I make no claim at being other than an average Hearts player and I have no idea of how many times over the years I've played a game of MSHearts against the computer but this is certainly the first time (and probably the last) that I got the following results.
The thing was I wasn't even really trying to shoot except for the last hand and even then I was essentially forced into it by having to eat the queen early.
BTW if there's some kind of cheat out there that allows you to do this I'm certainly unaware of it and in any case for those that automatically assume the worst, no cheats whatsoever were used in this game.