Undo

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 club
  a goblin corpse (skeletalised by now)
  a hobgoblin corpse (skeletalised by now)
(1, -2, D:1)
  a +0 hand axe
(6, 34, D:1)
  a rat corpse (skeletalised by now)
  a hobgoblin corpse (skeletalised by now)
  a ball python corpse (skeletalised by now)
(23, -13, D:1)
  a +0 dagger
(23, 21, D:1)
  an elf skeleton
(25, 21, D:1)
  a rat skeleton
(37, -2, D:1)
  a rat skeleton
(40, 39, D:1)
  a +0 club
  a kobold corpse (skeletalised by now)
(43, -14, D:1)
  a +0 spear
(55, 8, D:1)
  a +0 club
(58, 30, D:1)
  a +0 club
  a goblin skeleton
(62, -11, D:1)
  a +0 club
  a kobold skeleton
(64, 1, D:1)
  a rat corpse (skeletalised by now)

Level 2 of the Dungeon
(8, -32, D:2)
  a hobgoblin corpse (skeletalised by now)
(16, -15, D:2)
  a rat skeleton
(21, 16, D:2)
  a ball python skeleton
(25, -21, D:2)
  a +0 club
(27, -20, D:2)
  an adder skeleton
(33, -2, D:2)
  a bat corpse (skeletalised by now)
(33, -1, D:2)
  a jackal corpse (skeletalised by now)
(35, 15, D:2)
  a frilled lizard corpse (skeletalised by now)
(54, -7, D:2)
  a +0 plate armour

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 ring mail
(7, 36, D:3)
  a +0 hammer
(16, 28, D:3)
  a +0 whip
(20, 0, D:3)
  a +0 short sword
(21, 37, D:3)
  a hobgoblin skeleton
(22, 30, D:3)
  a +0 quarterstaff
(24, 1, D:3)
  a +0 scale mail
(24, 34, D:3)
  a ball python skeleton
(28, 33, D:3)
  a +0 whip
(37, 26, D:3)
  a rat skeleton
(37, 27, D:3)
  a +0 mace
  a +0 ring mail
  an orc skeleton
(38, 10, D:3)
  a +0 club
  a goblin skeleton
(38, 11, D:3)
  a +0 club
(39, 6, D:3)
  a +0 dagger
(40, 5, D:3)
  a +1 heavy hand axe

Level 4 of the Dungeon
(2, -27, D:4)
  a +0 plate armour
(7, -21, D:4)
  a staff of cold
(14, -22, D:4)
  a +0 spear
(17, -11, D:4)
  a rat skeleton
(18, -12, D:4)
  a rat skeleton
  a rat skeleton
  a rat skeleton
  a quokka skeleton
  a rat skeleton
  a rat skeleton
  a rat skeleton
  a rat skeleton
(18, -11, D:4)
  a rat skeleton
  a rat skeleton
(20, -35, D:4)
  a +0 short sword
  a kobold corpse (skeletalised by now)
(27, -18, D:4)
  a +0 whip
(38, -25, D:4)
  a +0 club
  a goblin corpse (skeletalised by now)
(39, -45, D:4)
  a +0 dagger
(39, -19, D:4)
  a +0 whip
  an orc corpse (skeletalised by now)
(41, -47, D:4)
  a hobgoblin skeleton
(49, -7, D:4)
  a +0 short sword
(50, -18, D:4)
  a +0 whip
  a kobold skeleton
(50, -17, D:4)
  a +0 short sword
(52, -28, D:4)
  a +0 dagger
  a +0 robe
  a +0 dagger
  a +0 robe
  a +0 club
  a +0 leather armour
  an orc skeleton
  an orc skeleton
(52, -25, D:4)
  a +0 quarterstaff
(55, 5, D:4)
  a ball python corpse (skeletalised by now)

Level 5 of the Dungeon
(5, 23, D:5)
  a +0 short sword
  an orc corpse (skeletalised by now)
(7, 20, D:5)
  a +0 chain mail
(11, 3, D:5)
  an adder skeleton
(28, 11, D:5)
  a hound corpse (skeletalised by now)
(32, 16, D:5)
  5 large rocks
(35, 16, D:5)
  a +0 dagger
(35, 27, D:5)
  a +0 robe
(40, 36, D:5)
  an adder skeleton
(41, 6, D:5)
  a +0 whip

Level 6 of the Dungeon
(0, 2, D:6)
  9 gold pieces
(0, 4, D:6)
  a wand of iceblast (4)
(2, -10, D:6)
  a +0 ring mail
(6, -19, D:6)
  a +0 falchion
(18, -25, D:6)
  a +0 flail
(21, -35, D:6)
  a scroll of identify
(24, -24, D:6)
  a +0 robe
  the kobold corpse of Pikel (skeletalised by now)
(26, -31, D:6)
  a +0 battleaxe
  a +0 robe
(27, -30, D:6)
  a +3 trident
  a +0 robe
(27, -26, D:6)
  an iguana skeleton
(28, -24, D:6)
  a +0 robe
  a +0 spear
  a +0 robe
  a +0 robe
(29, -24, D:6)
  a bullfrog corpse (skeletalised by now)

the Ecumenical Temple

the Necropolis
(1, -4, Necropolis)
  a potion of berserk rage
(2, -1, Necropolis)
  a +0 rapier
(2, 0, Necropolis)
  5 stones
(2, 1, Necropolis)
  a +0 hand axe
(3, 0, Necropolis)
  a +1 helmet of see invisible
  (unseen)