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2
votes
0answers
24 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/...
1
vote
1answer
49 views

Why isn’t Black forced to prevent e4 in this Queen’s Indian Game?

Today, I played this game in which I played the Queen’s Indian Defense. This position was reached: I played Be7, which is a correct move. I wonder however, why Black isn’t forced to play Bb7 in ...
2
votes
1answer
29 views

Compile StockFish optimized for arm64-v8a

I cloned StockFish from GitHub and did a make inside the src folder and found that supported archs are: x86-64-bmi2 > x86 64-bit with pext support (also enables SSE4) x86-64-modern ...
9
votes
1answer
3k views

Who did Kasparov call a talented amateur?

I heard that Kasparov called some strong player a talented amateur? Who was that? Thanks.
4
votes
2answers
113 views

How do you deal with you losing your concentration

How do you do deal, with losing your concentration during a chess match? Then making a bad blunder? I constantly lose concentration.
8
votes
3answers
2k views

Do the points still count?

Let's say my queen is taken by my opponent, scoring 9 points. If I get my pawn to the other end and exchange it for a queen, do they lose those points?
1
vote
2answers
62 views

How to install chess.pgn on python?

I don't know how to import chess.pgn on Python. I searched everywhere, but I didn't find anything. Can anybody here help me?
3
votes
3answers
124 views

About castling “fights”

Today I played as White in an interesting bullet game in which a strange “fight” occurred. [FEN ""] 1. d4 e6 2. Nf3 b6 3. e4 Bb7 4. Bd3 g6 5. Be3 Bg7 6. Nc3 Qe7 7. Qd2 Nc6 8. a3 a5 9. h3 h5 10. Qe2 ...
3
votes
2answers
93 views

Angle of view of the board

I noticed that when I play online I play much better than when I play facing a chess board. I suspect this is due to my table being tall so my angle of view isn't the best one. So I was wondering if ...
2
votes
2answers
114 views

Is my positional pawn sacrifice justified?

Today I have played a game and the following position was reached: [fen "rn1qk2r/p4ppp/1p2bb2/1Q1pp3/8/3P2P1/PP2PPBP/RN2K1NR b - - 0 1"] 1... Nd7 2. Bxd5 a6 3. Qb3 Nc5 4. Bc6+ Ke7 5.Qa3 Rc8 6. Bg2 ...
10
votes
1answer
258 views

How are online tactic exercises ratings calculated?

There are several sites that give you a tactics rating changing while you solve or fail the exercises. How do they calculate the problems rating? Do they use engines to calculate the difficulty or ...
3
votes
1answer
73 views

Minimax check(mate) detection

in my minimax function I have a first few lines looking something like this: children = board.get_all_possible_moves(board) if depth = 0 or board.is_check_mate or board.is_draw: return None, ...
14
votes
3answers
2k views

Why is 1. Nf3 not nearly as popular as 1.e4 and 1.d4?

The opening move 1. Nf3 is considered as a perfectly sound opening and it is popular, but not nearly as popular as 1.e4 and 1.d4. Here are my thoughts about this: In most openings, white will make ...
21
votes
3answers
2k views

What is black’s compensation in the main line of the Caro Kann?

After move 10 in the main line of Caro Kann, black has already moved its light-squared bishop four times, while white manages to develop quite a bit. What exactly is blacks compensation for the lack ...
10
votes
2answers
3k views

Is it bad form to go for a lengthy but losing endgame that you suspect will be winning on time? [duplicate]

In blitz games, I sometimes have to choose between sharper positions that I suspect will put me at some slight positional advantage and positions easily played by my side but difficult for my opponent ...
3
votes
1answer
51 views

Equation for Handicap

Are there any sort of equations for how much of a handicap one should receive to make a game between two players with differing Elo ratings as balanced as possible? There might be a time equation to ...
4
votes
1answer
201 views

Tactics in Firouzja's game round 3

In round 3, Firouzja and Artemiev played a very interesting Caro-Kann game, with white constantly trying to open up the position even at the cost of pawns, in order to exploit black's exposed king ...
30
votes
11answers
9k views

What should I do when I have no ideas and no strategies?

I'm really a beginner in chess, and I just know the rules. So many times in the game I have no idea what should I do. None of my pieces are in danger and I don't have any strategies. What should I do ...
7
votes
2answers
193 views

Firouzja vs Kovalev: what went wrong for black in the opening?

In the first round of the ongoing Wijk aan zee Masters tournament, Firouzja won vs Kovalev. Apparently, right out of the opening white had gained a winning edge. In particular, somewhere around 16......
5
votes
1answer
162 views

During the 1984-1985 Karpov-Kasparov match, what was Karpov's initial weight?

When discussing whether chess is a sport, I have often used that Karpov lost a reported 22 pounds (10 kg.) during the match as a point to show that chess can be physical. While 22 pounds is ...
5
votes
3answers
2k views

Elo rating and fide rating

I am an amatuer chess player and I want to know the difference between Elo rating and FIDE rating (for example, a 2500 Elo rating is needed for GM title).
2
votes
2answers
1k views

Failing to understand how to start Popeye

I am trying to run the chess solving program Popeye, but I am currently failing on how to actually start the program. I am using Windows for this. There is an English guide, and, as I far as I can ...
4
votes
1answer
160 views

Advice for breaking Lichess's 2000 rating mark

Although I have known the rules of chess since I was little, I only actually started playing it in May or June 2019, so about 6 or 7 months ago. When I started I had a Lichess classical rating of ...
10
votes
3answers
654 views

Books on opening theory organized around tactical/strategic motives, not opening lines

"Understand your openings, not just memorize lines" is a common advice given to a club level player. However, most opening books are still organized around lines, amended with some explanations that ...
26
votes
3answers
2k views

Understanding Anand's Bc4 move vs Ivanchuk 1992

In the Ivanchuk vs Anand game (1992), the game leads into an endgame after lots of exchanges, which by no means looks (to me at least) winning for black: they both have 2 rooks, 2 bishops, and black ...
2
votes
0answers
96 views

What are some of the best chess opening moves, for white and black? [closed]

I am wondering the best opening moves are for both white and black, because I have won games with the pawn move 1. d2-d4.
5
votes
2answers
378 views

Stockfish 10 working on only 1 core at a time

I am a lichess user who would like to be able to use my 8C/16T processor to the best of my ability, and yet when I start up a chess engine only one of my cores is working on stockfish the rest are ...
7
votes
2answers
161 views

I am 1400, how do I improve my positional play? [duplicate]

My lichess puzzle rating (tactics) is around 2100, while my game rating is only around 1400, so I'm pretty sure that means my positional play is utterly trash. There aren't any positional puzzles out ...
25
votes
2answers
5k views

Why wasn’t Rashid Nezhmetdinov a Grandmaster?

He won the Russian championship 5 times, so why wasn’t he a GM?
2
votes
1answer
87 views

Debugging my chess engine through the Arena GUI

I coded (with visual studio 2019 on windows 10) an ultra naive chess engine that complies with UCI engine interface rules. Before starting to develop it in more fancy ways, I want to make sure that I ...
5
votes
1answer
2k views

Was this a valid draw?

I was playing this game in-person with someone and I was white. My opponent had a pawn on a7 and kept moving his king back and forth between c6 and d6 at least 3-4 times while I maneuvered my bishop ...
1
vote
1answer
35 views

Where can I see all my friends on lichess?

I'm not sure if it's called friends or just users I am following. When I press on my profile there's a section which allows me to see the users that are following me but I'm looking for the one's I'm ...
16
votes
4answers
4k views

How to improve from ~1200?

I am not new to the game of Chess. I have been (casually) playing it for over a decade, and I would like to get better at it. I know the basic rules of the game very well, I understand basic tactics ...
2
votes
1answer
45 views

SCID vs ChessBase - play, analyse, visualization - ubuntu

Please help me or give me the correct terms to find it out. What I want is: Play chess against an engine or repeat an existing game For my current move, I want an analyser to analyse my move, and a ...
3
votes
1answer
76 views

How long does it take for Elo rating to reflect changes in player's strength?

Suppose a player with ELO rating X has improved (for simplicity, without playing in tournaments) and she is now actually playing at the level X+N. How many games will it typically take for her rating ...
4
votes
1answer
45 views

Is there a way on lichess to see the Correspondence chess rankings?

Lichess has leaderboards for every variant of chess and also every single time control of the standard variant except for Correspondence chess. Does anybody know where to see the leaderboard for ...
4
votes
2answers
109 views

Minimax with alpha-beta pruning for chess

I am creating a chess AI using the minimax method with alpha-beta pruning. I am trying to understand how the alpha-beta pruning works, but I can't get my head around it when it comes to chess where ...
6
votes
4answers
1k views

D5 move closing my bishop activity

I would like to know why playing d5 in these two positions is useful for me (Black).
2
votes
3answers
92 views

What to put in a personal chess database?

I was thinking about creating a personalized chess database for my correspondence chess play. What sorts of contents are useful to put in it and is there any big difference in having your own database ...
4
votes
1answer
69 views

How to count pieces from PGN notation?

I am trying to figure out an algorithm to extract the number of each piece that both black and white have from a PGN file. Right now I have all of the moves tokenized(i.e. c("e4", "d6", "Nc3", "f5", ...
2
votes
2answers
53 views

Old versions of FIDE laws of chess? [duplicate]

Is it possible to view or obtain old versions of the FIDE Laws of Chess? I would like to trace the history of when various rules were added or modified. The FIDE handbook only goes back as far as ...
2
votes
3answers
117 views

What is the highest value of pieces on this particular 6x6 board, without any of them attacking each other?

I got a question in school in which I have to get the highest score possible by adding pieces on a 6x6 board like this: The rules are that they are the same color and may never attack each other, and ...
4
votes
3answers
254 views

To what extent is the openness/closedness of positions determined by white? By black?

Say I am playing as white and I strongly prefer closed positions while my opponent strongly prefers open positions. To what extent do I have control over this? Will the game more likely end with a ...
6
votes
3answers
2k views

What is the opening value of 1. e4 in 2020?

Bobby Fischer: e4 -- best by test. What is the current theory or trend in theory behind this statement? We have seen huge strides taken in chess AI in the past two years. How is this affecting ...
5
votes
2answers
145 views

What level of player is Kasparov's MasterClass suited for?

I am about 1400. I was wondering if I should pay for Kasparov's MasterClass, but I am not sure if it is worth the money. Has anyone bought this?
6
votes
2answers
694 views

Does anything actually use numeric annotation glyphs (NAGs)?

Numeric Annotation Glyphs, or NAGs for short, are tokens defined by the PGN standard to allow concise annotation of moves. They consist of a dollar sign ($) followed by a number, e.g. $1 means "good ...
2
votes
4answers
1k views

What does black achieve with 1.d4 c6?

I have faced 1...c6 as a reply to my 1.d4 quite a few times recently, and this makes me wonder why people play this as oppose to 1...d5. In addition to playing the Slav with 2.c4, I have an option of ...
3
votes
1answer
88 views

DroidFish's rtb folder's file placed somewhere else

DroidFish has an rtb folder that should be used for wdl and dtz syzygy endgame tables. For the six pieces tables it represents roughly 80+60Gb and as I my phone has only 64Gb as internal memory, I ...
19
votes
11answers
7k views

Why does a knight combine better with the queen than a bishop does?

From this question, the couple queen + knight is strong in attacking the opponent's king. I searched why the knight combines better than the bishop with a queen, and all I could find, from this ...
11
votes
3answers
712 views

Why is this the solution to this puzzle?

[FEN "2r3k1/5pp1/1q1bpn1p/pB1pN3/P2P4/5R2/1P3PPP/3Q2K1 w - - 0 1"] 1. Rxf6 Qc7 2. Rf3 This is a puzzle (and its solution) I found on lichess. But I simply do not see the expected logic of this ...

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