Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(4, -8, D:1)
  a +0 plate armour
(12, 8, D:1)
  27 stones
(13, 2, D:1)
  3 gold pieces
(19, -6, D:1)
  a +0 leather armour
(24, -31, D:1)
  a +0 whip
(24, 5, D:1)
  a +0 robe

Level 3 of the Dungeon

Level 4 of the Dungeon
(0, 0, D:4)
  9 gold pieces
(9, -1, D:4)
  12 stones
(12, 0, D:4)
  13 gold pieces

Level 5 of the Dungeon
(0, 0, D:5)
  a +0 dagger
(4, -7, D:5)
  a +0 war axe

Level 6 of the Dungeon
(0, 0, D:6)
  10 gold pieces
(1, 22, D:6)
  23 stones
(2, 1, D:6)
  16 sling bullets
(6, 13, D:6)
  9 stones
(7, 4, D:6)
  a +0 antimagic flail
  a +0 whip
  a +0 whip

Level 8 of the Dungeon
(0, 0, D:8)
  12 stones
(4, -12, D:8)
  18 gold pieces
(24, 1, D:8)
  2 boomerangs
  a +0 hand axe
(24, 2, D:8)
  a +0 short sword
  a +0 flail
(24, 3, D:8)
  a +0 club
(27, -1, D:8)
  a +0 scale mail
(28, 6, D:8)
  a +0 hand axe
(28, 21, D:8)
  a +0 scimitar
  a +0 robe
(28, 22, D:8)
  a +2 scimitar
  a +0 robe
(28, 24, D:8)
  a +0 halberd of venom
(30, 20, D:8)
  a cursed +0 halberd (still there?)
  a +0 robe (still there?)
(31, 25, D:8)
  a +0 robe
  a +0 long sword
  a +0 robe
(31, 26, D:8)
  a +0 giant spiked club (still there?)
  a +0 giant club (still there?)
  a two-headed ogre corpse (skeletalised by now) (still there?)
(32, 7, D:8)
  a +0 ring mail
(32, 10, D:8)
  a +0 dagger
  a +0 robe
  an orc corpse
(32, 11, D:8)
  a +0 broad axe
(33, 8, D:8)
  a +0 short sword
(35, 7, D:8)
  a +0 club
(39, -32, D:8)
  15 gold pieces
(43, 9, D:8)
  18 gold pieces

Level 9 of the Dungeon
(0, 0, D:9)
  a +0 battleaxe
(7, 14, D:9)
  a necrophage skeleton