| Date | User | Challenge | Score |
| caledt | Modular Square Root | 35 | |
| Dipalisnapadilah | Hex | 5 | |
| GingerCarrot | Missing Modulus | 80 | |
| DaarK_XENOS | XOR Properties | 15 | |
| SARAH2 | Favourite byte | 20 | |
| SARAH2 | XOR Properties | 15 | |
| DaarK_XENOS | XOR Starter | 10 | |
| Jerbear3256 | Bean Counter | 60 | |
| thunremmoni | Modes of Operation Starter | 15 | |
| DaarK_XENOS | Bytes and Big Integers | 10 | |
| hakka52 | Everything is Still Big | 100 | |
| yr81 | Oh SNAP | 120 | |
| DaarK_XENOS | Base64 | 10 | |
| rottate | Finding Flags | 2 | |
| DaarK_XENOS | Hex | 5 | |
| DaarK_XENOS | ASCII | 5 | |
| LKey1235813 | ASCII | 5 | |
| DaarK_XENOS | Great Snakes | 3 | |
| arctic219 | Monoprime | 30 | |
| panman4040 | Greatest Common Divisor | 15 | |
| DaarK_XENOS | Finding Flags | 2 | |
| TiaraCitraL | Network Attacks | 5 | |
| arctic219 | Factoring | 15 | |
| SARAH2 | XOR Starter | 10 | |
| arctic219 | RSA Signatures | 25 | |
| arctic219 | RSA Decryption | 20 | |
| arctic219 | Private Keys | 20 | |
| arctic219 | Euler's Totient | 20 | |
| MuhammadTIB | Network Attacks | 5 | |
| arctic219 | Public Keys | 15 | |
| SARAH2 | Bytes and Big Integers | 10 | |
| arctic219 | Modular Exponentiation | 10 | |
| Musaasii | Network Attacks | 5 | |
| donatsell | Moving Problems | 150 | |
| henzarafaello | XOR Properties | 15 | |
| SARAH2 | Base64 | 10 | |
| SARAH2 | Hex | 5 | |
| Wijaya | ASCII | 5 | |
| arctic219 | Modular Binomials | 80 | |
| SARAH2 | ASCII | 5 | |
| GilOrtiz188 | Finding Flags | 2 | |
| hakka52 | Crossed Wires | 100 | |
| Wijaya | Network Attacks | 5 | |
| TiaraCitraL | Great Snakes | 3 | |
| SARAH2 | Great Snakes | 3 | |
| arctic219 | Adrien's Signs | 80 | |
| TiaraCitraL | Finding Flags | 2 | |
| SARAH2 | Finding Flags | 2 | |
| arctic219 | Chinese Remainder Theorem | 40 | |
| arctic219 | Modular Square Root | 35 |
You are now level Current level