| Date | User | Challenge | Score |
| chaiwon | Bytes and Big Integers | 10 | |
| soopaly | Symmetry | 50 | |
| cafekao | ASCII | 5 | |
| soopaly | Flipping Cookie | 60 | |
| billy_leiv | Finding Flags | 2 | |
| eduardos | Finding Flags | 2 | |
| DavidTruong | CTRIME | 70 | |
| enqn0107 | ASCII | 5 | |
| soopaly | ECB CBC WTF | 55 | |
| rohith_18 | Chinese Remainder Theorem | 40 | |
| apricotblos | ASCII | 5 | |
| euta1000 | ASCII | 5 | |
| rohith_18 | Modular Square Root | 35 | |
| baitfr | Privacy-Enhanced Mail? | 25 | |
| Fssher | Modular Binomials | 80 | |
| Meen4 | Square Eyes | 35 | |
| arecia | What's a Lattice? | 40 | |
| as_cool_as_me | ASCII | 5 | |
| euta1000 | Great Snakes | 3 | |
| apricotblos | Finding Flags | 2 | |
| apricotblos | Great Snakes | 3 | |
| Saschatouille | Let's Prove It Again | 175 | |
| enqn0107 | Great Snakes | 3 | |
| rohith_18 | Legendre Symbol | 35 | |
| cafekao | Great Snakes | 3 | |
| 253 | Great Snakes | 3 | |
| didwnghks418 | Great Snakes | 3 | |
| Draxen | ASCII | 5 | |
| CocococoNun | Great Snakes | 3 | |
| iniM0n | Quadratic Residues | 25 | |
| LikKen | Legendre Symbol | 35 | |
| euta1000 | Finding Flags | 2 | |
| enqn0107 | Finding Flags | 2 | |
| 253 | Finding Flags | 2 | |
| cafekao | Finding Flags | 2 | |
| cryptogirl1 | Flipping Cookie | 60 | |
| didwnghks418 | Finding Flags | 2 | |
| CocococoNun | Finding Flags | 2 | |
| Fssher | Adrien's Signs | 80 | |
| Joker_ToTo | ASCII | 5 | |
| chananelz | Decrypting TLS 1.3 | 35 | |
| whoiswhois | Digestive | 60 | |
| Meen4 | Monoprime | 30 | |
| Lef264 | Round Keys | 20 | |
| nathanielacr | Adrien's Signs | 80 | |
| as_cool_as_me | Great Snakes | 3 | |
| iniM0n | Modular Inverting | 25 | |
| frostfire | Favourite byte | 20 | |
| Fssher | Chinese Remainder Theorem | 40 | |
| Draxen | Great Snakes | 3 |
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