Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  14 gold pieces

Level 2 of the Dungeon
(0, 0, D:2)
  12 gold pieces
(2, -12, D:2)
  12 gold pieces
(3, -1, D:2)
  10 gold pieces

Level 6 of the Dungeon
(0, 0, D:6)
  a +0 mace
(1, -6, D:6)
  18 arrows
(2, -14, D:6)
  a potion of heal wounds
(5, -2, D:6)
  24 stones