turn-based

It would be nice to have an option to pass G and ctx into the redact option in a long form move. The undoable property already has this option, so it should be fairly easy to implement. So it would looke like...

B: {
  move: (G, ctx, ...args) => {},
  redact: true/false or (G, ctx) => {},
},

For my particular use case, I have moves in my game that should normally show

Expand the available list of system metrics. Around 10-15 new metrics (the most useful we can think of) is a good start.