He asked 1 question and 17 people chimed in.
https://en.wikipedia.org/wiki/Law_of_triviality
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Under a different account I posted 4 similar, but certainly not identical, Maroczy positions (arrived at by different openings) and asked strong players to help me understand the subtle differences.
Not a surprise I got zero replies.
But post a topic about how your opponent made an illegal pawn move that made your pawn disappear and 20 people will copy-paste wiki's en passant article for you, including titled players.
You are correct, but sometimes perverse connotations are part of the intent.
I've always used the American version of the word. I'm a gun totin' western American liberal redneck. French ain't my language.
Poseur is less problematic unless one already has a reputation for being too erudite, i.e., "arrogant" in a chess forum.
Well, I sure don't tote guns. Sometime I tote a water bottle. Being too erudite has definitely never been one of my character flaws.
Thanks.
Of course, I might also look through some dictionaries.
I think the French spelling does not work as well for my usage to refer to internet sites put up by non-experts. It seems to stress the vanity aspect. A lot of people put up information out a genuine desire to be helpful. Many of them do not comprehend their own lack of expertise.
This week I reviewed a chess book on Amazon. The author enjoys chess, has played a long time, and has taught others. He is no poseur.
Even so, he gets a lot wrong. His chess book is full of bad advice and confused explanations of the rules (even worse than what our OP found at jimmyvermeer). For example, he says the queen can move any direction. I would prefer to be more specific, noting along ranks and files, otherwise the knight's move might seem allowable for the queen.
He might be the strongest chess player in his social circle and the most knowledgeable. As he has no tournament experience, his chess skill has not been objectively tested. As a chess author, he is a poser. Calling him a poseur has implications of deliberate efforts to seem someone that he knows he is not. He means well, but he's wrong.
Good question. My answer might keep changing.
I generally only tote guns at the range or while hunting. They are not allowed where I work (teaching history one place and chess another) and I respect that.