Question

which is the best way to complete the text? tammy was an experienced speed chess still struggled with the pace of competitive tournaments. player so player but player; but player, but

Explanation:

The first part states Tammy is an experienced speed - chess player, and the second part says she still struggled. There is a contrast. 'But' is used for contrast. Also, a comma is needed to separate the two clauses for proper punctuation in a compound sentence.

Answer:

player, but