| Date | User | Challenge | Score |
| oussamahc | Great Snakes | 3 | |
| kanellam | You either know, XOR you don't | 30 | |
| oussamahc | Finding Flags | 2 | |
| s0lver | Hex | 5 | |
| Mrheisenburgers | Static Client 2 | 120 | |
| jackoha | Megalomaniac 2 | 120 | |
| Altcunningham | Base64 | 10 | |
| kanellam | Favourite byte | 20 | |
| Altcunningham | Hex | 5 | |
| xEcho1337 | Bytes and Big Integers | 10 | |
| xEcho1337 | Base64 | 10 | |
| Altcunningham | ASCII | 5 | |
| sigem | Bytes and Big Integers | 10 | |
| xEcho1337 | Hex | 5 | |
| xEcho1337 | Network Attacks | 5 | |
| Altcunningham | Great Snakes | 3 | |
| sura_btoush | ASCII | 5 | |
| xEcho1337 | ASCII | 5 | |
| xEcho1337 | Great Snakes | 3 | |
| Altcunningham | Finding Flags | 2 | |
| CYB3RFY | Modular Arithmetic 1 | 20 | |
| sura_btoush | Great Snakes | 3 | |
| rmn_bm | Network Attacks | 5 | |
| kanellam | XOR Properties | 15 | |
| sura_btoush | Finding Flags | 2 | |
| amansr01 | Modular Inverting | 25 | |
| amansr01 | Modular Arithmetic 2 | 20 | |
| canaryda | Transparency | 50 | |
| sigem | Base64 | 10 | |
| tui101 | Passwords as Keys | 50 | |
| shewitt2 | Legendre Symbol | 35 | |
| amansr01 | Modular Arithmetic 1 | 20 | |
| return42 | Bean Counter | 60 | |
| kanellam | XOR Starter | 10 | |
| amansr01 | Extended GCD | 20 | |
| gash666 | Bespoke Padding | 100 | |
| ApfelStrudel | Bespoke Padding | 100 | |
| thaggs1066 | Hash Stuffing | 50 | |
| Rahim6 | Base64 | 10 | |
| kanellam | Encoding Challenge | 40 | |
| amansr01 | Successive Powers | 60 | |
| canaryda | SSH Keys | 35 | |
| sigem | Hex | 5 | |
| Rahim6 | Hex | 5 | |
| SeifAhmed | Megalomaniac 1 | 100 | |
| MaxAzar | Modular Binomials | 80 | |
| Adrian_Rall | Greatest Common Divisor | 15 | |
| canaryda | CERTainly not | 30 | |
| Cristi72 | You either know, XOR you don't | 30 | |
| amansr01 | Greatest Common Divisor | 15 |
You are now level Current level