| Date | User | Challenge | Score |
| tagekl | JWT Sessions | 10 | |
| blooberryyyh | Extended GCD | 20 | |
| ZacLawliet | Great Snakes | 3 | |
| tagekl | Token Appreciation | 5 | |
| blooberryyyh | Greatest Common Divisor | 15 | |
| chrischako | Monoprime | 30 | |
| blooberryyyh | You either know, XOR you don't | 30 | |
| datasquirel | Structure of AES | 15 | |
| IreneK | Great Snakes | 3 | |
| chrischako | Factoring | 15 | |
| GeorgeAziz | Keyed Permutations | 5 | |
| n0gr3p | Size and Basis | 15 | |
| yangwj | You either know, XOR you don't | 30 | |
| stpt | Generators of Groups | 20 | |
| jaehyeon | Diffusion through Permutation | 30 | |
| QuachCuong | Everything is Big | 70 | |
| thantzinmaung | You either know, XOR you don't | 30 | |
| n0gr3p | Vectors | 10 | |
| thantzinmaung | Favourite byte | 20 | |
| stpt | Null or Never | 100 | |
| SneakySedano | Square Eyes | 35 | |
| thantzinmaung | XOR Properties | 15 | |
| Burger21 | Great Snakes | 3 | |
| QuachCuong | Modulus Inutilis | 50 | |
| chrischako | RSA Signatures | 25 | |
| Burger21 | Finding Flags | 2 | |
| junyouzin4209 | Maybe Someday (Maybe Someday CTF) | 0 | |
| junyouzin4209 | Maybe Someday (GoogleCTF) | 0 | |
| GeorgeAziz | Adrien's Signs | 80 | |
| Brad3017 | Base64 | 10 | |
| GeorgeAziz | Chinese Remainder Theorem | 40 | |
| thantzinmaung | XOR Starter | 10 | |
| junyouzin4209 | Probability (SEETF) | 0 | |
| GeorgeAziz | Modular Square Root | 35 | |
| GeorgeAziz | Legendre Symbol | 35 | |
| thantzinmaung | Bytes and Big Integers | 10 | |
| bl4nkyy | Chinese Remainder Theorem | 40 | |
| QuachCuong | Salty | 20 | |
| GeorgeAziz | Quadratic Residues | 25 | |
| 0xNoob | Bringing It All Together | 50 | |
| willopen | Great Snakes | 3 | |
| KietwhUIT | No Way Back Home | 100 | |
| GeorgeAziz | Transparency | 50 | |
| Bonfacevulu | You either know, XOR you don't | 30 | |
| Bonfacevulu | Favourite byte | 20 | |
| Bonfacevulu | XOR Properties | 15 | |
| Bonfacevulu | XOR Starter | 10 | |
| Bonfacevulu | Bytes and Big Integers | 10 | |
| zhacutis1tg | RSA Decryption | 20 | |
| Bonfacevulu | Base64 | 10 |
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