Which area is brighter?

A
B
Both are the same
It depends on the order of seeing
This is the well known checker shadow illusion, first published in 1995 by Edward H. Adelson, Professor of Vision Science at MIT. The area A appears darker because of its light surrounding. At the same time, area B, surrounded with dark areas, appear lighter.
globalquiz.org
0
Correct this question
8
Very interesting!
reach: rather globalillusionsoptical illusionsopticstechnology

Answers by country

A
B
Both are the same
It depends on the order of seeing
answers
flagthe Netherlands
0%
0%
76%
7%
13
flagthe United States
8%
5%
74%
9%
699
flagAustralia
14%
1%
74%
7%
67
flagCanada
12%
6%
74%
4%
47
flagthe Philippines
13%
3%
73%
6%
30
flagBelarus
8%
8%
73%
8%
23
flagGermany
9%
11%
70%
6%
131
flagPoland
8%
13%
69%
7%
18174
flagMalaysia
23%
0%
69%
7%
13
flagthe United Kingdom
12%
10%
68%
6%
177
flagGreece
8%
12%
68%
12%
25
flagAustria
4%
21%
65%
8%
23
flagRussia
6%
15%
61%
15%
91
flagUkraine
7%
18%
60%
13%
134
flagKazakhstan
8%
16%
58%
8%
12
flagIndia
12%
9%
55%
18%
259
flagSwitzerland
7%
30%
53%
0%
13
flagSouth Africa
54%
0%
45%
0%
11
flagUnknown
21%
5%
42%
31%
19
flagthe United Arab Emirates
27%
27%
36%
9%
11