Answer:
There is not enough information provided to accurately answer this question.
Step-by-step explanation:
If the only possibilities were player A winning or player B winning, and we know player A has a 5/6 chance of winning, then player B would have a 1/6 chance of winning.
In reality, if player A has a 5/6 chance of winning, then there is a 1/6 chance that player B will win, or that player A and player B will tie. If this is a written assignment, inform your teacher that chess doesn't always end with one of the player's winning.