| Date | User | Challenge | Score |
| othmanemessaoud | Bytes and Big Integers | 10 | |
| Oberon | CSIDH Key Exchange | 90 | |
| Tlacaele1 | Quadratic Residues | 25 | |
| securial150 | ZKP Introduction | 5 | |
| MrHelpful | Base64 | 10 | |
| Oberon | Twisted CSIDH Isogenies | 70 | |
| MrHelpful | Hex | 5 | |
| othmanemessaoud | Base64 | 10 | |
| 0xa6k | XOR Starter | 10 | |
| MrHelpful | ASCII | 5 | |
| MrHelpful | Great Snakes | 3 | |
| sp1n0z4 | Bringing It All Together | 50 | |
| MrHelpful | Finding Flags | 2 | |
| SQuidled | Honest Verifier Zero Knowledge | 30 | |
| GeorgeSor | Salty | 20 | |
| saltybutter | You either know, XOR you don't | 30 | |
| Oberon | Secret Exponents | 60 | |
| DarthJewel | Network Attacks | 5 | |
| PanagiotaTr | Encoding Challenge | 40 | |
| Elbisho | Bytes and Big Integers | 10 | |
| othmanemessaoud | Hex | 5 | |
| Oberon | Prime Power Isogenies | 50 | |
| carperca23 | Extended GCD | 20 | |
| GeorgeSor | Manyprime | 40 | |
| fatiha | ASCII | 5 | |
| carperca23 | Greatest Common Divisor | 15 | |
| saltybutter | Favourite byte | 20 | |
| carperca23 | You either know, XOR you don't | 30 | |
| JawaSkrypter | You either know, XOR you don't | 30 | |
| SQuidled | Special Soundness | 25 | |
| xEcho1337 | RSA Signatures | 25 | |
| phantomravn | ASCII | 5 | |
| night_owl | What's a Lattice? | 40 | |
| PanagiotaTr | Network Attacks | 5 | |
| saltybutter | XOR Properties | 15 | |
| phantomravn | Great Snakes | 3 | |
| Eris | Finding Flags | 2 | |
| Bionic_Hacker | ASCII | 5 | |
| phantomravn | Finding Flags | 2 | |
| othmanemessaoud | ASCII | 5 | |
| saltybutter | XOR Starter | 10 | |
| kanellam | Transparency | 50 | |
| Rufan | Greatest Common Divisor | 15 | |
| Bionic_Hacker | Great Snakes | 3 | |
| othmanemessaoud | Great Snakes | 3 | |
| saltybutter | Bytes and Big Integers | 10 | |
| othmanemessaoud | Finding Flags | 2 | |
| NatsuGwada | Structure of AES | 15 | |
| Gengg_ | Fast Primes | 75 | |
| NatsuGwada | Resisting Bruteforce | 10 |
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