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Questions tagged [50-move-rule]

Questions about the fifty-move rule

27
votes
1answer
9k views

Why is there a 50-move rule and a 75-move rule?

By number theory, if the 75-move rule has been reached, the 50-move rule will also be reached. This has no meaning. It is like saying "I would buy this book if it cost under $60 and it costs under $40"...
8
votes
3answers
253 views

Why does not castling reset 50 moves rule?

Capturing a piece or moving a pawn irreversibly changes the state of the game and thus resets the counter for 50 Moves Rule. Since castling and first rook move irreversible changes state of the game ...
5
votes
1answer
239 views

50-move rule: FIDE wording seems weird

FIDE rules seem to say that I have to claim draw (3-repetition and 50-move) before I actually touch/move my piece. And if I move my piece first, and then claim the draw, it doesn't count. 1) Is this ...
8
votes
1answer
691 views

What is the order of actions in chess under FIDE rules?

Reading some recent posts about the 50 move rule made me realize that I've never seen an explicit order of actions for chess. By way of comparison, the order of actions in Monopoly is given here: (1) ...
2
votes
1answer
107 views

Claiming a 50-move draw with a mating move [duplicate]

Under FIDE law 9.3.1, a player to move may claim a 50-move draw by writing down the intended 50th move and making the claim. Supposing this claim is otherwise valid; if the move would checkmate then ...
4
votes
3answers
400 views

Simltaneous checkmate and draw claim on the 50th move [duplicate]

This question is for aspiring rules lawyers. The FIDE's new laws of chess, effective Jan. 1, 2018, patch ambiguities and other subtle problems. I like the new laws. When it comes to game mechanics, I ...
-1
votes
3answers
515 views

What is the source of the house-rule 18-moves?

In my area, most kids including me grew up with a very popular house-rule: After all the pieces of either of the players are removed besides the king, the opposing player has 18 moves to checkmate him....
5
votes
3answers
524 views

Does checkmate over ride 50 move violation?

If a move creates the 50 move violation and at the same time creates checkmate, does the checkmate take priority over the draw ?
3
votes
1answer
539 views

The 50 Move Rule

Can the fifty move counter be increased after white's move? I thought that it could only be increased if both white and then black had not moved a pawn nor captured a piece that qualified for a whole ...
7
votes
3answers
845 views

Proof of irreversibility of 50 move rule

I recently edited the Wikipedia article 50 Move Rule as follows: The rationale for this rule is that pawn moves and captures are the only '''irreversible''' types of moves. That is, after ...
3
votes
2answers
896 views

What are the hardest pawnless endgames that go over the 50-move rule?

I know two pawnless endgames that go over the 50-move rule. King and 2 Bishops vs. King and Knight = 70 moves average. King, Rook and Bishop vs. King and 2 Knights = 200 move average. What others ...
6
votes
1answer
533 views

Has the 50 move rule been used in serious games?

There are a lot of questions about the 50-move rule; details on how to claim the draw, why the number 50, etc... But the most interesting question seems to be whether the rule has ever been applied ...
12
votes
4answers
208k views

With only a king left, how many moves remaining until a draw?

I am a beginner in chess. If I have only a king left, how many moves does my opponent have to mate me?
17
votes
1answer
949 views

Why was 50 chosen for the 50-move rule?

The reason for the 50-move rule, along with the triple-repetition rule is to make chess definitely finite. How did one arrive at the number 50? What would change if it was 40 or 60? Is the number 50 ...
12
votes
1answer
2k views

Are there endgames which could be forced wins if not for the 50-move rule?

Wikipedia's article on the fifty-move rule states: In the 20th century it was discovered that some positions of certain endgames can only be won in more than fifty moves (without a capture or a ...