Solver.none_among: def of minebender-game@1.0.0.0
Import: import minebender-game@1.0.0.0/solver.bend as Solver
Lines 179-184 of minebender-game@1.0.0.0/solver.bend: https://jend.leeeet.dev/read.txt?path=minebender-game@1.0.0.0/solver.bend&start_line=179&end_line=184

import Base
import minebender-game@1.0.0.0/types.bend as T

def none_among(+part: T.Grid(Maybe<&2, Bool>), ps: List<&2, T.Pos>) -> Nat:
  match ps:
    case Nil{}:
      0n
    case q <> t:
      Nat.add(one_if(is_none(look(part, q))), none_among(part, t))

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/solver.bend&name=is_none
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/solver.bend&name=look
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/solver.bend&name=one_if
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/types.bend&name=Grid
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/types.bend&name=Pos