| Date | User | Challenge | Score |
| minshay | Broken RSA | 100 | |
| londchok | Finding Flags | 2 | |
| sion4496 | XOR Starter | 10 | |
| Karnag3 | Base64 | 10 | |
| Clairdelune | Favourite byte | 20 | |
| teryink | XOR Properties | 15 | |
| Karnag3 | Hex | 5 | |
| D1533 | A True Genus | 175 | |
| erickao | Extended GCD | 20 | |
| traktor | Modular Arithmetic 1 | 20 | |
| iniM0n | Jack's Birthday Confusion | 30 | |
| traktor | Extended GCD | 20 | |
| chxrry_blossom12 | Finding Flags | 2 | |
| iniM0n | Jack's Birthday Hash | 20 | |
| LLC | Legendre Symbol | 35 | |
| D1533 | Meet me in the Claw | 120 | |
| origabai | Symmetry | 50 | |
| defa | Modular Inverting | 25 | |
| Karnag3 | ASCII | 5 | |
| oshvaldo | XOR Starter | 10 | |
| origabai | You either know, XOR you don't | 30 | |
| quangntenemy | RSA or HMAC? Part 2 | 100 | |
| sdigs | Quadratic Residues | 25 | |
| Karnag3 | Great Snakes | 3 | |
| teryink | XOR Starter | 10 | |
| dkoazwlearning | Everything is Big | 70 | |
| 4lch3my | Base64 | 10 | |
| 4lch3my | Hex | 5 | |
| 4lch3my | ASCII | 5 | |
| 4lch3my | Great Snakes | 3 | |
| iniM0n | ProSign 3 | 100 | |
| Laingameruwu | Confusion through Substitution | 25 | |
| BramBode | You either know, XOR you don't | 30 | |
| 4lch3my | Finding Flags | 2 | |
| Laingameruwu | Round Keys | 20 | |
| Havie | ASCII | 5 | |
| iniM0n | Curveball | 100 | |
| DigitalPredator | Great Snakes | 3 | |
| BramBode | Favourite byte | 20 | |
| DigitalPredator | Finding Flags | 2 | |
| oshvaldo | Bytes and Big Integers | 10 | |
| BramBode | XOR Properties | 15 | |
| defa | Modular Arithmetic 2 | 20 | |
| togaee23 | Extended GCD | 20 | |
| DarkinCypher | Legendre Symbol | 35 | |
| ashlp_24 | XOR Properties | 15 | |
| sion4496 | Bytes and Big Integers | 10 | |
| Laingameruwu | Structure of AES | 15 | |
| Lafayette30 | Saying Hello | 20 | |
| 1dory1 | Greatest Common Divisor | 15 |
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