2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023
| Day | Problem Page | Feel | Solution Page | 😉 |
|---|---|---|---|---|
| 1 | Not Quite Lisp | 🌟 | year15/day01 | 🪜 |
| 2 | I Was Told There Would Be No Math | 🌟 | year15/day02 | 💝 |
| 3 | Perfectly Spherical Houses in a Vacuum | 🌟 | year15/day03 | 🎅 🤖 🏘️ 🧭 |
| 4 | The Ideal Stocking Stuffer | 🌟 | year15/day04 | #️⃣ |
| 5 | Doesn't He Have Intern-Elves For This? | 🌟 | year15/day05 | 👼 🎅 😈 |
| 6 | Probably a Fire Hazard | 🌟 | year15/day06 | 💡 |
| 7 | Some Assembly Required | 😣 😣 | year15/day07 | 🔌 |
| 8 | Matchsticks | 🌟 | year15/day08 | |
| 9 | All in a Single Night | 🌟 | year15/day09 | 🗺️ 🛫 |
| 10 | Elves Look, Elves Say | 🌟 | year15/day10 | 👁️🗨️ |
| 11 | Corporate Policy | 🌟 | year15/day11 | 🔐 |
| 12 | JSAbacusFramework.io | 🌟 | year15/day12 | 🧮 |
| 13 | Knights of the Dinner Table | 🌟 | year15/day13 | 🙂 🍽️ 🙁 |
| 14 | Reindeer Olympics | 🌟 | year15/day14 | 🦌 🏁 |
| 15 | Science for Hungry People | 🌟 | year15/day15 | 🍩 🍭 🍰 |
| 17 | No Such Thing as Too Much | 🌟 | year15/day17 | 🧃 |
| 20 | Infinite Elves and Infinite Houses | 🌟 | year15/day20 | 🧝 🎁 ♾️ 🏠 |
| 24 | It Hangs in the Balance | ⌛ | year15/day24 | ⚖️ 📦 |
| 25 | Let it Snow | 🌟 | year15/day25 | 🌨️ |