Undo

Level 1 of the Dungeon
(0, 0, D:1)
  a kobold skeleton
(8, -22, D:1)
  a +0 robe
(8, -17, D:1)
  a ball python skeleton
(37, 1, D:1)
  a +0 short sword
  a kobold skeleton
(37, 4, D:1)
  a +0 dagger
(42, -31, D:1)
  a hobgoblin corpse (skeletalised by now)
(43, -36, D:1)
  a ball python corpse (skeletalised by now)
(44, -8, D:1)
  a hobgoblin skeleton
(44, -7, D:1)
  a +0 club
(44, -2, D:1)
  a +0 ring mail
(52, -13, D:1)
  a +0 scale mail
(58, -34, D:1)
  a +0 short sword

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 dagger
(3, 14, D:2)
  a ball python corpse
(6, 6, D:2)
  a hobgoblin skeleton
(10, 23, D:2)
  a bat skeleton
(11, 1, D:2)
  a hobgoblin skeleton
(12, -2, D:2)
  a +0 short sword
  a kobold skeleton
(12, 0, D:2)
  a +0 short sword
(17, 7, D:2)
  a +0 leather armour
(19, 19, D:2)
  a +0 club
(21, 23, D:2)
  a +0 club
  a +0 short sword
  a kobold skeleton
(26, 12, D:2)
  a frilled lizard skeleton
(29, 20, D:2)
  a +0 mace
(46, 5, D:2)
  a +0 hammer

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 short sword