| Date | User | Challenge | Score |
| Yakiv | Great Snakes | 3 | |
| Yakiv | Finding Flags | 2 | |
| Guzlyach | Modular Arithmetic 2 | 20 | |
| fathan_ | Bean Counter | 60 | |
| Htet | Ellipse Curve Cryptography | 125 | |
| Htet | No Way Back Home | 100 | |
| Kingbob99 | Finding Flags | 2 | |
| Htet | Broken RSA | 100 | |
| JacobLu3141 | LWE Background | 5 | |
| Htet | Modular Binomials | 80 | |
| thudbutt | Favourite byte | 20 | |
| d4rkwh15k3r5 | You either know, XOR you don't | 30 | |
| d4rkwh15k3r5 | Favourite byte | 20 | |
| Htet | Adrien's Signs | 80 | |
| Kanad3 | ECB Oracle | 60 | |
| PJ696769 | XOR Starter | 10 | |
| d4rkwh15k3r5 | XOR Properties | 15 | |
| DeViator | Export-grade | 100 | |
| yuzu | Lemur XOR | 40 | |
| Htet | Chinese Remainder Theorem | 40 | |
| demr | LWE Background | 5 | |
| mboh2 | Resisting Bruteforce | 10 | |
| Koalko | ECB CBC WTF | 55 | |
| jjww | Bytes and Big Integers | 10 | |
| demr | Broken RSA | 100 | |
| dimi | Bytes and Big Integers | 10 | |
| JPM | Favourite byte | 20 | |
| SAATVIK | Curves and Logs | 40 | |
| marco44 | Base64 | 10 | |
| denz | Great Snakes | 3 | |
| denz | Finding Flags | 2 | |
| SAATVIK | Scalar Multiplication | 35 | |
| JacobLu3141 | Gaussian Reduction | 50 | |
| kurumi_11 | Passwords as Keys | 50 | |
| crumbs | Base64 | 10 | |
| thudbutt | XOR Properties | 15 | |
| SAATVIK | Point Addition | 30 | |
| crypto_07 | Great Snakes | 3 | |
| mohamed750boukh | Favourite byte | 20 | |
| Sho3la | Bytes and Big Integers | 10 | |
| kareem_abousheta | Hex | 5 | |
| crumbs | Hex | 5 | |
| JPM | XOR Properties | 15 | |
| dimi | Base64 | 10 | |
| JPM | XOR Starter | 10 | |
| mboh2 | Keyed Permutations | 5 | |
| Menshikii | Hex | 5 | |
| DeViator | Parameter Injection | 60 | |
| Codru | Computing Public Values | 25 | |
| JoeBiden | Chinese Remainder Theorem | 40 |
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