Welcome to Down The Rat Hole, the development server where I host various hacks and works-in-progress, chase down rabbit holes, and sometimes get stuck in rat holes. Some projects graduate and get written up at www.grwster.com.

You probably ended up here because I sent you a private link, or someone else passed it along to you. I hope you enjoyed it!

Here some other things you might enjoy:

• Crab Fragments—A collection of games from James Ernest and Crab Fragment Labs that I have made playable against the computer in your web browser using my Monte Carlo Tree Search game AI engine JSMCTS.
• Ephemeral Tic-Tac-Toe—Play this Tic-Tac-Toe variant, where your moves fade away and disappear after four turns, against the computer in your web browser (inspired by Stefan Matei https://codepen.io/nonsalant/pen/jOjwvMX). This also uses JSMCTS.
  • If you like Tic-Tac-Toe variants, you might also enjoy Notakto, our implementation of X-only Misere Tic-Tac-Toe at Counterwave Games.
• JSMCTS—Before Deep Mind there was Monte Carlo Tree Search (MCTS) ;-) This is an implementation of MCTS in javascript that can be used to run batch simulations or power AI opponents in a web browser. I've used JSMCTS to analyze games and test heuristic playing strategies.
  • Several example games are playable here
  • The code is here https://github.com/grwhitehead/jsmcts
• CNC Mt Whitney Model—I cut a topographic model of Mt Whitney from Birch plywood on a CNC, generating all of the GCode code myself in Python.
  • In the process of learning GCode I wrote a parser/interpreter for it from the RS274/NGC (GCode) spec, because... can you really understand a language if you haven't written a compiler or interpreter for it? ;-) That code is here https://github.com/grwhitehead/rs274ngc-python3
• Is it Red or Green?—If you have red/green color blindness, you might find this app useful. I wrote it after years of struggling to read status LEDs on things like routers and battery chargers.
  • The app is hosted here https://www.isitredorgreen.com
  • The code is here https://github.com/grwhitehead/isitredorgreen
• Germanium Fuzz Circuit Simulation—I built a circuit simulation of the first fuzz pedal, the 1962 Maestro Fuzz Tone FZ-1, based on the documentation in Glen Snoddy's US Patent #3,213,181. The Maestro Fuzz Tone was used by the Rolling Stones on Satisfaction in 1965 and inspird many subsequent fuzz circuits, including the Tone Bender and the Fuzz Face.
  • The code is here https://grwhitehead.github.io/us3213181
• Tiny Model III—I got some of my childhood BASIC code running on a 1:6 scale model of the TRS-80 Model III with a working display.
  • The code is here https://github.com/grwhitehead/tinymodel3