There is no black Invisible.
Why does the second solution work? I think the black Invisible could be a black Vao e3, so perhaps 3.I~~…
I apologize for this very late reply. Somehow I missed the thread after some point and didn't know what was…
hm... 325 pages. 251 problems! Less than 1 problem per page. Interesting ..... should have lot of reading matter, esp.…
http://pdb.dieschwalbe.de/search.jsp?expression=PROBID=%27P1307896%27
Oh sorry, yes - you're right: I was referring to the Millour book!
see--> http://pdb.dieschwalbe.de/search.jsp?expression=PROBID=%27P1307705%27
I find the text of the book very entertaining, with comments by RJM in his personal style mixed with quotes…
Nice write-up! Makes me want to attend the next Congress. Maybe, perhaps ..........
I also remember my first Congress meeting (Benidorm 1990) still although it had been 25 years ago. I had also…