IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(4, 2, D:1)
  a +0 dagger
(7, 1, D:1)
  a +0 dagger
(21, 15, D:1)
  a +0 long sword
(22, 14, D:1)
  a +0 leather armour
(25, 11, D:1)
  a +0 short sword
(26, 10, D:1)
  a +0 short sword
  2 stones
(27, 19, D:1)
  a +0 club
(32, -35, D:1)
  a +0 dagger
  a +0 club
(33, -30, D:1)
  4 stones
(39, -32, D:1)
  a +0 club
(40, -21, D:1)
  2 poisoned darts
(44, -9, D:1)
  a +1 helmet
(47, -31, D:1)
  5 stones
(50, 17, D:1)
  a +0 chain mail
(52, 14, D:1)
  5 stones

Level 2 of the Dungeon
(8, 11, D:2)
  a +0 dagger
  a +2 robe of positive energy
(14, 9, D:2)
  a +0 club
  a +0 dagger
(16, 0, D:2)
  7 stones
  a +0 club
(25, -12, D:2)
  5 boomerangs
(28, 19, D:2)
  a +0 spear
(31, -8, D:2)
  a +0 club
(33, 7, D:2)
  a +0 ring mail
(35, 5, D:2)
  a +0 ring mail

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 ring mail
(1, 6, D:3)
  a +0 scale mail
(3, 30, D:3)
  a +0 chain mail
(6, 0, D:3)
  a +0 whip
(12, -5, D:3)
  a +0 hand axe
(14, 27, D:3)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(20, 1, D:3)
  a +0 leather armour
(29, 16, D:3)
  a +0 hand axe
  an orc corpse
(32, 3, D:3)
  a quokka corpse
(33, 25, D:3)
  a +0 dagger
  a kobold corpse (skeletalised by now)
(41, 21, D:3)
  a +0 dagger
(44, -8, D:3)
  an adder corpse
(45, -14, D:3)
  6 stones
(45, 9, D:3)
  a +0 club
  a +0 leather armour
  12 gold pieces
  an orc corpse