Monday, 30 January 2023

Lessons From Mariánské Lázně: Loose Pieces Drop Off

GRANDMASTER John Nunn popularised the phrase "loose pieces drop off," sometimes abbreviated to LPDO.
Position in my round-five game after Black captured on d5
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I was thinking about Nunn's aphorism as I considered my reply in this game, but that did not stop me playing 16.Bg5?! as I felt it was important to prevent a black rook going to d8, and at the same time I was developing a piece.
Stockfish15 and Komodo13.02 reckon getting the queen off the e file, while also attacking d5, is better, which is why they suggest 15.Qf3.
After my move the game continued 16...h6 17.Bh4 Rfe8, at which point I probably should have played 18.Qb5 or 18.Qb3.
Instead I chose 18.Qd2, which gives the white knight a second defender, but Black took advantage of the loose bishop with 18...Qg4.
I unloosed the bishop, as it were, by playing 19.Bg3?, only to be hit by 19...Bxd4 20.Qxd4 Re1+ 0-1.
Better were 19.h3!? Qxh4 20.Nf3 Qb4 21.Qxd5 Re2 and 19.Nf3 Nf4 20.Bg3 Ne2+ 21.Kh1 Qc4, although in both cases the engines give Black a large advantage.

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