Computer Dice

Forum Archive : Computer Dice

Does Cybergammon cheat?

From:   Goto Informatique
Date:   2 August 1996

> Those who frequent Netgammon should beware that Cybergammon, the neural
> net computer opponent, is a cheater.  I played an 11 point match with the
> beast. He committed such absurd technical errors as leaving blots (in
> several instances) on his goal board while I still had men situated
> there. He must have left about 10-12 blots during that match and I only
> hit two or three of them.  In a couple instances he left two blots and I
> didn't hit any!  We're talking about blots 6 spaces away or less.  He got
> several "miracle throws per game, including entering three blots in with
> a double, an instance where he entered his man and hit one of my blots
> (7% chance at the time), and rolling multiple doubles in bear offs, among
> other instances.  He plays with terrible technical skills, but makes it
> up by effectively destroying my positions (he calls the dice) and giving
> me dice rolls which make it almost impossible to close off positions.
> There was an instance when I was bearing off, and only a 6-1 would force
> me to leave a blot and (as they say in "voila!" he got the
> roll.
> Of course, human bias may have a role when accusing a computer of
> cheating, but when a computer keeps getting rolls "that accomplish two
> great things at a time" (so to speak), surely something crazy must be
> going on.

This the kind of words I can't let without a reply!  I fell particulary
insulted by this message. Do you react like that each time you loose a
game?  Don't you know that luck is a part of backgammon?

Your message involve that you think that I am a cheater!  That I've
programmed this software with the idea to cheat!

I know that Cybergammon has weakness (especially during the end of the
game) but as Peter already answer:  Do you think that Cybergammon could
be rated only 1540 if he cheats?  And what can be the aim of making
something like that?

I am really upset by people who are not good enough in backgammon to be
able to see when they are lucky and remember only the games they lose
because their opponent was lucky.  I can understand that you are not glad
if you loose a game, but you know:  Some people are better than you, and
some has more luck than you in a game.  Do you think they all cheat?

I close the argument and I don't want to ask you any apologizes.  Anyway
I hope you have fun playing on our server!

Xavier Dufaure de Citres
Cybergammon & Netgammon develloper
System Operator on IBS
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Computer Dice

Dice on backgammon servers  (Hank Youngerman, July 2001) 
Does Agushak Backgammon cheat?  (Mr Nabutovsky, June 2000) 
Does BG by George cheat?  (George Sutty, Nov 1995) 
Does Backgammon NJ cheat?  (Greg+, June 2010) 
Does Cybergammon cheat?  (Goto Informatique, Aug 1996) 
Does David's Backgammon cheat?  (Joseph B. Calderone, June 1998) 
Does GNU Backgammon cheat?  (Robert-Jan Veldhuizen, Nov 2002) 
Does Gammontool cheat?  (Jim Hurley, Sept 1991) 
Does Hyper-Gammon cheat?  (ZZyzx, June 1996) 
Does Jellyfish cheat?  (Fredrik Dahl, June 1997) 
Does MVP Backgammon cheat?  (Mark Betz, Oct 1996) 
Does MonteCarlo cheat?  (Matt Reklaitis, June 1998) 
Does Motif cheat?  (Rick Kiesau+, Mar 2004)  [Long message]
Does Motif cheat?  (Billie Patterson, Feb 2003) 
Does Motif cheat?  (Robert D. Johnson, Oct 1996) 
Does Snowie cheat?  (André Nicoulin, Sept 1998) 
Does TD-Gammon cheat?  (Gerry Tesauro, Feb 1997) 
Error rates with computer dice  (NoChinDeluxe+, Feb 2011) 
FIBS: Analysis of 10 million rolls  (Stephen Turner, Apr 1997)  [Recommended reading]
FIBS: Are the dice biased?  (Kit Woolsey, Oct 1996) 
FIBS: Entering from the bar  (Tom Keith+, Apr 1997) 
GamesGrid: Too many jokers?  (Gregg Cattanach, Sept 2001) 
GridGammon: Are the dice random?  (leobueno+, Sept 2011) 
Jellyfish: How to check the dice  (John Goodwin, May 1998)  [Recommended reading]
Jellyfish: Proof it doesn't cheat  (Gary Wong, July 1998) 
MSN Zone: Security flaw  (happyjuggler0, June 2004) 
Official complaint form  (Gary Wong, June 1998)  [Recommended reading]
Randomness testing  (Brett Meyer+, Dec 2010) 
Safe Harbor Games dice  (Michael Petch+, Aug 2011) 
Synopsis of "cheating" postings  (Ray Karmo, Feb 2002) 
Testing for bias  (Kit Woolsey, Jan 1995) 
The dice sure seem unfair!  (Michael Sullivan, Apr 2004) 
Too many repeated rolls?  (Stephen Turner, Mar 1994) 
Winning and losing streaks  (Daniel Murphy, Mar 1998) 

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