| Date | User | Challenge | Score |
| tyluudinh | RSA or HMAC? Part 2 | 100 | |
| f7kumoi | Everything is Big | 70 | |
| Dcaha001 | Favourite byte | 20 | |
| Hanging_Tree | Smooth Criminal | 60 | |
| ParaIron | Quadratic Residues | 25 | |
| f7kumoi | Modulus Inutilis | 50 | |
| SpikeofLead | Finding Flags | 2 | |
| dman | Bytes and Big Integers | 10 | |
| ParaIron | Modular Inverting | 25 | |
| ForJ | Successive Powers | 60 | |
| chloexiao | ASCII | 5 | |
| ParaIron | Modular Arithmetic 2 | 20 | |
| CircularBlox | Modular Arithmetic 1 | 20 | |
| vdam | Chinese Remainder Theorem | 40 | |
| CircularBlox | Extended GCD | 20 | |
| CircularBlox | Greatest Common Divisor | 15 | |
| agentjlrmt | Manyprime | 40 | |
| CircularBlox | You either know, XOR you don't | 30 | |
| mecji | ASCII | 5 | |
| Oblivi0n | ProSign 3 | 100 | |
| mecji | Great Snakes | 3 | |
| dman | Base64 | 10 | |
| mecji | Finding Flags | 2 | |
| vdam | Modular Square Root | 35 | |
| vibehutao | Round Keys | 20 | |
| dman | Hex | 5 | |
| ventie | Base64 | 10 | |
| ventie | Hex | 5 | |
| ventie | ASCII | 5 | |
| dman | ASCII | 5 | |
| ventie | Network Attacks | 5 | |
| avm | Missing Modulus | 80 | |
| chloexiao | Great Snakes | 3 | |
| HANDC | Great Snakes | 3 | |
| ventie | Great Snakes | 3 | |
| chloexiao | Finding Flags | 2 | |
| ventie | Finding Flags | 2 | |
| CircularBlox | Favourite byte | 20 | |
| CircularBlox | XOR Properties | 15 | |
| dman | Great Snakes | 3 | |
| CircularBlox | XOR Starter | 10 | |
| dman | Finding Flags | 2 | |
| CircularBlox | Bytes and Big Integers | 10 | |
| CircularBlox | Base64 | 10 | |
| HANDC | Finding Flags | 2 | |
| CircularBlox | Hex | 5 | |
| CircularBlox | ASCII | 5 | |
| CircularBlox | Great Snakes | 3 | |
| CircularBlox | Finding Flags | 2 | |
| Oblivi0n | Curveball | 100 |
You are now level Current level