The CAPTCHA series takes the concept of the computer-generated, distorted alphanumerical codes that users have to decipher to prove that they are humans instead of bots as a basis for random abstraction. Pushing painting towards a vision test, they address the problem of a 'correct' reading both in the context of discerning human from computer vision and looking at abstract art. The CAPTCHA's algorithmic nature is opposed to an emotionally driven abstract painting, which tries to reflect the programmed image creation that looks arbitrary but is in truth determined by constructive rules. This inherent contradiction becomes the starting point for an abstract painting method that works in relation to computer graphics, while deliberately abstaining from using it.