After a brief summer break, Chess.com's Death Match returns less than three days from now with a battle between two gold medal winners.
GM Wang Yue (China, FIDE 2713) will take on GM Aleksandr Lenderman (USA, FIDE 2584) in D... | Read More
If you’re reading this article, you’re probably well-informed on chess in general.
So you already know that Chess.com offers an extensive library of chess news, articles, videos, openings information, training tools, and lessons... | Read More
This week I will be reviewing an interesting and unusual book about the development of chess in China. The author, Liu Wenzhe, is considered to be one of the first promoters of western chess in China. Originally a XiangQi (Chinese chess) player, W... | Read More
Probabilistic Rating Theory
A = ½ ( Ao + Bo + R )
B = ½ ( Ao + Bo – R )
P = 1 / (1 + e ^ ( –KR ) )
R = (log ( (e ^ ( KRo( Ro> 0 ) ) + S ) / ( e ^ ( –KRo( Ro< 0 ) ) + 1 – S ) ) ) / K
K = –( log ( 1 / Ps ... | Read More
A familiarity with Chess is assumed in the following description.
The Chinese Chess board is composed of 9 vertical and 10 horizontal lines. These are the files A to I and the ranks 0 to 9 of Chinese Chess. The 9x10... | Read More