| Date | User | Challenge | Score |
| astrixdh | You either know, XOR you don't | 30 | |
| Shinny | ASCII | 5 | |
| Grolando | Public Keys | 15 | |
| dgonzalez16 | Chinese Remainder Theorem | 40 | |
| astrixdh | Favourite byte | 20 | |
| hhai | Base64 | 10 | |
| Fennec | Great Snakes | 3 | |
| Shinny | Great Snakes | 3 | |
| dgonzalez16 | Modular Square Root | 35 | |
| astrixdh | XOR Properties | 15 | |
| Shinny | Finding Flags | 2 | |
| hhai | Hex | 5 | |
| DyN4m1ck | ASCII | 5 | |
| astrixdh | XOR Starter | 10 | |
| Fennec | Finding Flags | 2 | |
| __arsen_poghosya | Manyprime | 40 | |
| suiya | Quadratic Residues | 25 | |
| Kran | Encoding Challenge | 40 | |
| dgonzalez16 | Legendre Symbol | 35 | |
| Islam111 | RSA Decryption | 20 | |
| iFamished | Finding Flags | 2 | |
| guille02 | Base64 | 10 | |
| DyN4m1ck | Great Snakes | 3 | |
| astrixdh | Bytes and Big Integers | 10 | |
| Islam111 | Private Keys | 20 | |
| siimma | ASCII | 5 | |
| tranchsanto | Sratslla SEA (HKCERT CTF) | 0 | |
| DyN4m1ck | Finding Flags | 2 | |
| mutaz2123 | Bytes and Big Integers | 10 | |
| cupid | Bytes and Big Integers | 10 | |
| guille02 | Hex | 5 | |
| jokmod | Bytes and Big Integers | 10 | |
| illuminate0221 | Bytes and Big Integers | 10 | |
| dgonzalez16 | Quadratic Residues | 25 | |
| hyewonjeong | Extended GCD | 20 | |
| guille02 | ASCII | 5 | |
| siimma | Great Snakes | 3 | |
| sengjin | Great Snakes | 3 | |
| qnaf_alokmi | Jack's Birthday Confusion | 30 | |
| dgonzalez16 | Modular Inverting | 25 | |
| __arsen_poghosya | Monoprime | 30 | |
| hyewonjeong | Greatest Common Divisor | 15 | |
| akramshiban339 | WOTS Up | 75 | |
| jokmod | Base64 | 10 | |
| akramshiban339 | Twin Keys | 100 | |
| itadori002 | Modular Square Root | 35 | |
| dgonzalez16 | Modular Arithmetic 2 | 20 | |
| DrCryAtt | XOR Starter | 10 | |
| akramshiban339 | The Matrix Revolutions | 125 | |
| akramshiban339 | The Matrix Reloaded | 100 |
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