Idea for captcha. Font generation

All the captcha creation techniques I saw were based on the use of ready-made fonts and their distortion. As a result, spambots admins only needed to replenish the font bases in time and rotate each letter, trying it to the letter on the captcha.

But I came up with a puzzle much harder. Although this could have existed before, the benefit of the idea is not so difficult-coming.



I propose to generate all the letters of the captcha, according to the special laws of construction.

For example, the letter A, the scheme of work is approximately as follows:





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How do you rate this approach? Any prospects?