Yeah … I have asked perhaps once or twice, when I misclicked, but when a friend wrote “I own also my mistakes” when I offered an undo, IIRC after an obvious misclick, I liked that so much that I acquired that as a rule for myself.

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“The only difference between me and a madman is that I’m not mad.” — Salvador Dali ★ Play a slooooow correspondence game with me on OGS?

A well known quote of of Takeo Kajiwara Sensei comes to mind.

I've never asked for an undo. But I don't remember ever refusing an undo either.
I guess I accept any undo, but may think about if it *feels* as if the fun or nature of the game is being compromised.

If a player wants to repeatedly undo up until the point where it ruins the fun of game, that person should be content with being politely questioned at the end-- I'd only do this if I win, as the aim is purely to prevent it being done to someone else, and I wouldn't want to seem like a bad loser, as it's more unlikey for undo expert to listen .

Apart from the mentioned reasons for not being inclined to undo, I personally also want to be able to look back at a game in 20 years and be able to tell when greed overtook, when fatigue arose, when I fell into stupidity, and when lunch was ready; I feel it's worth more than the cost of one or two losses here and there (though the cost may be a bit more sometimes )

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On Go proverbs:
"A fine Gotation is a diamond in the hand of a dan of wit and a pebble in the hand of a kyu" —Joseph Raux misquoted.

I only hit undo when i play on ogs via handy and my stone jump to another place as i hit submit :/ I take every undo request from others. Lost a game because of that but i can handle it .

I tend to be far too kind about it than I really should be (no reason to make enemies). The only time I don't allow them is when my opponent obviously blunders. In other words, he goes somewhere that makes perfect sense, its just wrong. You can almost always tell a misclick when you see it. In fact, I'm usually waiting to see the undo request pop up. All this being said, on OGS (and I would imagine all servers) they have the option to use a submit button for each move which makes misclicks impossible. It's your choice if you want to player the faster, more dangerous way of single click (I at least use double click). Therefore, no one has the right to ever demand an undo and no one above 6 years old should ever get "angry" about it.

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Thinking like a go player during a game of chess is like bringing a knife to a gun-fight. Thinking like a chess player during a game of go feels like getting knifed while you're holding a gun...

I clicked the option for Accept any undo request before the next move is made, although there is a little more leeway than that, if I respond to their move very quickly then I'll still accept the undo request if it comes in what I consider to be a reasonable time. I've done similar things in face to face go as well, however although I've never played in a tournament I probably would never accept an undo request there (not counting ASR League here as it's for teaching).

The one thing which automatically gets any and all requests from someone rejected is if they undo a move and then try to undo the previous move as well.

PeterN