well again, there are several factors to consider besides quality of play on the board. for example, most engine users on this site play longer games. consulting an engine in 1 0 or 2 0 is
impractical, tho some have tried. Tal would have played 1 0 :).
Also, their knowledge of opening theory would have been such that allowed for very quick play early on. Most engine users on this site are unfamiliar with opening theory, and therefore you will find
their move times consistently slow, even at the beginning. The same is true at the end of a game, or in forced positions. A good player will not spend 7 seconds considering a forced or obvious move,
nor will he spend a long time thinking about a clear mate in 2 or 3. Engine users on this site often spend relatively the same amount of time on such moves as others. Once or twice it could be chalked
up to circumstance. A pattern of such behavior over time, however, is incriminating.
besides these indicators there are others; I won't go into them all. is the system perfect? no; we are willing to reconsider our decisions and we approach suspected cheaters with the benefit of the
doubt.
that said, it would be really hard to mistake the play of Tal or Kasparov for an engine. This is Tal's last game, a blitz game, incidentally vs Kasparov. You can see for yourself.
http://gameknot.com/annotation.pl?gm=35410&pg=0
impractical, tho some have tried. Tal would have played 1 0 :).
Also, their knowledge of opening theory would have been such that allowed for very quick play early on. Most engine users on this site are unfamiliar with opening theory, and therefore you will find
their move times consistently slow, even at the beginning. The same is true at the end of a game, or in forced positions. A good player will not spend 7 seconds considering a forced or obvious move,
nor will he spend a long time thinking about a clear mate in 2 or 3. Engine users on this site often spend relatively the same amount of time on such moves as others. Once or twice it could be chalked
up to circumstance. A pattern of such behavior over time, however, is incriminating.
besides these indicators there are others; I won't go into them all. is the system perfect? no; we are willing to reconsider our decisions and we approach suspected cheaters with the benefit of the
doubt.
that said, it would be really hard to mistake the play of Tal or Kasparov for an engine. This is Tal's last game, a blitz game, incidentally vs Kasparov. You can see for yourself.
http://gameknot.com/annotation.pl?gm=35410&pg=0