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182 views

Chess database software for variants

For regular chess, I use SCID and it works well. It has database searches, position searches, player stats, and a nice compact file format (i.e. not PGN, which is inefficient and big). Is there any ...
5
votes
0answers
84 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 ...
5
votes
1answer
334 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 ...
4
votes
1answer
152 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
votes
0answers
36 views

A script that can create a chess tree from an EPD file

Is there any script (any language) that can make a chess tree from an EPD file? Or what algorithm (any example) should be use to create it on my own? I am looking for one like the Chessbase opening ...
3
votes
0answers
53 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
0answers
22 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
123 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
285 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
178 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
47 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
27 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 ...
2
votes
0answers
122 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 "...
2
votes
0answers
151 views

Draw rates in classical chess between elite players?

I'm looking for detailed statistics exhibiting draw rate for elite players. I did find this and this publications, however, they only contain aggregated data for 2600+ players, and arrive at a figure ...
2
votes
2answers
55 views

Lc0 weights file

On Windows 10 I have installed the latest versions of Arena (v3.5.1) and the Lc0 engine (v0.23.1). However I have only found one weights.pb file that it will accept. The one in the link in this Q&...
1
vote
0answers
27 views

What sort of strategies unfold on this elongated board?

I recently found this incredibly elongated chess board on the /r/gaming subreddit, with this image: There was a comment thread discussing the potential strategies of playing on this board, with some ...
1
vote
0answers
102 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
18 views

Need Help: Chess live data api for wordpress

I am working on a project creating a chess news portal. Can anyone help with Chess live data API for WordPress? That way, I can display live results and updates automatically
1
vote
0answers
51 views

Is there any software (preferably Linux) that, when managing a database, can inform you about opening transpositions?

To make it simple, let's say that I play a game that opens with 1. e4 d5 2. d4. I use Scid-vs-PC, and in this position, it just shows a bunch of games. Od course, if black plays now 2 ... e6, we ...
1
vote
0answers
45 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
29 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
60 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
69 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
156 views

Chessersizes Errata

A quick search didn't turn up anything, but I have been wondering if anyone has ever published an errata sheet or some other update to Pandolfini's Chessersizes books, listing the corrections. In ...
0
votes
0answers
176 views

New Fritz 17 User

I have just moved from Fritz 13 to Fritz 17 and have set up a new database with all my club games. I can easily retrieve the game, however, when I press analysis and replay a new box appears with full ...