Polygon Puzzle

多邊形拼圖 - 拖動一塊拼圖，以填補董事會，樂趣!!!!

Drag the puzzle piece on below section and try putting them upon to fill the board. When parts were intersected, you would not be able to put it down. There would be a red frame flashing under your grabbing piece which indicates the current rectangle area of your dropable area.