IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 short sword
(8, 6, D:1)
  a +0 flail
(12, 1, D:1)
  a +0 club
(14, 2, D:1)
  a +0 short sword
(17, -31, D:1)
  a +0 scale mail
(17, -6, D:1)
  a +0 club
(35, -21, D:1)
  a +0 dagger
(36, -12, D:1)
  a +0 robe
(42, -33, D:1)
  4 poisoned darts
(49, -2, D:1)
  2 boomerangs

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 mace
(0, 15, D:2)
  a +0 club
(4, 17, D:2)
  a +0 dagger
(5, -5, D:2)
  a +0 dagger
(23, -2, D:2)
  a +0 mace
(27, -2, D:2)
  a +0 dagger
(29, 23, D:2)
  a +0 chain mail
(31, -20, D:2)
  a +0 dagger
(34, 17, D:2)
  a +0 short sword
(35, -20, D:2)
  a +0 dagger

Level 3 of the Dungeon
(0, 0, D:3)
  5 poisoned darts
(6, 5, D:3)
  a +0 short sword
(6, 13, D:3)
  2 stones
(7, 2, D:3)
  6 stones
(9, 20, D:3)
  a +0 short sword
(11, 0, D:3)
  a +0 falchion
(11, 28, D:3)
  a +0 dagger
(16, 21, D:3)
  a +0 ring mail
(22, 25, D:3)
  a +0 short sword
(24, 25, D:3)
  a +0 leather armour
  a +0 whip
(31, 5, D:3)
  a +0 club
(32, 5, D:3)
  a +0 dagger
(33, 4, D:3)
  a +0 dagger
(34, 2, D:3)
  a +0 dagger
(34, 3, D:3)
  a +0 dagger
(36, 1, D:3)
  a +0 dagger
(37, -1, D:3)
  a +0 sling
  a +1 dagger of freezing
  a +0 short sword
(38, -3, D:3)
  a +0 dagger
(38, -1, D:3)
  a +0 dagger of electrocution
  a +0 animal skin
  a +0 club
(39, 11, D:3)
  a +0 club
(46, 2, D:3)
  a +0 dagger
  a +0 dagger
  a +0 club
(47, 38, D:3)
  a +0 leather armour
(51, 2, D:3)
  5 stones
(51, 44, D:3)
  5 stones
(56, 14, D:3)
  3 poisoned darts
(58, 5, D:3)
  an orb of guile

Level 4 of the Dungeon
(0, 0, D:4)
  a potion of might
(5, 0, D:4)
  a scroll of identify
(7, 1, D:4)
  an adder corpse
(12, 23, D:4)
  a +0 short sword
(14, 0, D:4)
  an adder corpse
(19, 0, D:4)
  a jackal corpse
(27, -2, D:4)
  a +0 short sword
  5 stones
  a kobold corpse
(32, 5, D:4)
  a dart slug corpse
(39, 18, D:4)
  a +0 dagger
  a goblin corpse
(40, 32, D:4)
  a +0 sling
  a +0 club
  a goblin corpse
(44, 37, D:4)
  a quokka corpse