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3
votes
2answers
113 views

Alphazero vs Stockfish

Is the particular ending really a draw? Someone may try will FinalGen , please? [Title "White to move"] [fen "8/1B2k3/p7/P6p/1n1p2pP/6P1/4KP2/8 w - - 0 1"]
0
votes
0answers
53 views

Forced mate in 'n' from opening [duplicate]

Advanced chess engines can report a forced mate (for some given position) within a huge number of moves. For example, mate in 40 or 50 is not unheard of. Theoretically, is it possible that there ...
7
votes
1answer
472 views

How to play this endgame without consulting the tablebases

Recently I got this position in a game I played as Black with White to move. [FEN "8/8/8/R6p/4KP1P/6P1/pr6/1k6 w - - 0 1"] Here, White captured with the move 1.Rxa2. It turns out that 1... ...
1
vote
1answer
39 views

Which legal position has the smallest number of moves in a “forced loop”?

Consider this (illegal) position. [FEN "5n1k/3p1p1p/3PpPpP/4P1P1/1p1p4/pPpPp3/P1P1P3/K1N5 w - - 0 1"] If we do not consider the position's illegality, and the fact that it is clearly ...
3
votes
2answers
152 views

Rook+Knight Endgame-Play For Checkmate?

I found myself in this position as Black during a recent endgame situation with White to move. [FEN "8/7k/2R4p/2p3p1/2N2p2/P4PnP/1P2r1K1/8 w - - 4 43"] What is a good way to approach ...
1
vote
1answer
115 views

Why are my tactics ratings on chesstempo and puzzle rush different?

I just started chess.com puzzle rush today for the first time. My chesstempo blitz puzzle rating is 1567, but I can only get to 16-17 on puzzle rush, which is about 1000-1100. My mouse is bit slow, ...
2
votes
1answer
83 views

What is the idea behind this move?

I was watching Nepomniachtchi - Liren match on Chess24 Legends Day 2. After having a pretty significant advantage [+7.1 (Stockfish 11)], White [Nepo] has played g4, and according to the engine, the ...
1
vote
1answer
113 views

What is this position called?

I'm working on a problem for this cyber security camp, and we're doing a CTF right now. I have one problem left, and I'm almost certain in relates to chess, so I've come here for advice! Having ...
2
votes
1answer
78 views

Mac - Chess App

I was trying to play chess on the included chess app on mac, and after the computer's turn, it will not allow me to make any move at all, and I am 100% sure I am not in check as the game just started, ...
32
votes
1answer
4k views

Where can I find this game with a sacrifice followed by a long series of checks leading to a discovered mate?

I am looking for a chess game and frankly, I really know very little about it. I remember seeing it somewhere on the Internet. The game goes something like this. A player (either White or Black) ...
15
votes
2answers
3k views

What is the process for amending the rules of chess?

I read the whole document issued by FIDE containing the Laws of Chess, but nowhere does it say how (or even if) the rules of chess can be amended. Is every change to the rules supposed to yield a new ...
3
votes
0answers
40 views

Best move arrow in Scid vs PC

Is there a way to display the best move found by the engine on the main board? Lichess has arrows showing the best move (and even for the second, third, etc best lines). Is this possible in Scid vs PC?...
2
votes
1answer
54 views

Getting wrong results in perft stats with checks and mates

The perft count works well after testing with many positions from epd files from the web Now I want to see some perft stats like this one: https://www.chessprogramming.org/Perft_Results, from the ...
12
votes
3answers
2k views

Do grandmasters practice blindfold chess or does it come naturally with practice?

Since grandmasters are good at calculation, do they practice blindfold for improving calculations, or does it come naturally over time by solving a lot of complex calculations?
4
votes
2answers
92 views

How to calculate percentage of accuracy of game-play based on the number of mistakes, blunders and inaccuracies?

For some time now, chess.com analysis suggests the accuracy of the gameplay based on the blunders, mistakes and inaccuracies, one committed during his/her gameplay. Now, my question is, Whether there ...
3
votes
3answers
190 views

Can't a pawn capture onto the last rank to promote?

I do not play chess much. Recently a friend reached out to play some online games. We ran into an odd situation that I cannot find a rule on. His White pawn was at g2 and my Rook was still at h1. He ...
3
votes
4answers
163 views

How can I deal with frustration in not being able to solve puzzles in time?

I've been doing 1700-2000 puzzles for some days now. My problem is that when I cannot find a solution within 10 minutes, it literally kills me inside. I just get so frustrated and angry. Theh I just ...
2
votes
2answers
104 views

Games with consecutive en passants

Games with consecutive en passants, that is one side makes two en passats captures in a row, are few and far between to my knowlegde. I only know of one example thanks to Tim Krabbe. Kudrin vs R ...
6
votes
2answers
462 views

Relation between checkers and chess

After watching GM Vasyl Ivanchuk's victory against GM Baadur Jobava in checkers, I have a question in my mind: Is it possible to relate checkers with the tactical knowledge of chess? If so, how?
1
vote
2answers
63 views

Material score in analysis report

Is it possible to do an analysis using Scid vs PC or any other major chess program where it shows material score after each move in addition to showing the normal evaluation score? So for an endgame ...
1
vote
1answer
40 views

How can I move quickly in time? [duplicate]

I am a slow chess player. I have 3 digits rating in blitz. How I can play fast so that I do not loose on time ?
0
votes
3answers
143 views

Caro Kann opening

Is the Caro Kann Advance variation winning for White? In a game largely shown on a video , Stockfish 11 beat Komodo 14 with it. Since the prevailing consensus was that the move of Komodo Kh4?!was a ...
10
votes
4answers
4k views

Why is White considered so much better in this position?

I'm not sure I understand why Stockfish considers White so much better here. A look at the two strongest lines for White by Stockfish doesn't really give me much intuition about what White is playing ...
3
votes
5answers
231 views

How to master 1.e4 repertoire from scratch

I was a hardcore 1.c4 player. But, for quite some time, the popularity of Nakhmanson Gambit, Jerome Gambit etc. has encouraged me to experiment with 1.e4. I have read 1.e4 with backup plan before. Now ...
2
votes
1answer
78 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
134 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
61 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
48 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
212 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
72 views

Which engine is better at Chess960-Sttockfish 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. So, I was wondering since it is different in Chess960, ...
5
votes
2answers
979 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
55 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
153 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
601 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
384 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
162 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
147 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
20 views

Examples of Debunked Problems [duplicate]

Are there any problems that have solutions which have been debunked?
5
votes
1answer
109 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
98 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 ...

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