Daily Chess Improvement: Special Endgame Understanding!

This was from round 4 of the 2019 US Championship

Caruana v Dominguez

White to move. What is the game plan for white?

Comments
No. 1-3
Yancey_Ward
Yancey_Ward

Editor

Interesting. I put this into an online chess engine this morning, and it looks like there is actually a forced mate in about 18 moves if you let the engine run long enough. The chess engine analysis at Chessbomb only shows an edge, and a line that ends at around 10 moves deep, and is significantly different than what I found with an online Stockfish 7. In the online Stockfish, white maneavers and forces the queen to capture at h8 at a time when the knight is on d3. With the queen deflected, the rook/queen combo can mate the black king. I have to scan through the sidelines.

The Chessbomb analysis, such as it was, was a line where white maneuvers to sacrifice the rook for the b-pawn in a way that allows white to queen successfully, and the ending Q+Q vs Q+N is won as I verified with the Nalimov.

Yancey_Ward
Yancey_Ward

Editor

I will also say this- I would never find this method of winning- the key sacrifice would be hard for anyone to play for.

Yancey_Ward
Yancey_Ward

Editor

I was wondering whether or not you would post this position. I will others work on it, but not that Caruana threw away the win with Qa8.



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