Questions tagged [calculation]

Calculation is the ability of a chess player to calculate variations in a given position.

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votes
3answers
777 views

Systematic ways to approach more difficult problems

As I’m done solving easy puzzles (1000–1500), I decided to try some 1700 puzzles, but I’m finding it very hard to solve them as there are no obvious checks, captures and threats. Also, most of the ...
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1answer
64 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 ...
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3answers
310 views

How many positions does a GM analyze before making a move?

From a research paper: Chess players search highly selectively. It is rare that they analyze more than one hundred positions in the search tree before choosing a move. In the middle game how many ...
2
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3answers
119 views

Method for precise calculation?

I'm tired of being stuck on a chesstempo rating 1530-1570 tactics in Blitz for like 5 days I'm "not" improving. Sometimes I take more than 2 minutes and sometimes I just move on quickly to the next ...
4
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2answers
103 views

Suggestions for blindfold exercises

I can know name the color of any square. Does anyone have suggestions for some other visualization exercises I can do to improve my blindfold chess?
11
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1answer
2k views

Why do GMs look up during calculations?

I saw some grandmasters looking up or sideways during calculations. Why don't they just look at the board and visualize? Wouldn't that be easier?
8
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1answer
334 views

Calculation skills beyond 2000 Elo

[Title "Black to move and win - rated 2179"] [FEN "2r2r1k/1pq3bp/p3p1p1/P4n2/1P1P4/2P1P2P/3BB1Q1/R3R1K1 b - - 0 1"] I've been trying to work on my chess a bit more seriously since about mid-March (I ...
2
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2answers
2k views

Sesse supercomputer

How many positions per second can the Sesse supercomputer analyze?
4
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2answers
189 views

The difficulty of finding the exact losing move

Are there examples of chess games where the exact losing move has been found only with the help of engines? Better still, games where the exact losing move cannot be found even by the best current ...
14
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3answers
4k views

Positional thinking by Grandmasters

How do Grandmasters think in an unknown position and make the best move?
3
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2answers
215 views

How many different knight's tours are there?

How many solutions does the Knight’s Tour puzzle have when the knight first moves from square a1, through all squares (on each square once), and return back to a1? Please give some solutions. Also, ...
10
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4answers
455 views

Lichess puzzle 87510: How much calculation would a strong player do before playing Bg4+ when white has a range of (all losing) responses?

Lichess puzzle 87510 has this position. [FEN "r1b1k3/pp4R1/2q3RQ/4p3/5P2/bP2P3/2P1K2P/8 b - - 0 1"] The solution is 1...Bg4+,.after which White has 6 legal moves: 1...Bg4+ 2. Rxg4 Qxh6, ...
3
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2answers
193 views

Finding a mating net in a RRN vs RRN endgame

This question relates to a game I played on LiChess (link), from which we have the following position: [FEN "8/2rn4/2pN2k1/r1Pp2p1/p2P4/3KPP2/R7/7R w - - 4 42"] In this position with white to move, ...
3
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3answers
419 views

Why does AlphaZero evaluate on the order of 1000 times less moves than Stockfish?

According to Deep mind's article, Alpha Zero searches roughly 10,000 moves per decision, while Stockfish is around 10,000,000 moves. I'm aware that Alpha Zero uses Monte Carlo Tree Search while ...
1
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2answers
139 views

Why do engines run faster if you only have one line of analysis open?

When I load up an engine (like Stockfish), it reaches a higher depth quicker if I only leave one line of analysis open. If I leave multiple lines open, it runs slower. Why is this?
5
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6answers
1k views

Calculation skills to 2000 and beyond

I'm rated about 1900 USCF and have been stuck between 1800-1900 for a few years not really knowing how to break through to 2000+. I have a good amount of positional understanding and solid foundation ...
5
votes
1answer
338 views

How are chess engines able to rank a Mate in X above a Mate in X+Y?

According to an engine, a mate in X moves = +infinity, since it is a forced win for it. Also according to an engine, a mate in X+Y moves = +infinity, since it's a forced win (just more moves, but an ...
5
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3answers
1k views

How can minimax chess engines do alpha-beta pruning without reaching the final positions?

In order to calculate far ahead, minimax chess engines must perform alpha-beta pruning, where they don't calculate positions that are obviously winning or obviously losing. Without doing pruning, ...
-1
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1answer
118 views

Would a player or computer with infinite proccessing time be unbeatable? [duplicate]

Forgive me if the answer is obvious, but I wondered about this for a while. In a game where one player can calculate all possible moves (whether the amount is more or less than atoms in universe or ...
4
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2answers
859 views

Calculation and visualisation exercises - do they work?

I would like input from actual experience of improving calculation and visualization: can anyone testify to achieving actual and significant improvement in ability to calculate and visualize as a ...
1
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3answers
179 views

Would this clock time mode be useful at all?

I want to encourage more games to be played with "thinking" chess instead of "video game" chess like in lightning and blitz. When I play at super fast time controls, I tend to stop calculating at all ...
5
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2answers
116 views

Endgames: How was “maximum moves required” determined before tablebases?

To use a simple example, tablebases show that KQ vs. K is won in at most ten moves. But chess books going back many decades, well before tablebases, say the same thing. How was this calculated?
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2answers
987 views

What are the best books on (A) General Theory, (B) Calculation Process/Improvement?

I will introduce my request by saying that up until fairly recently I was completely oblivious to chess despite practicing as a kid, I have a clear understanding of the FIDE rules but that's about it. ...
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6answers
8k views

How do players “see” several moves ahead?

How can you predict what your opponent will play in the next 5 turns, 7 turns, 10 turns? If the game is like a tree, then the more the turns the more it will branch out. How can a player accurately ...
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6answers
406 views

Chess Puzzles vs Laziness

Does solving chess puzzles help in overcoming laziness? I lost many games in a tournament because I am too lazy to calculate variations, e.g.: calculating 4-5 moves deep when defending to be sure that ...
4
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3answers
283 views

how do some players focus better by thinking on the first move?

I've seen some of my colleagues (2100-2200 Elo) who after shaking hands just think about 3-4 minutes on the first move, even though they know what they're going to play. When I asked one of them he ...
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6answers
8k views

Proven ways to improve calculation speed

I've been working on my tactics using on-line resources like Chess Tempo. I found my improvement (as measured by my CT rating) over the last few months to be encouraging, but I struggle to translate ...
6
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3answers
899 views

Need some helps with the tactics in the middle game

I sometimes find it very difficult to determine the accurate moves in middle game. When a tough opponent is in front of me I dont let to attack at first. I strengthen my defense. But if I ever try to ...
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3answers
1k views

How to fix 1 turn tactical errors

I am a very good attacking and tactical player. There is just one problem. While I catch combinations that might even require 5 or 6 moves, I cannot find 1 turn ones. Let's see this game I played ...
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5answers
1k views

Are modern chess programs tactically perfect?

In a given situation, can we assume that a chess engine is tactically perfect - meaning that it can find all possible tactics which are there in that position. Is it possible for the best of modern ...
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2answers
218 views

Is there a standardized chess test that can measure one's chess playing condition?

Chess players often say that in a given tournament they were "in good shape", or the opposite. One tournament goes well, another goes horribly wrong. One can also sometimes feel that your head is ...
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5answers
8k views

Does depth (number of ply) still matter once it is high enough?

This isn't real, just imagine this happening. Computer A is supercomputer. It can calculate 30 ply deep within 20 seconds. Computer B is supercomputer. It can calculate 15 ply deep within 20 seconds....
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12answers
4k views

Is there a single best move in every position?

If it were possible to analyse every possible outcome of a position, would there ever be a single move that could be considered "best"? I know that this is how computers evaluate positions, but they ...
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5answers
22k views

How do chess engines “think”?

What I want to know is how engines are programmed to find moves. I'm sure they first calculate the most forcing lines such as captures and checks. But what about subtle, deep positional moves? They ...
11
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2answers
893 views

Sharp pawn endgame - can it be calculated to the end? With Computer engine?

White to move, here is a brief summary of my analysis where I attempted to determine exact evaluation. Number of pawns is equal but White's 2 pawns on the queenside are held by one Black's pawn, so in ...
18
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5answers
18k views

How many moves ahead does Anand calculate in his mind?

I always wondered about this! How many moves ahead can strong players like Anand actually 'see' during the game? How does the calculation of a supercomputer like Deep Blue differ from that of strong ...
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9answers
7k views

Best ways for improving “tactics”

I have been playing chess for a long time, and I have been around 1850-1900 ELO for quite some time. I have always wondered which are the best ways to improve the tactics. Does playing more and more ...
10
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4answers
2k views

What are techniques to improve the number of moves thought through in advance?

I read somewhere that on average a GM can think up to 10-15 moves ahead in tactical positions. Is there any specific technique to improve this depth? Please do not provide a generic answer on how ...