There were some excerpts from an interview but I've long lost them.
Washizu starts to gamble against Akagi and make serious ground against him, the two are neck and neck in the end with Washizu about to win. However, his heart gives out and he's unable to continue. As he dies, he admits to himself death wasn't as scary as he thought and concedes defeat, his throne to Akagi. Then there's comments that Akagi wasn't gambling for the money or seeking to win it through the match, his aim was to attack Washizu directly through the game and kill him indirectly, since it's just another form of winning.
IIRC Akagi's house in Ten at one point was Washizu's Manor, but he gave it up because it was too big to care for.