| Date | User | Challenge | Score |
| h4ppE | XOR Properties | 15 | |
| cyk0sure | Collider | 50 | |
| Aladiin | Great Snakes | 3 | |
| Ness2626 | Bringing It All Together | 50 | |
| sasytaco802 | Collider | 50 | |
| NJJ | ZKP Introduction | 5 | |
| syeyoung | Logon Zero | 80 | |
| h4ppE | XOR Starter | 10 | |
| Mdarix | Modular Inverting | 25 | |
| crypto619 | Bruce Schneier's Password | 100 | |
| xx33xx | Factoring | 15 | |
| h4ppE | Bytes and Big Integers | 10 | |
| sasytaco802 | Jack's Birthday Confusion | 30 | |
| rambousek | ASCII | 5 | |
| h4ppE | Base64 | 10 | |
| Jaxc | ZKP Introduction | 5 | |
| boestraw | Proofs of Knowledge | 20 | |
| h4ppE | Hex | 5 | |
| Nanang | ZKP Introduction | 5 | |
| h4ppE | ASCII | 5 | |
| Gabal | Great Snakes | 3 | |
| 0xs1nr | Decrypting TLS 1.3 | 35 | |
| h4ppE | Great Snakes | 3 | |
| Gabal | Finding Flags | 2 | |
| h4ppE | Finding Flags | 2 | |
| xx33xx | RSA Decryption | 20 | |
| uqieee01 | ASCII | 5 | |
| dxrxa | Finding Flags | 2 | |
| uqieee01 | Great Snakes | 3 | |
| Demo0z | You either know, XOR you don't | 30 | |
| boestraw | ZKP Introduction | 5 | |
| uqieee01 | Finding Flags | 2 | |
| xx33xx | Euler's Totient | 20 | |
| YEVTE | Favourite byte | 20 | |
| Mdarix | Modular Arithmetic 2 | 20 | |
| Demo0z | Favourite byte | 20 | |
| sasytaco802 | Jack's Birthday Hash | 20 | |
| TheBlueGuy7 | Legendre Symbol | 35 | |
| xx33xx | Modular Exponentiation | 10 | |
| zprince | You either know, XOR you don't | 30 | |
| 0xs1nr | Decrypting TLS 1.2 | 30 | |
| gwx | Modular Inverting | 25 | |
| Demo0z | XOR Properties | 15 | |
| Windchaser | Modular Inverting | 25 | |
| Jacob77 | Finding Flags | 2 | |
| gwx | Modular Arithmetic 2 | 20 | |
| bharathkumar976 | Network Attacks | 5 | |
| TxLast | Bean Counter | 60 | |
| Vansforever | Base64 | 10 | |
| NJJ | Efficient Exchange | 50 |
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