Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The LL Sudoku (LL) is indicated by green edges. Initial filled-in cells had a gray-colored background. After a block ends, it continues to a screen which asks participants to fill in the subjective ratings. A video distractor is played continuously in the top right of the screen.
