Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  20 arrows

Level 2 of the Dungeon
(0, 0, D:2)
  13 gold pieces
(9, 3, D:2)
  a +0 club
(13, 9, D:2)
  20 arrows
(16, 18, D:2)
  9 gold pieces
(24, 5, D:2)
  10 gold pieces
(34, -7, D:2)
  a +0 robe
(35, 11, D:2)
  26 stones
(37, 15, D:2)
  12 gold pieces
(41, 9, D:2)
  5 stones

Level 3 of the Dungeon
(0, 0, D:3)
  16 stones
(2, -4, D:3)
  a potion of haste
(3, -12, D:3)
  an arrow
(4, -13, D:3)
  19 stones
(14, -19, D:3)
  10 gold pieces
(18, -19, D:3)
  a +0 robe