Similar to the puzzles of Toroid X, the puzzles of Gaean Reach contain two different basic gem types, which are arranged in quadrilateral formations and in checkered patterns. While the third and fourth puzzles of this planet have red and white gems, the other puzzles have blue and white gems instead.
Completing any four of Gaean Reach's five puzzles unlocks Virago Ceti, the next planet in Puzzle mode.
- The fifth puzzle of Gaean Reach is the only one in Puzzle mode in which the game board is completely filled with gems.
- It is also the only puzzle in which using the Hint button does not indicate any possible matches. This is most likely because the puzzle can be solved in various ways as opposed to it having a direct solution.