| Date | User | Challenge | Score |
| liuyun | Bytes and Big Integers | 10 | |
| abdul_azeez_2153 | Great Snakes | 3 | |
| skkeem | Keyed Permutations | 5 | |
| williehen | Proofs of Knowledge | 20 | |
| nguyenmaihuyphat | Inferius Prime | 30 | |
| abdul_azeez_2153 | Finding Flags | 2 | |
| HumanHumanName | XOR Starter | 10 | |
| nguyenmaihuyphat | Privacy-Enhanced Mail? | 25 | |
| racon | Roll your Own | 125 | |
| liuyun | Base64 | 10 | |
| nguyenmaihuyphat | No Way Back Home | 100 | |
| HumanHumanName | Bytes and Big Integers | 10 | |
| balaje_16 | Greatest Common Divisor | 15 | |
| HumanHumanName | Base64 | 10 | |
| balaje_16 | You either know, XOR you don't | 30 | |
| HumanHumanName | Hex | 5 | |
| HumanHumanName | ASCII | 5 | |
| racon | Ellipse Curve Cryptography | 125 | |
| HumanHumanName | Great Snakes | 3 | |
| williehen | ZKP Introduction | 5 | |
| HumanHumanName | Finding Flags | 2 | |
| skkeem | Modular Binomials | 80 | |
| nguyenmaihuyphat | Broken RSA | 100 | |
| Altaf909 | Forbidden Fruit | 150 | |
| oneley | Greatest Common Divisor | 15 | |
| aryanguptta | Finding Flags | 2 | |
| manojk07 | Bytes and Big Integers | 10 | |
| Moracha | Modular Binomials | 80 | |
| dexter_nate27 | Cofactor Cofantasy | 150 | |
| nk_23Momanyi | Modular Binomials | 80 | |
| fanatik | Computing Shared Secrets | 30 | |
| fanatik | Computing Public Values | 25 | |
| fanatik | Generators of Groups | 20 | |
| nk_23Momanyi | Adrien's Signs | 80 | |
| nk_23Momanyi | Chinese Remainder Theorem | 40 | |
| ragunogh | Bounded Noise | 50 | |
| nk_23Momanyi | Modular Square Root | 35 | |
| Moracha | Adrien's Signs | 80 | |
| Genisys | ASCII | 5 | |
| fanatik | Working with Fields | 10 | |
| Moracha | Chinese Remainder Theorem | 40 | |
| nk_23Momanyi | Legendre Symbol | 35 | |
| Moracha | Modular Square Root | 35 | |
| skkeem | Adrien's Signs | 80 | |
| nk_23Momanyi | Quadratic Residues | 25 | |
| nashariell | Modular Arithmetic 2 | 20 | |
| nk_23Momanyi | Modular Inverting | 25 | |
| Genisys | Great Snakes | 3 | |
| Moracha | Legendre Symbol | 35 | |
| manojk07 | Base64 | 10 |
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