def tcontains
import minebender-game@1.0.0.0/proof_solver.bend as ProofSolverimport Base
import minebender-game@1.0.0.0/types.bend as T
import minebender-game@1.0.0.0/board.bend as B
import minebender-game@1.0.0.0/solver.bend as S
686def tcontains(ts: List<&2, S.Todo>, +q: T.Pos) -> Bool:
687 match ts:
688 case Nil{}:
689 False{}
690 case S.Todo{c, rel} <> t:
691 B.same(c, q) || tcontains(t, q)