Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 dagger
(6, 1, D:1)
  a gold piece
(13, 6, D:1)
  a goblin corpse
(18, -9, D:1)
  a frilled lizard corpse
(19, 20, D:1)
  a rat corpse
(24, -11, D:1)
  22 stones