Questions tagged [fortress]

In chess, the fortress is an endgame drawing technique in which the side behind in material sets up a zone of protection around their king that cannot be penetrated by the opponent. https://en.wikipedia.org/wiki/Fortress_%28chess%29

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40
votes
4answers
5k views

Is this endgame (sort-of Q vs K) a draw?

I think the following endgame is a draw. [FEN "7k/5BpP/3K2P1/8/8/8/8/4q3 w - - 0 1"] My reasoning: I'm playing white. I will only move my king, always. Black's king cannot move. If the queen decide ...
13
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2answers
1k views

What is a fortress in chess?

Throughout the 2016 World Championship match, analysts have made many references to the term "fortress". What does it mean, and how can I use it to my advantage?
10
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1answer
231 views

Is this position a fortress?

I am unsure how to break through as white here. There seem to be no way to get a passed pawn on the e file. Stockfish evaluates this as +3 at high depths but gives no plan. Any plans? [fen "3Q4/...
9
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2answers
676 views

Is this a fortress?

I have just played a thoroughly enjoyable game, where in the middlegame I was forced to give up the queen for two minor pieces and defend. After 30 moves and some trades, the situation got simplified ...
8
votes
1answer
509 views

Amazon vs Chancellor endgame

Many online sources (such as Wikipedia) state that the endgame of amazon (piece that moves like Queen and knight) and chancellor (piece that moves like rook and knight) is a draw. I did some ...
6
votes
1answer
618 views

Technique to win this same colored bishop endgame

The following endgame is a same-colored bishop endgame which I had on a game in Lichess. I tried for approximately 30 moves to try and win this game, but in the end, I got nothing more than a draw. I ...
5
votes
2answers
2k views

Why doesn’t Stockfish evaluate this fortress as 0.0?

I'm going through the 100 endgames you must know book on Chessable and stumbled upon something I don't understand. This position with white to move is described as a draw starting with 1. Kh1. I ...
4
votes
1answer
202 views

Computer being right and human being wrong

Of course, computers have changed the evaluation of more than one endgame position (BB vs N being the most known, I guess), which humans thought to be drawn. Having read another question here, I'm ...
2
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3answers
212 views

Can black make any progress in this end game?

I have been analyzing this endgame for a while now, but I can't seem to make any progress. The engine evaluation is -2.5, but I'm wondering if this is one of those weird evaluations that is wrong ...
2
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1answer
225 views

Is the following position a fortress?

[FEN "8/4k2p/p1b1p1pP/Pp1p2K1/1PpP1P2/2P1R3/8/8 b - - 0 1"] Houdini6.02 eval flatlines at 1.37, but I reached d= 54 , and , although the eval continued to flatline, the main line indicated ...
2
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1answer
101 views

When are games against engines drawn?

When two engines play against each other in a game of chess, when is it appropriate to declare a draw when clearly no progress is possible? For example: 8/6k1/8/R3K2p/2r3p1/6P1/7P/8 w - - 0 2 This ...
1
vote
1answer
250 views

What is this formation called?

I recently came across this formation at random. I vaguely remember reading about it around a decade ago. I want to know if this is a known play. [FEN "8/8/8/8/8/2NPPN2/PPPBBPPP/2RQKR2 w - - 0 1&...
0
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1answer
131 views

Pogchamps: How does Michelle Khare beat Pokimane (rook and knight vs rook pair)?

From pogchamps, specifically semifinals of consolation bracket of pogchamps 3: [FEN "4k3/7p/5p2/8/P2rr3/5N2/6PP/4R1K1 w - - 0 1"] Black (Michelle Khare) just blundered a rook, but white (...