OT Colour test challenge

[Tim Lamb]

What happens if you do the same photoshop job with the square adjacent to B?

There are no brains at home, young enough, to do this for me:-)

[John Rumm]

What, one of the "dark" ones?

Where do you want me to relocate it?

In the mean time, try this - I chopped the top off and overlaid it with a bit of perspective bastardisation.

[soup]

Nope I got 102. now when I was at school 102 was definitely 'above'

100. I finished the test but was fed up/bored so finished it early hence the remarkably low score despite not being colour blind.

[Tim Lamb]

Umm.. further confusion.

The point my brain is struggling to overcome is that A appears to be a

*dark one* with ALL the artefacts that might lead to an illusion covered apart from the shadow cast by the cylinder.

Too clever to spot anyway. I have tried punching holes in bits of paper etc.

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[alan]

The illusion is that not all the dark squares are necessarily the same and all the light squares are the same but the 2 selected squares are the same. Holes in a bit of paper to convince you....

[alan]

or if shading across the object is the confusion

[John Rumm]

Indeed - I just took the top of the picture having cut it through the middle of B and moved it down so that you can see the original A adjacent to the bottom half of B. You can also see the top of B against one of the dark squares at the bottom.

Try printing it, then attack with scissors.

[Tim Lamb]

OK. Enough already:-)

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[Harry Bloomfield]

Then its a rather odd site - why make the max 102, rather than the more sensible 100 and why not say the max is 102?

[dennis]

Because 102 isn't the max.

[ARW]