Did you get it right?
Choose the patch that continues both the alternating colors and the diagonal direction.

The Answer
The correct answer is: patch 2.
Here is why
- Every filled square uses the same diagonal direction: color at upper left and cream at lower right.
- The colors alternate red and blue across each row and down each column.
- The missing position requires a red upper-left triangle with a cream lower-right triangle.
- Only patch 2 satisfies both rules.
Why people miss it
Choices 1, 3, and 4 each preserve one visual feature while breaking either the color alternation or diagonal direction.
What answer did you get before checking?