[password321]

I think it is safe to say when both players have had the same level of training and same level of interest that the better player has better analytical ability. I can't see why else there would be a difference in chess ability at that point.

[kzrdude]

Winner instict, competitive drive and other such things?

[password321]

Level of interest = competitive drive. And not sure what winner instinct means.

[kzrdude]

competitive drive is also about how you feel about winning or losing. A competitor "needs" to hate to lose or love to win - it helps. Just look at the world champion (of chess) - he can be a sore loser, because he has very strong feelings about it. He has a competitive drive way above mine, and many others.