Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 club (still there?)
  a goblin corpse (skeletalised by now) (still there?)
(12, 7, D:1)
  23 stones
(19, 11, D:1)
  4 stones
(31, -7, D:1)
  7 gold pieces

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 dagger
(6, 5, D:2)
  10 gold pieces
(16, -5, D:2)
  a rat corpse
(17, 10, D:2)
  a ball python corpse (skeletalised by now)
(21, 14, D:2)
  a +0 short sword
(29, 19, D:2)
  7 stones
(34, 18, D:2)
  7 gold pieces

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 battleaxe
(2, 3, D:3)
  7 boomerangs
(22, 19, D:3)
  a hobgoblin corpse
(22, 20, D:3)
  a +0 dagger (still there?)
  a goblin corpse (still there?)

Level 4 of the Dungeon
(0, 0, D:4)
  11 poisoned darts
(6, -8, D:4)
  a +0 giant club
(20, -12, D:4)
  8 gold pieces
(22, -16, D:4)
  a ball python corpse
(22, -13, D:4)
  11 stones
(25, -16, D:4)
  a poisoned dart
(25, -15, D:4)
  4 poisoned darts
(26, -19, D:4)
  8 gold pieces
(26, -10, D:4)
  a +0 short sword