It's approximatly 750 Elo, and even then the diffrent Systems differ a lot, I don't know. As I said, it cannot offer 2800 like Kasparov.
I just went to http://www.neilpearce.co.uk/chess/ , there is an other ply-2 chess program that runs in javascript. Deep Purple made it check mate in 9 moves. I only tried one time since that javascript takes a minute or so for one move in Opera.
Here's the party where Deep Purple was white:
1. a2 a4 b8 c6
2. e2 e4 e7 e5
3. d1 f3 g8 e7
4. b1 c3 d7 d6
5. f1 c4 c8 f5
6. e4 f5 e7 f5
7. f3 f5 f8 e7
8. f5 f7 e8 d7
9. c4 e6
I just went to http://www.neilpearce.co.uk/chess/ , there is an other ply-2 chess program that runs in javascript. Deep Purple made it check mate in 9 moves. I only tried one time since that javascript takes a minute or so for one move in Opera.
Here's the party where Deep Purple was white:
1. a2 a4 b8 c6
2. e2 e4 e7 e5
3. d1 f3 g8 e7
4. b1 c3 d7 d6
5. f1 c4 c8 f5
6. e4 f5 e7 f5
7. f3 f5 f8 e7
8. f5 f7 e8 d7
9. c4 e6