Chess engines

      One of the problems of playing chess on the net is that when you are playing against a strong player, you can't really be sure if he is really good player or just using a chess engine against u, so if you lose (which often happens if playing against an engine) you don't know wether your attack was really that easy to stop, or you were playing a Rybka, my question is how can you be sure if the other player is really good player or just using an engine against you, bcz if you do know for sure he is cheating you'll know what to do.

You don't know, it's that simple, if you suspect him of beeing a cheater (unlikely when you are playing below 2100) you report him to the admins and then you go on with your life. The rating you lost to him will easily be rewon over the course of time.

sometimes even low rated players use (not as often as "strong" ones) once i lost against a low rated player on another chess site, so i put up an engine against him, bcz i was so amazed by the ease which he refuted all my gambits and attacks, so i put an engine against him to be sure if he is really good or not, the engine got a draw after long hard fight, so my point even sometimes weak or medium rated players use, you never know. i thought there must be some way u can know, but apparently it is hard, at least when im playing in tournaments i can be more certain. but i guess that's one the disadvantages of playing online.

Chances are that if you suspect your opponet is using an engine, you are having a bad day. Cheating occurs, no doubt. But it is far less common than accusations of cheating.

Run your engine analysis after the game. If you find evidence of too high of match-up, report your opponent to abuse. Make this checking your habit, and you will become skeptical of your own suspicions, but after many tests you might catch one cheater.

You know, this is not something that has ever bothered me. My rating is typically 1600-1700. If Rybka had an account here, it's rating would be 3000+. In reality, it makes no difference whether I'm playing someone ~2500 or Rybka, I'll still lose for reasons I don't understand. My advice - stay rubbish at chess, and you'll never encounter a computer online.

I have been on a "computer buster" team for a chess site before.  There are a few things that invariably happen.  They are more noticeable when a complete beginner cheats than when a 2000 player is cheating. 

1. Odd king moves when there seems to be no attack present.

2. Taking a long time to move on forced recaptures or otherwise obvious moves (course, it's the net, they could just be in the loo or getting a sandwich...)

3. Big difference between lighting/blitz/standard ratings.  A 1300 blitz player isn't going to get to 2200 standard haha. 

4. Spectacular sacrifices on higher rated players that win the game ten moves down the line.

While there are a ton of other signs, and these signs listed DO NOT mean the player is cheating, they are a good indication to look closer at the games. 

Just a thought...

Here you are allowed to use "Opening books" to help with openings, but not computers - I wonder how many computer moves have made it into the "Opening books" already.  I bet quite a few have, because GM's prepare novel lines suggeted by computer analysis -- they then get into the books under the GM's name.

Are there any such moves credited to a chess engine yet?

That's a good point, but a few days ago one of the stronger players here (cant remember who now) made the point that engines are notoriously bad at openings. So, it will be a while before you see a Rybka gambit, probably....

There is the Fritz variation in two knights defence, which I think is from Fritz, but on the other hand, it might be from some german fella named Fritz.

My strategy entirely.

Chess.com is the best of the lot when compared to the rest of the chess scene on the net plagued by sharks and people using auto players and Rybka not saying you won't *ever* encounter a shark who will try to swindle you for a few points here and there but the odds are low to remote.

Tricklev wrote:

"There is the Fritz variation in two knights defence, which I think is from Fritz, but on the other hand, it might be from some german fella named Fritz."

Extract from "Two Knights Defence" by Yakov Estrin, published in 1970 (before the Fritz engine was even a twinkle in some programmer's eye):

1 e4 e5 2 Nf3 Nc6 3 Bc4 Nf6 4 Ng5 d5 5 exd5 Nd5 (originally given in descriptive notation but I have written in algebraic notation for the sake of clarity).

"This move was suggested by A. Fritz and was thoroughly analysed by C. Schlecter in "Duetsche Schachzeitung" during 1904."

I have played chess games where i win 3 to 4 games against same player then he starts to play like Fischer an runs me 3 to 4 games.An yes in blitz games also.I train against sveral strong engines so i can tell when i play cheaters.