| Date | User | Challenge | Score |
| Warlock235 | Lo-Hi Card Game | 120 | |
| mh_BIllah | Base64 | 10 | |
| EveN | Monoprime | 30 | |
| tranchsanto | Sign In Please, Again (HKCERT CTF) | 0 | |
| Leizoe | Base64 | 10 | |
| pentester | Modular Exponentiation | 10 | |
| davemathman | Finding Flags | 2 | |
| mult1k | Size and Basis | 15 | |
| gogogo | Finding Flags | 2 | |
| HIHELLo | RSA Decryption | 20 | |
| mh_BIllah | Hex | 5 | |
| Anivia_Jeremia | Adrien's Signs | 80 | |
| brickzilla | Flipping Cookie | 60 | |
| RDxR10 | Abelian SIDH | 90 | |
| mh_BIllah | ASCII | 5 | |
| aezwcg2875 | Base64 | 10 | |
| EveN | Factoring | 15 | |
| ahmed1 | Chinese Remainder Theorem | 40 | |
| anhsaoleloi | Computing Shared Secrets | 30 | |
| elazdi_al | Modular Inverting | 25 | |
| kurumi_ | The Good, The Pad, The Ugly | 100 | |
| Leizoe | Hex | 5 | |
| mh_BIllah | Great Snakes | 3 | |
| elazdi_al | Modular Arithmetic 2 | 20 | |
| mult1k | Vectors | 10 | |
| Leizoe | ASCII | 5 | |
| CYBERDEMON | Finding Flags | 2 | |
| AZZ912 | Script Kiddie | 70 | |
| elazdi_al | Modular Arithmetic 1 | 20 | |
| Leizoe | Network Attacks | 5 | |
| elazdi_al | Extended GCD | 20 | |
| Leizoe | Great Snakes | 3 | |
| Meen4 | Let's Decrypt | 80 | |
| Leizoe | Finding Flags | 2 | |
| RDxR10 | Better than Linear | 85 | |
| brickzilla | ECB Oracle | 60 | |
| Giuliano | TLS Handshake | 15 | |
| UGOTTHEBIGL | Lemur XOR | 40 | |
| Giuliano | Sharks on the Wire | 10 | |
| itg6j | Jack's Birthday Confusion | 30 | |
| Giuliano | Secure Protocols | 5 | |
| p4p11 | ASCII | 5 | |
| LostExcalibur | Legendre Symbol | 35 | |
| 0xFFFFFF | Salty | 20 | |
| PhKhanh | Hex | 5 | |
| Alphurion | Great Snakes | 3 | |
| UGOTTHEBIGL | Encoding Challenge | 40 | |
| Alphurion | Finding Flags | 2 | |
| EveN | RSA Signatures | 25 | |
| Yash_Khatri | Favourite byte | 20 |
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