QED

the Dungeon
(0, 0, D)
  a stone
(1, 0, D)
  a +0 club
  a giant cockroach corpse
  a bat corpse
  a goblin corpse
(2, 0, D)
  4 stones
  a rat corpse
  a kobold corpse
(6, 0, D)
  an arrow
(7, 0, D)
  a worm corpse