Is there a stop to Internet Backgammon cheaters?

If you suspect that someone is cheating, wait until the end of the game and refuse to roll. You will find that they cannot nudge you if they are cheating. I do not know why, but this is the case.

I find that 80% of people playing windows BG are indeed cheats.

This only seems to work at the end of the game.

Start taunting them, say "nice try" and "it was luck" followed by "no"

No-one who I have suspected of cheating has been able to nudge me if I refuse to roll the first roll of the game... (even though they do often rise to my taunts).

Try it.

there are 2 die in backgammon that is why the odds are 33% of rolling a 6

Sir, you roll ONE die in the come out roll, not TWO!!!!!!!!!

The odds of a 6 with ONE DIE is 1/6.

This is also true for my opponent - he/she rolls ONE die in the come out roll.

DEFINITION:  COME OUT ROLL  The first roll of ONE die in the game by either player.

That is what I counted - the come out roll (ONE DIE) of my opponent and I got 39% sixes.

How many time must I explain this?  In my first message above, I use the term, "first roll of my opponent" .  I meant the COME OUT ROLL which I explained is subsequent messages.  Please, with all respect, read all of my messages before responding to me.

Now, is it clear to you that the probability of a come out roll of a six is 1/6?

And you are wrong again about the probability of rolling a 6 with TWO dice.  It is about 31% not 33%

All events:

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6) (2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6) (4,1) (4,2) (4,3) (4,4) (4,5) (4,6)

(5,1) (5,2) (5,3) (5,4) (5,5) (5,6) (6,1) (6,2) (6,3) (6,4) (6,5) (6,6)

Rolling a six:

(1,6) (2,6) (3,6) (4,6) (5,6) (6,1) (6,2) (6,3) (6,4) (6,5) (6,6)

That is 11/36 or 30.55%

I recorded the first roll of my opponent for 2221 games.  The opponents rolled a 6  861 times or 39% of the time.

The probability of rolling a 6 is 16.7%

The dice are not random or some opponents have control of their roll.

And, yes, there is a way to stop cheaters - don't play them. 

Here's my way of telling a potential cheat (play experts and make them roll first):

1. Their come out roll is a 6 or you have equal rolls and must roll again.
2. Their first free (2 dice) roll is a double or a 65.
3. There is a long pause before their roll.  (They are busy recording moves)
4. There is a long pause after their roll and especially before an obvious move like a 31, 61, 55, etc.
5. They double before their first foll.  (A win is insured for them)
6. When losing severly, they roll 2 life-saving doubles in a row.

The down side is that you will be playing only about 10-20% of the games to the end, win or lose.  It is very difficult to find a non-cheater based on the above.  But, almost guarenteed, if you play them, you will lose.  So why bother.

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New study results.  This time I counted (using a program I developed) their come out roll of a 6 or equal rolls.

The expected probability is 33% (1/6 + 1/6)

I got 242/344 or 70%

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One more thing...try playing as a beginner, not an expert.  They tend not to use the cheat programs against beginners.

 

The odds of rolling a 6 is not 6 to 1, it is 3 to 1, ie: 33%. This the the same with any number.

 

Many people mistakingly say that the odds of any particular throw is 36 to 1, wheras it is in fact 21 to 1

In a sense you  correct there are 21  different rolls.

but there are not equal odds of rolling a specific double or specific non double.

the odds of rolliing

any one specific double (double 6 ) ARE 1 in 36

one roll (6, 6) out of 36 possible

the odds of rolling any specific non double (6,1) are

2 in 36 (18 to1)

two possible six - ones (6,1)(1,6)