How to use the 16-type pairing chart
Select one four-letter type on the left and another across the top. A linked cell opens the guide for that pair. The same pair appears in both directions, so choosing INTJ × ENFP or ENFP × INTJ leads to the same guide.
The diagonal marks two people with the same type. There is no separate pair article for those cells. A shared type code still does not mean two people communicate, make decisions, or build a relationship in the same way.