| Date | User | Challenge | Score |
| kevin21 | Modular Inverting | 25 | |
| anagharamadas | XOR Starter | 10 | |
| apollyon05 | You either know, XOR you don't | 30 | |
| kevin21 | Modular Arithmetic 2 | 20 | |
| apollyon05 | Favourite byte | 20 | |
| peachcha | Base64 | 10 | |
| apollyon05 | XOR Properties | 15 | |
| SimplifyTy | Base64 | 10 | |
| kevin21 | Modular Arithmetic 1 | 20 | |
| Gidra | Great Snakes | 3 | |
| SimplifyTy | Hex | 5 | |
| y0dam4n | Broken RSA | 100 | |
| sudd | Finding Flags | 2 | |
| apollyon05 | XOR Starter | 10 | |
| zhoujiekilll | Bytes and Big Integers | 10 | |
| Volsogin | Greatest Common Divisor | 15 | |
| apollyon05 | Bytes and Big Integers | 10 | |
| kiddo99999 | Finding Flags | 2 | |
| CYDF1121 | Additive | 70 | |
| tekrrais | RSA Decryption | 20 | |
| tekrrais | Private Keys | 20 | |
| tekrrais | Euler's Totient | 20 | |
| tekrrais | Public Keys | 15 | |
| Mahathi | Base64 | 10 | |
| cyber_selva | Bytes and Big Integers | 10 | |
| Mahathi | Hex | 5 | |
| Lv1xx_ | Keyed Permutations | 5 | |
| Mahathi | ASCII | 5 | |
| sarthak007 | Modular Exponentiation | 10 | |
| Mahathi | Great Snakes | 3 | |
| Mahathi | Finding Flags | 2 | |
| GloomySZX | Hex | 5 | |
| oltajaas | Jack's Birthday Hash | 20 | |
| sarthak007 | Modular Arithmetic 1 | 20 | |
| oltajaas | Public Keys | 15 | |
| oltajaas | Modular Exponentiation | 10 | |
| apollyon05 | Base64 | 10 | |
| sarthak007 | Greatest Common Divisor | 15 | |
| oltajaas | Resisting Bruteforce | 10 | |
| Adeline2Adeline | Great Snakes | 3 | |
| oltajaas | Keyed Permutations | 5 | |
| Adeline2Adeline | Finding Flags | 2 | |
| SpongeBob369 | RSA Signatures | 25 | |
| oltajaas | Base64 | 10 | |
| chikarizz | Great Snakes | 3 | |
| chikarizz | Finding Flags | 2 | |
| apollyon05 | Hex | 5 | |
| kakkinu | Finding Flags | 2 | |
| apollyon05 | ASCII | 5 | |
| oltajaas | Hex | 5 |
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