Undo

Level 1 of the Dungeon
(0, 0, D:1)
  a bat corpse (skeletalised by now)
(4, 33, D:1)
  a +0 sling
(4, 40, D:1)
  a rat skeleton
(5, 22, D:1)
  a ball python corpse (skeletalised by now)
(6, 39, D:1)
  a +0 ring mail
(9, 31, D:1)
  4 stones
(10, 2, D:1)
  a +0 club
(10, 33, D:1)
  a +0 robe
(10, 35, D:1)
  a +0 spear
(11, 29, D:1)
  a +0 club
  a goblin skeleton
(14, 17, D:1)
  a rat skeleton
(15, 8, D:1)
  a +0 short sword
  2 stones
(28, -3, D:1)
  a bat corpse (skeletalised by now)
(31, 18, D:1)
  a +0 dagger
  5 stones
  a kobold skeleton
(31, 23, D:1)
  a rat skeleton
(35, 25, D:1)
  a +0 dagger
(36, -1, D:1)
  a +0 leather armour
(37, 11, D:1)
  5 stones
(37, 28, D:1)
  a +0 spear

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 falchion
(10, -26, D:2)
  a bat corpse (skeletalised by now)
(12, -27, D:2)
  a ball python corpse (skeletalised by now)
(13, -45, D:2)
  a +0 sling
(15, -37, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(18, -43, D:2)
  a ball python corpse (skeletalised by now)
(18, -37, D:2)
  a +1 mace of draining
  a +0 animal skin
(19, -37, D:2)
  a +0 dagger
  a +0 dagger
  a +0 club
  a goblin corpse (skeletalised by now)
(20, -37, D:2)
  a +0 club
  a +0 club
  a goblin corpse (skeletalised by now)
(21, -37, D:2)
  a +0 club
  a +0 dagger
  a goblin skeleton
(22, -37, D:2)
  a +0 sling
  a +0 club
  a +0 dagger
  a goblin skeleton
(22, -1, D:2)
  a +0 club
(32, -48, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(33, -23, D:2)
  a +0 dagger
  5 stones
(36, -29, D:2)
  a +0 robe
  a hobgoblin skeleton
(36, -4, D:2)
  4 stones
(37, -4, D:2)
  a +0 dagger
(41, 7, D:2)
  a bat corpse (skeletalised by now)
(42, -3, D:2)
  a +0 robe

Level 3 of the Dungeon
(0, 0, D:3)
  a rat corpse (skeletalised by now)
(9, 3, D:3)
  a +0 quarterstaff
(11, 18, D:3)
  a quokka skeleton
(11, 20, D:3)
  a +0 club
  a goblin skeleton
(13, 9, D:3)
  a +0 club
(16, 2, D:3)
  a +0 club
  a +1 dagger of flaming
  a goblin skeleton
  a goblin skeleton
(24, 5, D:3)
  a ball python skeleton
(41, -4, D:3)
  6 stones
(41, 1, D:3)
  an adder skeleton
(42, -4, D:3)
  a staff of air
(43, 0, D:3)
  an adder skeleton
(43, 11, D:3)
  a +0 whip
(43, 17, D:3)
  a +0 hand axe
(47, -5, D:3)
  a +0 quarterstaff
  a +0 short sword

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 dagger
  a +0 robe
(0, 1, D:4)
  a +0 club
  a +0 scale mail
  a +0 leather armour
  a +0 falchion of flaming
(0, 4, D:4)
  a +0 whip
(4, 8, D:4)
  a +0 robe
(21, 5, D:4)
  a +0 dagger
  2 stones
  a kobold skeleton
(36, -3, D:4)
  a +0 robe
(46, -12, D:4)
  a +0 rapier
(46, -11, D:4)
  a ball python skeleton
(52, -11, D:4)
  a +0 giant club

Level 5 of the Dungeon
(0, 0, D:5)
  6 stones
(1, -27, D:5)
  a +0 club
(2, -33, D:5)
  a +0 giant club
  an ogre corpse (skeletalised by now)
(3, -6, D:5)
  a +0 falchion
(13, -19, D:5)
  a +0 club
(16, -30, D:5)
  a +0 chain mail
(18, -5, D:5)
  a +0 leather armour

Level 6 of the Dungeon
(0, 0, D:6)
  a +0 great sword
  a +0 robe
(1, 0, D:6)
  a +0 hand axe
  a +0 robe
(2, -11, D:6)
  14 gold pieces
(8, -1, D:6)
  a potion of lignification
(8, 4, D:6)
  11 gold pieces
(11, -16, D:6)
  a hound corpse
(18, -18, D:6)
  5 stones
(18, -2, D:6)
  a scroll of identify