Rules:
The 28 dominoes have been arranged into a 7 by 8 rectangle on the left.
The actual placement of the dominoes has been omitted. You are to find
a placement of the dominoes that works by outlining each domino,
clicking on the lines that separate the dominoes. On the right, there
is a table that gives for each domino exactly how many possibilities
remain for the placement of that domino. This is for your information
only. There may be many solutions. You are only required to find one of
them.
Instructions.