Living Museum of Learning

Small circles, Big thinkers 🌱
Albert's First Moving Piece

Albert's First Moving Piece

When a pawn moved and a software design began to emerge

Albert had been building the foundations of a chess program.

The board existed.

The pieces existed.

But the pieces themselves could not move.

This class focused on a single goal:

Make one piece move correctly.

Rather than writing one large function, Albert began separating responsibilities.

He divided the logic into several smaller functions:

movePiece()
canPieceMove()
canPawnMove()

The pawn became the first real piece.

Step by step, Albert reasoned through its rules:

move forward one square
move forward two squares from the starting position
distinguish white and black pawns

The code was not copied.

The movement rules were derived during the lesson.

Something especially encouraging appeared.

Although there was not enough time to implement captures, Albert wrote:

// for capture

in multiple places.

The logic was incomplete.

But the design was already larger than the implementation.

He was beginning to think:

What will this system eventually need?

Another small moment occurred.

In one place he wrote:

Pawn

Elsewhere:

pawn

I simply circled the two words and asked:

What is this?

Albert immediately recognized the problem.

That led naturally to another discussion:

Why are strings dangerous?
Why might an enum be safer?
How can a system protect itself from mistakes?

The lesson had quietly moved beyond chess.

Large problems become manageable when divided into smaller functions.

Designing future behavior is part of programming.

Comments sometimes reveal thinking that code has not yet reached.

Small inconsistencies can expose larger design issues.

Strong systems reduce the possibility of human mistakes.

At the end of the class, a pawn finally moved.

That was the visible success.

But perhaps the more important moment happened earlier.

Albert had already left spaces for future captures.

He had already encountered the limitations of strings.

He had already begun separating movement rules from movement actions.

The piece moved on the screen.

The design moved in his mind.

And that may be the real milestone.

🌱 iOS Dream Team
Small circles. Big thinkers.