All Questions

2
votes
1answer
287 views

Searching for a “where is the black king” puzzle?

Sometimes ago, a friend showed me a position where he had the black king removed. The goal was to find where is the black king using some pretty weird reasoning. I tried to remember the puzzle but I ...
1
vote
3answers
200 views

How does one know if a position is not reachable from a series of legal moves from the starting position?

If one of the following is true, a position is not reachable from the starting position by a series of legal moves: One side has two or more kings or one side has no kings; One side has a total of ...
1
vote
1answer
143 views

Sicilian Najdorf 6. Bg5 Nbd7 line

[fen ""] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 1) Why 6... Nbd7 is not played by many players? Why they prefer 6... e6 only? I could not get the answer for this. Requesting ...
2
votes
2answers
165 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, ...
17
votes
5answers
3k views

What is the theoretical maximal material difference of a dead draw which is not a stalemate?

I have noticed the following example, which should be a dead draw: I am wondering what is the theoretical material difference of a dead draw which is not a stalemate? (I am not asking about agreed ...
3
votes
1answer
68 views

CLI tool to let chess engines play each other [duplicate]

I'm looking for a command-line tool to let two chess engines play a game or a tournament against each other. The tool should support UCI and/or the xboard protocol and it should allow to save the game ...
1
vote
1answer
57 views

Websites for creating tournaments with different starting positions

I'd like to create tournament for my students where I specify the starting positions. Which websites allows users to create tournaments with different starting positions?
0
votes
1answer
89 views

Position with the largest material imbalance that is a draw, no matter whose turn it is?

I am curious if there is a known position with the largest material imbalance that, no matter who it is to move, the weaker side can hold a draw.
-2
votes
1answer
135 views

Why bother with human chess when AI is superior? [closed]

Before I get to my question couple things to get out of the way: This question is a sensitive subject. But I assure you that I'm not a troll, I have deep respect for your community. It is my first ...
9
votes
3answers
3k views

Why are Leela's fans so passionate? [closed]

The neural-network engine Leela is a relatively new one. It's also got some extremely passionate fans. For example they write things like this: Wait 5-6 months, and we will see SF8 on uber-duper ...
3
votes
2answers
269 views

AlphaZero and the revenge of the Artificial Intelligence

Answering this question, @SmallChess offered this answer: Before Google's chess journey, the chess engine community believed: AI chess will not beat classical programming because neural networks ...
1
vote
0answers
36 views

Daily chess self-training plan? [duplicate]

Here I am asking suggestions on plans to systematically improve one's chess skills. I am aware of questions such as this one, but I am seeking advice based on the following criteria: I am willing to ...
1
vote
0answers
49 views

Are there starting positions in dobutsu shogi that are farther from a win/loss than the standard one?

In dobutsu shogi, the usual starting position is a loss for the beginning player in (at most) 78 turns (from first move until (and including) lion capture or ascension). But are there perhaps other (...
0
votes
1answer
74 views

What is the value of most starting positions in dobutsu shogi?

In dobutsu shogi, the usual starting position is a trébuchet or full-point mutual zugzwang position, but other likely (starting) positions can have a completely different value. If we arrange the ...
-1
votes
2answers
67 views

Knight moves which way? [duplicate]

Does the knight move two steps forward and then to left or right or does it move one step forward and then diagonally to left or right? I was taught move one square then to right or left My partner ...
15
votes
5answers
2k views

In terms of rating points, how much stronger should a coach be than their student?

I'm considering getting a chess coach with the general goal of reaching the WIM title (2200 rating, plus norms; or get lucky in an Oceania Zonal). I'm not sure how realistic this is. However, almost ...
6
votes
1answer
216 views

Have engines refuted any established openings?

Before engines were introduced to chess in late 20th centry, there were many established openings that were played by the top players at that time. I am wondering if any of those openings were refuted ...
5
votes
2answers
153 views

“A better move” recommended by chess.com but almost never played?

I played a game starting with d4 d5 2. c4 dxc4 3. Nc3 a6 4. a4 Nc6 5. Nf3 Black's next move is 5... Bg4 and it was considered by chess.com as Inaccuracy (-0.28) A better move was 5... e5 (5... e5 ...
0
votes
1answer
296 views

Why can't I use my stockfish engine with python chess? [closed]

I'm using python chess and I'm trying to use my stockfish 10 engine downloaded from the stockfish website. import chess.uci engine = chess.uci.popen_engine(r"stockfish-10-linux/Linux/...
4
votes
2answers
253 views

How bad is the Elephant Gambit?

I tend to think the Elephant Gambit is dubious, but what is the best path to a White advantage? [fen ""] 1.e4 e5 2.Nf3 d5 Update: RemcoGerlich's comment of an upcoming book is quite relevant! ...
0
votes
1answer
89 views

Can one win with two dark square bishops and two light square bishops and his opponent has only one queen?

Can one win with two dark square bishops and two light square bishops and his opponent has only one queen? I remember seeing this endgame being analyzed in a video around 10 years ago (and I think ...
5
votes
3answers
147 views

LiChess puzzle 82753: can white win with a queen and two pawns vs. rook and four pawns?

LiChess puzzle 82753 involves a rook and pawn endgame where white sacrifices their rook to queen a pawn. The final position is the following (with black to move): [FEN "2Q5/6p1/1K3pkp/8/8/4p3/r5PP/8 ...
3
votes
3answers
199 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
vote
4answers
154 views

Can GMs use computers to beat their opponents?

For example, suppose it's game 12 of the Carlsen-Caruana match last year. Caruana has white, and he wants to win before the tiebreaks. Now if instead of Caruana playing white, Stockfish were playing, ...
5
votes
1answer
82 views

what is the shortest allowable time control for a FIDE rated standard tournament game?

My chess club wants to host a FIDE tournament in a couple of months with 3 FIDE rated games in one day. What is the shortest allowed time control for FIDE rated standard tournament games so we can ...
0
votes
2answers
82 views

Establish Rating System for My Community

I want to establish a rating system for my community. I've decided to publish the rating every 1st January, April, July and October. Every new player will be given a rating of 1200. Using result ...
0
votes
1answer
162 views

Most drawish and least drawish opening?

Based on statistics (drawing percentage), which opening is the most drawish and which one is the least drawish? I am aware of questions such as this one, but my question is different. Criteria: ...
7
votes
1answer
111 views

AlphaZero’s search procedure

I am aware of related questions and great answers on the same topic such as Understanding AlphaZero. My questions are related to the following figure on AlphaZero's search procedure This figure ...
2
votes
2answers
152 views

Why is this gambit also known as the Maltese Falcon Gambit?

Why is the Gibbins-Wiedehagen Gambit (1.d4 Nf6 2.g4) also known as the Maltese Falcon Attack (or Gambit)? Is there any specific reason for that?
3
votes
2answers
162 views

What is one quick way to reach a mutual, symmetrical stalemate position?

I’m just wondering what one quick way, not the fastest, is reach a position where both sides have worked together to create a mutual stalemate here neither side could move on their turn, and the ...
3
votes
1answer
148 views

Can a tournament director nullify a game in progress?

Recently I was at a USCF tournament. Six moves into my first round game, the tournament director came to my board and had me stop my clock. It turned out that the person across from me had the wrong ...
2
votes
1answer
92 views

What plan should white play with?

It's black's turn. What plan should white use so as to confirm it's win? Thanks! [fen "r1b5/ppkn3R/3p2p1/8/N2b1B2/8/P1P2PPP/5RK1 w - - 0 50"]
2
votes
2answers
199 views

Can we say for sure Black's King has not moved?

The following position appears as the 7th puzzle of Raymond Smullyan's Arabian Knights, a book of retrograde analysis: [fen "3qk2r/p2pp1bp/bpp2n2/8/3N3Q/1PN1P1P1/P1PPP2P/3K1n2 w - - 0 50"] The ...
-4
votes
2answers
113 views

The computer said a game was drawn but I think it is won for me [duplicate]

It's white's move and the king can't move. Why was this game drawn? I should have won it I think.
3
votes
1answer
100 views

At what handicap are humans as good as computer?

It is well known that the best chess engines are now far stronger players than the strongest human players. But is it known what the smallest handicap is that makes them roughly equal?
5
votes
1answer
171 views

Can a win be claimed on the second illegal move if the first wasn't raised?

First of all, I don't think this is a duplicate of what happens on the first illegal move in a game. This is what happens after the second if the first is unclaimed. The setting is a tournament under ...
2
votes
4answers
137 views

Weird early f4 suggested by engine (English Opening: Reversed Sicilian)

I have played a game recently and at move 7 the engine suggested f4 as best continuation, but I failed to understand why. When I see the move, all I see is a super weakening move, especially with a ...
4
votes
1answer
72 views

To earn a direct title for coming first in an official FIDE tournament, do we include players who already have that title?

I'm intending to play in the Oceania Zonal tournament (brochure) and direct titles will be awarded in this tournament. I'm interested in the WIM title. The FIDE handbook says in regards to the WIM ...
3
votes
1answer
172 views

Is the queens gambit declined getting more popular than the slav?

Back when I used to study chess, like 10 years ago or so, all the text books and all the super GMs recommended either the slav or the semi slav against queens gambit, they said it's better than the ...
1
vote
1answer
137 views

What do advocates of the QGD exchange variation (from the white side) recommend against alternative move orders?

I've recently started to become interested in the exchange Queen's Gambit Declined (QGD) from the white side: [fen ""] 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Thematically speaking it's very ...
0
votes
2answers
60 views

What's the benefit of using books during correspondence games?

I'm playing daily games on chess.com and read that it's officially allowed to use books or databases during the game. My question is: How does it help me getting better (if it's the purpose of this ...
2
votes
2answers
119 views

Is there any software that will analyse games offline?

Usually I use Lichess to analyse games, but sometimes I am offline. Is there any software with the capability of providing offline computer analysis, giving the rate of inaccuracies/mistakes/blunders ...
5
votes
1answer
176 views

What is the longest professional chess game that ended in a checkmate?

The question pretty much sums up what I want to know. There is nothing else to add here.
0
votes
1answer
32 views

Importing and analysing games played on chess.com [closed]

How to import entire game from chess.com game to stockfish?
1
vote
1answer
72 views

Magnus vs Tomashevsky Blitz 2012 - why doesn't he take the knight on e7

I'm not sure if anyone is familiar with this game, I watched it a while ago and had just rewatched it now and cannot understand why Magnus didn't take the knight on e7. Here's the screenshot before ...
1
vote
2answers
102 views

How many possible two-move checkmates are there?

Yes, I am well aware that Fool's Mate exists. But how many other possible two move checkmates exist in chess?
0
votes
2answers
69 views

Regarding Chessbase softwares

I have bought Houdini 6 pro ( chessbase version ), for the primary purpose of practising by playing games against Houdini 6 pro (and other engines I own) I cannot figure out how to play a game against ...
5
votes
2answers
128 views

Why 7. Bd3 in the 3 knights opening?

In this line of the 3 knights opening [fen "start"] 1. e4 e5 Nf3 Nc6 Nc3 Bc5 Nxe5 Nxe5 d4 Bd6 dxe5 Bxe5 the best continuation according both to my engines and to databases is 7. Bd3. Why? For ...
1
vote
1answer
88 views

How good is this variant of the Sicilian defense?

I am relatively new to chess SE, so I am not sure how to include the chessboard thing. [FEN ""] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Bc4?! Nxe4 6. Bxf7+ Kxf7 7. Qh5+ ... 8. Qd5+ and ...
6
votes
1answer
578 views

Draw offer without executing move

Scenario: It's Player A's move, and without executing a move he offers a draw. Player B replies "Please make a move". Player A then makes a move, where upon player B says: "Ok, I accept". Is it now ...

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