Is there a good way to search on the internet for game continuations
from a certain position? 

Some way to search by continuation from a FEN or from a PGN move
sequence? 

I've seen occasionally where someone will reference one or more games,
from chessgames.com for example, that were won from a certain position,
and I've wondered how they found the games.   Seems like it could be a good learning tool.

Thanks for any help.

Interesting question, AquaMan.  At that site (chessgames.com) you will receive all games in their database on exact moves entered, and transpositions.  For example: 1.e4 Nf6 starts as an Alekhine defence, but after 2.Nc3 e5, you will have the Vienna game.  I think their database is great for classical games (listed by year played) and games by lesser known players.

Kaniksu wrote: At that site (chessgames.com) you will receive all games in their database on exact moves entered, and transpositions.  For example: 1.e4 Nf6 starts as an Alekhine defence, but after 2.Nc3 e5, you will have the Vienna game. 

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 You can not enter a PGN move sequence anywhere in chessgames.com though and get back games that started with that sequence, is that right?  For example, search for all games that started with:

 

1. Nf3 Nf6 2. g3 d5 3. Bg2 Bf5 4. c4 e6 5. O-O Be7 6. b3 O-O 7. Bb2 Nbd7 8. d3 c6 9. Nbd2 h6 10. a3 a5 11. Ra2 Re8 12. Qa1 Bd6

 

Better would be the ability to search by postion (FEN), since the position might be arived at by many possible variations, so FEN would have a better chance of getting hits. 

?????why not put some picture,so i easly understanding

I used your example of chessgames.com.  There are no games in their database with the moves you have given (can't get blood out of a rock).  I implied the chessgames.com database is limited, although it finds games by position.  Perhaps you can try Chessbase- they have a very robust positional database.  Good luck.

Kaniksu, where do you enter PGN or FEN in the search at chessgames.com?  I only see fields like; year, player/s, opening.

 

I just today learned how to search a database for games by position using Fritz.  I  have to have the DB on my hard drive though.   I think I'm starting to get it.  People amass large collections of games on their hard drive for this purpose, I think.

Here's some directions for using Fritz to search for games that have a given position in them, from chessbase DBs on your hard drive.  I didn't write this, but it worked for me.

  

(A) First, open a database (File --> Open --> Database)

This will bring up the last database you happened to work with. Here's
where it might seem a bit confusing.  To open a different database, on
the screen that the above command invoked,

(B) Open a database file (File--> Open --> Database).  At first
glance, it might appear you're doing the same operation, but it's not.
The second "Open" (on the database panel) actually invokes Windows
Explorer and lets you select a *File* which contains a database.  

Now with your database open, return to the main Fritz window, shut off
the engine (Engine --> Switch Off Engine), start a new game and get to
the position of interest.  Then

(C)  (Edit --> Find position) will bring up your database window.  You
will get a small window in which you select which game to start
searching (normally 1) and Fritz should bring up a list of games where
the position occurred.