How do I use findContours to find exact count [closed]

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This is my original image

I have detected total 6 approximate squares in this image shown below using cv2.findContours if we count as seen on the detected image below with bounding box around them.

I checked this Contours Hierarchy

Tried out all the Hierarchy mentioned in the above link to get only 6 contours but least contour being detected is 10

I just need to detect 6 squares as can be seen and counted, not the entire family GrandFather GrandMother Father Mother etc

Can anyone help me out here?