Efficiency

Level 4 of the Dungeon
(0, 0, D:4)
  a +1 mace of protection
(2, -3, D:4)
  a +2 mace of holy wrath
(3, -4, D:4)
  a +0 robe
  a +0 robe
(6, -5, D:4)
  a +0 falchion
  a +0 leather armour
  a +0 falchion
  a +0 falchion
  a +0 leather armour
  an orc corpse (skeletalised by now)
  an orc corpse (skeletalised by now)
  an orc corpse (skeletalised by now)
(7, -7, D:4)
  a +0 dagger
  a hobgoblin corpse (skeletalised by now)

Level 5 of the Dungeon
(0, 0, D:5)
  12 gold pieces
(8, 27, D:5)
  29 arrows
(10, 25, D:5)
  12 gold pieces
(10, 27, D:5)
  a +0 long sword
(11, 34, D:5)
  a +0 chain mail (still there?)
  a +0 short sword (still there?)
(15, 32, D:5)
  3 gold pieces

Level 6 of the Dungeon
(0, 0, D:6)
  15 gold pieces
(0, 20, D:6)
  5 gold pieces
(0, 22, D:6)
  a +0 chain mail
(0, 25, D:6)
  a +0 hand axe
  an orc corpse
(0, 26, D:6)
  a +0 dagger (still there?)
  19 stones (still there?)
  a +0 scale mail (still there?)
(1, 4, D:6)
  a +0 mace
(1, 26, D:6)
  a +0 dagger
  a +0 robe
(3, 20, D:6)
  an iguana corpse
(4, 1, D:6)
  11 bolts
(4, 15, D:6)
  13 gold pieces
(4, 21, D:6)
  a +1 flail of protection
  a +0 leather armour
  an orc corpse
(9, 14, D:6)
  12 gold pieces
(14, 3, D:6)
  8 stones