George is at it again this week. He's given us a link over here if you wish to open this as a pdf. The pdf has a clickable .xmpuzzle files for your pleasure. The .xmpuzzle files need to be downloaded for viewing. Hint: you'll also need Burr Tools.
Here is a preview:
The latest puzzle to catch my attention is one called 48 Queens on 8 Cards which was published in Japan and designed by Hisayoshi Akiyama. It comes on 8 cards which can be laid down into an 8x8 array of colors and spaces. Each card is a 2x4 array containing exactly 6 different colors and 2 spaces.
Mr. Akiyama (the inventor) writes “You know of the famous ‘8 Queens Problem on a chess board’. This puzzle is a new variety of multi-queens problem. There are 8 cards, each one has six different color spots. In this puzzle, I mean the same color spots as Queens to be hostile to each other, and different color spots as queens to be ignored with each other”.