Automatically fills the captcha field when displaying a geochecker from https://geocheck.org
It always is a slight PITA to fill the captcha field, especially when the digits used look nearly identical in some cases, but aren't - like 1 and 7.
Therefor this little script determines the correct captcha and fills out the form automagically. Further restrictions still apply not to exceed 10 guesses in 10 minutes, so this should not be too big of a problem regarding abuse of the geochecker.
There is nothing illegal about filling a captcha field automatically as opposed to cracking a password. Captchas are used to slow down traffic just like speed bumps, not to keep people out of a computer system. Figuring out how a captcha works and filling out the form if you are otherwise authorized to use the server is perfectly legal.
Do not use this script to break the "10 guesses in 10 minutes" rule
The author shall not be liable to you for any loss, cost, claim, damage, demand or expense of whatsoever nature you may suffer or incur in connection with using this script.
There is no warranty whatsoever that script will work at all in the future or will cause any problems when using it. Furthermore there is no guarantee for support or correction in case of this script not working any more.
parts of this script have been optimised after (oops, search first then post) finding a version made by technetium: https://greasyfork.org/de/scripts/377402-geocheck-auto-captcha