とても面白い話ありがとうございます。ひとつだけ補足コメントさせていただきますが、 10:00「チェスは人同士だと引き分けはそこまでない」というのは9割まではないというお話で、将棋よりはずっと多いです。簡易的に調べるとチェスはヒト同士でも55%が引き分けとあります(Google調べ: "What are odds of draw in chess?" In chess games played at the top level, a draw is the most common outcome of a game: of around 22,000 games published in The Week in Chess played between 1999 and 2002 by players with a FIDE Elo rating of 2500 or above, 55 percent were draws.)。