| Date | User | Challenge | Score |
| junyouzin4209 | d-phi-enc (HackTM CTF) | 0 | |
| junyouzin4209 | broken oracle (HackTM CTF) | 0 | |
| junyouzin4209 | GLP420 (HackTM CTF) | 0 | |
| junyouzin4209 | Twist and shout (ECSC 2023 (Norway)) | 0 | |
| junyouzin4209 | Tough decisions (ECSC 2023 (Norway)) | 0 | |
| nguyentrung | Bytes and Big Integers | 10 | |
| junyouzin4209 | RRSSAA (ECSC 2023 (Norway)) | 0 | |
| junyouzin4209 | Put a ring on it (ECSC 2023 (Norway)) | 0 | |
| junyouzin4209 | Irish flan (ECSC 2023 (Norway)) | 0 | |
| junyouzin4209 | Hide and seek (ECSC 2023 (Norway)) | 0 | |
| mguranovic | Bytes and Big Integers | 10 | |
| nicolejanedelro | Everything is Still Big | 100 | |
| artsog | Greatest Common Divisor | 15 | |
| nguyentrung | Base64 | 10 | |
| CarltonSam | ASCII | 5 | |
| nguyentrung | Hex | 5 | |
| anon293847293847 | Extended GCD | 20 | |
| nguyentrung | ASCII | 5 | |
| nicolejanedelro | RSA Signatures | 25 | |
| hata | Unencryptable | 125 | |
| nicolejanedelro | RSA Decryption | 20 | |
| nicolejanedelro | Private Keys | 20 | |
| nguyentrung | Great Snakes | 3 | |
| Hullaah | Bytes and Big Integers | 10 | |
| nicolejanedelro | Euler's Totient | 20 | |
| nicolejanedelro | Public Keys | 15 | |
| nicolejanedelro | Modular Exponentiation | 10 | |
| Lilerick | Collider | 50 | |
| donatsell | Modular Arithmetic 2 | 20 | |
| nguyentrung | Finding Flags | 2 | |
| Lilerick | Jack's Birthday Confusion | 30 | |
| Lilerick | Jack's Birthday Hash | 20 | |
| zetelen | Flipping Cookie | 60 | |
| donatsell | Modular Arithmetic 1 | 20 | |
| Hullaah | Base64 | 10 | |
| donatsell | Extended GCD | 20 | |
| TheJason1 | Finding Flags | 2 | |
| donatsell | Greatest Common Divisor | 15 | |
| vty24680 | Bytes and Big Integers | 10 | |
| Pantine | Token Appreciation | 5 | |
| zetelen | ECB CBC WTF | 55 | |
| Dar1us | Quadratic Residues | 25 | |
| choi1234 | Modular Square Root | 35 | |
| salah_123 | Base64 | 10 | |
| Jovice | Great Snakes | 3 | |
| Jovice | Finding Flags | 2 | |
| choi1234 | Legendre Symbol | 35 | |
| salah_123 | Inferius Prime | 30 | |
| kurgan | You either know, XOR you don't | 30 | |
| salah_123 | Factoring | 15 |
You are now level Current level