Efficiency

Level 5 of the Dungeon
(0, 0, D:5)
  a +0 hand axe
(10, 9, D:5)
  9 gold pieces
(12, -1, D:5)
  4 gold pieces
(12, 8, D:5)
  a potion of heal wounds
(17, 4, D:5)
  a +1 hat
(17, 6, D:5)
  a scarf of harm

Level 6 of the Dungeon
(0, 0, D:6)
  a +0 robe
(7, -5, D:6)
  15 bolts
(12, 0, D:6)
  14 gold pieces
(13, -12, D:6)
  17 bolts
(17, -2, D:6)
  19 poisoned darts
(17, 0, D:6)
  7 gold pieces
(19, -22, D:6)
  a scroll of enchant weapon
(25, -20, D:6)
  a scroll of identify