15086 Players currently online!
Man vs. Machine - good luck!
Turn-based games at any time!
Vote for the best move to win!
Do you have what it takes?
Sharpen your tactical vision!
Get advice and game insights!
Learn from top players & pros!
View millions of master games!
Your virtual chess coach!
Perfect your opening moves!
Test your skills vs. computer!
Find the right private coach!
Can you solve it each day?
Bring it all together!
Beginners, start here!
Make friends & play team games!
News from the world of chess!
Search all Chess.com members!
Find local clubs & events!
Who's the best of your friends?
Read what members are saying!
I recall several years ago that in B+R+K vs. R+K endings the 50 move rule was extended to 100 moves for this specific ending. Can this rule change be found anywhere here? This was a result of a computer showing a forced mate in about 60 moves. Thanks
I believe it was once extended to the 75 move rule, but it has since been changed back.
I recall several years ago that in B+R+K vs. R+K endings the 50 move rule was extended to 100 moves for this specific ending. Can this rule change be found anywhere here? Thanks
I'm pretty sure all those old ending "allowances" got changed again, to a standard 50 moves.
In fact it is a forced mate; why would the previous rule changed be abandoned? Does not compute! Excellent links from Prawn and chessisgood. Thanks guys!
In fact it is a forced mate; why would the previous rule changed be abandoned? Does not compute!
I think modern engines found quicker finishes and the extra moves were deemed superfluous.
There is even a "forced mate" in 223, according to tablebases (R+B vs 2N). The limit was at some time at 75 moves, then back to 50 again.
Is being self taught good or bad?
by SocialPanda a few minutes ago
7/24/2014 - Mate in 5
by ielosubmarine a few minutes ago
Ponziani: Impractical in non-computer Correspondence Chess?
by Pacifique a few minutes ago
PHOTOS and VIDEOS
by craftysusie 4 minutes ago
Don't checkmate the King
by Akatsuki64 9 minutes ago
How do you feel about players who win by cowardly queening a pawn
by ielosubmarine 10 minutes ago
Poker Chess Magic The Gathering Baccarat
by btickler 14 minutes ago
Does a subscription to this site get you...
by erik 16 minutes ago
Hou Yifan preparing to replace Judit Polgar as Women's #1?
by watcha 16 minutes ago
who is the best chess player of all time?
by SmyslovFan 21 minutes ago
Why Join | Chess Topics |
Help & Support |
© 2014 Chess.com
• Chess - English
We are working hard to make Chess.com available in over 70 languages. Check back over the year as we develop the technology to add more, and we will try our best to notify you when your language is ready for translating!