[math-fun] Chess and Mathematics

For those interested in the numeric aspects of chess ... Marc Bourzutschky and Yakov Konoval have broken Lewis Stiller's record for the 'deepest' known chess win, which was a KRNKNN position with depth = 243. This is a KRRNKRR win with depth = 290. KRRNKRR was recommended by Noam Elkies as worth investigating early. As Noam recommended several other endgames, it is possible that 290 and even 300 will be beaten in 7-man space, and we may not have long to wait. See http://www.xs4all.nl/~timkr/chess2/diary.htm, item 298 to play through the moves. guy