toughest question i face in probability
X and Y are two chess players. The probability of X winning a particualr game against Y is \( \frac 13 \) and probability of Y winning the game is \( \frac 23\).They play a series in which rules are such that if X wins 2 consecutive games then X wins the series and Y wins the series if Y wins 4 consecutive games. They start the game and play until one of them wins the series. Following these rules, the probability of Y winning the series is \(P\). Then find \(258P\).