ou've got to be very fast viewing the colors and shapes. For instance, the yellow gems are triangles and the purple ones heart-shaped.
Starting out all the gems appear on a square board, but as you move through the different levels the board changes shape. This makes it harder to get three in a row, though certainly not impossible.
To help you keep moving forward, certain special gems will appear that make it easier to put three or more in a row. To get these gems you've got to push through lots of phases, though.
Jewel Gems Hidden Treasure is the perfect game to while some time away. Give it a shot!