River crossing puzzle 3

     problem statement

Why LLM may perform poorly with reasoning and planning

Opus 4.5 did it

ChatGPT non Think failed, Opus 4.5 fix it. ChatGPT Think led to Python gen and exe

Gemini 3 Pro did it by pure reasoning

Code gen (Python)

code gen python A* search for ::River Crossing Puzzle ...

Python on colab

Use REACT to visualize the steps

JS

change to js

run js

use React to visualize the steps

ChatGPT 5 create BFS to solve it. 17 step solution, visualize, visualizer

ChatGPT BFS

ChatGPT BFS

If BFS option is trurned off, ChatGPT has a hard time doing it manually.