The reason for the 50-move rule, along with the triple-repetition rule is to make chess definitely finite. How did one arrive at the number 50? What would change if it was 40 or 60? Is the number 50 ...
Wikipedia's article on the fifty-move rule states: In the 20th century it was discovered that some positions of certain endgames can only be won in more than fifty moves (without a capture or a ...