GloHid BVC is a vertical stone‑identification challenge game that combines observation, comparison, and strategic decision‑making. Players choose one of four raw stones that might contain genuine jade, then tap to reveal the interior. A blue‑green glow or green veining usually indicates good jade, while yellow light, white frost, or cracks mark a worthless stone. Guessing correctly earns points and advances to the next round; a wrong guess adds to the mistake count, and three mistakes end the round. As the score rises, the appearance of genuine jade and worthless stones becomes increasingly similar, testing your eye and judgment. The rules are simple, yet the challenge grows with every round.