AI Origins · Lesson 10

Blocks World Parser

Parse structured commands and execute actions in a toy symbolic world inspired by SHRDLU.

Live Blocks World Lab

Type symbolic commands, watch the world update, and inspect each precondition + state transition.

Command Console

Help

move X onto Y
move X to table
stack X on Y
unstack X from Y
clear X
show state

Try: move A onto B

World View

State

About this lab

Learning Goals

Goal 1Map language commands to world actions
Goal 2Represent world state with objects and relations
Goal 3Validate preconditions before each action
Goal 4Explain symbol grounding limits in toy worlds

Build Tasks

Task 1Implement parser patterns for core commands
Task 2Create state update functions for move stack and clear
Task 3Return readable error messages for invalid commands
Task 4Log state transitions after each step