This puzzle pieces are made by joining half cubes. I guess original idea belongs to Toshiaki Betsumiya. He was designed Gemini puzzle for Naef spiegel AG. This company has very nice products. You can see some of their other puzzles fom Rob’s puzzle page. Gemini puzzle is aiming to make a 4x4x5 block fom a mathematical set made by joining half cubes. After Stewart

Coffin was designed “Split cube”. He was designed a 4x4x4 cube by using some pieces of this mathematical set.

And lastly I designed my own puzzle “Half cubes” by using some other pieces of this mathematical set. This puzzle has four solution. Puzzle pieces are here,

For making this puzzle you must cut 16 half cube. For this purpose I used a 40×20 mm ready stock and I cut 40x40x20 mm pieces with my hand miter saw. If you glue first 7 th pieces (bottom line third piece) you can use this piece as a jig for gluing other pieces. Another easy to make and difficult to solve puzzle. If you need solution you can preview or download this free PDF file including pieces photos and solution from here.** ( 0.3 MB on secure server box.com)**