I've come up with many variations to the Barcode Burr puzzle, most of which are more difficult than the original. I've color-coded the different sets to help distinguish them from one another:

• Barcode Burr (black inserts)
• GrayCode Burr (gray inserts)
• TernCode Burr (orange inserts)
• QuadCode Burr (yellow inserts)
• ExtremeTortureCode Burr (red/orange/white inserts)
• SuperCode Burr (red inserts)
• CoordiCode Burr (blue inserts)
• GreenCode Burr #1 (green inserts)
• GreenCode Burr #2 (green inserts)
• GreenCode Burr #3 (green inserts)
• GreenCode Burr #4 (green inserts)
• CrossCode Burr #1 (white inserts)
• CrossCode Burr #2 (white inserts)
• CrossCode Burr #3 (white inserts)
• CrossCode Burr #4 (white inserts)
• CrossCode Burr #5 (gold inserts)
• PurpleCode Burr (purple inserts)

Each puzzle is available in two versions:

• standard has silver-gray body pieces
• rainbow has color-coded body pieces

The standard version makes for a more difficult puzzle solving experience because you cannot tell which piece is which, whereas the rainbow version helps you tell the pieces apart and easily identify the one you're looking for.

Each puzzle come assembled, except for QuadCode Burr which comes disassembled unless you want to pay an extra $50 assembly fee.

Click below for "More Info" about this family of items, or any of the links in the list above.