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
550 AD - Northwestern India
- Persian poem in 600 AD describes chess coming to Persia (Iran) from India
First called: "Chaturanga" - a Sanskrit word translated as "4 limbed" or "4 parts"
The four divisions of an army: five foot soldiers, three ... | Read More