WEBVTT 00:00:07.230 --> 00:00:10.820 The attacking infantry advances steadily, 00:00:10.820 --> 00:00:14.980 their elephants already having broken the defensive line. 00:00:14.980 --> 00:00:19.990 The king tries to retreat, but enemy cavalry flanks him from the rear. 00:00:19.990 --> 00:00:23.010 Escape is impossible. 00:00:23.010 --> 00:00:25.200 But this isn’t a real war– 00:00:25.200 --> 00:00:27.250 nor is it just a game. 00:00:27.250 --> 00:00:32.000 Over the roughly one-and-a-half millennia of its existence, 00:00:32.000 --> 00:00:35.897 chess has been known as a tool of military strategy, 00:00:35.897 --> 00:00:41.497 a metaphor for human affairs, and a benchmark of genius. NOTE Paragraph 00:00:41.497 --> 00:00:45.376 While our earliest records of chess are in the 7th century, 00:00:45.376 --> 00:00:50.076 legend tells that the game’s origins lie a century earlier. 00:00:50.076 --> 00:00:55.696 Supposedly, when the youngest prince of the Gupta Empire was killed in battle, 00:00:55.696 --> 00:01:00.622 his brother devised a way of representing the scene to their grieving mother. 00:01:00.622 --> 00:01:06.801 Set on the 8x8 ashtapada board used for other popular pastimes, 00:01:06.801 --> 00:01:10.894 a new game emerged with two key features: 00:01:10.894 --> 00:01:14.319 different rules for moving different types of pieces, 00:01:14.319 --> 00:01:19.179 and a single king piece whose fate determined the outcome. 00:01:19.179 --> 00:01:23.283 The game was originally known as chaturanga– 00:01:23.283 --> 00:01:26.344 a Sanskrit word for "four divisions." 00:01:26.344 --> 00:01:28.894 But with its spread to Sassanid Persia, 00:01:28.894 --> 00:01:31.774 it acquired its current name and terminology– 00:01:31.774 --> 00:01:38.804 "chess," derived from "shah," meaning king, and “checkmate” from "shah mat," 00:01:38.804 --> 00:01:41.744 or “the king is helpless.” NOTE Paragraph 00:01:41.744 --> 00:01:45.534 After the 7th century Islamic conquest of Persia, 00:01:45.534 --> 00:01:48.184 chess was introduced to the Arab world. 00:01:48.184 --> 00:01:51.304 Transcending its role as a tactical simulation, 00:01:51.304 --> 00:01:54.984 it eventually became a rich source of poetic imagery. 00:01:54.984 --> 00:02:00.154 Diplomats and courtiers used chess terms to describe political power. 00:02:00.154 --> 00:02:03.765 Ruling caliphs became avid players themselves. 00:02:03.765 --> 00:02:09.115 And historian al-Mas’udi considered the game a testament to human free will 00:02:09.115 --> 00:02:11.679 compared to games of chance. NOTE Paragraph 00:02:11.679 --> 00:02:17.289 Medieval trade along the Silk Road carried the game to East and Southeast Asia, 00:02:17.289 --> 00:02:20.316 where many local variants developed. 00:02:20.316 --> 00:02:24.776 In China, chess pieces were placed at intersections of board squares 00:02:24.776 --> 00:02:29.496 rather than inside them, as in the native strategy game Go. 00:02:29.496 --> 00:02:34.408 The reign of Mongol leader Tamerlane saw an 11x10 board 00:02:34.408 --> 00:02:37.428 with safe squares called citadels. 00:02:37.428 --> 00:02:43.188 And in Japanese shogi, captured pieces could be used by the opposing player. NOTE Paragraph 00:02:43.188 --> 00:02:47.518 But it was in Europe that chess began to take on its modern form. 00:02:47.518 --> 00:02:52.512 By 1000 AD, the game had become part of courtly education. 00:02:52.512 --> 00:02:54.762 Chess was used as an allegory 00:02:54.762 --> 00:02:58.572 for different social classes performing their proper roles, 00:02:58.572 --> 00:03:02.439 and the pieces were re-interpreted in their new context. 00:03:02.439 --> 00:03:06.949 At the same time, the Church remained suspicious of games. 00:03:06.949 --> 00:03:10.713 Moralists cautioned against devoting too much time to them, 00:03:10.713 --> 00:03:14.643 with chess even being briefly banned in France. NOTE Paragraph 00:03:14.643 --> 00:03:16.673 Yet the game proliferated, 00:03:16.673 --> 00:03:21.603 and the 15th century saw it cohering into the form we know today. 00:03:21.603 --> 00:03:27.195 The relatively weak piece of advisor was recast as the more powerful queen– 00:03:27.195 --> 00:03:31.952 perhaps inspired by the recent surge of strong female leaders. 00:03:31.952 --> 00:03:34.723 This change accelerated the game’s pace, 00:03:34.723 --> 00:03:36.953 and as other rules were popularized, 00:03:36.953 --> 00:03:41.663 treatises analyzing common openings and endgames appeared. 00:03:41.663 --> 00:03:44.646 Chess theory was born. NOTE Paragraph 00:03:44.646 --> 00:03:49.986 With the Enlightenment era, the game moved from royal courts to coffeehouses. 00:03:49.986 --> 00:03:53.796 Chess was now seen as an expression of creativity, 00:03:53.796 --> 00:03:57.376 encouraging bold moves and dramatic plays. 00:03:57.376 --> 00:04:03.796 This "Romantic" style reached its peak in the Immortal Game of 1851, 00:04:03.796 --> 00:04:07.078 where Adolf Anderssen managed a checkmate 00:04:07.078 --> 00:04:11.408 after sacrificing his queen and both rooks. NOTE Paragraph 00:04:11.408 --> 00:04:15.963 But the emergence of formal competitive play in the late 19th century 00:04:15.963 --> 00:04:21.157 meant that strategic calculation would eventually trump dramatic flair. 00:04:21.157 --> 00:04:23.585 And with the rise of international competition, 00:04:23.585 --> 00:04:27.495 chess took on a new geopolitical importance. 00:04:27.495 --> 00:04:28.745 During the Cold War, 00:04:28.745 --> 00:04:33.585 the Soviet Union devoted great resources to cultivating chess talent, 00:04:33.585 --> 00:04:37.457 dominating the championships for the rest of the century. 00:04:37.457 --> 00:04:40.907 But the player who would truly upset Russian dominance 00:04:40.907 --> 00:04:43.347 was not a citizen of another country 00:04:43.347 --> 00:04:47.697 but an IBM computer called Deep Blue. 00:04:47.697 --> 00:04:50.862 Chess-playing computers had been developed for decades, 00:04:50.862 --> 00:04:55.462 but Deep Blue’s triumph over Garry Kasparov in 1997 00:04:55.465 --> 00:05:00.475 was the first time a machine had defeated a sitting champion. NOTE Paragraph 00:05:00.484 --> 00:05:04.794 Today, chess software is capable of consistently defeating 00:05:04.799 --> 00:05:06.639 the best human players. 00:05:06.639 --> 00:05:08.759 But just like the game they’ve mastered, 00:05:08.759 --> 00:05:12.149 these machines are products of human ingenuity. 00:05:12.149 --> 00:05:18.439 And perhaps that same ingenuity will guide us out of this apparent checkmate.