LinkedIn Patches 29 answer, 15 April 2026: a 2 by 2 rectangle at row 1, column 1; a 3 by 3 rectangle at row 1, column 4; a 1 by 3 rectangle at row 1, column 3; a 3 by 3 rectangle at row 4, column 3; a 2 by 4 rectangle at row 3, column 1; a 1 by 3 rectangle at row 4, column 6. Answered 07:00 UTC