Questions related to determining the Truth behind positions. This includes who is winning, what the next move should be, and what happens when a certain move is played.

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What evaluations do various engines give of the starting position at a depth of at least 30?

I am looking for evaluations that various engines give of: The starting position, with no move made yet. The position after 1. e4 The position after 1. d4 The position after 1. c4 The position after ...
0
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1answer
24 views

Is my engine working properly?

I noticed that when I put my Houdini 3 Pro x64 in the "Infinite Analysis" mode, he tends to use a lot of time to evaluate the bad moves... Sometimes he even uses like 30 seconds on the first 10 best ...
6
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3answers
253 views
+50

Can White engineer a winning breakthrough?

I have managed to create a temporary "fortress" after losing the exchange. Analyzing the position after the game ended, I was able to find a plan for White to breakthrough. After further analysis I ...
7
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1answer
225 views

Is this rook endgame won for white?

In Dvoretsky's Endgame Manual, 2nd Edition from 2006 the following important practical rook endgame with a distant passed pawn is analysed. [Title "White to move"] [SetUp "1"] [FEN ...
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3answers
2k views

In Nakamura v. Friedel in 2009, (22. Bc1) why did Friedel resign?

After White's 22. Bc1, it seems like responding with Rd2 would keep the game alive for Black. I assume Friedel's a more insightful player than I am. What am I missing? That is, from an experienced ...
2
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1answer
91 views

Solving the Game of Chess: Trans-Computational in Nature or No?

Mathematicians have categorized chess as a trans-computational problem. A transcomputational problem is one in which a computer would need to exceed the size of the earth in order to have the ...
2
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1answer
117 views

Can Black draw this endgame?

I was playing this game just a few minutes before posting this, and tried to save the game by entering the following endgame: [Title "Black to move"] [StartFlipped "0"] [fen ...
2
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2answers
57 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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2answers
107 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 interested ...
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1answer
145 views

Stockfish's algorithm

I'm trying to understand how stockfish thinks, how calculates best move... i'm reading open source code, but it's not clear. I want to know, should i know some theory about algorithms to understand ...
1
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2answers
130 views

It seems to me that draw is all Black can get, but maybe I am wrong?

Recently I have played a game against a computer and came to the following position : [Title "Black to move"] [StartFlipped "0"] [fen "3r4/p3Q1pk/1pp3p1/8/3qP3/P7/1P3RPP/6K1 b - - 0 1"] I have ...
2
votes
2answers
166 views

Does Black have a win in this position?

I was playing a game as Black against computer and came up a tactical move that defends me from pressure. I have expected a normal retreat of the queen yet computer kept sacrificing the knight like it ...
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4answers
218 views

What are good ways to check blunders after the match?

Currently I am using Tarrasch for GUI and Rybka 2.3.2a as the engine. With that, I am able to kibitzing every position in the game and check for any blunder. So basically this is what I always did: ...
3
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2answers
96 views

The Anderssen v Zukertort game in the Yamie Chess kids' math boardgame

Spanish Game: Johannes Zukertort vs Adolf Anderssen 1865 - Berlin [fen ""] [White "Zukertort"] [Black "Anderssen"] [Event "Berlin 1865"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. c3 d6 5. d4 Bd7 6. O-O Ng6 ...
3
votes
3answers
368 views

Can Black reach full equality in this game?

I have played this game as Black against computer( difficulty was set to HARD ). I was trying to test Alatortsev line I found in ECO D, 1987 that claimed Black was equal: [Title "Taken from ECO D ( ...
4
votes
2answers
201 views

Why Black play Ra8 in this situation?

I am reading Kasparov Teaches Chess, an had a problem about this situation below: [FEN "R2K1B1R/PPP5/5P1P/3PP3/3N1pB1/3p1np1/pppb1qbQ/r2k1r2 b - - 0 1"] Black plays Ra8? next, why? I think it's ...
6
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2answers
265 views

Understanding vs. Memorization

Is memorization necessary in modern chess? Whenever I play chess I always running out of time because I move slowly in the opening. Unlike others they move fast in the opening because they memorize it ...
2
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1answer
157 views

Are there “pure brute force” engines? [closed]

Is there a chess engine that just goes for brute force search, looking for a forced mating sequence + material advantage in a couple of moves? This would especially be interesting to "prove" some ...
2
votes
1answer
90 views

1k gamesanalysis (PGN)

I've been playing chess on-line for about 7 years now. I've downloaded my past games since 2011, its about 1k chess games. The download is in PGN format. Now I want to do an analyses on the data. Is ...
4
votes
3answers
888 views

I played 2.f3 by accident! How do I save my position?

So in a correspondence chess game, the opening is the standard 1.e4 e5. I meant to play 2.Nf3 as always, but I completely misclicked and didn't realize until too late that I played f3 instead. It's ...
7
votes
2answers
557 views

Could Karjakin have grabbed on g5 at move 56 against Anand in the Candidates 2014?

After 55...Rb2, we got the following position in Karjakin - Anand (Candidates 2014, round 13). Well, how about Nxg5, does it work? [White "Karjakin"] [Black "Anand"] [FEN ...
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2answers
431 views

Has Anand missed that he is better? Anand vs Andreikin round 12 Candidates tournament

I am looking at the Anand vs Andreikin round 12 Candidates tournament and I see that it ended in a draw and that based on engine evaluation Anand is much better (+ 2.8 is kind of huge). I also see ...
2
votes
1answer
99 views

Can white recover? (midgame)

If someone could put a picture of the layout in that'd be great, I've looked (clicked edit) on posts with them and I cannot work out the format, also this is a setup, I didn't write down how I got ...
2
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2answers
163 views

I need to get rid of Black's light-square Bishop

I've self-taught myself Chess, and played against computers (as in the board shaped ones) and I quite quickly found an opening that isn't strong, but it is not bad. I'm fairly new at this "Algebraic ...
4
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1answer
250 views

Aronian vs Anand World Championship Candidates 2014 Round 8. Is White better after 19.f4.

This game occurred between Aronian and Anand today at the World Championship Candidates 2014 event. In the final position, instead of 19. Nd2, Aronian could have continued with 19.f4. He was a pawn ...
6
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1answer
122 views

B50: Sicilian Defense 3. Bc4

First a bit of background: I really like playing the Sicilian Defense as Black and it is my preferred choice of action against 1. e4. I prefer the Open Sicilian with Dragon and Najdorf being my ...
4
votes
1answer
218 views

Kramnik - Karjakin in the FIDE Candidates 2014, was 8…f5 correct?

In the game between Kramnik and Karjakin shown below, the opening was a bit strange and the resulting position was odd. I am wondering, was 8...f5 correct? Was it a novelty of sorts or when did the ...
4
votes
2answers
266 views

Did Aronian make a mistake in the opening against Anand in round 1 of the FIDE Candidates 2014?

Here is the game [Event "FIDE Candidates 2014"] [Site "Khanty-Mansiysk RUS"] [Date "2014.03.13"] [Round "1.3"] [White "Anand, Viswanathan"] [Black "Aronian, Levon"] [Result "1-0"] [WhiteElo "2770"] ...
3
votes
1answer
188 views

Caro-Kann, Smyslov variation : Can Black punish early 5.c4 in this position?

Recently I have posted a question about declining the Marshall gambit in the QGD, and asked if Black can transpose into another solid opening, as one way of defense. After analyzing the first ...
5
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2answers
149 views

What plan should black have followed in this game?

I played as black in the following game, and with the help of StockFish I've discovered a few mistakes, one of which was a very serious tactical blunder. However, I'm having trouble figuring out where ...
7
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1answer
636 views

Kasparov's Immortal Game. Flawed? 24…Kb6! Suggest an improvement for White

Kasparov's immortal game vs Topalov is often regarded as one of the best games in chess history. However, after analyzing it, I find that objectively speaking, Kasparov played some bad moves and got ...
8
votes
2answers
200 views

What was the point of Shirov's 47…Bh3?

One of the most famous moves ever is Shirov's 47...Bh3!! in Topalov - Shirov, 1998. [FEN "8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47"] [Event "Linares"] [Date "1998"] [White "Veselin Topalov"] [Black ...
3
votes
2answers
133 views

Linux: is there any engine that could play your game like Shredder?

On Windows, I used Shredder to not only analyze my games, but play the game against me or against itself from any given position. I used many engines but only found that option in Shredder, maybe I ...
6
votes
1answer
214 views

Carlsen vs Gelfand World Championship Candidates (2013). Could Gelfand have held it with 44…Bxf1!

[FEN "8/5p1k/1P4p1/2P4p/2b4P/5Q2/5PP1/4qBK1 b - - 0 44"] This position occurred on move 44 in the Carlsen vs Gelfand game in the World Championship Candidates, 2013. Here, Gelfand played ...
5
votes
2answers
153 views

Do symmetric positions have a higher draw ratio?

From my experience in chess, I have observed that my draw ratio in symmetric positions (e.g. the Italian opening) is higher than in non-symmetric positions (e.g. the Spanish opening or different ...
5
votes
5answers
305 views

What is the benefit of making the first move with a Knight?

I knew that some moves from some opening can transpose to another.. but if I move my knight first, does it's have benefit to me since in my Houdini, it's shows lower value than I move pawn first.. ...
5
votes
8answers
465 views

Is there a single best move in every position?

If it were possible to analyse every possible outcome of a position, would there ever be a single move that could be considered "best"? I know that this is how computers evaluate positions, but they ...
6
votes
1answer
149 views

Why is white in trouble in the following endgame?

Playing white against my computer I ended up in the following position (with white to move). To me it looked about even, but no matter what I tried I kept losing the position, and indeed stockfish ...
3
votes
1answer
120 views

ChessDB databases import

I've just installed the ChessDB software hosted at SourceForge. While discovering the software I see that the databases that come with the software are empty and I would like to know how to import ...
1
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1answer
177 views

What is happening in this puzzle?

I recently solved a puzzle at chess.com and it is below (I played white). What I don't understand is that why black moved its rook to h8 (1...Rh8). I think that black's position would have been better ...
3
votes
3answers
5k views

Free online analysis engine?

Is there an online analysis engine that allows you to enter a PGN and get a game analysis, showing where suboptimal moves were made? I know there are programs for download/purchase that do this, but ...
2
votes
2answers
139 views

What would happen if multiple GMs played on both sides of a chess match?

Imagine a situation where a team of top Grandmasters would face another team of top Grandmasters over a single chess board and play a series of games. Would the games always end in a draw? Would ...
5
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6answers
556 views

How to write out analysis of a game?

I have read that one exercise to improve one's analysis/thinking skills is to set up a position, then write out and evaluate all the variations that could take place. Or write out analysis of one's ...
2
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1answer
184 views

Why would black resign in this situation?

I was playing online with someone I do not know that is considerably better than me. I am still somewhat new and I can't figure out why they would resign after castling. What am I missing? [fen ""] ...
6
votes
4answers
252 views

A chess player's weakness assessed

How can I discover my weaknesses in chess and order them from biggest to smallest? I'm guessing a strong GM could analyze a couple of my games and do this for me. But I'm not sure it's worth the ...
2
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2answers
206 views

Chess Research Analysis Setup

For research purposes, I would like to have a chess engine hooked up to a tablebase where I can be guaranteed that the chess engine is looking at ALL moves and calls the tablebase in real time in ...
4
votes
4answers
703 views

How to automatically evaluate a player's performance in a game?

Suppose I have a completed game. I don't have Elo ratings of the players. My purpose is to evaluate a player's performance in the game based solely on his moves. Can this can be done automatically ...
8
votes
4answers
749 views

Did Anand have a forced win at any point in Game 9 of the 2013 Anand-Carlsen world champhionship match?

For much of today's Anand-Carlsen game, white seemed to have a powerful mating attack. But from the analyses I've seen, there was never a point where it was clear that black would not be able to ...
1
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1answer
76 views

Variation of Attack besides Center Control and Flanking

Does in official games, had happened when a player didn't concentrate his attack to center or by flanking?? In this case, my possible attack is used side of board when opponent had castling the king ...
2
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1answer
183 views

Strategy on castle (short or long)

As we know, we usually doing castle to move king to (assumed) safe place. But when we play short castle or long castle since my chess engine (Houdini) seems to prefer short castle when I play against ...