| Date | User | Challenge | Score |
| minhtuanpro | Bytes and Big Integers | 10 | |
| dsfgfdgfdgfdgfdg | Finding Flags | 2 | |
| picofault | Resisting Bruteforce | 10 | |
| sinibida | Logon Zero | 80 | |
| martigo | Bringing It All Together | 50 | |
| issoctf | Modular Arithmetic 2 | 20 | |
| picofault | Keyed Permutations | 5 | |
| picofault | Finding Flags | 2 | |
| BADWARE | Encoding Challenge | 40 | |
| graceytingg | Finding Flags | 2 | |
| huyn1234 | Encoding Challenge | 40 | |
| issoctf | Modular Arithmetic 1 | 20 | |
| BADWARE | Network Attacks | 5 | |
| BADWARE | Let's Decrypt | 80 | |
| mteslapqc | Finding Flags | 2 | |
| M25 | You either know, XOR you don't | 30 | |
| issoctf | Greatest Common Divisor | 15 | |
| ei15951 | Export-grade | 100 | |
| BADWARE | Signing Server | 60 | |
| Skypace | Diffusion through Permutation | 30 | |
| huyn1234 | Bytes and Big Integers | 10 | |
| ali2241 | Extended GCD | 20 | |
| kate254556ttt | Base64 | 10 | |
| kate254556ttt | Hex | 5 | |
| ali2241 | Greatest Common Divisor | 15 | |
| kate254556ttt | ASCII | 5 | |
| huyn1234 | Base64 | 10 | |
| daivdhack123 | Base64 | 10 | |
| Totoro29 | Favourite byte | 20 | |
| martigo | Diffusion through Permutation | 30 | |
| NiuBi | Passwords as Keys | 50 | |
| kate254556ttt | Great Snakes | 3 | |
| jamshedkhosa_57 | ASCII | 5 | |
| Totoro29 | XOR Properties | 15 | |
| balaje_16 | Modular Arithmetic 2 | 20 | |
| balaje_16 | Modular Arithmetic 1 | 20 | |
| balaje_16 | Extended GCD | 20 | |
| Quytiunhm | Greatest Common Divisor | 15 | |
| Lulda | ASCII | 5 | |
| JarvisChinazovic | Modular Inverting | 25 | |
| JarvisChinazovic | Modular Arithmetic 2 | 20 | |
| Svilko_06 | Base64 | 10 | |
| JarvisChinazovic | Modular Arithmetic 1 | 20 | |
| djy0806 | Great Snakes | 3 | |
| kate254556ttt | Finding Flags | 2 | |
| djy0806 | Finding Flags | 2 | |
| Lulda | Great Snakes | 3 | |
| Lulda | Finding Flags | 2 | |
| Totoro29 | XOR Starter | 10 | |
| Aloiid | Finding Flags | 2 |
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