| Date | User | Challenge | Score |
| Musau | Chinese Remainder Theorem | 40 | |
| Musau | Modular Square Root | 35 | |
| GODFFREY | Quadratic Residues | 25 | |
| B_Memusi_Sanaet | Quadratic Residues | 25 | |
| FOXY69 | Favourite byte | 20 | |
| Musau | Legendre Symbol | 35 | |
| nnonick | You either know, XOR you don't | 30 | |
| Mohammed_obad | Network Attacks | 5 | |
| Sarobidy | Base64 | 10 | |
| ieuns | Modular Arithmetic 2 | 20 | |
| FOXY69 | XOR Properties | 15 | |
| dianziyun | Modular Arithmetic 2 | 20 | |
| JasonKamwaro | Quadratic Residues | 25 | |
| JasonKamwaro | Modular Inverting | 25 | |
| Mohammed_obad | Great Snakes | 3 | |
| JasonKamwaro | Modular Arithmetic 2 | 20 | |
| JasonKamwaro | Modular Arithmetic 1 | 20 | |
| B_Memusi_Sanaet | Modular Inverting | 25 | |
| Abeid_Azhar | Greatest Common Divisor | 15 | |
| nnonick | Favourite byte | 20 | |
| B_Memusi_Sanaet | Modular Arithmetic 2 | 20 | |
| Sarobidy | Hex | 5 | |
| Bayes | Favourite byte | 20 | |
| JasonKamwaro | Extended GCD | 20 | |
| B_Memusi_Sanaet | Modular Arithmetic 1 | 20 | |
| Musau | Quadratic Residues | 25 | |
| ar7yr | ASCII | 5 | |
| Musau | Modular Inverting | 25 | |
| KeenanJoshua | Chinese Remainder Theorem | 40 | |
| Musau | Modular Arithmetic 2 | 20 | |
| Musau | Modular Arithmetic 1 | 20 | |
| iankip | Adrien's Signs | 80 | |
| Mohammed_obad | Finding Flags | 2 | |
| Musau | Extended GCD | 20 | |
| iankip | Modular Binomials | 80 | |
| ieuns | Lemur XOR | 40 | |
| Musau | Greatest Common Divisor | 15 | |
| B_Memusi_Sanaet | Extended GCD | 20 | |
| Sarobidy | ASCII | 5 | |
| nnonick | XOR Properties | 15 | |
| Bayes | XOR Properties | 15 | |
| ieuns | Encoding Challenge | 40 | |
| ar7yr | Great Snakes | 3 | |
| Sarobidy | Great Snakes | 3 | |
| ar7yr | Finding Flags | 2 | |
| jj24 | Script Kiddie | 70 | |
| Sarobidy | Finding Flags | 2 | |
| Bayes | XOR Starter | 10 | |
| B_Memusi_Sanaet | Greatest Common Divisor | 15 | |
| KeenanJoshua | Modular Square Root | 35 |
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