IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 whip
(4, -4, D:1)
  a +0 dagger
  5 stones
(5, -3, D:1)
  a +0 short sword
(11, 7, D:1)
  a +0 mace
(16, 3, D:1)
  a +0 whip
  a +0 club
(37, -4, D:1)
  a +0 dagger
(44, 11, D:1)
  6 poisoned darts
(48, 12, D:1)
  a +0 club

Level 2 of the Dungeon
(3, -4, D:2)
  a +0 dagger
  a +0 dagger
  a +0 short sword
  a +0 dagger
  a goblin corpse
  a goblin corpse
(5, -4, D:2)
  a +0 short sword
  a +0 dagger
  a +0 dagger
  a +0 dagger
  a +0 war axe
  a +0 falchion
  an orc corpse
  a hobgoblin corpse
  an orc corpse
  an orc corpse
(13, 17, D:2)
  a +0 dagger
(32, -3, D:2)
  2 boomerangs
(36, -3, D:2)
  a rat corpse (skeletalised by now)
(40, 27, D:2)
  a +0 short sword
  5 stones
(45, -1, D:2)
  5 stones
(54, 27, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(62, -5, D:2)
  a +0 dagger

Level 3 of the Dungeon
(0, 0, D:3)
  a rat corpse
(0, 1, D:3)
  a +0 scale mail
  a +0 flail
(7, -1, D:3)
  4 boomerangs
(18, 6, D:3)
  6 stones