It only became identical by turn 20, that's midgame, not an opening. | Hacker News

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		squeaky-clean on Sept 26, 2022 \| parent \| context \| favorite \| on: Dear Chess World It only became identical by turn 20, that's midgame, not an opening.

roflyear on Sept 26, 2022 [–]

So what? What does that matter? 20 moves of prep is not unusual. Also opening/midgame/endgame is not defined by # of moves. This was still very much in the opening, and it was still very much "known theory" as in games have been played in that same line.

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