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Backgammon and variants.

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17. August 2009, 15:50:24
gammonrace 
Subiectul: Minigammon
can be played on a reduced board ... two home sections face each other (six points on each) and each player has 6 checkers placed like follow: 3 checkers on point 1, 2 checkers on point 2 and 1 checker on point 3 ... all backgammon rules are valid ... it's very compacted game, highly technical.
I can be played on one of the half of the board ...

15. August 2009, 17:31:30
Karol G. 
Backgammon, 2200+, 7p & dc - 7 points match with doubling cube for 2200+, robin round

Karl

6. August 2009, 20:00:35
gammonrace 
Subiectul: pyramid backgammon

6. August 2009, 08:02:38
gogul 
Subiectul: Re: DailyGammon
spirit_66: Somehow yes. But I personaly don't fight back the cheaters with their own weapons. I rather listen to the writing. Subtile though, even meaningless for the subject as it belongs to the social component. I leave the game checking to those who understand something about ;)

6. August 2009, 07:51:37
spirit_66 
Subiectul: Re: DailyGammon
gogul:

----> <it's something for patient observation.>

Maybe with the help of a nice tool like GNU?

6. August 2009, 07:46:27
gogul 
Subiectul: Re: DailyGammon
spirit_66: Turn-based gaming allows to moan over a long period of time. It's something for patient observation.

6. August 2009, 06:07:45
playBunny 
Subiectul: Re: DailyGammon
spirit_66: Ah, so turn-based backgammon just doesn't suit you. That's fair enough.

6. August 2009, 06:03:34
spirit_66 
Subiectul: Re: DailyGammon
playBunny:

Well, I'm also registered at DailyGammon but I stopped playing there. There's also the long delay between the moves which can be used for foul play.

I prefer FIBS and GammonSite.

6. August 2009, 03:54:15
playBunny 
Subiectul: Re:
spirit_66: I'm still thinking more and more if BK is a good place for playing BG

BrainKing is great for a whole range of games but it's not the Home of Backgammon. If you're not already at DailyGammon you ought to check it out. See my profile for more details.

Heh heh, one of the attractions that I list is Pit yourself against a world class robot!

6. August 2009, 03:50:49
playBunny 
Subiectul: Re: "I can play a bot at home"
wetware: spirit_66 has said it too: Playing against bots I can do this on my PC with GNU, Jellyfish whatever for free.

The reason I asked you what you meant is that I think that argument rather misses the point. The point is that someone is masquerading bot as a person not that they are providing a bot to play against.

With regard to that latter point, whenever a site provides a bot to play against it is well attended! You may well have GnuBg at home but you cannot play turn-based against it with anything like the ease that you can at a site designed for the purpose. gb001, one of Dailygammon's GnuBg-based bots is very popular and not just with those who don't have GnuBg themselves. ;-)

5. August 2009, 04:44:26
spirit_66 
Subiectul: Re:
wetware:

I can't see this problem as easy as you can. It drives me nuts thinking about that such a rotter is fooling me.

I pay at BK for playing BG against human beings. Playing against bots I can do this on my PC with GNU, Jellyfish whatever for free.

I'm still thinking more and more if BK is a good place for playing BG. The long possible delays between the moves are provoking any kind of fraud or foul play.

I've to face so often that somebody delay immediately the game if the one is on the loosing street. For me this is also a kind of foul play.

At the moment I think it's better to play BG with the short time limit of not more then 3 minutes.

Well, still frustrated about the way it goes here.

5. August 2009, 03:57:56
wetware 
Subiectul: Re:
playBunny: In such cases, I hate the pretense and the unnecessary effort, pB.  Why should I have to go to the trouble of logging in, managing vacation days, and my remaining time, if my opponent is actually gnubg...which I could play at any time without those added steps?  And to think I may even have exchanged pleasantries with opponents who did little more than relay moves that were chosen by their program--well, I can't say it makes me furious, but I'm clearly not pleased by such actions.

I must say, however, that I haven't seen very much of that here.  I was mistaken when my earlier message said "...coming here to BK".  I ought to have corrected that.  Sure, there are problems here, but I've seen worse elsewhere--and that's what was on my mind when I wrote.

4. August 2009, 17:21:10
playBunny 
Subiectul: Re:
wetware: If I wanted to play against gnubg, I could do that without coming here to BK.

I've heard a number of people say something like this and, of course, I know what it literally means, but what is your point?

4. August 2009, 14:33:38
gogul 
Subiectul: Re:
spirit_66: Its allright. The word you thrown at me made me laugh anyway, I think the laugh was on both sides. And about the cheats going on, I don't have the time for it. But what you observe might reinforce your oppinion on a suspected cheater but isn't enough for a proof IMO. In fact, players who like to concentrate on a move ge often run off in reallife playing, make forward boy backgammon is a fast game. Online playing allowes such a player to take his time, of course GNU comes after the game is finished. It happens that grandmasters exploit the idea to play with Gnu or fritz, it doesn't belong to bk IMO.

4. August 2009, 14:19:52
wetware 
Subiectul: Re:
aaru: At some point, although absolute proof may still be out of reach, it is more reasonable to conclude that cheating has taken place.  On another site, I analyzed several players' matches.  In one case, I found at least 3 lengthy (21-point) matches where the player had 0 moves marked very bad, 0 moves marked bad, and just 1 marked doubtful--at gnubg's default settings.

If I wanted to play against gnubg, I could do that without coming here to BK.

4. August 2009, 11:18:42
spirit_66 
Subiectul: Re:
gogul:

Ooohhh! Now comes the man from Switzerland with the big potatoes!!!

You can believe me that I'm only frustrated about .. let's say .. opponents with sound games.

Hard for me not to believe that there's something going wrong when I can watch them at the already opened game and it takes a long time till they make their moves. What do you think they are doing? My proof is if the GNU analyse at the end of the match show me no fault. The top of all is if they have very luck dices too.

But I never complained about any unfair play of you!!!

4. August 2009, 11:01:30
gogul 
Subiectul: Re:
spirit_66: Your frustration because of cheaters, I don't buy it. Your offences toward me aimed on luck.

4. August 2009, 09:56:49
spirit_66 
Subiectul: Re:
aaru:

OK!

4. August 2009, 09:54:39
aaru 
Subiectul: Re:
spirit_66: OK, now is everything ok.
;)

4. August 2009, 09:51:47
spirit_66 
Subiectul: Re:
aaru:

Ok!!

What should I do now? Shoot myself to give you satisfaction?

4. August 2009, 09:47:10
aaru 
Subiectul: Re:
spirit_66: Are you sure? Next time pls think about this rule before you say something offensive.

4. August 2009, 09:39:37
spirit_66 
Subiectul: Re:
aaru:

I know the rule "in case of doubt not guilty".

4. August 2009, 09:30:32
aaru 
Subiectul: Re:
spirit_66: Apologize - OK.
But remeber - you need to prove guilt, not innocence.

4. August 2009, 09:24:38
spirit_66 
Subiectul: Re:
aaru:
I can!!! But if you're not, well then I apologize. How will I know that you're innocent???

4. August 2009, 09:09:23
aaru 
Subiectul: Re:
spirit_66: "Analysing a game with GNU and if it shows me that the opponent didn't make any fault, that makes me alerted and suspicious."
Maybe, but that does not give you the power to name the second person CHEATER!!!!

4. August 2009, 05:51:24
spirit_66 
Subiectul: Re: interesting annotations
playBunny:

Well, interesting to read all the notes.

I'm talking about both, games and matches. I agree that it's always uncertain to judge on a small amount of events. Would be beneficial to have many games/matches for the analysis.

I also agree that I'm not free of prejudices when I'm alerted of a possible fraud.

I guess one can say that there are cheater on BrainKing and I also guess that we can't get rid of them.

So I'm asking myself if it's worthwhile to go on playing here and being somebodies fool or better to stop any activity on BrainKing? I still don't know but there's a big frustration.

Thanks
Spirit

PS: If I sentenced aru wrong than I'll apologise but he didn't give me any good explanation to make me change my mind.

3. August 2009, 19:36:37
playBunny 
Subiectul: Re:
grenv: I'd be more interested in if the player's moves were identical to an easily utilized program...

Erm, more interested than in what? We're already talking about play that matches a bot's.

since even computers make minor mistakes, the odds of the player making exactly the same mistakes over an extended time is... ?

Well the odds of the same position coming up again is pretty low so that's not the best thing to look for and such a search would involve looking at the moves made. However, the odds of playing a zero error rate in match after match is nil and at or below a "World Class" error rate is very low, whereas the ease of detection is high. All you need are the error totals for the matches. When nabla and I investigated we found a zero error rate and no other possible conclusion than that a bot was being used for the moves.

3. August 2009, 18:19:01
grenv 
Subiectul: Re:
playBunny: I'd be more interested in if the player's moves were identical to an easily utilized program... since even computers make minor mistakes, the odds of the player making exactly the same mistakes over an extended time is... ?

3. August 2009, 18:10:45
Resher 
Subiectul: Re:
spirit_66: Some games don't include any difficult decisions to make and so could easily show up no fault.  But I agree if it happens on more complex games, then it's either suspicious or you're dealing with a very good player.  I would expect most games against nabla to show no fault on his part, but only occasionally for lesser players like myself.

Can you post a link to a game or two you're suspicious of so we can take a closer look. 

I don't think you should be suspicious of aaru - I really don't believe he's the cheating sort (based on my experience, I enjoy playing him) and anyway, he has far too many games on the go, to have time for it!

3. August 2009, 18:06:05
playBunny 
spirit_66: Do you mean game or match?

I play many games flawlessly or with a couple of minor mistakes but very rarely do I play a flawless or near perfect multi-point match. The reason is that some games consist solely of positions and moves that occur so often that they become standard. Such a game will be played perfectly. Most matches take a player into unfamiliar territory and that requires thinking and judgment. Such games generate mistakes.

When checking out someone that you suspect of cheating it's best to look at enough matches that you are feel both convinced and that you could convince others if required to do so.

3. August 2009, 18:03:10
nabla 
Subiectul: Re: Cheating player
spirit_66: Analyzing your played games with GNU is indeed an efficient way to catch the cheaters, but since it is not that rare even for casual players to play one BG game close to perfection you need to be a little more quantitative :

>BG games are analysed by GNU

How many games ?

>and one can see that ones opponent didn't make any mistake

Didn't make any mistake greater than what threshold ? GNU doesn't color mistakes lower than a certain threshold.

> and what if this happens again and again???

How many times ?

E.g. I would certainly take an aggregate error rate below 1 (Snowie) or 2 (GNU) based on two or three consecutive seven-pointers as an evidence for bot cheating.

3. August 2009, 17:48:42
spirit_66 
Subiectul: Re:
aaru:
Analysing a game with GNU and if it shows me that the opponent didn't make any fault, that makes me alerted and suspicious.

3. August 2009, 16:21:30
gogul 
Subiectul: Re:
aaru: I can't help the dice machine likes me!

3. August 2009, 13:27:13
aaru 
Subiectul: Re:
spirit_66: Loss game - it's your argument to the fact that the other person (me) cheating.

3. August 2009, 13:06:13
spirit_66 
Subiectul: Re: Cheating player
playBunny:
But isn't this a shame?? What's the purpose to do this? Is it a big lack of self-confidence? We don't play for money here. It's only to do a fair competition.

3. August 2009, 12:53:14
playBunny 
Subiectul: Re: Cheating player
spirit_66: What would anybody think if BG games are analysed by GNU and one can see that ones opponent didn't make any mistake and what if this happens again and again???

If it happens again and again then the player rises to the top of the ratings, round about where sergey82 is.

Not that I'm saying that sergey82 is a cheat, of course.

3. August 2009, 12:28:26
spirit_66 
Subiectul: Re:
aaru:
You're not the only suspected player. Don't be proud about your misbehavior.

3. August 2009, 11:44:24
aaru 
Spirit think that I'm grandmaster

3. August 2009, 11:22:40
spirit_66 
Subiectul: Cheating player
What would anybody think if BG games are analysed by GNU and one can see that ones opponent didn't make any mistake and what if this happens again and again???
Did I play against a grandmaster of BG?
What is your experience?
Spirit

25. Iulie 2009, 23:24:33
wetware 
Subiectul: Re: Ratings List
alanback:   LOL...didn't realize you'd vanished, too, Alan!  But I know you're legit--that's a different matter.

(I've been winding down here as well.)

25. Iulie 2009, 23:00:24
alanback 
Subiectul: Re: Ratings List
wetware: In my case, it's a matter of winding down my presence here and letting my membership lapse. I'll be back on the list briefly before too long :-)

25. Iulie 2009, 14:44:56
wetware 
Subiectul: Ratings List
I've just noticed some absences from the upper tier of the ratings list.  I'm not sure when it happened, but I'm glad it finally did.  (It was long overdue.)

19. Iulie 2009, 20:29:45
Czuch 
Subiectul: Re: World championship final today
fakar10: Thanks for the link, that was interesting to view!

19. Iulie 2009, 14:44:44
Sylfest Strutle 
Subiectul: World championship final today

27. Iunie 2009, 16:14:37
Vikings 
Duh! I feel stupid, I was looking at my dice, she did indeed roll a 5-2

27. Iunie 2009, 16:05:36
Czuch 
Subiectul: auto pass
when using it, you know when your opponent has a legal move or it would be your turn again, but when you look at the game the dice for that turn are not shown, even though they had to be already rolled?

27. Iunie 2009, 15:50:51
grenv 
Subiectul: Re: Only one move?
Vikings: I think this game is shown from the other player's point of view, so 5-2 was the roll... 5-1 is the current roll about to be played... no?

27. Iunie 2009, 15:47:56
Vikings 
Subiectul: Re: Only one move?
grenv: I've thought of that so I did a hard refresh a couple of different times and am still showing 5-1

27. Iunie 2009, 15:18:44
grenv 
Subiectul: Re: Only one move?
Vikings: Looks like maybe 5-2 was the roll? Then it would make sense.

27. Iunie 2009, 14:42:17
Vikings 
Subiectul: Re: Only one move?
Bwild: I don't think that is it because she could have moved from 5 to 6 with her second move

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