keep in mind, when playing chess, one's ego can get hurt. lol
Chess rating system
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Testing!
"Known as 'sandbagging,' I'd be shocked if such a thing happened here!"
I wouldn't; I think it happens a lot.
I think there is a better way to get accurate rankings in tournaments. The idea is to consider the result of a game to be not 0, 1 or 0.5(draw), but a floating point number between 0 and 1.
1. Computing the score of the winner:
when draw :
the score for the winner would be : (material_of_winner - material_of_loser)/number _of_game_moves
when not draw:
the score for the winner would be: (material_of_winner - king_value) /number_of_games_moves.
2. The score of the loser
The score of the loser is (- score_of_the_winner) in both cases. The "winner" in a draw match is the player that has more material at the end.
3. Deal with promotions
If a player promotes its pawns to other pieces, we consider that pieces to value a single point(like no promotions had happened).
4. Interpretation of result
4.1 The result can be interpreted as the material gain per move.
4.2 When a player is mated it is considered that he lost all pieces but the king who is a prisoner.
4.3 when draw both players keep their pieces but stop fighting. That is why the formula is different.
And to rank players in a tournament you should sum up the scores of each player after each game. And if there is a round robin tournament this would be very accurate.
...and many threads asking questions.
Speaking as a novice - surely the score & ranking must matter? I enjoy any increase & lament any loss. If you join a site, don't you also join in the judgement????
eI'm enot esure, but this is the perfect thread to ask that equestion.
hey
I JUST CAN'T WIN A CHESS GAME!
I had been using ChessMASTER 8000 (which doesn't seem to work on my new pc). On ChessmaSter you are pitted against a number of apponents of various skills. Such as a college student of moderate chess ability, a high school student etc and a 5 year old girl scout.
They all wooped me!!!!!. Finally, I CONFRONTED SKIPPY THE CHIMPANZEE, who moved all his pieces totally randomly, without any kind of strategy at all! Skippy mopped the floor with me!!!!
Now I feel a little better after the trouncing; I want to go back in the ring. Hopefully, Chess.com will help. Then I will roar 'BRING ME THAT CHIMP!! I'll murder him!!! HAS ANYBODY SEEN HIM?
Chessmaster lets you make custom opponents. You might try turning down a few of the settings on the chimp
I just won a game against a player whose rating is about 50 points higher than mine. His rating went down, but mine stayed the same. Why would this happen?
how much different does your rating increase/ decrease if you win by time, checkmate, or resign?
so why do i gain/lose a different amount of points- is it based on the rating of my opponent?
Dec 2, 2013
0
#1559
I wouldn't put too much confidence in chessdotcom ratings lol. Alot of factors could affect the rating, such as cheaters. And there seems to be alot of cheaters here on this site. Check out the cheater banned list, it is too much.
How is it possible for a player to go from around 1750 to 1100 in apx. two weeks? I just got paired up in "online" with a person that was about 1750 or so and now a couple weeks later.... I would think the numbers wouldn't vary so much so quickly.
Check the player's completed games list. If their rating did in fact drop so precipitously and fast, you may find a slew of losses in a row, possibly timeouts (in the case of a lot of timeouts, the player may have been unable to indicate 'vacation' before being forced to stop play.)
This can happen to players with a large number of games going. Or they can "make it happen;" resign a bunch of games to get an artificially low rating in order to qualify for a particular tournament (example: 1700 'loses' over 200 points to qualify for an under-1500 event). Known as 'sandbagging,' I'd be shocked if such a thing happened here!