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Raven's Progressive Matrices or similar puzzles: visual designs with a missing piece, often a 3x3 matrix with a corner missing, and a number of choices to pick from and fill in the missing piece

10 votes
3 answers
1k views

Progressive matrix puzzle - lines inside squares

Here's a grid of shapes: Which of the following shapes should go in the missing cell, and why? There is only one correct answer, and the explanation should not be very complicated. This is my own pu …