14
votes
Accepted
Does 'dead position' consider the 75 moves rule?
In section 3.10.1, the laws define what legal moves are:
3.10.1 A move is legal when all the relevant requirements of Articles 3.1 – 3.9 have been fulfilled.
The mentioned sections 3.1 to 3.9 only ...
- 156
12
votes
Accepted
Why does stockfish give "-28.8" as the evaluation number for this position?
Computer programs are great at performing the specific tasks they've been designed for and useless for anything else. Chess engines are no different. It's just not worth it to design an engine so that ...
- 16.3k
11
votes
Accepted
Can Loss by Checkmate be Avoided by Invoking the 50-Move Rule Immediately After the 100th Half-Move?
Can player B invoke 9.3.2 to avoid the loss by checkmate?
No.
A player can only invoke the 50 move rule if the game is still being played. Checkmate ends the game. Once the checkmate is on the board ...
- 94.5k
8
votes
Accepted
Why didn't Laurent Fressinet-Alexandra Kosteniuk (2007) end in a draw?
The 75 move rule was introduced in the 2014 version of the Laws of Chess. The previous version of the rules has no mention of it. Since this game is from 2007, it obviously wouldn't have used a 2014 ...
- 18.4k
8
votes
Accepted
Is it ethical to take a draw in a winning position, if a draw is good enough?
1. Is opponent's draw offer unethical?
Offering a draw in positions that are much worse is frequently regarded as bad etiquette.
However, bad etiquette does not always equate to unethical behaviour.
...
- 5,975
7
votes
Why doesn't Stockfish announce when it solved a position as a book draw similar to how it announces a forced mate?
Unless the Stockfish creators have documented this question, any answer will basically be based on speculation, more or less well-founded.
It should (theoretically) be possible to separate an ...
- 936
6
votes
Why is a win better than 2 draws in the tiebreaks
The criteria used for tiebreaks is indicated prior to the tournament and figures in the tournament's reglementation that is supposed to be available to all participants.
There are many systems used ...
- 15.8k
4
votes
Does 'dead position' consider the 75 moves rule?
My feeling is that it should consider the 75 move rule. The current wording strictly speaking doesn't say that, as benediktwerner's answer explains (considering it only mentions "legal moves"...
- 27.7k
4
votes
Does 'dead position' consider the 75 moves rule?
First, there are positions where white can force a mate but with perfect defense by black it takes more than 75 moves to do (Ant referenced this reddit post) and that do not involve captures or pawn ...
- 255
4
votes
Why does stockfish give "-28.8" as the evaluation number for this position?
Chess engines are made for regular chess playing not for solving unexpected chess problems that have no very little relevance to chess strength. In fact, an engine that is able to understand an ...
- 22.4k
4
votes
Why doesn't Stockfish announce when it solved a position as a book draw similar to how it announces a forced mate?
Why doesn't Stockfish announce when it solved a position as a book draw similar to how it announces a forced mate?
Very simple. Checkmate ends the game. Once checkmate has been delivered there are no ...
- 94.5k
4
votes
Accepted
How is this a draw?
Three-fold repetition. The position facing Black for their 61st, 63rd, and 65th moves was exactly the same.
- 156
3
votes
Can Rook pawn still get win when opponent clock run out?
Yes. The player whose opponent's time ran out wins if there exists a way to win. A draw only happens, when White couldn't even win with help from his opponent, e.g. when there is insufficient material....
- 5,975
3
votes
Accepted
How can I draw this KPPP-KR endgame?
The underlying principle is that two connected passed pawns on the 6th rank are worth a rook (provided the opponent's king and rook are not too close). So, your aim is to to try and get close to that.
...
- 94.5k
3
votes
How would this position be scored if you ran out of time here?
You already answered it yourself - yes, there are §§§ relating to this. Let's check the rule book:
§6.9 Except where one of Articles 5.1.1, 5.1.2, 5.2.1, 5.2.2, 5.2.3 applies, if a player does not ...
- 15.4k
2
votes
How is this game a draw?
Black is stalemated. There is no legal move. The Queen takes out the c file, the Rook takes out the e file, the Pawn blocks d4, and the Queen covers d2. None of the Black Pawns can move. The Black ...
- 684
2
votes
Can Loss by Checkmate be Avoided by Invoking the 50-Move Rule Immediately After the 100th Half-Move?
I’ve grappled with this point before, trying to understand how the FIDE Laws (which are the basis of chess problems) should work.
Essentially the Laws might have been split cleanly into rules of play ...
- 11k
2
votes
Timeout vs Insufficient Material
Chess.com specifically uses these rules for a dead position:
Here are the piece combinations that lead to a draw by insufficient
material:
King vs. king
King and bishop vs. king
King and knight vs. ...
- 5,096
1
vote
Timeout vs Insufficient Material
What will happen if I just let my time ran out? Will the system give a draw as black has only one knight and the system will consider it as "insufficient material" even though there is a ...
- 94.5k
1
vote
Does 'dead position' consider the 75 moves rule?
Over the board, I think these FIDE rules must combine. If the count is at 73.0 since the last zeroing, and there's no checkmate, capture or pawn move possible in the next 2.0 moves, then the game is ...
- 11k
1
vote
Is Stockfish reliable as far as draw conclusions is concerned?
These bases are TeraBytes, which makes them pretty unusable for most people
I suspect you don't completely understand how these tablebases are used.
According to the Syzygy webpage, a total of 939 MB ...
- 94.5k
1
vote
Why didn't Laurent Fressinet-Alexandra Kosteniuk (2007) end in a draw?
As the other poster already noted, the 75 moves rule did not exist at that time. So the 50 moves rule applied. From Wikipedia:
A game is not automatically declared a draw under the fifty-move rule;
...
- 1,005
1
vote
What's the rationale behind chess engines conditionally allowing threefold repetitions when assigning a draw score?
Looking at some of the forum discussions at the end of the linked chessprogramming.org page, you can see some of the rationale for waiting for the third repetition to consider a position drawn if the ...
- 645
Only top scored, non community-wiki answers of a minimum length are eligible