| Date | User | Challenge | Score |
| Pixel_mainer | Base64 | 10 | |
| ShahdElrawy | Bytes and Big Integers | 10 | |
| AyanokojiKiyota | ASCII | 5 | |
| Pixel_mainer | Hex | 5 | |
| AyanokojiKiyota | Great Snakes | 3 | |
| Pixel_mainer | ASCII | 5 | |
| AyanokojiKiyota | Finding Flags | 2 | |
| Pixel_mainer | Great Snakes | 3 | |
| KRyptonZ | LWE Background | 5 | |
| Pixel_mainer | Finding Flags | 2 | |
| siriusraven | Ellipse Curve Cryptography | 125 | |
| crowcell | Working with Fields | 10 | |
| gigisoave | Extended GCD | 20 | |
| ShahdElrawy | Base64 | 10 | |
| mfay1999 | Quadratic Residues | 25 | |
| ShahdElrawy | Hex | 5 | |
| achoooo | Quadratic Residues | 25 | |
| IMPOSTER123 | Background Reading | 5 | |
| ShahdElrawy | ASCII | 5 | |
| battos | You either know, XOR you don't | 30 | |
| BarredOwl | Extended GCD | 20 | |
| Santsy | Gram Schmidt | 30 | |
| Santsy | Vectors | 10 | |
| n30nx | Marin's Secrets | 50 | |
| battos | Favourite byte | 20 | |
| MrBead | Network Attacks | 5 | |
| crowcell | Modulus Inutilis | 50 | |
| grootsec | Keyed Permutations | 5 | |
| battos | XOR Properties | 15 | |
| Hasini_naveesha | Network Attacks | 5 | |
| gigisoave | Greatest Common Divisor | 15 | |
| zCelestial | Network Attacks | 5 | |
| Lolgams | ASCII | 5 | |
| LeoMin | Network Attacks | 5 | |
| crowcell | Salty | 20 | |
| Samigo | Bringing It All Together | 50 | |
| Lolgams | Great Snakes | 3 | |
| MrBead | You either know, XOR you don't | 30 | |
| grootsec | Favourite byte | 20 | |
| mfay1999 | Modular Inverting | 25 | |
| Lolgams | Finding Flags | 2 | |
| grootsec | You either know, XOR you don't | 30 | |
| shri69 | XOR Starter | 10 | |
| 0xEMNA | Base64 | 10 | |
| Fatiimaaa | Finding Flags | 2 | |
| MrBead | Favourite byte | 20 | |
| MrBead | XOR Properties | 15 | |
| NullRoot | Base64 | 10 | |
| QiwDev | Hex | 5 | |
| hossainvai96322 | Finding Flags | 2 |
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