My background is as a chess player, where touch move is enforced. If I move a piece incorrectly by mistake, it’s too bad for me. Also, I am simply terrible at this point. I’ve only ever played a half-dozen 19x19 games.
Last night I was playing a game and put a stone on the 1st line when I had intended to place it on the 2nd. I was aware there was an undo button but in my mind I was still in the “touch-move” mindset and felt that the stone should remain. This predictably led to the local fight completely coming apart. I then regretted not doing the undo.
Is there any etiquette around the undo? Do I ask first, do I call it out and then wait for them to agree? Do I simply “undo” right away? Thanks for any clarification.