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Questions tagged [software]

Questions about chess-related software, but not including chess-playing engines; there's a more specific tag for those questions, the [engines] tag.

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6 votes
0 answers
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What program/website shows the last captured piece in displaying the last move played in a position?

The following image appeared in the question Can anyone explain this sacrifice? You can see a pawn is captured. Sometimes a position will show the last move played or whose move it is but doesn't ...
BCLC's user avatar
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4 votes
0 answers
421 views

Chessmaster: Modern version of lectures?

Thing 1: This lichess study says Examining positions from Josh Waitzkin's academy, Larry Christiansen's attacking chess, and other exercises or games from this (now) ancient chess program in light of ...
BCLC's user avatar
  • 2,178
3 votes
0 answers
254 views

I have a code in Python which should compute fully optimal moves in an endgame for Black and White player, but it seems that k is playing suboptimally

In this example "'fen': '7Q/8/8/6k1/2K5/8/8/8 w - -', 'moves_to_mate': 9" should be "'fen': '7Q/8/8/6k1/2K5/8/8/8 w - -', 'moves_to_mate': 11" according to Stock-Fish. EDIT The ...
user2925716's user avatar
3 votes
0 answers
97 views

Why this Python code for a simple endgame yields wrong results?

I have a Python code as below for a trivial (for a human) endgame, but I'm unable to make it output correct results. I'm seeking for a fully optimal play by both player: the stronger player should try ...
user2925716's user avatar
2 votes
0 answers
68 views

Easily modifiable chess engine

I'm looking for a chess engine that I can (relatively) easily go into the source code, make some tweaks, recompile, and run the modified engine. Ideally, the source code would be well documented and ...
isaacg's user avatar
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2 votes
0 answers
53 views

Transposition table store/retrieval confusion

I am struggeling to get the transposition table aspect of my search algorithm right. These are the table functions: pub fn lookup(&self, hash: ZHash, depth: u32) -> Option<&...
Curunir's user avatar
  • 121
2 votes
0 answers
67 views

Tournament Search In Chessbase Online

How do I search for games from a specific tournament in ChessBase Online? For example, to see games from the United States Championship, you have to search for "USA-ch". How would anyone ...
SteveF's user avatar
  • 21
2 votes
0 answers
354 views

How to turn off Contempt in engine analysis?

I'm trying to analyze a game with the python-chess package, and for that I want to turn off the "Analysis Contempt" option in Stockfish. However, it seems it doesn't work, and I don't know ...
JohnnyQ's user avatar
  • 223
1 vote
1 answer
70 views

Lower bound on the number of moves to reach given position

I'm trying to analyze opening positions using the Lichess evaluations database. Loading the entire database into memory is somewhat costly, so I'd like to filter out positions that occur after, say, ...
Jacob's user avatar
  • 111
1 vote
0 answers
53 views

I have a simple code which has a bug at the particular place given below, but I'm unable to detect it exactly and fix it

I have asked a similar question elsewhere and I have detected where roughly is a problem. It is in this function which gets processed for node "1" only, see the output section below: (I'm ...
user2925716's user avatar
1 vote
0 answers
54 views

How to easily find out which games in pgn database were already analysed/processed

Which software (ideally free/open source (maybe Scid or Chessx) gives the possibility to easily see on the list of games (in PGN) which has: alternative moves or comments added? Basically what I need ...
bridgemnc's user avatar
  • 111
1 vote
0 answers
2k views

How can I automate finding games that had brilliant moves in it by a particular player on chess.com?

There's a feature on chess.com for highlighting brilliant moves. I have 30,000 games back to 2015 in one account before that statistics feature came online, and I'd love to hunt for any brilliant ...
SwimBikeRun's user avatar
1 vote
0 answers
435 views

ChessBase and Scid vs Pc Annotation

I am legally blind, but I love to play chess. I like to annotate games. Chess.com does it right in my opinion, but only because the arrows are thick and opaque. I am wondering, is it possible to ...
Josef's user avatar
  • 11
0 votes
2 answers
21 views

Resources for creating openning books or chess trees offline on PC

Please Suggest resources for creating, viewing and updating opening books or chess trees offline on PC. preferably with the ability to add moves or lines manually and with open source or free software ...
Wassim Saeed's user avatar
0 votes
3 answers
158 views

xboard and stockfish not working well together

It looks like xboard GUI and stockfish engine are not close friends. I can pick stockfish as an engine in xboard, but stockfish will not respect the time limits (unlike if it is used by chessX). ...
Gyro Gearloose's user avatar
0 votes
0 answers
83 views

Tools to study positions with partial information?

TL;DR Is there a chess engine or other tools to study a "position" where the exact location of certain pieces is not known? From the following chess position, a plan could be to win the a2 ...
FxMySz's user avatar
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0 votes
0 answers
231 views

What's the fastest way to detect blunders with an engine?

My main goal is to detect blunders in chess games. I wrote a python program that loads a large pgn database and then analyses the games. I did it by letting Stockfish go through every game and every ...
RottenSchnitzel's user avatar
0 votes
0 answers
155 views

How to validate chess moves with a server? Winboard and Unity 2020.3

I'm looking for advice on how to implement online chess move validation using a winboard chess engine. I am creating a mobile battle chess game in Unity 2020.3. Right now I have the possible moves for ...
real_rashad's user avatar