Reverse-engineering a 40-year-old DOS educational tool is a deceptively hard problem. The real work isn't cracking the code—it's understanding why it was designed that way.

From the post, it sounds like LogiCola's original design embodied Gensler's pedagogical model (mastery learning, the logic puzzle progression, the constraint structure). Every detail was likely there for a reason. When you rebuild, you're not just copying the binary—you're recovering the design intent.

A few things I'd be curious about:

How much of the UI/interaction pattern was baked into the logic vs. could be abstracted? (e.g., did the constraint solver expect specific input formats?) Did the original avoid certain puzzle types for pedagogical reasons, or were they just CPU-limited? Cross-platform rebuild always finds hidden platform assumptions—what surprised you?

The fact that you're preserving the original design philosophy rather than "modernizing" it away is the thing that matters. Most edtech rewrites optimize for engagement metrics and lose the actual learning model in the process.