| Date | User | Challenge | Score |
| acidlog | Extended GCD | 20 | |
| pemula1 | RSA Decryption | 20 | |
| hachiware | Bytes and Big Integers | 10 | |
| hahahahhahahhah | Chinese Remainder Theorem | 40 | |
| youyouluming | Quadratic Residues | 25 | |
| whoami4 | Secure Protocols | 5 | |
| pemula1 | Private Keys | 20 | |
| youyouluming | Modular Inverting | 25 | |
| hahahahhahahhah | Legendre Symbol | 35 | |
| hzy | Modular Square Root | 35 | |
| hzy | Legendre Symbol | 35 | |
| pemula1 | Euler's Totient | 20 | |
| pemula1 | Public Keys | 15 | |
| youyouluming | Modular Arithmetic 2 | 20 | |
| fk | Modular Square Root | 35 | |
| Vadrusz | Endless Emails | 150 | |
| youyouluming | Modular Arithmetic 1 | 20 | |
| youyouluming | Extended GCD | 20 | |
| hahahahhahahhah | Quadratic Residues | 25 | |
| tackmin1204 | Encoding Challenge | 40 | |
| lxy6666 | Quadratic Residues | 25 | |
| lxy6666 | Modular Inverting | 25 | |
| lxy6666 | Modular Arithmetic 2 | 20 | |
| lxy6666 | Modular Arithmetic 1 | 20 | |
| fk | Legendre Symbol | 35 | |
| youyouluming | Greatest Common Divisor | 15 | |
| hachiware | Base64 | 10 | |
| hachiware | Hex | 5 | |
| hahahahhahahhah | Modular Inverting | 25 | |
| HojaajoH | Hex | 5 | |
| acidlog | Greatest Common Divisor | 15 | |
| amritanshu25 | Quadratic Residues | 25 | |
| HojaajoH | ASCII | 5 | |
| hachiware | ASCII | 5 | |
| HojaajoH | Great Snakes | 3 | |
| HojaajoH | Finding Flags | 2 | |
| Nellle | Modular Arithmetic 2 | 20 | |
| UIT | Dancing Queen | 120 | |
| hachiware | Great Snakes | 3 | |
| hachiware | Finding Flags | 2 | |
| amritanshu25 | Modular Inverting | 25 | |
| gumbat70 | Encoding Challenge | 40 | |
| 0xl3x | Quadratic Residues | 25 | |
| alchemist7 | Jack's Birthday Confusion | 30 | |
| Nellle | Modular Arithmetic 1 | 20 | |
| Nellle | Extended GCD | 20 | |
| fk | Quadratic Residues | 25 | |
| 0xl3x | Modular Inverting | 25 | |
| fk | Modular Inverting | 25 | |
| fk | Modular Arithmetic 2 | 20 |
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