Spoiler or not...i find it personally disrespectful that people spew those out since it loses the appeal and grasp that an anime can give us. Please, to everyone...no more spoilers. I'm not a mod but i don't want my series spoiled, ok?
i'm guessing the chairman drew the lot that kaiji had hidden, then flipped it over to look like a blank. when the second winning lot is drawn, he'll flip it over.