Game flags

Flags in static gameinfo.flags tell the front and back ends about special behaviour. See gameinfo.json for the schema.

Prose descriptions below; the authoritative enum is auto-generated.

Flag	Meaning
`aiai`	AiAi bot support (`state2aiai`, `translateAiai`)
`automove`	Often only one legal move — auto-execute when detected
`autopass`	Like automove but only for pass
`check`	Implement `inCheck() => number[]`
`custom-buttons`	Implement `getButtons()`
`custom-colours`	Implement `getPlayerColour(n)` — not with `shared-pieces`
`custom-randomization`	`randomMove()` despite `no-moves`
`custom-rotation`	`getCustomRotation()` for board angle
`experimental`	Hidden on production; visible on dev
`no-explore`	Disable exploration mode
`no-moves`	Cannot list all legal moves
`perspective`	Per-player board rotation
`pie` / `pie-even`	Pie rule seat swap
`player-stashes`	`getPlayerStash(n)`
`random-start`	`getStartingPosition()` for game record
`rotate90`	90° rotation increments
`scores`	Final scores in EOG emails
`shared-pieces`	No player-owned colours
`shared-stash`	`getSharedStash()`
`simultaneous`	Use `GameBaseSimultaneous`
`stacking-expanding`	Pass click row/col into `render()`

Flag enum (from gameinfo.json)