How to spot the Y-wing technique in classic sudokus?

A beautiful diamond themed classic sudoku by R Kumaresan has the Y-wing technique perfectly exploited. Can you spot it ? Check out the video on how to go about spotting Y-wings.

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Rules :
Place a digit from 1-9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 outlined box.

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I am Kishore Kumar Sridharan and I have been part of the team representing India in the World Sudoku Championship each year since 2015. I have also won the Classic Sudoku Master Event held during the Indian Sudoku Championship for a streak of 4 successive times. Solving sudokus and puzzles is my passion.

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Видео How to spot the Y-wing technique in classic sudokus? канала Unshackling Sudokus & Puzzles