a live 1v1
Find the color
You both see the same color. Drop a pin where it lives on the map of color space: hue around the rim, light in the middle, dark at the edge. Each guess scores 0 to 5,000 by how close its color is, and the closer guess wins the round. Everyone starts with 5,000 HP; the worse guess loses the score gap, the multiplier climbs every round, and the first to 0 loses.
looking for an opponent...
no one looking for a duel right now
the board. Zoom in and the cells split; the answer is the cell the color lives in. Zoom all the way in: the finest cells are the ones that score.