How to play Gems Multiplication Table.
There are 10 types of gems, representing every column from the Multiplication table. Clicking on a gem, will unlock one equation from every group, as long as the group is completed. When all multiplication groups are completed,
the game is won and new Knowledge Level is achieved.
Know the Multiplication Table.
Winning the game rewards +1 Knowledge Level
The download version(bottom of the page) include an executable file for Windows OS with local levels only.
Here is a gameplay movie on YouTube.