LinkedIn Patches 213 answer, 16 October 2026: a 3 by 1 rectangle at row 1, column 3; a 2 by 3 rectangle at row 1, column 1; a 2 by 2 rectangle at row 2, column 4; a 1 by 2 rectangle at row 2, column 3; a 1 by 3 rectangle at row 4, column 5; a 4 by 4 rectangle at row 4, column 1; a 2 by 6 rectangle at row 1, column 6; a 3 by 1 rectangle at row 7, column 5. Answered 07:03 UTC