@ manabi
That might have all been true if there was some sort of variance involved in the game, like in Poker or Monopoly where there's a lot of randomness going on, or even in a fight, but in a slow, turn based, perfect information, no variance game like Chess or Shogi, you generally don't need to have a lot of games to quickly determine power level, especially if one side has an overwhelming victory.
Claiming you need a lot more games of Shogi to determine a winner is...silly.