In my next "comeback" tournament, I blundered early (move 8) in my first round game after having a distracting morning, which was not worth analyzing beyond remembering the obvious lesson of avoiding that particular blunder again. We'll therefore start with the second round game, which helped highlight the previous theme of Annotated Game #267: How openings are really learned, as it featured a dubious variation from Black in an English Four Knights. I had faced it before twice in my tournament career, but did not recall the previous games at the time. After looking at this one, I should remember the ideas better and be more confident in choosing how to respond (either of two main options for White on move 7 are good for an advantage.)
The new theme for this game is the evaporating winning advantage. In this case, I go up a pawn early and also have a nice positional edge heading into a major and minor piece endgame. This should be an easy win, but I let Black get too much play on the kingside and then end up in a drawn rook endgame, despite retaining the extra pawn. It is a helpful illustration of how quickly even a decisive positional advantage validated by the engines can quickly dissipate, based on some inaccurate calculations and visualization. At least it wasn't a loss, is my only consolation.
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