This activity is famous for being a “level-up” moment in the course. It’s where the puzzles get genuinely tricky, and the word “Answer Key” starts getting searched for in a panic.

But here’s the secret: The exam uses similar logic without the visual game.

Before I share where to find the solutions (and how to understand them), let’s be clear:

| Resource | What You’ll Find | | :--- | :--- | | | Teachers often post hints. Search your specific course year. | | YouTube: “PLTW CSE 4.3.1 Terminus Part 2” | Walkthrough videos show the exact moves and code. | | GitHub (search carefully) | Some students share their completed scripts. Look for repositories named “PLTW-CSE” or “Terminus-solutions.” | | Ask your teacher for a “check-in” | They won’t give the key, but they will point out which if statement is wrong. | A Sample Code Snippet (For One Common Puzzle) This is not the full answer key, but it shows the pattern for moving a block one space right:

So use the walkthroughs. Look at GitHub examples. But type every line yourself, change the variable names, and test it. That’s real learning.