20 August 2022

The Wrong Move

Several days ago I was watching a recent PowerPlay video by Danny King. He featured a game that had an impact on the final standings at the Chess Olympiad in Chennai: Muzychuk,M. -- Kashlinskaya,A. After 27.Qd6+, black faced two possible legal moves.

Black to move
The safer looking move, which was played in the game, was the wrong move. It was the "losing" move, according to King.

Later that day, I was reading a book that had recently arrived: Jacob Aagaard, A Matter of Endgame Technique (2022). The first exercise at the beginning of the first chapter takes a position from Concio,M. -- Tin, Jingyao, 2021 played online in an Interzonal qualifier for the 2021 World Cup. Again, Black has two legal moves.

Black to move
Again, the move played in the game, and the one I might have chosen on impulse, was the wrong move. With Aagaard's book, however, I knew it was wrong, but failed to find the reason. Reading the book made it clear that I needed to calculate more deeply.

2 comments:

  1. For both positions in this post, it feels like there are 3 legal moves.

    First: Ke8, Kg8, Kg7

    Second: Kc8, Kc7, Kc6.

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    Replies
    1. So it seems. Maybe I should have written reasonable appearing, rather than legal. Both Ke8 in the first instance and Kc8 is the second must be rejected because each loses a rook.

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