def chord_targets.pick
import minebender-game@1.0.0.0/game.bend as Gameimport Base
import minebender-game@1.0.0.0/types.bend as T
340def chord_targets.pick(+g: Game, v: T.Knowledge, +ns: List<&2, T.Pos>, s: T.Seen) ->
341 List<&2, T.Pos>:
342 match s:
343 case T.Shown{k}:
344 Bool.pick(List<&2, T.Pos>, Nat.is_eq(flags_among(g, ns), k),
345 hidden_unflagged(g, v, ns), Nil{})
346 case o:
347 Nil{}