| Date | User | Challenge | Score |
| gliborio | You either know, XOR you don't | 30 | |
| pancake366 | Quadratic Residues | 25 | |
| pancake366 | Modular Inverting | 25 | |
| RoninKJ | Passwords as Keys | 50 | |
| pancake366 | Modular Arithmetic 2 | 20 | |
| pancake366 | Modular Arithmetic 1 | 20 | |
| 25521051 | Structure of AES | 15 | |
| pancake366 | Extended GCD | 20 | |
| pancake366 | Greatest Common Divisor | 15 | |
| jiojio | Point Addition | 30 | |
| Medeusa | Invariant | 250 | |
| Medeusa | Mixed Up | 120 | |
| Medeusa | MD0 | 80 | |
| Medeusa | No Difference | 175 | |
| Medeusa | PriMeD5 | 100 | |
| Medeusa | Hash Stuffing | 50 | |
| Medeusa | Collider | 50 | |
| Medeusa | Jack's Birthday Confusion | 30 | |
| Medeusa | Jack's Birthday Hash | 20 | |
| Medeusa | ProSign 3 | 100 | |
| Medeusa | Curveball | 100 | |
| Medeusa | Moving Problems | 150 | |
| Medeusa | Smooth Criminal | 60 | |
| Medeusa | Montgomery's Ladder | 40 | |
| Medeusa | Efficient Exchange | 50 | |
| Medeusa | Curves and Logs | 40 | |
| Medeusa | Scalar Multiplication | 35 | |
| Medeusa | Point Addition | 30 | |
| Medeusa | Point Negation | 10 | |
| Medeusa | Background Reading | 5 | |
| gliborio | Favourite byte | 20 | |
| ANDY_NOAH | Modular Inverting | 25 | |
| gliborio | XOR Properties | 15 | |
| jiojio | Point Negation | 10 | |
| ANDY_NOAH | Modular Arithmetic 2 | 20 | |
| gliborio | XOR Starter | 10 | |
| ANDY_NOAH | Modular Arithmetic 1 | 20 | |
| muaz | Finding Flags | 2 | |
| 25521051 | Resisting Bruteforce | 10 | |
| gliborio | Bytes and Big Integers | 10 | |
| 25521051 | Keyed Permutations | 5 | |
| sunflower123 | XOR Properties | 15 | |
| gliborio | Base64 | 10 | |
| gliborio | Hex | 5 | |
| gliborio | ASCII | 5 | |
| SaborioA | Bean Counter | 60 | |
| SaborioA | Symmetry | 50 | |
| SaborioA | Flipping Cookie | 60 | |
| SaborioA | ECB CBC WTF | 55 | |
| Fluffy | Resisting Bruteforce | 10 |
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