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6
votes
0answers
72 views

What is the typical move prediction accuracy of human chess grandmasters?

I couldn't find any data about the percentage of moves that a typical human grandmaster would be able to predict in games of other human grandmasters. To clarify my definition of accuracy: The ...
6
votes
0answers
140 views

16 roses, 16x16 board; maximum double-attacked squares while all 256 squares are attacked at least once?

The rose is a piece that is best described as a "circular nightrider", able to reach up to 32 other squares from the center of a 13x13 area by making consecutive knight jumps in a rotating fashion in ...
6
votes
1answer
380 views

From a full board to a pawn endgame in the shortest possible number of half-moves

Is any game known where all the pieces (except the pawns) are still on the board, and where a piece (not a pawn!) is captured at each half-move, leading to a pawn endgame? In other words, is there a ...
5
votes
1answer
200 views

What happens if a player dies at the board? What is the ruling?

What happens if a player dies at the board? What is the ruling? I am interested in both FIDE and/or USCF rules. I seem to recall about 40 years ago, when reading my first copy of the USCF rule book, ...
4
votes
0answers
61 views

Does some GM or notable coach consistently employ “hand and brain” as a teaching tool?

I've seen some streamers do what they call "hand and brain", meaning that one person plays while the other chooses the kind of piece that they must move. All cases I've seen were intended for having ...
4
votes
0answers
46 views

Resources for annotated or commented games by level of audience

Similar questions have been asked before here or here. Still I think it would be more useful to have these resources listed by level. There is not much point for a beginner to listen to a GM ...
4
votes
1answer
175 views

The Evolution of the K-Factor

The change in Elo ratings depends, among other things, on the K-factor (or development coefficient). Current rules FIDE Rating Regulations effective from 1 July 2017 give the following values: K = ...
4
votes
0answers
153 views

Are these magics wrong?

I am working on my chess engine and wanted to finally implement magic bitboards to get a huge increase in performance. Basically I was writing a method to check if a number can be used as a magic for ...
4
votes
0answers
81 views

Full “reverse checkers” position in GM game with 12 or more pieces per player?

In yesterday's Tata Steel tournament in this game between Dubov and Artemiev this position was reached: [title "Dubov - Artemiev Tata Steel 2020"] [fen "r1r5/1p1q1pk1/2n1p1p1/2RpP2p/p2P3P/P1Q3P1/...
3
votes
1answer
56 views

Discovered attack in quiescent search

I'm implementing quiescent search in my chess engine, although just capturing moves have been generated. In the below position, at 1 ply, the white queen captures the pawn, but the quiescent search ...
3
votes
0answers
56 views

Creating a new NN for chess

I'd like to have my own chess engine similar to Leela for personal use. I’d want it to have a decent strength, let’s say 2k, and be able to play with it. I'm wondering if I can use Leela to create a ...
3
votes
0answers
70 views

How to Create Positional Theory

I've been playing Kraton Chess, which is basically standard chess except there are 96 different possible starting positions that are similar to the standard starting position. All the rules of ...
3
votes
0answers
30 views

Human assisted handicapped engine against engine, adjustable parameters

I am looking for software preferably local interface on windows, to play human+engine against engine with access to search parameters such as depth and "greed" or dismissal factor (controlling ...
3
votes
0answers
136 views

Online chess with full disclosure of name and FIDE ID

I would like to play online chess via an interface where name and FIDE number are disclosed, mainly because I believe that this discourages engine users. A few questions: I found the FIDE Arena ...
3
votes
0answers
147 views

Wrong perft result?

I'm writing a chess engine for fun. Currently I'm finishing writing the move generator. During the research I leaned about PERFT for debugging my software. Indeed, I found many bugs, some of them was "...
3
votes
0answers
306 views

Is this a sound elephant offer?

In the following dobutsu shogi position, is Gc3xc2 a bad move? ABC +---+ 1| | g 2|lce| 3|E G| 4| L | *C +---+
3
votes
0answers
206 views

Elo rating software with automatic random matchups

This question is not about chess per se, but I am looking for a software that could generate random matchups through a list of 200ish options/people, then I could choose the winner and it would rank ...
2
votes
0answers
26 views

One board tournament

I work at a public library and we used to offer a monthly chess night, which is on hold right now due to lockdown regulations. We are planning to offer a small garden chess tournament outside the ...
2
votes
0answers
59 views

Play against a computer, but only with a few pieces and without the kings

I would like to practise playing chess against an chess engine/program, but only with a few pieces, without the kings. For example, 3 pawns against one knight. Does exist any chess engine/program ...
2
votes
0answers
33 views

Will FIDE extend time limits on certain qualifications given the suspension of chess during Covid-19?

We already know that there has been very little FIDE rated chess played in April. There are a number of areas where FIDE has time limits. For example: Unrated players have 26 months to get results ...
2
votes
0answers
86 views

Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense

I seem to keep losing games as white in this opening. What systems is good for white and what are the developing ideas before the middlegame for white after 4. dxc5? [FEN ""] 1. e4 c6 2. d4 d5 3. e5 ...
2
votes
0answers
39 views

Where to find cross table for 1956 Thanksgiving weekend Eastern Open?

Berliner won this tournament. Chess life/review reported it. Newspapers reported it. The Eastern Open in 1956 was Thanksgiving weekend in the YMCA in DC. Berliner won it. Rossolimo, Lombardy, ...
2
votes
0answers
53 views

How to reduce the number of playouts on LeelaChessZero?

So after checking the wiki it seems the parameter "--playouts" allows to chose the number of playouts. But when I try it on my laptop it just fails: $ ./lc0 -w meangirl-7.pb.gz --playouts 5 v0.23....
2
votes
0answers
30 views

Where to find a list of the computer stored in the FICS Games Database?

According to the FICS Games Database there are currently 1,525 "computers stored". Such accounts are indicated by a "(C)" after the username. However, this suffix does not seem to be recorded in the ...
1
vote
2answers
19 views

Why is ne2 better than nf3?

I played nf3 for attacking on king side which is about to castle having some plans to make a battery in future after castling but I feel ne2 is making a block for re1 at some point. Any suggestions?
1
vote
1answer
23 views

Why does FIDE recommends using German numbers and piece names for blind and visually impaired?

While reading FIDE version of the rules, I stumbled upon Appendix E: Rules for play with Blind and Visually Handicapped. There, in E2.1: The moves shall be announced clearly, repeated by the ...
1
vote
0answers
39 views

UCI protocol recent “official” specifications

I am looking for the most recent specification (offical would be perfect) of the UCI protocol. I found http://wbec-ridderkerk.nl/html/UCIProtocol.html but it is from 2004. The most recent I could ...
1
vote
0answers
28 views

ICC - How to Create/Custom Board and Pieces?

I wanted to be able to customize my board and pieces on possible blitzin from the ICC and ICC for Windows. Can anyone show me how?
1
vote
0answers
26 views

How can I set up xboard with an engine in Linux?

I'm trying to use xboard in Fedora and have only been able to get it to work under very specific circumstances. I installed it through my package manager and installed Stockfish as well. Without ...
1
vote
0answers
30 views

Arena Question-Can more than one match be played at same time in a tournament?

I am using Arena 3.5.1 version. Is it possible that more than one game can be played parallelly in the tournament? I want to start a Round-Robin tournament between a number of chess engines including ...
1
vote
0answers
23 views

ChessBase 15 Alternative Annotation Language

I am still investigating potential causes of the problem I have spotted at Comments from (commented !) games lost in "ChessBase to Scid on the go" conversion process So, in ChessBase 15, ...
1
vote
0answers
42 views

Comments from (commented !) games lost in “ChessBase to Scid on the go” conversion process

EDIT 1, 20/04/2020 In my question, I focused on the game Vachier-Lagrave vs Carlsen, Sinquefield Cup 7th, Saint Louis, 28/08/2019. It has annotations in english in my ChessBase database, and it has ...
1
vote
0answers
30 views

ChessBase15 “reference” search and behaviour regarding repetitions

Regarding this "classic": rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w - - 0 1 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bc1 Nf6 I wanted to see how many games were drawn ...
1
vote
0answers
46 views

Chessbase opening book (ctg) created from Chessbase database has slow access from Fritz or DroidFish

I want to build a Sicilian defense ChessBase (ct* format) opening book. I have the up-to-date Mega Database 2020 and I filter all games with an B20-B99 ECO, which gave me roughly 1.2M games. Then I ...
1
vote
0answers
116 views

Chess Problem: Reset The 50-Move Rule!

While chess problems and such are usually meant for Puzzling Stack Exchange, I thought that this one should be an exception since it’s more relevant IMHO. Reseting the 50-move rule, i.e. restart the ...
1
vote
0answers
85 views

What Sicilian Defence variation has the most similarity to the Dutch?

Given that in GM Simon William's book The Killer Dutch, Williams says that the Sicilian and the Dutch are mirror images of each other, as Williams states "If you look at the first move, you can see ...
1
vote
0answers
69 views

Is there research on how successfully chess can discipline children?

According to the article Armenia makes chess compulsory in schools, Armenia made chess mandatory in school for the sake of discipline. A lot of people in the real world don't work together to organize ...
1
vote
0answers
67 views

Most different openings by transpositions?

What sequence of opening moves can include most different named Openings or Defenses by transpositions? For example, I just played a bullet game that went: 1.d4 e5 2. e4 d6 3. Nf3 Nc6 4. Bb5. In ...
1
vote
0answers
64 views

Bela Berger and Blindfold Chess: What do players “see” on the board?

I was looking at the interesting career of Bela Berger. On this oral history site, Bela Berger talks in an interview. Here is a quote from the site: "Berger, international chess master, speaks ...
1
vote
0answers
53 views

Are there studies showing that descriptive notation is easier to use for blindfold than algebraic notation?

What studies have compared effectiveness for thinking by chess players using descriptive vs algebraic notation?
1
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0answers
127 views

Why did Puzzle Rush stop at the second fail?

I was playing the popular Puzzle Rush game on chess.com (3-minute version), and the game stopped when I missed the second puzzle (I had 8 seconds left on the clock). The statement is "Three strikes ...
1
vote
0answers
70 views

SCID vs. PC: Multi-Engine Analysis

Is it possible to configure SCID to output the annotating engine in the variation itself? For example; Ne5 (Stockfish: -0.01 / +0.32 25. Bc4 ...) (Engine2: +0.20 / +0.48 25. 0-0 ...) (Engine3:...
1
vote
0answers
31 views

Using Arena (Linux version) with unequal time limits

I use Arena with different engines to study different positions. One thing I haven't figured out is whether it's possible to use Arena to play against an engine where, for instance, I give the engine ...
1
vote
0answers
77 views

Extracting “D” in SCID vs PC Analysis

Adding to this question, Scid PGN analysis using Stockfish, I ran a batch analysis using scid. Now, I want to extract only the "D" diagrams. How can I do this? Thank you for your advice.
1
vote
0answers
80 views

How to search for exact position (FEN) in CQL 5?

I am using CQL 5 port in SCIDvsPC 4.19, my basic working query in CQL search window currently looks like this: cql () initial {player white "Anand" result 1-0} How would one include FEN string ...
1
vote
1answer
24 views

CCRL games in Chessbase's reference search : not enough grand master games

I downloaded a PGN of CCRL 40/15 games from http://www.computerchess.org.uk/ccrl/4040/CCRL-4040-commented.[1138203].pgn.7z and opened it in ChessBase, and converted it into a cbh. (I can even put ...
0
votes
0answers
8 views

Suggestion for blindfold exercises

I can know name the color of any square.So any suggestions for some other visualization exercises I can do to improve my blindfold chess?
0
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0answers
32 views

Alpha Beta pruning strange behavior

I'm sorting the moves with MVVLVA and I feel it works but I'm watching a strange behavior. If I sort the moves I get these cut off from the initial position: Deep: 17 97 1425 10163 93206 If I don'...
0
votes
3answers
147 views

Chess Problem: White to play and mate in two

White's turn, checkmate in two moves How does white deliver checkmate in 2 moves?
0
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0answers
47 views

Are there any others sponsoring postal chess after FIDE USCF ICCF CCLA?

Is there a list of all the people sponsoring 'postal' chess? USCF and ICCF seem to be the two main ones. Does FIDE do it? Does CCLA still exist? I would guess that some web sites could be doing it ...

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