Title is grammatically wrong (mixed singular with plural.
Beyond that:
interesting game, original game play on the match concept.
Easy to understand, hard to master.
suggestions:
I'd maybe add more time per correct find.
The hexagons were too similar in color, maybe change one of them a bit?
Or even eliminate one, don't need to have the 2 of them.
Conclusion: one of the better games I've seen on Newgrounds, but still could use some improvement.