Version 1.0 wasn't really a Release, more a stable beta, i would say afterwards.
sorry.
1.1 should be much better.

added a frame, where you can see, whos turn it is.
changed parts of the code
localised it in english (well, wasn't hard work)

known bugs:
you can overwrite already marked buttons, i tried to forbid this, but it didn't work, maybe there is a typo in the code or so, i don't know.

ehr, what is a caveat?
the dictionary said "Einspruch", but in this context, this is stupid.
"bekannte Einsprüche"?
when i know, what it is, i will edit this part

)