Both versions are possible.
Student or Learner
"A man must consider what a blindman's-bluff is this game of conformity."
Context doesn't matter because the question is just about the term "blindman's-bluff" in itself. In my dictionary that children's play when one has blinded eyes and tries to catch another one is spelled "blindman's-buff" (without a letter "l" in the "buff"-word). So are there two options possible or is there some kind of mistake, or... again an old version of the term?
By the way, how do you do this trick that some word (expression) of your message acts as an internet link...
Highlight the URL - in this case http://en.wikipedia.org/wiki/Blind_man's_buff - then press Ctrl C.
Type 'Both versions are possible'. Highlight Both versions and click on Insert Link (next to the colour selector).
Enter the URL by pressing Ctrl V then OK.
Hope that helps.
Well. I find it pretty significant and powerful skill I achieved here and I am really grateful for your contribution to it.
You're very welcome.