how is blitz vs rapid defined here ?

natarka

How are Live Chess time controls defined here?

for instance a 10/0 game was categorized blitz but a 10/5 game was rapid

Is there a  Chess.com FAQ that answers stuff like this ? 

Katachrese

Yes: https://support.chess.com/customer/en/portal/articles/1444851-why-are-there-three-different-ratings-in-live-chess-

natarka

if that were true then why was the 10/5 game classified as Rapid?   Assuming 40 moves per game as suggested adds 3.3 minutes to the 10 standard minutes for a total time which is less than "Rapid rating - For games 15 minutes and longer"  as stated in the link provided.

Seems like Chess.com has changed the time controls or publish erroneous information ?

pjw65

Your're right, must have changed during the last 7 days. Rapid starts now at >10 minutes.

I did last week some Blitz with 10/7.

I wrote a bug report to staff.

natarka

I'm fine with it either way , I just think they should clarify what their time controls actually are.

maybe they are trying to harmonize with USCF time controls ?  that would make sense but I'm not sure what those are either ...

pjw65

Source: FIDE

Appendix A. Rapid chess

A.1

A ‘Rapid chess’ game is one where either all the moves must be completed in a fixed time of more than 10 minutes but less than 60 minutes for each player; or the time allotted plus 60 times any increment is of more than 10 minutes but less than 60 minutes for each player.

Appendix B. Blitz

B.1

A ‘blitz’ game is one where all the moves must be completed in a fixed time of 10 minutes or less for each player; or the allotted time plus 60 times any increment is 10 minutes or less.

 

There is no such thing as Bullet Chess in FIDE.

natarka

I think you've got it , now Chess.com should update their FAQ ?