IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 club
  a +0 club
(2, 17, D:1)
  a +0 dagger
(6, -8, D:1)
  a +0 club
(9, 28, D:1)
  a bat skeleton
(15, 8, D:1)
  2 stones
(16, 23, D:1)
  a +0 plate armour
(23, 13, D:1)
  a rat skeleton
(26, 21, D:1)
  6 poisoned darts
(39, -2, D:1)
  8 stones
(39, 17, D:1)
  5 stones
(43, -12, D:1)
  a +0 ring mail
(45, -13, D:1)
  8 stones
(58, 25, D:1)
  5 stones

Level 2 of the Dungeon
(0, 0, D:2)
  a ball python skeleton
(0, 13, D:2)
  a +0 ring mail
(3, -1, D:2)
  a +0 flail
(6, -10, D:2)
  a +0 ring mail
(7, -5, D:2)
  an adder corpse (skeletalised by now)
(9, 11, D:2)
  a +0 dagger
(10, 21, D:2)
  3 stones
  a +0 short sword
(14, 12, D:2)
  a +0 club
  a goblin skeleton
(16, 10, D:2)
  a +0 spear
(20, -3, D:2)
  a bat skeleton
(23, 18, D:2)
  a ball python skeleton
(24, -7, D:2)
  a jackal skeleton
(25, -4, D:2)
  a jackal skeleton
(26, -3, D:2)
  a jackal skeleton
(26, 8, D:2)
  a +0 hand axe
(26, 9, D:2)
  a blade talisman
(31, -3, D:2)
  a jackal skeleton
(32, -1, D:2)
  5 stones
  a +0 dagger
(37, -4, D:2)
  a +0 whip
(38, -8, D:2)
  a +0 flail
(38, -4, D:2)
  a +0 halberd
  a gnoll skeleton
(39, -4, D:2)
  a +0 flail
  a gnoll skeleton
(42, -1, D:2)
  a +0 long sword
(43, -2, D:2)
  a +0 ring mail

Level 3 of the Dungeon
(0, 0, D:3)
  a bat skeleton
(2, 12, D:3)
  a ball python skeleton
(5, 10, D:3)
  a +0 club
  a goblin corpse (skeletalised by now)
(9, -4, D:3)
  a +0 club
  a goblin skeleton
(11, 17, D:3)
  a hobgoblin skeleton
(14, 9, D:3)
  a +0 club
(15, 16, D:3)
  a stone
(17, -17, D:3)
  a hobgoblin skeleton
(18, -17, D:3)
  a +0 robe
  a hobgoblin skeleton
(19, -17, D:3)
  a +0 club
  a +0 animal skin
  a +0 club
  a +0 dagger
  the hobgoblin skeleton of Robin
(20, -17, D:3)
  a hobgoblin corpse (skeletalised by now)
  a hobgoblin skeleton
(21, 33, D:3)
  a +0 ring mail
(24, -11, D:3)
  a hobgoblin skeleton
(24, -10, D:3)
  a +0 whip
  an orc skeleton
(25, -8, D:3)
  a hobgoblin skeleton
(35, 3, D:3)
  5 gold pieces
(35, 4, D:3)
  17 gold pieces
(37, 6, D:3)
  7 gold pieces
(41, -13, D:3)
  a +0 hammer
(41, 6, D:3)
  7 gold pieces
(42, 1, D:3)
  8 gold pieces
(43, 1, D:3)
  7 gold pieces
(43, 3, D:3)
  a wand of warping (13)
(43, 4, D:3)
  a potion of lignification
(49, 2, D:3)
  5 stones
(52, 17, D:3)
  a +0 short sword

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 heavy flail
(2, 10, D:4)
  a +0 club
  a goblin corpse (skeletalised by now)
(3, 27, D:4)
  a +0 robe
(5, 9, D:4)
  a +0 giant spiked club
  an ogre corpse (skeletalised by now)