User | Challenge | Score |
| VxRabbit | Structure of AES | 15 | |
| F4lk3 | Diffusion through Permutation | 30 | |
| Mayank_V | Hex | 5 | |
| SpilledBeans | Honest Verifier Zero Knowledge | 30 | |
| F4lk3 | Confusion through Substitution | 25 | |
| Mayank_V | ASCII | 5 | |
| OsujiWesley | Bytes and Big Integers | 10 | |
| gbean00 | Hex | 5 | |
| Amro_Hussein | Bespoke Padding | 100 | |
| gbean00 | ASCII | 5 | |
| Juanjo_LG | ASCII | 5 | |
| julsk | Great Snakes | 3 | |
| Khola | Legendre Symbol | 35 | |
| Muhammetali | Bytes and Big Integers | 10 | |
| gbean00 | Great Snakes | 3 | |
| OsujiWesley | Base64 | 10 | |
| muqqi | You either know, XOR you don't | 30 | |
| gbean00 | Finding Flags | 2 | |
| julsk | Finding Flags | 2 | |
| eysiiiii | Saying Hello | 20 | |
| mmihov | Passwords as Keys | 50 | |
| Juanjo_LG | Great Snakes | 3 | |
| v1ct1g3r | Encoding Challenge | 40 | |
| OsujiWesley | Hex | 5 | |
| jojo2504 | Encoding Challenge | 40 | |
| Kad | Logon Zero | 80 | |
| Slavonishe | Adrien's Signs | 80 | |
| eysi | Saying Hello | 20 | |
| LemonnadeUwU | Bytes and Big Integers | 10 | |
| F4lk3 | Round Keys | 20 | |
| mmihov | Modes of Operation Starter | 15 | |
| Slavonishe | Chinese Remainder Theorem | 40 | |
| OsujiWesley | ASCII | 5 | |
| muqqi | Favourite byte | 20 | |
| mmihov | Bringing It All Together | 50 | |
| FieryBanana101 | Bad Temper 2 | 150 | |
| kekko0code | Finding Flags | 2 | |
| Lee20270 | XOR Starter | 10 | |
| F4lk3 | Structure of AES | 15 | |
| skimmer | Generators of Groups | 20 | |
| tieuchocute | ECB CBC WTF | 55 | |
| Muhammetali | Base64 | 10 | |
| mmihov | Diffusion through Permutation | 30 | |
| mrdavidson23 | Great Snakes | 3 | |
| vstav | Adrien's Signs | 80 | |
| Andrade | Favourite byte | 20 | |
| mrdavidson23 | Finding Flags | 2 | |
| Abhi989 | You either know, XOR you don't | 30 | |
| jojo2504 | Modular Inverting | 25 | |
| LemonnadeUwU | Base64 | 10 |
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