IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 club
  3 stones
(5, 0, D:1)
  a +0 club
(8, -5, D:1)
  a +0 robe
(14, 22, D:1)
  a +0 club
(19, -14, D:1)
  a +0 short sword
(25, 28, D:1)
  a +0 dagger
  5 stones
(30, 7, D:1)
  a +0 dagger
(30, 15, D:1)
  a +0 short sword
(31, 14, D:1)
  a +0 dagger
(46, -1, D:1)
  a +0 dagger
(51, 31, D:1)
  a +0 robe
(55, -3, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 dagger
(2, -20, D:2)
  a +0 robe
(3, -4, D:2)
  2 stones
(6, 5, D:2)
  a +0 ring mail
(8, -25, D:2)
  6 stones
(11, -3, D:2)
  a +0 dagger
(16, -4, D:2)
  a +0 pair of boots
(18, -25, D:2)
  a +0 spear
  6 stones
(19, -21, D:2)
  5 poisoned darts
(28, 5, D:2)
  a +0 spear
(34, -6, D:2)
  a +0 leather armour
(35, -13, D:2)
  8 stones

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 sling
(4, 3, D:3)
  an amulet of magic regeneration
(6, 16, D:3)
  4 stones
(7, 24, D:3)
  a +0 battleaxe
(10, 21, D:3)
  a +0 leather armour
(15, 7, D:3)
  a +0 short sword
  a +0 ring mail
(24, -2, D:3)
  a +0 leather armour
(24, 8, D:3)
  a +0 ring mail
(28, 26, D:3)
  5 stones
(32, 11, D:3)
  a +0 hand axe
(35, -2, D:3)
  a +0 robe
(41, 13, D:3)
  6 stones
(41, 14, D:3)
  a +0 leather armour

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 dagger
  a stone
(1, -19, D:4)
  a book of Spatial Translocations
(1, -3, D:4)
  a +0 hand axe
(1, -2, D:4)
  a +0 hand axe
  a +0 club
  a +0 short sword
  an orc corpse
(18, -14, D:4)
  a +0 battleaxe
(27, -19, D:4)
  a +0 rapier
(29, -25, D:4)
  a giant cockroach corpse
(47, -16, D:4)
  a +0 dagger
  a +0 leather armour
  an orc corpse (skeletalised by now)
(48, -19, D:4)
  a +0 mace
  6 stones
  a +0 chain mail
  an orc corpse (skeletalised by now)
(48, -14, D:4)
  a +3 long sword
  a +0 dagger of draining
(49, -12, D:4)
  a +0 morningstar
  a boomerang
  a +0 ring mail
(51, -6, D:4)
  a +0 whip
  an orc corpse (skeletalised by now)