Repeating CAPTCHA.

Has anybody noticed that when you need to answer the CAPTCHA puzzle before you can post on a forum, you almost always need to figure out the Scholar's Mate? It would be more interesting if Lichess were to switch it up into different checkmate formats.

CAPTCHAs Puzzles are very easy as its just to check human/robot.

CAPTCHAS only have one purpose, they are only to make sure a robot is not posting in the forum and it is a human. So they are relatively easy.