The user is shown the grid of images. They must click on all the cats, and only the cats. Since there may be 1, 2 or 3 cats in a set of 25, that makes (if I remember my stats correctly) 25*24*23 = over ten thousand potential answers, of which only one is correct - so less than 0.01% chance of a bot getting an answer correct.
(and if there can be more than 3 cats, which is possible, then it makes the odds even slimmer) >And? How does that answer my question? I don't get it. Remember I've not >read the whole site (I don't have time right now). I was hoping that >someone could sum up the process. So, I think I understand from your >reply that the user isn't shown just one image and asked if it's a cat >or a dog. So what does happen? > >Thanks, >Chris > >Peter Boughton wrote: >> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Macromedia ColdFusion MX7 Upgrade to MX7 & experience time-saving features, more productivity. http://www.adobe.com/products/coldfusion Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:272533 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4

