Questions tagged [analysis]

Questions relating to the objective assessment of a position. The assessment may entail which side has the advantage, or what the best move might be.

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2
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3answers
799 views

Stockfish Evaluations

I've been getting Stockfish to analyse lines of the KID, and the evaluation gives a score of around +1.5: White has a big advantage. How come this is true, when the KID is a playable(and good) opening?...
1
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0answers
28 views

Xboard and a remote engine

I want to analyse chess games with xboard and stockfish. Locally this is no problem. But my PC is slow, so I have rented a faster linux server, and I want let stockfish run on it. How can I use xboard ...
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1answer
111 views

An interesting endgame

The following position has only eight pieces on the board with Black to move, but it is very tricky. I started trials with my modest means (Houdini 6.02) and White won 3/3 times, but after very ...
4
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2answers
275 views

Is Bg4+ good in this position in the Alekhine Defense?

This is one of my games [FEN ""] 1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Bc4 Nb6 5.Bb3 Nc6 6.Bf4 dxe5 7.dxe5 Qxd1+ 8.Kxd1, Bg4+ 9.f3 Bh5 10.g4 Bg6 Black to move, I played dxe5, dxe5, Qxd1 Kxd1 and now I played ...
6
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2answers
257 views

Black Lion opening plans for White's 5. Bc4 line

The Black Lion is a line that can be transposed from a Philidor or Pirc defense. I play with White this line. [FEN ""] 1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O c6 7.a4 Qc7 8.Re1 ...
7
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6answers
3k views

Why does Stockfish recommend this bishop exchange early on?

When reviewing my games on Lichess, I very often find the Lichess engine recommending to me to sacrifice the bishop early on after checking the enemy king. I have created a sample game where you can ...
8
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3answers
317 views

Why does ChessMaster recommend 24. Rg3 in this position?

I reached this position when playing against ChessMaster's cyber personality Laura. The engine recommends the line starting with 25. Rg3: [FEN ""] [White "Bad_Bishop"] [Black "Laura"] [StartPly "48"] ...
2
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2answers
242 views

French (white) loss to a master - where could I have improved?

[FEN ""] [Date "6/16/2018"] [Round "7"] [White "Me"] [Black "Opponent"] [Result "0-1"] [WhiteElo "1874"] [BlackElo "2286"] 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Be7 8. ...
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3answers
1k views

Is White in a weaker position?

Is White in a weaker position than Black? How do I analyze this position? [FEN "2rq2kr/p1ppbp2/1pn1p1pP/4P3/3P2Qn/2PB4/PP3P2/RNB1K2R w - - 0 1"] From this point onward, I tried a mobile ...
6
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1answer
684 views

What is black's best sixth move in the Sicilian Grand Prix?

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4 6.O-O Nxb5 is most common. [FEN ""] 1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4 6.O-O Nxb5 (6...a6) Instead of 6...Nxb5 if black plays 6...a6, it ...
2
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1answer
173 views

Material value of the Berolina pawn

The Berolina pawn is a fairy piece that moves like a normal pawn, but can move two (and one in all other cases) steps diagonally and capture one forward. How much better (or worse) is this piece ...
3
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3answers
906 views

Owen's Defence playability

The Owen's defence is a chess opening which starts with 1. e4 b6!?. This opening is playable if Black can get a quick c7-c5 break, where he has a pawn on e6, b6, and then he pushes c7-c5. However, ...
0
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1answer
210 views

Why did Black allow White to capture en passant two times in a row?

I read about this game on Tim Krabbe’s website and found it on chessgames.com. I am severely confused by Black’s 30th and 31st moves. [Title "Sergey Gennadyevich Kudrin-Rudy C Douven, GMA ...
1
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3answers
393 views

Engine Evaluation Confused

The Muzio Gambit is -0.8 by Stockfish depth 22. However, if the f7-pawn is moved to the g-file, the evaluation falls to -3.5. How is that so? Both positions seem fine for White. [FEN ""] [...
3
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2answers
99 views

How does one analyse openings judged dubious by engines?

I have recently picked up the Norwegian Defense (also known as Northsea Defense), 1. e4 g6 2. d4 Nf6. All modern engines claim it is not good. But I have great results (14W-1D-5L in 15+10 on 2000 ...
4
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1answer
142 views

A difficult rook ending

I need help. In the below endgame, Stockfish and Fat Fritz are optimistic on Whit's winning chances , but Mueller disagrees. What happens with perfect play? [FEN "R7/6p1/P3p1k1/7p/8/5PPP/r7/4K3 b ...
4
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4answers
209 views

Why is 16. d5 a blunder in this position?

In this position I'm White and I have just played 16. d5. Stockfish labels the move as a blunder. I do understand I had better moves than this, and it's not the move I would play if I were to get this ...
1
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1answer
134 views

What should be the next move for Black?

Both sides have had equal points untill now. If the Black knight is moved, then White can move their knight with discovered check. What should Black do? [FEN ""] [StartPly "11"] ...
3
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2answers
342 views

Lisitsin gambit vs From's gambit

The Lisitsin gambit usually involves a bishop on d3 and a knight on g5. From's gambit has only a bishop on d6, but the gambit-accepting side has less development than the Lisitsin. How would this ...
22
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7answers
2k views

What proofs for refuted gambits are there?

I've stumbled upon this article a while ago, and I've also seen refutations for the Muzio Gambit (Joseph Kling & Bernard Horwitz - Chess Studies on Endings of Games). I'm wondering what other ...
3
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2answers
126 views

Looking for resources on a sideline of the Caro Kann, 1. e4 c6 2. Nc3 d5 3. Qe2

[fen ""] 1. e4 c6 2. Nc3 d5 3. Qe2 d4 4. Nd1 I find this variation very interesting and would like to know whether it has a name, is in some books, or maybe just annotated games. It is ...
2
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1answer
198 views

Is this the correct way to analyze games before checking with engine?

[FEN ""] 1. e4 {0} c6 {0} 2. d4 {19} d5 {0} 3. e5 {1} Bf5 {0} 4. Nf3 {1} e6 {0} 5. Be2 { 20} Nd7 {0} 6. O-O {4} Bg6 {0} 7. Nbd2 {53} Nh6 {0} 8. c3 {4} Nf5 {0} 9. Bd3 { 24} Ne3 {0} 10. fxe3 {...
6
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4answers
2k views

Can Black punish a provocative h-pawn push against fianchetto setups?

This question might sound ridiculous, but I think it needs to be discussed. [fen ""] 1. c4 g6 2. h4!? (2...h5 3. d4 Bg7 4. e4 Nf6 5. Nc3 d6 6. Bg5 Nh7 (6...O-O) 7. Be3 O-O) (2...e5 3. d4 ...
2
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2answers
81 views

Benoni setup defence

In the Benoni, there is a certain setup for White where there is a knight on g3, and a bishop on d3. White then starts a pawn storm with f4-f5, with a large attack. How am I meant to play against this ...
1
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1answer
124 views

Bishop and queen endgame from a computer chess game

[FEN "8/6pk/p4b1p/2B5/P3q2P/6P1/5P2/3Q2K1 w - - 0 1"] 1. Ba7 (1. h5) This position happened in TCEC Season 15 Superfinal Stockfish vs Leela. In the game Stockfish played Ba7 and the game ...
4
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0answers
59 views

CNN autoencoder for feature extraction for a chess position

I'm currently building a chess engine in my free time while entering my second year of my master's studies in computer science. For a class we need to perform a litterature survey of a topic and ...
0
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1answer
63 views

Writing chess moves on paper [duplicate]

Is the FIDE rule for writing chess moves with pen and paper by both players discarded or not mandatory in World chess championship games? In case yes, why it is discarded or not mandatory to write ...
37
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11answers
19k views

Is there any free software to automatically analyze and annotate games?

I'm looking for free software that automatically analyzes and annotates chess games (post-mortem), preferably marking blunders, suggesting good alternatives, pointing out missed tactics (forks, pins, ...
2
votes
2answers
130 views

Lc0 vs. Stockfish

Stockfish analyses many positions per second and chooses the best line. Lc0 is a neural network that immediately ignores moves which don't work, but is slower. However, somehow Stockfish is better. ...
3
votes
3answers
241 views

Can Black equalize?

I am working hard on improving certain line, and no matter how much I try I get no headway. I am forced to delve into risky lines, so I am asking for help to determine if Black can equalize in the ...
0
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3answers
250 views

Can Black defend in this difficult position?

Can Black reach solid and defensible position in the below diagram? I understand that Black will have to apply "equalize over time" method, so to help posters keep the analysis brief, I am ...
2
votes
2answers
82 views

Seeking an explanation for Nezhmetidnov’s queen sacrifice

In this game, Rashid Nezhmetidnov sacrificed his queen for a bishop. I see that White gets an outpost on d5, but I can't find anything else that justifises the sacrifice. Is there any other ...
3
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2answers
85 views

Is it possible to win this endgame?

[FEN "7r/1pk2p2/2p5/p5pp/3R2P1/1P3P1P/P5K1/8 w - - 0 1"] Is it possible to win this endgame with either White or Black ?I know the Lucena and Philidor positions which are the first things ...
2
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3answers
116 views

How to decide whether to exchange (good/active) bishops

I have read about exchanging bishops for knights and inactive bishops for active one. I still don't know how to decide when both sides’ bishops are seemingly equally active. For instance, I have read ...
7
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1answer
346 views

Can Black successfully finish this opening?

I am trying to revive an old line in the Scandinavian defense. Among the many lines I am analyzing, there is one position that looks promising. I will leave out the lines / opening moves, to keep ...
1
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2answers
132 views

Is Anderssen's opening playable?

There is a certain opening called the Anderssen's opening that plays like this. [FEN ""] a3 e5 2. h3 d5. Black has developed two pawns, occupied the center, and opened up the lines for ...
2
votes
1answer
74 views

What's the best way to get the top n engine moves?

I want to use python-chess to get the top 5 Stockfish moves from a given position with a numerical evaluation for each move. Is it more accurate to run the engine for 10 minutes with MultiPV=5, or to ...
12
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4answers
4k views

“Brilliant Move” - Chess.com - But Why?

I was playing a tournament on Chess.com and received a "Brilliant Move" in the post game analysis. I haven't received this before and was curious of the following. [FEN ""] 1. d4 ...
10
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4answers
3k views

What is so great about Bxa3?

I only have about 35 games experience , so please excuse blunders. I am in the following position. My app (dr wolf) wants me to capture on a3 as indicated by the arrow. However I fail to see either ...
0
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1answer
64 views

Spielmann Nimzo-indian

In the Spielmann Nimzo-indian, the position after this completely reasonable line makes the position seem that Black is winning. However, the engine evaluation gives the position as equal. What sort ...
2
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2answers
128 views

What am I missing here?

[FEN ""] 1. e4 {0} e5 {8} 2. Nf3 {0} Nc6 {5} 3. Bc4 {0} Bc5 {3} 4. c3 {0} d6 {6} 5. O-O {0} Nf6 {8} 6. d3 {0} O-O {1} 7. Re1 {0} Re8 {4} 8. b4 {0} Bb6 {19} 9. Qd2 {0} d5 {12} 10. exd5 {0} ...
4
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1answer
80 views

Is there a chess move history app for Mac?

I would like to check various positions to see if I have reached them in the past. I play on lichess.org which lets you download your complete game history as a pgn. I was wondering if anyone knew of ...
3
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1answer
63 views

Pirc Defence, Kholmov System literature

I am looking for some references where this variation is analysed. I have found some YouTube videos where engines play out this position, but they do not explain alternative moves which also lead to ...
4
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1answer
156 views

What is the main idea in this winning endgame?

I was playing an online game with the white pieces and won the exchange in the middlegame. So I exchanged some pieces and went for the "winning endgame". I went ahead to draw the game. ...
4
votes
1answer
418 views

Borg and Grob comparison

The Grob is a white opening which starts with 1.g4. The Borg(reversed Grob) is a black opening which goes 1.e4 g5, or 1.d4 g5. Since White is a tempo up in the Borg, what difference will this make? ...
10
votes
2answers
1k views

Three way fork-Why take the rook instead of the queen?

I just finished off a game and decided to do some analysis because I had a position that I was thinking about for a little bit. I ran the game through Stockfish and the move I was thinking about was ...
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2answers
185 views

Benoni Theory Help

I've got an important tournament game coming up, and I will be playing Black. I will play the Scandinavian if White plays 1.e4, but I won't be able to unbalance the game properly after 1.d4, except if ...
1
vote
1answer
199 views

Traxler Counterattack

I've had a few looks at the Traxler counterattack before. It seems fine for Black, but somehow the engine (Stockfish) says that White has a +2.57 advantage after Nxf7, but not much advantage after ...
8
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1answer
2k views

Why is e5 the strongest move here for white?

[FEN "rnb1kb1r/pp1pp2p/2p2ppn/q7/2BPP3/5N1P/PPPN1PP1/R1BQ1RK1 w kq - 3 8"] I'm a noob at chess, as I just started playing a week back. I'm played as White here, and Stockfish recommended e5 ...
0
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1answer
85 views

King's gambit line refutation [closed]

In the King's gambit, a strong opponent has played against me(as black): 1.e4 e5 2.f4 exf4 3.Bc4 h6(trying to hold onto the f-pawn). I have found a variation where White probably has a strong ...

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