Checkerboard Puzzle - Only 12 pieces

thingiverse

Another checkerboard dissection puzzle: Put the 12 pieces together to form a 8x8 checkerboard with correct pattern. The pieces are one-sided. The puzzle is called "Checkerboard Puzzle - Only 12 pieces" and was mass produces around the 1940s. It was produced by different companies using different names for the same puzzle: "All Square Novelty Puzzle", "Check-A-Board", "Tyr & Do It" and more. For more historic information about the puzzle, see Jim Storer's puzzle page at www.cs.brandeis.edu/~storer/JimPuzzles. If you can read German: Mehr Informationen gibt es https://welt-der-geduldspiele.blogspot.com/search?q=3D-Druck Printing instructions: The main color (usually black) is used for the pieces and half of the caps. A second color is needed for half of the caps for the checkerboard pattern. The caps can easily be snapped onto the pieces. For the 13 pieces you need * 2 copies of part 12 (Z5), printed in the main color; * 1 copy of the remaining ten parts, printed in the main color; * 32 caps printed in the main color, * 32 caps printed in the second color. A tray for the 8x8 checkerboard also is provided. Prints are fine with no supports. Snap the caps onto the different parts as in the picture. The caps are printed upside down, so the pieces will have a very flat surface. Be sure to use the correct checkerboard pattern for the pieces. I printed the puzzle in PLA at 0.1 mm layer height. Puzzle difficulty: The puzzle may look easy, but is definitely not. Expect to spend a couple of hours to find a solution. Here is a warning: There is only one solution.