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Yup. I could guess what needs to be grabbed without reading the prompt because it was always the front-most object. It also has the largest grab area; some of the plushies can't even be grabbed.

Fun idea though

I can bypass this captcha just by using gemma4

Not only on the front layer, but mostly in the centre too. I just tested it a bunch of times and the overwhelming majority it worked without even moving the claw, it was just grab and release.

You don’t need to train it just ask current state of model.