Letter Mahjong

For all puzzle lovers, we present the game Letter Mahjong in which we will solve the Chinese puzzle mahjong.
It is dedicated to the letters of the alphabet.
Before you on the playing field you will see game chips on which various letters of the alphabet will be applied.
They will be piled up and can form various geometric shapes.
You will need to carefully examine the playing field and find two identical items.
After their discovery, click on them with the mouse.
So you select them and they disappear from the screen.
Your task is thus to clear the playing field completely.