| Date | User | Challenge | Score |
| Sapphoneix | Base64 | 10 | |
| littleseal26 | Background Reading | 5 | |
| B0T_o13 | Bytes and Big Integers | 10 | |
| SavvyDevil | Hex | 5 | |
| SovietPlatypus | Base64 | 10 | |
| B0T_o13 | Base64 | 10 | |
| SavvyDevil | ASCII | 5 | |
| littleseal26 | Export-grade | 100 | |
| SovietPlatypus | Hex | 5 | |
| SovietPlatypus | ASCII | 5 | |
| pezdokril | Bytes and Big Integers | 10 | |
| Duster | ECB CBC WTF | 55 | |
| AmanitaP | Finding Flags | 2 | |
| SavvyDevil | Great Snakes | 3 | |
| gabrielebd | Greatest Common Divisor | 15 | |
| confetti244 | Base64 | 10 | |
| richmoneybank479 | XOR Starter | 10 | |
| confetti244 | Hex | 5 | |
| SavvyDevil | Finding Flags | 2 | |
| Professor_Expa | Finding Flags | 2 | |
| confetti244 | ASCII | 5 | |
| Shyamama | Great Snakes | 3 | |
| Shyamama | Finding Flags | 2 | |
| TotallyNotDash | Modular Arithmetic 1 | 20 | |
| Taras_098772 | Modular Binomials | 80 | |
| Taras_098772 | Adrien's Signs | 80 | |
| Taras_098772 | Chinese Remainder Theorem | 40 | |
| jaden | Great Snakes | 3 | |
| Taras_098772 | Modular Square Root | 35 | |
| Taras_098772 | Legendre Symbol | 35 | |
| Realm | Finding Flags | 2 | |
| jaden | Finding Flags | 2 | |
| richmoneybank479 | Bytes and Big Integers | 10 | |
| Soisina | Modular Binomials | 80 | |
| TotallyNotDash | Extended GCD | 20 | |
| Duster | ECB Oracle | 60 | |
| Anilion | Modular Binomials | 80 | |
| Anilion | Adrien's Signs | 80 | |
| Anilion | Chinese Remainder Theorem | 40 | |
| Anilion | Modular Square Root | 35 | |
| Anilion | Legendre Symbol | 35 | |
| Anilion | Quadratic Residues | 25 | |
| Anilion | Modular Inverting | 25 | |
| Anilion | Modular Arithmetic 2 | 20 | |
| Anilion | Modular Arithmetic 1 | 20 | |
| Anilion | Extended GCD | 20 | |
| Anilion | Greatest Common Divisor | 15 | |
| richmoneybank479 | Base64 | 10 | |
| Anilion | You either know, XOR you don't | 30 | |
| Anilion | Favourite byte | 20 |
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