What a pity for Kejie！And i think it's unfair to him.In order to win the game,the sponsor( Korea Go Association)changed the rules three months ago.And the rule they have changed is ridiculous:if someone eat the other's pieces,he(she) must put the pieces on the lid of the chess box. What's more,the sponsor put the lid on KeJie's left hand side(KeJie's most common hand is his right hand).When he concentrated on playing chess,he forgetted to put the chess on the lid twice(because the rule is ridiculous and it's never been in the rules of competition or training before). The referee decided that he had lost.In my opinion,if you want to win the game, you need to test strength, not change rules to make others unaccustomed.What do you think about?