Computers do not play chess with humans without breaking the rules of tournament play. When you play in a chess tournament, you are not allowed to look up the o

Computers do not play chess with humans without breaking the rules of tournament play. When you play in a chess tournament, you are not allowed to look up the opening of your game, and you are not allowed to look up the best play for simple endgames. Chess software has opening and endgame databases built in. In a chess tournament, you cannot move pieces during analysis. That is what computers do. I understand that humans do study openings and endgames and analyze by moving around pieces in their heads.