Dino Cube first mass-produced version had pictures of dinosaurs depicted on each piece, which led to the adoption of the puzzle's current name of "Dino Cube". It is not known what the puzzle had been called before this dinosaur version was introduced. The later versions, however, adopted the practice of using standard single-colour stickers, in common with most other twisty puzzles. The Dino Cube is a twisty puzzle in the shape of a cube. It consists of 12 movable pieces, all of which are located on the edges of the cube. The puzzle can be thought of as twisting around its corners:
The Carnelian Cube humor, the less said the better". Frederik Pohl, writing in "Super Science Stories", praised the authors as having "produced some of the funniest fantasies ever to see print." Noting that ""The Carnelian Cube", almost alone among fantasy books, has never been published in magazine form" he "wonders how the magazines missed it." "Thrilling Wonder Stories" praised the novel as "earthy, talkative, [and] frequently witty," saying "The authors have given full range to a pair of highly fertile imaginations and the reader does not suffer thereby." "Fantasy Review"'s Kemp McDonald faulted the novel as scattershot and plotless, saying that "Characters and