In today’s feature position, Fred Dewhirst Yates (white) has just played 38. Ka1 leaving Jose Raul Capablanca (black) with a decisive advantage in king safety, material, space and force. Capablanca puts the final nail in the coffin with a brilliant 38th move after which Yates (white) immediately resigns. What is black’s winning move?
“Capablanca’s phenomenal move-searching algorithm in those early years, when he possessed a wonderful ability for calculating variations very rapidly, made him invincible.” – Mikhail Botvinnik