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Questions tagged [stockfish]

Stockfish is a strong open-source chess engine.

2
votes
1answer
356 views

Stop SF MultiPV from returning an upperbound

For a given position, I'd like to compute an evaluation of the 3 best moves. I send this to Stockfish: setoption name MultiPV value 3 position startpos go movetime 500.0 // search for 0.5 seconds I ...
0
votes
1answer
658 views

What fraction of a Pawn do the most powerful chess engines (Komodo, Stockfish, Houdini, Fritz, Hiarcs, Gull, …) use as their evaluation unit?

I've heard that the most common evaluation unit is 1/100 of a Pawn. But some engines use 1/1000 of a Pawn as their evaluation unit. I've also heard that Stockfish used 1/256 of a Pawn as its ...
3
votes
2answers
3k views

How to go about beating chess engines?

I play regularly long games (60min each) with Droidfish/Stockfish the depth is always close around 21. From time to time I overlook taktical flaws in my moves, obviously playing on worse positions ...
3
votes
1answer
372 views

Can you run “Full Analysis” in Fritz with a different engine?

I have added Stockfish to the Deep Fritz GUI, and I even marked all engines except for Stockfish as inactive. However, when I run the "Full Analysis" it's still using Fritz. Is there a way to use a ...
5
votes
5answers
8k views

GUI for stockfish that can analyse the full game

I am looking for a GUI for stockfish that can analyse the whole chess game and give me the following output: For every move in the game, it should give me a list of N (let it be 3) best moves with a ...
4
votes
2answers
4k views

Since each engine has its own style of play… which engines are more positional/strategic and which engines are more sharp/tactical?

I’ve heard that each engine has its own style of play. Some are more positional and strategic, while others are more sharp and tactical. And so my question is: could you roughly sort the following ...
13
votes
1answer
53k views

How to download Stockfish and install it on the Fritz/ChessBase GUI?

I'm on Windows 8. I have the Fritz/ChessBase GUI since I bought both Fritz 12 and Houdini 3 Pro. I would like to know how exactly can I download and install the free latest version (and most powerful ...
1
vote
5answers
2k views

How do I check if a move is legal using Stockfish?

Let us say that I input a wrong move in Stockfish. What answer will Stockfish send me back? Or is there a function to check if a move is bad? People, I found a solution by myself.
2
votes
1answer
974 views

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 ...
4
votes
2answers
801 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, ...
7
votes
2answers
2k views

Why does Stockfish website offer many apps to download?

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 ...
3
votes
2answers
2k 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
vote
0answers
754 views

polyglot bin file for closed ruy lopez opening

Does anyone know where I can get a polyglot bin file for the closed Ruy Lopez opening, such that I could use this with the Stockfish chess engine to learn / practice the related tabiyas.
21
votes
7answers
18k 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 ...
5
votes
1answer
1k views

How to make Stockfish always give the score from white's perspective in Winboard?

I use Stockfish 4 to analyze chess games in both Babaschess and Winboard. From time to time, Stockfish outputs a line with info like time, score, principal variation, etc. In Babaschess, the 'score' ...
4
votes
1answer
3k views

How to limit the depth of analysis in Arena?

I am using Arena with Stockfish-222-64-ja-intel. It thinks about 50 moves deep and heats up my laptop processor. All I was interested in, was a depth of about 12-13 moves and for the best line to be ...
7
votes
2answers
13k views

Playing chess on a Mac with Stockfish and some GUI

I have a Macbook OS X 10.6 and want to play chess against a challenging program. I'm not very computationally inclined but it seems that I need to download Stockfish and some UCI-compatible GUI. I ...
6
votes
1answer
1k views

Why can't I analyze with Stockfish 2.0.1 in Winboard 4.5 beta?

I have to ask an engine-related question: after I installed the Stockfish 2.0.1 engine on my Winboard 4.5 beta, I can't analyze with it. What I mean is, it's giving nothing in the engine output; it ...
7
votes
1answer
579 views

Why is the latest Stockfish (2.2.2) infinitely slower (than 2.1.1) in Scid?

I was about to spend some time researching this, but realized someone might have already looked into it; if not, I may just answer my own question in a few hours. Scid is pegging one core of the CPU, ...