An engine is any machine or computer program that plays chess.

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What are the scales of the numerical evaluations of the strongest engines based on?

Different engines have different scales for their numerical evaluations (for example, Houdini's evaluations are usually much lower than Stockfish's evaluations). This is because different engines use ...
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44 views

How to get position evaluation with UCI?

I am trying to get score about current position directly with UCI (I am using latest stockfish). After reading the protocol I see that these commands ask engine to analyse the position: uci ...
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1answer
38 views

What relative point values of pieces do engines use?

Humans use: Pawn = 1 Knight = 3 Bishop = 3 Rook = 5 Queen = 9.5 Bishop pair = +0.5 But I would like to know what relative point values do engines use (preferably strong engines, like Stockfish, ...
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27 views

How to make own opening book for chess engine?

I am currently working on a chess engine in java. I am using mini max algorithm with alpha beta pruning to select the best move. However it is inefficient to use the algorithm for selecting opening ...
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45 views

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 ...
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1answer
48 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 ...
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2answers
126 views

How to repair black's position in this Game?

In this game black made some mistakes which leads to final position. While analyse this game engine not willing to capture bishop . [Event ""] [Site ""] [Date "2014.07.05"] [Round "-"] [White ...
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2answers
126 views

Stockfish Chess

I want to get a strong engine to practice while I'm not home. Look at: http://stockfishchess.org/download, we see a list of apps to download for the Stockfish engine. Why are there three apps to ...
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0answers
59 views

Has there ever been a game where multiple humans play against a single chess computer?

I'm wondering if the following scenario has ever been played out: Once side of a chess game is played by multiple humans at once, collaboratively determining what the next move will be. This ...
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1answer
158 views

Fastest way to beat Gnu-Chess Easy as black?

This is more of a puzzle. As far as I can ascertain, Gnu-Chess Easy always plays the same, and so the question is, is what are the least amount of moves required to beat Gnu Chess on easy. Just to ...
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3answers
160 views

In correspondence games, is it considered cheating to get an engine evaluation of the current position?

Is it considered cheating to simply get an engine score for the current position in an ongoing game without looking at any of the generated lines? I'm guessing the answer is yes, but just curious (and ...
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3answers
239 views

Is there a software to measure a player's strength based on a game?

I flicked through some papers that described how one can obtain an ELO estimate based on a game. (Basically we were comparing players' moves to the best moves suggested by a strong chess engine. My ...
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149 views

Why is engine's speed slow at the start?

I noticed that the nps (nodes per seconds) of different chess engines is very low at the start of the analysis and only after several seconds reaches is peak value. Does anybody have an explanation of ...
2
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1answer
93 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 ...
3
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4answers
222 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: ...
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59 views

App to read pgn surface

Is there anyway to read pgn's on the surface 2 (windows 8), besides using any online tool for that matter.
2
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1answer
158 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 ...
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3answers
125 views

Rate the difficulty of this computer?

I've just been playing for fun online a little bit, and was wondering how hard the computer I've been playing against is. NOTE: This was made for a javascript competition, and doesn't include ...
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4answers
254 views

Are modern chess programs tactically perfect?

In a given situation, can we assume that a chess engine is tactically perfect - meaning that it can find all possible tactics which are there in that position. Is it possible for the best of modern ...
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1answer
112 views

What is the strongest chess engine for blitz time controls?

There are all kinds of lists of the strongest chess engines at standard time controls. Here's one I picked more or less at random. But does anyone track which engines are strongest at faster time ...
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4answers
478 views

Are computers destroying chess?

These days I have been watching the candidates tournament, and I couldn't avoid noticing that players are reeling/scared of computer home preparation "little bit too much". For example: in the ...
4
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2answers
170 views

Javascript based Chess engine

In one of my previous questions I asked about comparison of the strongest chess engines and got a really good answer. While there are little or no doubts that chess engines are stronger than humans, I ...
6
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2answers
290 views

Is there a chess engine that does NOT use brute-force search?

Every chess engine I've ever heard of (including all I found listed on Wikipedia) uses brute-force search with an evaluation function (minmax algorithm) to decide on its move. This is not how most ...
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5answers
436 views

What are the first moves chosen (White), by brute force chess engines?

Title says it all. Feel free to add comment, theory, or explanation. Just to clarify, this is only regarding turn 1 of White, and no proceeding turns after it.
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1answer
63 views

Alpha-beta safe on incomplete tree?

I'm writing a simple chess program from scratch on a hobbyist basis. I think there is something fundamental I'm overlooking or don't understand. I read the following ...
3
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4answers
374 views

Can Grandmasters beat computers when given time-odds?

For eg., if a grandmaster is given 10:1 time odds, will he be able to beat a computer? For eg, if the GM is given 120 minutes for the entire game and the computer is given 12 minutes? If not 10:1 ...
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2answers
125 views

has the success of computers reduced the stature of chess as an 'intellectual' sport/game?

As human beings, we know that there are different aspects of intelligence. Often, innovation and creativity are considered to be higher levels of intelligence. Whereas, the ability to calculate is ...
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177 views

Does depth (number of ply) still matter once it is high enough?

This isn't real, just imagine this happening. Computer A is supercomputer. It can calculate 30 ply deep within 20 seconds. Computer B is supercomputer. It can calculate 15 ply deep within 20 ...
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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 ...
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3answers
250 views

Is there a computer program that generates quality chess problems?

Is there a chess engine that automatically generates quality chess problems. For example I will input 3 - it produces a mate in 3 problem. But the problem shouldn't be so obvious that one can solve in ...
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2answers
196 views

What makes chess engines so good at chess?

Computers are thought to calculate every possible move. However, for eg. there are about 20 possible first moves and 20 possible responses to that and so by this logic the no. of positions after for ...
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2answers
192 views

How can I automatically extract features from a position?

I am working on a project where I take a chess board position (FEN string converted to binary) & it's evaluation score and feed it to a neural network. My aim is to make the neural network ...
5
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8answers
473 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 ...
2
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1answer
383 views

Step-by-step guide to prepare yourself

Let's say that I have got three years to prepare myself before my first tournament. Here's my status. I need to come up with a plan. Can you help me prepare one? I am a chess enthusiast. I am ...
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2answers
399 views

Setting up a game between two computers

I was hoping that this would be a simple exercise but I have spent the last two days looking into this and can not find an answer (easy or otherwise). What I want to do is have my iMac play my ubuntu ...
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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 ...
3
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2answers
935 views

How to install stockfish on ubuntu?

Is there an easy guide how to install stockfish on ubuntu? From the main site I can not find any information and github repository does not provide many details. I would really appreciate if someone ...
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3answers
151 views

How to sort a chess PGN game by date?

Is there a way to sort a PGN chess game by date and export the sorted games as a new PGN file?
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4answers
922 views

Chess engine with API

I am looking for a chess engine which provides a normal API which I can use with some high level programming language like C# or python. I went through the list of leaders (Houdini, Komodo, Stockfish ...
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1answer
181 views

a good uci to winboard adapter

I found one before on the internet but it keeps the CPU at 100% ,hangs a lot, and doesn't exit when the program (ChessMaster in this case) close.
4
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1answer
156 views

Using chess engines to find moves sequence to make a position

Is there any way to use chess engines (by commands or GUI tools) to find the sequence of moves need to transform an initial position(P1) to a target position(P2) while the count of moves is exactly N? ...
4
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2answers
258 views

Humans against computers: is it an advantage to humans to have more time or less

It's clear to me that humans are at a loss when it comes down to playing against computers. (not only due to the answers to my last question (Humans against computers). But, would humans (maybe a ...
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4answers
322 views

Humans against computers

Are human ratings also progressing, could humans catch up with computers? (maybe playing against strong computers makes us strong) Are team of humans able to defeat computers? Is any competition like ...
4
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2answers
821 views

Why buy Houdini?

Why buy Houdini (or Rybka) if Stockfish is essentially as powerful and also is free? Are there special features or a nicer GUI? Can't those features be implemented within the Stockfish engine?
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2answers
194 views

Studies that have been cooked by computers

A study is unlike a regular chess problem. Instead of "mate in 3" (for instance), a study's instructions are something like "White to draw" (for instance). What this means is to find a line of play ...
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2answers
1k views

How to represent chess state with a bitboard

I'm interested in programming a chess engine and using bitboards to represent the state of the game. I know there are a few open source chess engines that use bitboards, but its not so easy to look at ...
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4answers
178 views

Will computer knowledge reach a perfect game, after expanding prepared openings/endgames?

If computers just check in an openings-DB what to do in the first 10, 15 or even 20 moves, and if they just check the endgames-DB at the endgame; wouldn't it reach a point where they have a DB of ...
8
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3answers
297 views

Are there games between top computers which uncovered never-seen-before ideas?

Are there games between top computers which uncovered never-seen-before ideas? And if so, how can humans notice? Addendum: I understand the position of James Christopher in his answer, but my ...
3
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1answer
231 views

Connecting opening book to chess engine

I have file Rybka.exe and when I use it for the first moves, it always goes Nf3 or Nc3 only (even at strength 1000 and depth 1). I assume that is because it doesn't have opening book assigned (?) to ...
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153 views

Chess engines' .dll files usable in C# projects [closed]

Are there any free/paid chess engine .dll files that could be used in a C# project as a reference?