vimes

Level 1 of the Dungeon
(0, 0, D:1)
  a stone
  a kobold corpse

Level 2 of the Dungeon
(2, 2, D:2)
  5 stones
(2, 5, D:2)
  6 stones

Level 3 of the Dungeon
(0, 0, D:3)
  7 stones