The algorithm for receiving a new PGN game: it looks at the event name and the year. Suppose it says

[Event "Chessgames Open"]
[EventDate "2017.05.03"]

The software will then look to see if the tournament name already has an entry with name="Chessgames Open" and year=2017.<*> If it already exists, then the game will be assigned to that tournament. If it doesn't a new record will be created and a new tournament ID is born and this game will be the first to be assigned to that.

Everything you noticed about tournaments are a consequence of that method, combined with the fact that admins can modify this data later.

For example: <some tournament have names but no games> — they used to have games but either an admin moved those games into a different tournament, or the editors as a whole put it in the Tournament Index for simply a better description of the event.

<tournament have games, but can't post any kibitz> — by default, you can't post to a tournament. It requires it to have homepage status and/or Tournament Index inclusion. As new games come into the database all the time this is their default status.

<were these tid pre-assigned, and just waiting for games to be filled in?> Not per se; when we first got a tournament for some event we make the record.

You can also ready see the benefits of the engine on the Opening Explorer and Similar Games, but the real fun will be when you get to suggest moves to games and get evaluations back. It also has a nice feature where it can analyze the end of the game to answer that perennial question, "What's the finish?"

We've already hobbled together a help section on the feature here: Premium Membership Help Page.

http://www.chessgames.com/perl/ches...

Can you put in a 'feature' that will ignore a whole forum/page.

Say another big flame war broke out, and I'll just use Bobby Fischer's page as example here.

I would like to not see Fischer's page on Recent Kibitzing Page

Or if another big debate broke out on Grand Prix 2015, and I want to block out that page a few days.

<chessgames.com: I know exactly what you mean, >

We have some built-in hooks to satisfy that kind of desire, like most of us know that Rogoff doesn't show up in the recent kibitzing, and little favors like that. But to make it completely invisible from all possible lists, that would be quite a trick.>

Honestly, it sounds like <WannaBe> wants to be pampered in his old age.

That is always the case. A human useful eval doesn't always=computer eval.

But it is a good feature on the OE.

I also found that in one var. there was a new move found by the computer.

Also, when the Opening of the Day comes around, we sometimes try to schedule a few 2-hour evals before it goes online at midnight.

<I also found that in one var. there was a new move found by the computer.> Those two-hour evals often come up with that. For example yesterday we had Ruy Lopez, Closed, Smyslov Defense (C93) found here:

Opening Explorer

The computer concluded 10.♗c2 is the best move, after 35 ply (2 hours), in spite of it never being played in 488 games. (Seems a little odd, since 10.♗c2 is so thematic in those type positions.)

Currently we're in the middle of a 24-hour evaluation of the starting position. The results of such a scan don't really mean much, but people find it amusing. What will be the very worst of the 20 opening moves? Does 1.b3 instantly equalize or does White retain a tiny advantage? Check back in about 10 hours and find out.

If one cannot learn or retain, then one should not be playing chess

That's exaggerating a little, imo, not giving calculation its rightful due.

* * * * *

I still think some of that processing power should be used to plow through interesting games and - like doing a blundercheck - dropping in alternative lines at points where the engine sees a much better line than that played.

When will you roll out the world championship page for Carlsen-Karjakin?

It's been over 6 months now, and the last one in the list is still Carlsen-Anand: