JohnWolfgang
So I was playing a low stakes tourney last week and an interesting situation came up.
I was in the small blind and thought the blinds were 100/200. I put out my 100 and the big blind put out their 200. UTG raises to 600. Before the next player acts, UTG realizes the blinds had actually gone up before the start of the hand, and point out that myself and BB have the wrong amounts in. We both put in our 200/300 so the blinds are now right. Then, UTG pulls his 600 back and puts in 900. I point out that he can't change his raise seeing as 600 is the minimum legal raise for 200/300 blinds.
He starts to argue that since we had the wrong blinds in and he wanted to make it 3x that he can change it. I argued, but the dealer was mainly silent and felt his argument that he wanted to make it 3x made sense. My argument was that it shouldn't matter what the blinds have put in, it's each player's responsibility to know the blind level, and since he had put in enough for a legal raise already he shouldn't be able to change it. None of the other players at the table chimed in, and the dealer didn't really seem to care so rather than hold the game up I just relented and his change to 900 stood.
Was I wrong in challenging this or should he have been made to stick to the original raise to 600?
trigs
I probably would have let him change his bet since, as you stated, the blinds just went up last hand and both the small and big blinds put in were incorrect (which is the information he based his bet off of). Perhaps technically he could have been forced to stick to the original 600 bet (I don't know what officially would be the ruling), but I don't see this as a big issue and something worth throwing a fuss over.
jojo
Same as Trigs. Officially, I think his 600 bet probably has to stand but in the spirit of home games, I would definitely let that slide. Its not a big deal.
MrCaspan
There is no harm to the game to change it. His intention was to 3x the BB. It not like now he has more information and lied to get a 3x in.. they have no more information then when the hand begun so IMO there is no harm changing it. There is no side angle play here that gives him any advantage.
moose
Since only one player has acted on their hand, the blinds can be reset and the UTG can reconsider their action.
DrTyore
Side note..
I understand that you made a mistake, and are likely correct in a casino / official setting it would be enforced. Having said that, they would in such settings also likely broadcast the change in blinds levels pretty clearly, and someone could accuse you of angle shooting by misrepresenting the blinds.
Mark