Can elite GMs who know optimal opening lines many moves deep immediately refute any suboptimal move by an opponent? - Quora

Answer (1 of 4): Elite GMs tend to know every opening they play intimately. If one of their opponents deviates from theory, what will usually happen is that the GM will think “that’s not normal” and then analyze the position and find a refutation if there is one. It’s not guaranteed that they wil

Can elite GMs who know optimal opening lines many moves deep immediately refute any suboptimal move by an opponent? - Quora

Do pro-chess players (grandmasters) memorize all of their openings, or do they have databases that help them choose appropriate lines when it is their turn to play? - Quora

What are well known opening traps in Caro-Kann Defense? - Quora

Can elite GMs who know optimal opening lines many moves deep immediately refute any suboptimal move by an opponent? - Quora

Why should one bother to play chess if white has the first move advantage? - Quora

Can elite GMs who know optimal opening lines many moves deep immediately refute any suboptimal move by an opponent? - Quora

Can elite GMs who know optimal opening lines many moves deep immediately refute any suboptimal move by an opponent? - Quora

Do GMs normally know all the main lines and well-known variations of the famous openings? - Quora

Could Lee Se-dol have excelled at chess maybe not to the level of chess legends but the top 100 players or at least becoming a grandmaster if he had invested the same