Questions tagged [computer-chess]

This tag refers to chess games played by computers. If you want to ask a question about those games, use this tag. Otherwise, use the tag [engines].

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28
votes
2answers
3k views

How computers have changed the way humans play chess

A few years ago Vishy Anand mentioned in an interview that computers had changed the way humans play chess. Obviously computers help a lot in opening preparation, but what other concrete examples are ...
23
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7answers
13k views

Hardware used in AlphaZero vs Stockfish match

I understand that AlphaZero has to use a different kind of hardware than regular Stockfish. I would expect that the hardware has a large effect on engine strength. That's why I wonder whether there ...
20
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3answers
3k views

Why is Leela so good at beating Stockfish in the French/Caro-Kann?

I notice Lc0 is especially good against Stockfish in French / Caro-Kann pawn structures. However, I don't understand why. Here're a couple of games where Leela smoothly outplays Stockfish. Can anyone ...
20
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1answer
950 views

Is computer chess exhibiting the predicted “draw death”?

At various times, even going back 100 years or more, people have been predicting the "draw death" of chess meaning that top players will get so good that every game will be a draw. In the 1984 World ...
18
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6answers
4k views

Carlsen-Caruana Game 12

Any online search about the recent game 12 in Carlsen-Caruana's WCC is filled with the surprise caused by Carlsen offering a draw when in a (possibly?) winning position. It was announced on chess.com ...
18
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4answers
6k views

Creating chess engine, machine learning vs. traditional engine?

I am both an avid chess player and computer programmer. I would say that playing chess and programming are the two things I spend the most time doing. Naturally, I am wanting to create my own engine ...
18
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5answers
3k views

How useful is a 40-year-old chess book?

I have a chess book which I find great in terms of tone, formatting, etc., but the computer does not agree with some variations I gave it. How much has chess changed since 1977? I imagine the rise of ...
18
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3answers
7k views

Will quantum computers solve chess?

The theory is that there are more that 10^40 positions, and a computer that works with an atomic scale has to be impossibly large(As in galaxy-scale large), and well beyond our current level of ...
17
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5answers
1k views

How did the engines improve since Deep Blue?

Computer chess engines have gotten better since Deep Blue beat Kasparov in 1997. Did the algorithms get better, or were the improvements mostly due to the same algorithms running faster thanks to ...
14
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3answers
2k views

Alternative approaches to chess engine programming

As far as I understand, roughly speaking, chess engines work by: calculating all possible variations (game tree) up to some depth evaluating the final position based on some criteria (material, piece ...
9
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1answer
2k views

What longest number of moves for a forced mate position (including draw rules)?

What is the longest (currently discovered) number of moves for a forced mate position where players will use both the 50-move draw rule and the 3-fold repetition rule if it will help them avoid losing?...
9
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1answer
455 views

Have engines refuted any established openings?

Before engines were introduced to chess in late 20th centry, there were many established openings that were played by the top players at that time. I am wondering if any of those openings were refuted ...
8
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4answers
534 views

Computers finding computer moves

There are positions in chess where the only good move (e.g. only move that preserves equality) is very unnatural for a human player. For instance if this move goes against common principles or if it ...
7
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10answers
7k views

Is a Finite State Machine a good way to model chess?

A very common model in programming is the Finite State Machine (FSM) (see here for a great worked example.) Is a FSM a good way to model chess? What are the best ways to go about it? What chess ...
7
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4answers
576 views

How do top players move so fast?

I've seen 3 minute and 1 minute matches on Chess.com where the players move at insane speeds during the last few remaining seconds of the match. I'm talking in milliseconds, I'd at least take that ...
7
votes
2answers
931 views

What was the source of randomness in the Alpha Zero vs Stockfish match?

My understanding is that Alpha Zero's algorithm was fixed after the "learning" phase, so would it come up with the same move for every position? Was the variability in the match entirely due to a ...
7
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2answers
2k views

Alpha Zero vs Stockfish, French Defence, is this move for Black better?

I'm referring to the French Defense (C11 ECO code) game where Alpha Zero played 30. Bxg6 ! , sacrificing a bishop for a better position. After Alpha Zero's move 30. , I couldn't find any good moves ...
6
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4answers
7k views

What endgame, with 3 to 6 pieces, has the longest known forced checkmate?

I am wondering, what endgame, with 3 to 6 pieces, has the longest checkmate with optimal play? Right now, the longest I'm aware of is the two knights versus one pawn endgame, which in certain ...
6
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2answers
1k views

What happens if a strong chess engine plays with itself many times?

If a strong engine (eg. Stockfish) plays with itself many times (say, 100 times), what will be the outcomes in terms of the following: What will be the proportion of draws? Will there be wins/losses? ...
6
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1answer
1k views

Is Deep Blue outdated?

I bought a laptop, a Dell, model XPS 13. I found a technical review which mentioned the Fritz test: Fritz is a chess benchmark that tests the computing capabilities of the CPU with various chess ...
6
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6answers
2k views

Can a human defeat an engine in a 10-game match if he is given the White pieces and draw odds in every game?

What would happen in a 10-game match between one of the strongest human player (Carlsen, Caruana, Aronian, Kramnik or Anand) and one of the strongest engine (Komodo, Stockfish or Houdini), but with ...
6
votes
2answers
458 views

Question about the move h5

I recently played a chess game whose link is: https://lichess.org/pCFw1h2w/black#5 After running a computer analysis, I found that in this position: I know that even though Stockfish does not tell ...
6
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3answers
453 views

Is dead position problem solvable?

In chess, there are some dead positions (FIDE Laws of Chess). 5.2.2 The game is drawn when a position has arisen in which neither player can checkmate the opponent’s king with any series of legal ...
6
votes
1answer
623 views

Did Deep Blue play like a human?

Kasparov said, in Game Over: Kasparov and the Machine, that Deep Blue "sank into deep thinking" and took like 15 minutes to make a move. The movie tells the story of their match, in 1997. At a ...
6
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2answers
611 views

Human and computer vs computer alone

How much stronger are human/computer teams vs. computers alone? My understanding is that that advantage is enough to be decisive, especially in correspondence play, but just how large is it?
6
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0answers
195 views

Are there any dicylic graphing programs for chess? [closed]

Although chess is frequently thought of as a tree structure, it is not because positions can be arrived at through different move orders and moves can be repeated. Are their graphing programs/...
5
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6answers
971 views

Can you objectively determine who was the best chess player of all time?

There have been a number of statistical attempts (e.g., chessmetrics and edo) or computerized attempts to determine who was the best chess player of all time. The statistical approaches attempt to ...
5
votes
2answers
459 views

Engine that likes to draw

Is there a world-class chess engine that can be configured so that it equally likes to draw and win? I imagine the engine would really like making exchanges, for example. What would happen if you ...
5
votes
1answer
1k views

Implementing Late Move Reduction (LMR) inside iterative deepening

Here I am trying to improve my engine, and the next feature on the list is LMR. I understood the general ideia, but since I don't want to introduce bugs and the CPW on the subject has no code, how do ...
5
votes
3answers
724 views

Do top chess grandmasters have significant drawing chances against top engines?

the likes of stockfish and komodo are much stronger than humans. The 3300 plus ratings of these engines suggests that even the top humans would find it impossible to draw even 1 game, but is this ...
4
votes
3answers
1k views

Validate Engine moves using Perft and divide

I'm developing a small Engine in Java, before trying something more elaborate in C/C++. Right now I'm running some perft tests (the 'perf_talkchess' file), but as expected it has some bugs. Consider ...
4
votes
2answers
939 views

In chess engines (A.I) how are the values for Piece-Square Tables for simplified evlaution function determined?

I wanted to know how are the values for piece square table are determined for simplified evaluation function in chess A.I engines For example Source : https://medium.freecodecamp.org/simple-chess-...
4
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1answer
548 views

Improvement of chess engines over time

Chess engine strength has increased considerably over time due to increase of computer strength, but also improvement in algorithms/parameters. Is there any statistics or graph out there which shows ...
4
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1answer
162 views

How strong is each level of Atari 2600's Video Chess?

I used to play Video Chess on Atari with my dad when I was a kid. What is the approximate FIDE rating of each level?
3
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4answers
11k views

Is Magnus Carlsen ever going to play against Stockfish in a event?

I was wondering if the actual champion is ever going to play against a chess engine like Kasparov and Krammik did? Or is this kind of event not going to happen anymore due to the strength of the ...
3
votes
4answers
181 views

Central control disliked by engine in 1.e4 e6 2.d4 a6 3.c4

Recently I played a chess game that started with the moves: 1. e4 e6 2. d4 a6 and then I played 3. c4 which according to Stockfish is inaccurate. [fen ""] 1. e4 e6 2. d4 a6 3. c4 What is the ...
3
votes
5answers
229 views

Are engine ratings directly comparable to human-level play?

Yesterday, I play a game against Stockfish 7, and it has 2200 rating points. I drew 2 games, and lost 1. The point is that if I play against a human-rated 2200 player, I would probably have a ...
3
votes
3answers
342 views

Theoretically, shouldn't analysis of any chess move have exactly nine possibilities?

Since chess is finite and deterministic, it is theoretically possible to objectively label any position as winning, losing, or drawn. For example, it seems very likely that the starting position is ...
3
votes
1answer
1k views

Polyglot Opening Books vs. Chess Opening Tree

Depending on the GUI, I have noticed some use polyglot files for their opening books and others use .ctg(chess opening tree) for their opening books. Is there an advantage or disadvantage to either ...
3
votes
2answers
258 views

On how old hardware can modern engines be run, and how strong are they?

For example, could modern Stockfish theoretically, with the hardware at the time, be entered into the 1974 World Computer Chess Championship? If so, would it be grandmaster level?
3
votes
2answers
113 views

How many games to get a good idea of computer chess board rating?

I have an old Radio Shack 1850 Electronic Chess Computer, which I would like to know the ELO rating each level plays at. The instructions just give average number of seconds per move. I figure I ...
3
votes
1answer
143 views

At what handicap are humans as good as computer?

It is well known that the best chess engines are now far stronger players than the strongest human players. But is it known what the smallest handicap is that makes them roughly equal?
3
votes
1answer
138 views

CLI tool to let chess engines play each other [duplicate]

I'm looking for a command-line tool to let two chess engines play a game or a tournament against each other. The tool should support UCI and/or the xboard protocol and it should allow to save the game ...
3
votes
3answers
932 views

Using a Linux UCI Engine with a GUI (eg. Fritz 15)

Is there any way a Linux UCI Engine (such as StockFish 8) be used with Fritz 15? Will this involve customizing the source code and rebuilding to implement things like hash size, tablebase locations, ...
3
votes
1answer
2k views

Can you compile Stockfish in Windows without Unix/GNU?

Can you compile Stockfish in Windows (without Unix/GNU), perhaps via Visual Studio? The official "how to compile Stockfish on Windows" suggests using MinGW (see links below) and I am looking for a ...
3
votes
1answer
132 views

How do you implement Alpha-Beta search when you can only compare 2 positions to each other?

In their paper about DeepChess, http://www.cs.tau.ac.il/~wolf/papers/deepchess.pdf, David et al show a cool way to train a net to play chess. I've trained my net to some degree of success and I want ...
3
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3answers
3k views

Chess computers in human tournaments

Do computers play in ordinary human grandmaster chess tournaments with time limits at 40 moves in two hours etc? If so how do they fare?
3
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0answers
80 views

How to slow down replay in Arena [closed]

I am using arena to play through pgn games. Unfortunately the replay feature is far to fast for me. I have tried to slow it down by changing the settings in levels but this does not work. Thank you ...
3
votes
0answers
200 views

What is approximately the Elo rating of an engine which selects its moves randomly? [duplicate]

An engine which, in a given position, finds all the possible legal moves, and then selects one of them randomly (each move has the same probability of being chosen) and plays it on the board. Its ...
2
votes
4answers
1k views

Are computers playing good chess beyond what humans can see?

It is more than a decade now that no human has beaten a top chess program, and now there are computer vs computer matches continuously running and getting results. Those results are used by ...