| Date | User | Challenge | Score |
| sveta_shumovai | Blinding Light | 120 | |
| silder | Modes of Operation Starter | 15 | |
| aaronnofrail | Hex | 5 | |
| elgasing | Modular Arithmetic 1 | 20 | |
| dorazi | ASCII | 5 | |
| aaronnofrail | ASCII | 5 | |
| aaronnofrail | Great Snakes | 3 | |
| aaronnofrail | Finding Flags | 2 | |
| archlinux | XOR Properties | 15 | |
| Docredstein | Crossed Wires | 100 | |
| AESpider | Two Isogenies | 30 | |
| Blackgreen | Favourite byte | 20 | |
| faroukn | Greatest Common Divisor | 15 | |
| tode | Greatest Common Divisor | 15 | |
| gifuzzz | Resisting Bruteforce | 10 | |
| faroukn | You either know, XOR you don't | 30 | |
| trcmaster | Modulus Inutilis | 50 | |
| trcmaster | Salty | 20 | |
| trcmaster | Manyprime | 40 | |
| faroukn | Favourite byte | 20 | |
| faroukn | XOR Properties | 15 | |
| Docredstein | Salty | 20 | |
| zineb | Great Snakes | 3 | |
| Docredstein | Modulus Inutilis | 50 | |
| Blackgreen | XOR Properties | 15 | |
| faroukn | XOR Starter | 10 | |
| zineb | Finding Flags | 2 | |
| StarGazer07 | Quadratic Residues | 25 | |
| rahasyamanava | XOR Properties | 15 | |
| faroukn | Bytes and Big Integers | 10 | |
| faroukn | Base64 | 10 | |
| nullex | Working with Fields | 10 | |
| Blackgreen | XOR Starter | 10 | |
| cordana | XOR Properties | 15 | |
| StarGazer07 | Modular Inverting | 25 | |
| Noano2015 | Too Honest | 50 | |
| faroukn | Hex | 5 | |
| faroukn | ASCII | 5 | |
| faroukn | Great Snakes | 3 | |
| faroukn | Finding Flags | 2 | |
| gifuzzz | Keyed Permutations | 5 | |
| Blackgreen | Bytes and Big Integers | 10 | |
| archlinux | XOR Starter | 10 | |
| Mandom | Modular Inverting | 25 | |
| Blackgreen | Base64 | 10 | |
| NiceTryNT | Base64 | 10 | |
| gifuzzz | Blinding Light | 120 | |
| trcmaster | Monoprime | 30 | |
| cordana | XOR Starter | 10 | |
| JustAUsername | Greatest Common Divisor | 15 |
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