| Day | Title | Code | Tests | Tags |
|---|---|---|---|---|
| Day 1 | The Tyranny of the Rocket Equation | code | tests | module; division |
| Day 2 | 1202 Program Alarm | code | tests | Intcode; add; multiply |
| Day 3 | Crossed Wires | code | tests | Manhattan distance; 2d; intersection |
| Day 4 | Secure Container | code | tests | numeric password; validation rules; combinations |
| Day 5 | Sunny with a Chance of Asteroids | code | tests | Intcode; i/o; parameter mode; jump; less than |
| Day 6 | Universal orbit map | code | tests | orbits; chain of dependencies |
| Day 7 | Amplification Circuit | code | tests | Intcode; amplifiers; thrusters; feedback loop |
| Day 8 | Space Image Format | code | tests | image composition; layers |
| Day 9 | Sensor Boost | code | tests | Intcode; relative mode; offset |
| Day 10 | Monitoring Station | code | tests | radar; 2d; rotate & destroy asteroids |
| Day 11 | Space Police | code | tests | Intcode; moving robot; 2d; paint black&white |
| Day 12 | The N-Body Problem | code | tests | orbits; position; velocity; 3d; loop |
| Day 13 | Care Package | code | tests | Intcode; arkanoid; walls & blocks |
| Day 14 | Space Stoichiometry | code | tests | chemicals; dependencies |
| Day 15 | Oxygen System | code | tests | Intcode; moving robot; walls & blocks; directions; 2d; flooding |
| Day 16 | Flawed Frequency Transmission | code | tests | i/o; binaries; encoding |
| Day 17 | Set and Forget | code | tests | Intcode |
| Day 18 | Many-Worlds Interpretation | code | tests | maze; exploration; 2d; doors & keys |
| Day 19 | Tractor Beam | code | tests | Intcode; 2d grid; find square in beam |
| Day 20 | Donut Maze | code | tests | Maze with portals |
| Day 21 | Springdroid Adventure | code | tests | Intcode; assembly; jumping droid |
| Day 22 | Slam Shuffle | code | tests | card shuffling |
| Day 23 | Category Six | code | tests | Intcode; network computers; addresses |
| Day 24 | Planet of Discord | code | tests | bugs; game of life; nested |
| Day 25 | Cryostasis | code | tests | Intcode; explore rooms; take or drop items; combinations |