What do I do if my opponent deviates from theory?

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IMKeto
Kilbroney wrote:

perhaps even more worthwhile is just "play" the game and don't be bothering with stuffing your brain with much meaningless theory and "..what-if's.."

To bad this advice isnt taken more often.

congrandolor

Checkmate him

kindaspongey
safeassign wrote (April 28, 2019):

Okay I have read all the comments and it seems that "Theory" is more of a guideline and I should not get too caught up with it. Thanks for your comments I am very new to chess especially theory