GM Levon Aronian won week 10 of the 2022 Rapid Chess Championship presented by Coinbase, besting GM Alexander Grischuk in the knockout final. GM Hikaru Nakamura won the Swiss tournament and made it to the semifinals along with GM Fabiano Caruana. GMs Jeffery Xiong, Vidit Gujrathi, Dmitry Andreikin, and Jose Martinez made it to the quarterfinals. Participating in the event were 38 elite players from theRead More →

You know the problem: can you place eight queens on a chessboard so that now two queens threaten each other. There are 92 distinct ways of doing this. But how about on larger chessboards? For 27×27 board people have worked out that there are exactly 234,907,967,154,122,528 ways. Now a HarwardRead More →