Analyzing Games Based on Openings #1 - Sicilian Defense , Open Variation

In this blog series, I analyze grandmaster chess games based on their openings, exploring the ideas, strategies, critical moments, and mistakes that shaped the game. Each post focuses on a different opening and breaks down how top players handle positions, create attacks, defend under pressure, and convert advantages at the highest level of chess. I write a simple summary of the game of the end too.

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Game 1 - Magnus Carlsen vs Dominguez Perez ( 1-0 )
Event : Saint Louis Rapid & Blitz 2019

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In the first 10 moves, both players played according to theory but Magnus gained a slight edge.

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Black allowed the queen and the knight into the queenside and white gained an advantage. Perez's mistake was a5 allowing all play.

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In this part, Magnus become a knight up, securing his victory.

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Black played accurately, with some pawn breaks, putting pressure on white forcing him to play accurately. This is the right thing to do, since when losing we must complicate thing.

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The pawn race was won by white, even though he sacrificed his bishop.

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Summary :

Black played a good game, but his main fault was allowing an attack on his king, starting with a5, the turning point of the game. He should tried to play with a rook against two minor pieces, but he decided to play a piece down, where Magnus easily converted the game.
Thank you!