IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  2 stones
(6, -33, D:1)
  a +0 leather armour
(6, -30, D:1)
  a +0 club
  a goblin skeleton
(9, -37, D:1)
  a +0 robe
(10, -32, D:1)
  9 stones
(17, -22, D:1)
  a jackal corpse (skeletalised by now)
(18, -22, D:1)
  a goblin corpse (skeletalised by now)
(23, -17, D:1)
  7 stones
(26, -32, D:1)
  a hobgoblin skeleton
(31, -17, D:1)
  a +0 short sword
(37, -30, D:1)
  a +0 club
(42, -39, D:1)
  4 stones
(43, -5, D:1)
  a +0 flail
  a +0 leather armour of willpower
  a gnoll corpse (skeletalised by now)
(46, -29, D:1)
  a +0 club
  a goblin skeleton
(47, -33, D:1)
  a +0 dagger
  a goblin skeleton
(50, -12, D:1)
  a +0 short sword
(54, -24, D:1)
  a +0 hand axe
(54, -18, D:1)
  a ball python skeleton

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 dagger
(2, -10, D:2)
  a +0 short sword
  a kobold corpse (skeletalised by now)
(3, 22, D:2)
  a +0 club
(4, 19, D:2)
  a +0 robe
(4, 32, D:2)
  a +0 whip
(5, -12, D:2)
  a +0 ring mail
(6, -8, D:2)
  a +0 robe
(11, -20, D:2)
  a +0 falchion
(11, 8, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(11, 14, D:2)
  4 stones
(12, -9, D:2)
  a frilled lizard corpse (skeletalised by now)
(12, 8, D:2)
  a ball python corpse (skeletalised by now)
(18, -20, D:2)
  7 stones
(25, 31, D:2)
  4 stones
(38, -5, D:2)
  a +2 hammer of protection
  (unseen)
(38, -3, D:2)
  a +0 hammer
(39, -1, D:2)
  a +0 hammer
(43, 19, D:2)
  a jackal corpse (skeletalised by now)
  a jackal corpse (skeletalised by now)
  a quokka corpse (skeletalised by now)
(44, 22, D:2)
  a jackal corpse (skeletalised by now)
(51, 22, D:2)
  8 stones
(53, -25, D:2)
  a +0 ring mail