| Date | User | Challenge | Score |
| dronningMargreth | Great Snakes | 3 | |
| KralNecmi | ASCII | 5 | |
| dronningMargreth | Finding Flags | 2 | |
| KralNecmi | Great Snakes | 3 | |
| KralNecmi | Finding Flags | 2 | |
| Katiedragon | XOR Starter | 10 | |
| Cr1ssJ | Base64 | 10 | |
| anna03 | Modular Arithmetic 1 | 20 | |
| rubenfg | ASCII | 5 | |
| khloudmohammed | Great Snakes | 3 | |
| lololololokol | XOR Starter | 10 | |
| rubenfg | Great Snakes | 3 | |
| rubenfg | Finding Flags | 2 | |
| Cr1ssJ | Hex | 5 | |
| khloudmohammed | Finding Flags | 2 | |
| ianj21josue | Base64 | 10 | |
| ianj21josue | Hex | 5 | |
| KeenanJoshua | Structure of AES | 15 | |
| ianj21josue | ASCII | 5 | |
| Kalel | Hex | 5 | |
| peglycol | Inferius Prime | 30 | |
| ianj21josue | Great Snakes | 3 | |
| Kalel | ASCII | 5 | |
| lololololokol | Encoding Challenge | 40 | |
| Akarthik16 | Modular Exponentiation | 10 | |
| ianj21josue | Finding Flags | 2 | |
| Kalel | Great Snakes | 3 | |
| taizo | Bytes and Big Integers | 10 | |
| Katiedragon | Bytes and Big Integers | 10 | |
| gKrust | XOR Starter | 10 | |
| NoiseX | Quadratic Residues | 25 | |
| anna03 | Extended GCD | 20 | |
| Mualani | You either know, XOR you don't | 30 | |
| MentalEtMuscle | XOR Starter | 10 | |
| zzzfangyuan | ASCII | 5 | |
| MentalEtMuscle | Bytes and Big Integers | 10 | |
| Prashant12 | Bringing It All Together | 50 | |
| MentalEtMuscle | Base64 | 10 | |
| Seventt | Factoring | 15 | |
| Prashant12 | Modular Inverting | 25 | |
| MentalEtMuscle | Hex | 5 | |
| Prashant12 | Modular Arithmetic 2 | 20 | |
| MentalEtMuscle | ASCII | 5 | |
| Prashant12 | Modular Arithmetic 1 | 20 | |
| Hawret | Greatest Common Divisor | 15 | |
| CarusoX | 2020 (TETCTF) | 0 | |
| MentalEtMuscle | Great Snakes | 3 | |
| Mualani | Favourite byte | 20 | |
| Prashant12 | Greatest Common Divisor | 15 | |
| nguyenmaihuyphat | Resisting Bruteforce | 10 |
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