Rick Eason

Note that pieces ** A**,

**Double-Hole Pin Cube II** uses
all the above pieces except piece ** M**.

**Objective:**
As with the Double-Hole Pin Cube, the objective
for each puzzle is to form a 3x3x3 cube with the 9 pieces. Each puzzle
has a single solution. The solutions are considerably different. Fortunately,
a little logic can go a long way in solving them.

I really hate to give out the actual
solution, as I don't want to rob you of the satisfaction of solving the
puzzle yourself. If what you want to do is put the pieces in a **nice
form for storage**, then please consider using a pseudo
solution which will fit the pieces in a 4x3x3 box. In this form a single
rubber band will hold it together. I don't think this solution will give
you any hints about the real solution. However, if you really really must
know the real solutions, they can be found here.

**Bonus Problems:**
Pack the 9 pieces of **Double-Hole Pin Cube II** into each of the two
shapes below. There is one solution to each packing. The solution to Bonus
1 is given here and the solution to Bonus
2 is given here. Note that these are the
only two ways in which this puzzle can be packed in a 4x3x3 box such that
all holes are occupied by a pin. Of course there are 9 empty cube locations.
(Solutions that involve simply creating the 3x3x3 cube and dropping it
in the box don't count.) The **Double-Hole Pin Cube III** has no solution
to the 4x3x3 problem.

Bonus 1 |
Bonus 2 |

Soon to come: individual pseudo solutions and solution logic.

I have a few of these puzzles left (made with maple). I prefer to swap for other puzzles of comparable value, but might consider selling. Email puzzles1@mechanicalpuzzles.org.

© 2000, Richard Eason