8... Bg4 - This move violates an opening principle:Don't lose time by moving the same piece twice.Evans in The 10 Most Common Chess Mistakes
16... b6 - violates the so-called Golden Rule:Don't move a pawn until you are forced to. The reason for this is that a pawn once moved offers a target and creates structural weaknesses.Pritchard in The Right Way to Play Chess
8... Bg4 - This move violates an opening principle:
ReplyDeleteDon't lose time by moving the same piece twice.
Evans in The 10 Most Common Chess Mistakes
16... b6 - violates the so-called Golden Rule:
ReplyDeleteDon't move a pawn until you are forced to. The reason for this is that a pawn once moved offers a target and creates structural weaknesses.
Pritchard in The Right Way to Play Chess