Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  17 gold pieces
(12, 29, D:1)
  a +0 leather armour
(13, -3, D:1)
  9 gold pieces
(14, 35, D:1)
  18 arrows
(17, 5, D:1)
  a +0 club
(19, 3, D:1)
  a frilled lizard corpse
(19, 12, D:1)
  a +0 club
(19, 31, D:1)
  a +0 club (still there?)
  a hobgoblin corpse (still there?)
(21, 32, D:1)
  a stone
(23, 11, D:1)
  a rat corpse
(23, 24, D:1)
  8 bolts
(27, 25, D:1)
  a +0 whip (still there?)
  a stone (still there?)
(28, 29, D:1)
  a +0 club (still there?)
  a hobgoblin corpse (still there?)
(29, 22, D:1)
  a bat corpse
(33, 8, D:1)
  a stone
(35, 25, D:1)
  a hobgoblin corpse
(36, 9, D:1)
  a bat corpse
(38, 13, D:1)
  a dart slug corpse
(38, 14, D:1)
  a +0 dagger
  a goblin corpse
(39, 5, D:1)
  a stone
(41, 9, D:1)
  12 gold pieces
(43, 7, D:1)
  a +0 leather armour

Level 2 of the Dungeon
(0, 0, D:2)
  18 stones