The vista is known to be fairly weak, a few stronger would be Rybka and Fritz, for example, the later edition the stronger.
Chess Titans on Windows Vista

I can beat Vista Chess Titans on level 10 without too many problems and I am far from a Master, let alone a Grandmaster. Rybka, Shredder or Fritz on the other hand can play at the level of Super Grandmaster on even the average computer.
In my experience, even a weak club player can beat chess titans. It's not meant to be an opponent for people that play chess regularly, rather it's meant to face those that play chess a few times a year.
It's performance against me is about 1200 (I find it as challenging as your average schoolastic player), it's never won or drawn (how could it? Terrible endgames), AND i move instantly. As a comparison, rybka is elo 3200 and stronger then the strongest human chess player in the world by a mile. I find it hardest on about level 8 because I simply have less time to think =P.
From what I've heard about other chess players, most people that take the game seriously find it to be an easy opponent. Again, it's meant for people that play chess once or twice a year, more serious chess players can buy stronger programs.

Chess Titans' rating is no better than about 1300 from what I've seen. It's not efficient-it can take up to a minute to make an obvious move like recapturing a queen.

Some users are saying it's really weak?? Maybe it depends on the computer? Level 10 for me feels like ~1600-1700 B class player. And yes, it's strategy and endgames are poor and it does take a long time to move.
I'm currently playing chess titans on windows and I want to know if the level of competition the computer offers at it's highest level is about the same as a expert or grandmaster chess player?
. . .Hehe, the difference between expert and grandmaster is so huge... you could compare it to the difference between a beginner and an expert
I'm currently playing chess titans on windows and I want to know if the level of competition the computer offers at it's highest level is about the same as a expert or grandmaster chess player? I want to know If I'm beating the computer at level 8 or 9 or even 10 If I'm really doing well as a player or what skill level would I fall under in world wide competition.
And are computerized chess games basically the same at the highest level or are some versions more challenging than others?
Thanks