Mechanical Error - other side of the bidding box
In a competitive auction, opponents get as far as 4H. Partner pulls out a 4S card, puts it on the table, looks down and say “oops sorry, I meant to double, I pulled the wrong card.” Opponents seem concerned so I suggest that they should call the director. He rules that 4S would not be mechanical error because it came from the other side of the box from the intended double. This is, of course, accepted without demur; I am interested to learn, however, whether that is a standard interpretation and one which I should apply when directing.
What I found so far, looking through the forum, is this comment from Robin in 2018:
“It is difficult to apply law 25A based on a knowledge of how the brain works..........There is nothing wrong in believing a player who says "i reached for the 1H bid and found I had put a pass on the table" and deciding that this was a mechanical error.”
I should be grateful for clarification. Thanks.