---
# edu-of9y
title: 'Write §7: Implementing MCTS in Rust'
status: completed
type: task
priority: normal
created_at: 2026-03-13T20:03:17Z
updated_at: 2026-03-13T23:01:59Z
parent: edu-coqp
---

Walk through selection (UCB1 formula), expansion, simulation (random rollout), backpropagation. Show Rust code for the node structure and the four phases.

## Summary of Changes\n\nWrote full content for §7 covering MCTS implementation in Rust: arena-allocated node structure, all four phases implemented and explained, UCT calculation, main loop, and move selection.