---
# edu-k3tq
title: 'Write §4: Choosing a simple game — Tic-Tac-Toe'
status: completed
type: task
priority: normal
created_at: 2026-03-13T20:03:17Z
updated_at: 2026-03-13T22:53:54Z
parent: edu-coqp
---

Explain why Tic-Tac-Toe is ideal: small state space, deterministic, zero-sum, easily verifiable. Foreshadow how the same approach scales to Go/Chess.

## Summary of Changes

Wrote full content for §4 covering why Tic-Tac-Toe is the ideal learning vehicle: suitable game properties, game tree size, known optimal solution as validation target, and comparison with alternatives.