Designed by Bill Cutler 1999, made by Jerry McFarland, level 8.
(left: Walnut, 2.2 inches;
right: Cherry, 2.2 inches)

The 250 billion puzzles of this type were enumerated by Bill Cutler (with a computer). The highest level (moves to remove the first piece) was 8, of which there were 80 different puzzles, where only 3 had only 9 internal voids. One is the GigaBurr, the other two are similar to each other, and one of them is the GigaBurr-2.

To solve, guess the first piece to be removed, put the other two pieces together, and then visualize the third piece in its final position to determine how to get it out (then reverse these steps to assemble the puzzle).

GigaBurr pieces

GigaBurr-2 pieces