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50 move rule

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earltony15

this rule means 50 moves per player without a capture; correct? or is it a total of 50 (25 each)? thanks

tbirdtird

its 50 moves without a capture or a pawn move.  a "move" is counted when both players have moved so it's 50 moves each.


likesforests

It becomes really important in endgames like Queen vs Rook, Queen vs Knight, and the Bishop and Knight checkmate where you know there's a win but unless you've studied them you may not be able to find it quickly enough.


TonightOnly
50 moves each without a capture or a pawn advancement. This is how moves are always referred to in chess. A game had only eight moves if white gets mated on black's eighth move.
earltony15
thanks for these explanations. 
joeyson
has this eer happened in GM games?
likesforests

Certainly, but less often. Below the master level, Q vs R draws 30% of the time. At the master level, Q vs R draws 20% of the time.


Fromper

Most often, in a GM game, if they can't find a mate in 50 moves, they realize it's not going to happen and agree to a draw before then. But even they play it out sometimes, if one of them thinks there might be an advantage to doing so.

 

--Fromper 


batgirl
Aren't there certain endgames that are exempt from the 50 move rule?
cheapciggies

Yes but shhh dont tell everyone.


BlueKnightShade
likesforests wrote:

Certainly, but less often. Below the master level, Q vs R draws 30% of the time. At the master level, Q vs R draws 20% of the time.


Is that really so? That is an amazingly high percentage.


likesforests

Yeah, per my 3.5 million game database for rating > 2100 and for rating >2400. Susan Polgar is an expert at the rook's defense and she's proven many GMs cannot beat her. But Q vs N is simple and completely won at the master level.


tbirdtird
likesforests wrote:

Certainly, but less often. Below the master level, Q vs R draws 30% of the time. At the master level, Q vs R draws 20% of the time.


There are a few "exception" positions in Queen Vs Rook where the Rook does have a forced draw but one would think this should happen less then 20% of the time...


tbirdtird
batgirl wrote: Aren't there certain endgames that are exempt from the 50 move rule?

I think "think" the 50 move rule was changed briefly, and then changed back again..I'm not sure maybe there are exceptions?  Anyone have a copy of the offical rule book?


BlueKnightShade
tbirdtird wrote:

Anyone have a copy of the offical rule book?


 http://www.fide.com/official/handbook.asp?level=EE1


delta5ply
how many adversarys know this edward
Poch2013
The fifty move rule can draw endgames which would objectively be losing for one player.
kezzerdrix
You really only need to worry about the 50 move rule for bishop knight checkmate endgame. There are some YouTube videos on how to do it well. I studied it just in case it ever happened to me but it’s pretty rare.