CHICAGO — In show business, a performer's rule of thumb is always to leave the feeling you have something more to give.
And that worked for the Blackhawks as it had for the Flyers.
Building on a strong third-period effort in their Friday loss that had evened the Stanley Cup finals at 2-2, the Blackhawks rolled to a 3-0 first-period lead and wound up with a 7-4 win, leaving them one victory from claiming their first Cup since 1961.
The Flyers had done the same in the third period of the defeat that gave the Hawks a 2-0 series lead.
Game 6 is Wednesday night in Philadelphia.
After going 1-for-9 on power plays in the first four games, the Hawks converted 2 of...