IndexError

Level 1 of the Dungeon
(4, -36, D:1)
  a +0 club
(10, -32, D:1)
  a +0 scale mail
(10, 6, D:1)
  a +0 dagger
(17, -5, D:1)
  a +0 dagger
(29, -15, D:1)
  a +0 dagger
(46, 15, D:1)
  a +0 dagger
  3 stones
(55, -33, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  4 stones
(2, -11, D:2)
  a +0 short sword of draining
(2, 1, D:2)
  a +0 robe
  a +0 dagger
  2 boomerangs
  a +0 club
  a +0 short sword
(3, 1, D:2)
  a +0 ring mail
  a +0 mace
(8, -2, D:2)
  a rat corpse (skeletalised by now)
(8, -1, D:2)
  a +0 club
(10, -10, D:2)
  a +0 club
(10, 18, D:2)
  7 stones
(25, 8, D:2)
  a +0 robe
(26, 10, D:2)
  a +0 dagger
(27, -2, D:2)
  2 stones
(35, -8, D:2)
  a +0 whip

Level 3 of the Dungeon
(0, 0, D:3)
  a throwing net {=f, !d}
(3, 9, D:3)
  an iguana corpse (skeletalised by now)
(3, 15, D:3)
  a +0 club
  an orc corpse (skeletalised by now)
(4, 13, D:3)
  6 stones
(8, -13, D:3)
  a +0 club
(9, -13, D:3)
  an adder corpse
(9, 14, D:3)
  a +0 short sword
  an orc corpse (skeletalised by now)
  a hobgoblin corpse (skeletalised by now)
(10, 12, D:3)
  a +0 hand axe
  an orc corpse (skeletalised by now)
(17, -12, D:3)
  a +0 scale mail
(24, -6, D:3)
  a +0 flail
(26, -1, D:3)
  4 stones
(27, 23, D:3)
  a +0 leather armour
(31, 6, D:3)
  a +0 dagger
  an orc corpse (skeletalised by now)