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2
votes
1answer
79 views

East and West German Chess

Interested in chess history, I wonder if there is an accessible data set that lists all players from East and West Germany in the 80's, ideally with information like the FIDE website (name, national ...
4
votes
2answers
137 views

Can I host lichess server to my local machine to use the study offline?

Lichess is a free, Ad-free and Open-Source chess server. To me, it has the best STUDY option over the internet. I am thinking whether it's possible or not to host a localhost setup using the source ...
6
votes
5answers
1k views

The Vienna Game: Good, inferior or bad?

I have been taking a look at 1.e4 2.e5 2.Nc3, which is known as the Vienna Game. At this point I have become familiarized with a substantial amount of variations and main lines. The principal ...
5
votes
1answer
101 views

What insights have neural networks revealed about chess?

I've been interested to see an analysis of the decision making processes of an NN in determining the difference between good and bad moves. The only writings I've seen is about how NN can be applied ...
2
votes
1answer
62 views

Is it necessary to write your calculations?

I have heard many times that while you're doing endgame studies,you should write your calculations,like candidate moves,variations.Is it really necessary?Can't i just check each variation one at a ...
10
votes
6answers
8k views

Why do high level players memorize specific games?

Inspite of having such a large number of possible positions and games why do high level players bother about some specific game from some million years ago ? It may be helpful in understanding ...
3
votes
1answer
49 views

How to watch PGN at different speeds?

I am looking for a program for Windows or an online service for viewing PGN at variable speed. I know that lichess has fast and slow speed, but I want more adjustable settings.
4
votes
2answers
215 views

Why is a player allowed to resign in an impossible to lose position?

Today I played a game on lichess where my opponent had a King and two Knights vs my lone King. I believe my opponent intended to offer a draw, but they accidentally resigned. What is the rationale for ...
3
votes
1answer
102 views

Which engine is better at Chess960-Stockfish or Leela?

It seems that TCEC has seen Stockfish and Leela go back and forth. It is probable that these days Stockfish is a little bit better than Leela. I was wondering, since it is different in Chess960, which ...
5
votes
2answers
981 views

How to calculate the number of positions in chess?

For layman, can someone explain how you calculate the number of available positions in a chess game, and how do you get the huge number of 10^120 or 10^46?
3
votes
1answer
56 views

As we come out of lockdown, how much FIDE rated chess was played in June 2020?

I asked a similar question about chess during lockdown. Now that some countries are coming out of lockdown and chess is resuming FIDE has published data for June. NB I looked at May data and as far as ...
0
votes
0answers
59 views

What is the theoretical maximal total of material for the insufficient material draw? [duplicate]

The insufficient mating material rule says that the game is immediately declared a draw if there is no way to end the game in checkmate. This usually happens in KB vs K or KN vs K endgames. However, ...
0
votes
2answers
154 views

How many unique pawn structures are possible?

In an effort to classify chess games, I thought it would be useful to identify a set of positions by their unique pawn structure that would form a family of positions. There are indeed many positions ...
2
votes
1answer
222 views

Seeking GM-level coverage of a typical pawn structure

I was wondering if there is a top level coverage of plans for Black in the below pawn structure: [fen "8/pp3ppp/2p2p2/8/3P4/8/PPP2PPP/8 w - - 0 1"] Or this one: [fen "8/pp3ppp/2p2p2/8/...
14
votes
2answers
3k views

Resignation when a draw is offered

In a recent online game, I offered a draw when the endgame is clearly drawing. To my surprise, instead of replying to my draw offer, my opponent resigned. I have no idea why they did so and my best ...
5
votes
2answers
602 views

Simplest plan to stop my queen from getting trapped

It's reasonably common for my opponents in blitz to fall into the following trap in the opening. [FEN ""] 1. e4 Nc6 2. d4 e5 3. d5 Nce7 4. f4 Ng6 5.f5 Qh4+ 6. g3 Qxe4+ 7. Qe2 Qxh1 8. Nf3 ...
5
votes
3answers
389 views

What is some basic advice for playing blitz or rapid?

A decade back i used to play chess, but just OTB and without time control. I now got back into chess and often play something like 15+10, where I very rarely lose on time and I am now rated ~1500 on ...
0
votes
0answers
29 views

Can you suggest some good free chess sites to learn about opening, finding checkmates, endgames etc for a beginner in chess? [duplicate]

I wanted to learn chess formally online and want your help finding good websites which teach chess.
0
votes
1answer
164 views

What percentage of the time does White win in the Lomonosov tablebase?

Studies show a slight advantage for White for having the first move. In the tablebase of trillions of 7-piece endgames, with White to move, how many of those endgames end up as wins, how many as ...
9
votes
4answers
2k views

Why is Qf3 better than Nf3

I am training with an app and have played about 10 games in my life, most years apart. However, now I became interested in the game. So, please be a little gentle. I have this situation: I was going ...
7
votes
1answer
423 views

Are aggressive attacking and tactical playeing the same?

What's the difference? Both look same to me.
0
votes
1answer
155 views

Checkmate without check beforehand

[Title "fucccommies-Diam0ndJake, chess.com, 7/8/2020"] [FEN ""] 1. e4 e5 2. Nf3 Nf6 3. d4 Nc6 4. d5 Nd4 5. c3 Nxf3+ 6. Qxf3 Be7 7. Bb5 O-O 8. O-O c6 9. dxc6 bxc6 10. Bc4 d5 11. ...
0
votes
0answers
21 views

Examples of Debunked Problems [duplicate]

Are there any problems that have solutions which have been debunked?
5
votes
1answer
116 views

What is the piece value heuristic in atomic chess?

In regular chess a queen is worth 9, rook 5, knight 3, etc. What is the equivalent heuristic in atomic chess?
7
votes
5answers
1k views

Why is Bd6 better than Be7, Bc5 and Bb4?

[FEN "r1bqkb1r/p4ppp/2p2n2/3p4/8/2N5/PPP1BPPP/R1BQK2R b KQkq - 1 9"] Be7 protects knight from getting pinned, Bc5 pins the pawn on f2 after Whites, castles, and Bb4 pins the knight. Whats ...
1
vote
1answer
100 views

Have there been computer-vs-computer chess games exceeding 493 moves?

From a FIDE Online Arena Facebook post (which appears copy/pasted from elsewhere), I'm interested in the part in bold: (Image of a chess board with two kings and no pawns nor pieces omitted.) This ...
2
votes
1answer
345 views

Wwhy was f5 played here?

[FEN "r1b1k2r/3pnpbp/pp2p1p1/2q3B1/3pPP2/1B1P4/PPP1N1PP/R2Q1RK1 b k - 0 1"] In this position, f5 was played. The reasoning is that Black's king is still in the center, so if White decides ...
17
votes
10answers
8k views

What projects have been undertaken to solve chess completely?

Chess is not completely solved yet but what efforts have been undertaken to solve it? Has there been a large project like the HGP or is something like that even worth pursuing? What failed efforts ...
3
votes
3answers
210 views

Did Leela Zero miss a win in this position?

Did Leela Zero miss a win in this position from game 106 of the Computer Chess Championship, on move 83 with White to move? [FEN "8/2p1r3/2P4k/1P1pB2p/K2NbP1R/P5r1/8/8 w - - 0 1"] Here, ...
3
votes
1answer
543 views

Did Stockfish blunder a drawn position against Leela here?

I don't see how you can defend both pawns at once if the bishop is located on the f8 square. Where did Stockfish go wrong in this game? [FEN "5B2/3k4/2p4p/4n1r1/8/2R5/6K1/8 w - - 0 1"]
5
votes
2answers
811 views

Is there any other notation system other than algebraic notation?

Other than the current coordinate notations used in chess, are there any other notations that anybody knows about? I am looking for anything that does not employ the coordinate system like naming all ...
7
votes
2answers
127 views

Why do some strong players play 5… Be4 in Caro Kann, Tal Variation?

[FEN ""] 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 { B12 Caro-Kann Defense: Advance Variation, Tal Variation } h6 5. g4 Be4 6. f3 Bh7 7. e6 Nf6 What is the point of the intermediate move 5...Be4 ...
9
votes
7answers
5k views

How good can I get just by playing?

On blitz 3|2 I am rated around 1000. I love playing the game and usually I play with players around my level. I try to play against slightly better players. Assuming I am not reading chess books or ...
4
votes
1answer
284 views

How much time it takes before searching for tactical themes becomes a subconscious process?

I would really like to have that ability.So how to achieve that?
7
votes
2answers
388 views

Are there any inherent problems with point-symmetric random chess?

The regular setup of chess is mirror-symmetric: If you mirror the positions of all figures on the equator of the board (between the fourth and fifth rank) and swap the colours, nothing changes. It is ...
3
votes
1answer
64 views

How to I apply moves (bitboard) and continue searching? My current attempt is throwing a strange error!

Explanation I have a list of all possible current moves in a position. At each node, I want to then generate all possible moves and continue. The problem is that my code is modifying the list of moves ...
7
votes
4answers
1k views

Queen placement in the Dragon

[FEN ""] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.f3 O-O 8.Bc4 e6 9.O-O a6 Here is a line from a game of mine. I made the movee 10. Qd3, but my computer program says Qd2 ...
6
votes
3answers
572 views

Is this endgame drawn after the rook sacrifice?

2R5/8/8/8/4Pp1P/3k1K2/2p2P2/1r6 w - - 0 46 In this position, the engine recommends 1. Rxc2 and evaluates the position as drawn. Is there a general rule in such positions or precise calculation is ...
3
votes
2answers
108 views

Compiling Stockfish to disable own castling while allowing opponent castling

For artistic purposes, I would like to create and study engine games in which only one side is able to castle. For this, I need to compile a version of Stockfish which never castles, and doesn't ...
7
votes
4answers
123 views

Knowing when to play Nc6 vs Nbd7 in the Najdorf Sicilian as black?

I've been studying the Najdorf Sicilian for some time, and I generally have a good idea of where to develop my pieces to. My light and dark square bishops typically end up on e6 and e7, respectively. ...
3
votes
1answer
161 views

How often do grandmasters fail to mate soon when mate in five or less is possible?

The recent question, How often do grandmasters miss checkmate? , turned out to be a bit broad. This question asks about a simple subset of that one, which I hope can be answered with some precision. ...
2
votes
3answers
82 views

Is this the position from TCEC Season 18, Game 80 a win or a draw?

This position from move 42 of TCEC Season 18 Game 80, with Black to move. Is it a win or a draw? [FEN "8/1k5p/1P3pp1/K1P2b2/5P1P/8/8/2B5 b - - 0 1"]
1
vote
0answers
15 views

Resource to Learn Chess Opening? [duplicate]

I am around 1300+ in Lichess With around 1100+ Games. I wanted to improve my Chess Openings Can anyone provide best resource to learn chess openings.
19
votes
4answers
5k views

How often do grandmasters miss checkmate?

Although top players are extremely good at finding checkmate, the number of permutations of moves in just 3 moves can be hundreds of thousands, and the farther out the possible mate (e.g. mate in 4, ...
5
votes
1answer
46 views

Hosting bughouse server for local competition?

I'm interested in running a local competition for bughouse engines. What chess server software can I use to run the games? The most relevant question I found was but the answer is almost 4 years old. ...
4
votes
1answer
79 views

Infinite sequence of consecutive checks allowing more pieces (say 9+ queens)

This is a task related to this question: Theoretical limit for the number of consecutive checks?. By a sequence of consecutive check, what we mean is white giving check, black replying with a check, ...
5
votes
4answers
654 views

Extract anonymized games out of a pgn

I'm a big fan of pgn-extract, but I am open to other linux-friendly tools. I have a big pgn file (over 5 million games) and a set of ECO codes. My goal is to fetch all the games matching those ECO ...
1
vote
0answers
79 views

Why don't chess sites offer best of X match formats? [closed]

I believe chess sites should offer best of 3/5/etc match formats, rather than a one-off game. Basically, if you enter such a game, you don't "win" by just winning 1 game, you have to be the ...
2
votes
2answers
101 views

How to decide whether to exchange (good/active) bishops?

I have read about exchanging bishops for knights and inactive for active bishops. I still don't know how to decide when both sides' bishops are seemingly equally active. For instance, I have read that ...
4
votes
4answers
133 views

How do you document your opening repertoire on a mac?

I have an opening repertoire which I play consistently. My problem, however, is that occasionally I will find holes in my repertoire: main line variations for which I have zero prep. I'd like to make ...

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