Wayne_LV, on Dec 22 2006, 08:18 AM, said:
If a player is suscpected of cheating, a quick trip to My Hands and a look at the past month's results for that player can often be very revealing. A win rate at IMP of 1 or more IMP per board. An average MP score of over 55% for a large number of boards is also very suspect.
I want to comment on a couple of issues. I am totally against banning kibitzers. BBO is as much a social site as it is a gaming site. For some, it is much more social than gaming. Ban them from ACBL and cash prize tournaments is begrugding ok, since this clearly prevents one common form of cheating. But from the main room? That is just too much.
Now to the quote about myhands, I will discuss primarily the premise about imps (your if they average 1 imp that is a very suspect). First, what does it take to average 1 imp per board? I did a study of players imp average based upon their published okbridge lehman's rating. As might be expected, lehmans is based on performance, so a person with average lehman averaged around 0 imps. The top lehman ratings averaged 1 imp per board (see
Admit it, you always wanted to know.... for the study)
But let me add some caveats to this. Some people come to bbo and play with the same partner against the same small cluster of opponents. In this case, if one pair is significantly better than the other, they will AVERAGE higher than expected imp scores. Why, because a better partnership will do better in the long run against a weaker partnership. Second, there is a fair number of people who set up an run team games. Because of ego problems, they always pick the strongest pair to be their teammates, so they win much more often than they lose, especially if they pick weak opponents. So if you are using myhand to look for average imps, please disregard any team game events from the mix (those are the ones that all the boards are perfect numbers, 3.00, 12.00, etc.. all with 00 after the decimal point). Also when really good players come to BBO and only play in team games against other, equally really good players, their average is very low (theoretically 0 if evenly matched). And when really good players decide mostly to play with/against students in the main room, they can have really high averages (a few gold stars who do this average upwards of 2 imps/board). Using myhands and looking at average imps per board is a very poor starting point. Of course if you think someone is a cheater and you check and they are averaging MINUS 1.3 imps per board, maybe you should rethink.
As to Flame's comment about partner telling him in private chat the meaning of a 2
♣ bid, I don't mind that IF IT WAS MADE PUBLICALLY to the table. I invite my opponents to work out such things (03,14 or 14,03-- for example) publically. Technically and ethically, there is a name for using private chat to work out such things, it is called cheating. Not the most horrible kind, but the fact that private chat was used to express it (and this had to be messenger chat) suggest that your partner was concerned about the appearance of the comment as well. And of course, the BBO site rules expressedly forbid such communications.
I hear all kinds of cheating complaints. For example, dummy jumping over to declarer seat after declarer loses connection to finish the hand. As dummy he saw all the cards in the other hands. Is this cheating? Well, if it is, it is not chronic, and it is not secret. How fair is it? How fair is it to place a sub who has not seen any of the earlier played cards either. The only solution is to redeal or wait for the recently departed to return. I try to calm those situations down and don't make a big deal out of it. Likewise, if some bids 4NT in the main room and announces to the table 14,03 and I get called, I try to defuse those as well. After all, it really is just a game.