Well done! :)

Thank you very much. This is exactly what I needed.

Very nice - well done!!

Future versions of Rybka Aquarium will be heavily influenced by user requests.

sounds good :)

Good idea !

Is it possible to View to the contents of the P# and PrAan#.

Rgds
Hetman

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Tree utilities explained

I will try to explain the most important tree utilities.
With those you can do almost anything with trees.
Create subtrees, Delete subtrees, insert positions... etc.

First you need to run your  AquariumTreeUtils.exe

Now Select the Operations Tab and now i start explaining what each function does and what each field means.

EPD OPERATIONS

**Import EPD**

Goal:   Create a tree from an .epd file OR Append to a tree the positions from an epd file
Usage: There are 3 field to fill Input, Ouput and operation.EpdSource

Depending on goal we have

a) If you want to create a NEW tree: Input: blank  
                                                          Ouput: the name of the new tree 
                                   OperationEpdSource: The .epd file with the positions

b) If you want to Append to an existing tree  Input: name of the tree to be appended  
                                                                      Ouput: name of the tree to be appended 
                                               OperationEpdSource: The .epd file with the positions

*****Export EPD*****

Goal: To transform a tree to an .epd file
Usage: Just set   Input: the tree to be converted to epd and  operation.Destination : the name of the epd file . Leave Output :Blank

**Filter EPD**

Goal: to remove from an epd file all the positions that are present in an tree
Usage: Input: The tree to be used as a filter  Output: Not Used Operation.SourceEPD: The epd file will be filtered
OperationDestinationEPD: The resulting filtered EPD file Operations.PositionControl: Select if you want to remove the positions that are present in the epd file from the tree (default) or leave only those.

**DedupeEPD**
Goal: To remove double positions in an epd file
Usage:  Operation.SourceEpd : The Input Epd to be deduped  Operation.DestinationEpd: the resulting epd file , cleared of doubles. Everything else is left blank

TREE OPERATIONS

**Generate moves

Goal:  this is used always after creating a tree from an epd file (using importepd) to generate moves from position to position.
Usage: Input: The tree you want moves to be generated. Output : the output tree

**Join Trees

Goal:  To join trees.  A + B . You can also intersect trees A and B (that is produce a tree with only common positions)
Usage:
  Input: The First tree to be joined  (Tree A)
  Output: The result of the operation (Tree A+B)
  Operation.Attaching: You put here the second tree. The tree to be attached (Tree B)
  Operation.Positions: What to do with positions. Join will create a tree with all positions present in A and all positions in B (A+B). Intersect will output positions that are only present in both trees
The rest of the field are instructions on what to do with statistics, evaluations etc when joining (which to prefer... and so on)

**Subtract Trees

Goal: Remove from tree A the positions that are present in tree B. After the operation Trees A and B will not have common positions. So we do the A-B operation
Usage: Input : Tree A  Output: Tree A-B (the result)  Operation.Subtracted: Tree B

**Save from position

Goal: To create a subtree, starting from a given position
Usage:Input: the Main tree Output: the subtree to be created Operation.Position: The Fen of the position from which you want the subtree to start

**Multiple Minmax

Goal: When you append a list of epd positions to a tree, and those epd positions contain evaluations, you want the evaluations of those positions to be minimaxed (the score of the position to propagate to the root). So EVERY TIME you import an epd with analysis in a tree you MUST perform that operation so that scores are shown correctly on all leaves.
Usage: Input: The tree that we have appended the epd Output: The new tree to be created (or the same value as Input) operation.Positions: The epd file we have used to import to the tree which has all the new positions we added to the tree.

Should have been reading here first,
the first thing i did was convert  "huge" DB--
yes a  5 hr duh! this is a learning experience,
a lot of us computer challanged types have
a longer way to go then others,  at least
i don't have to convert it back!!

thanks for all the help, ...very nice...

how can i switch the tree in game mode? i'd like to use jeroen's book to get some kind of edge out of the opening & it'd be nice if i could cheat by seeing it displayed next to the board, but it's set to narrowbook by default & i'm not sure how to change it.

how do i set the # of cores used to analyze with in IDeA? id like to run some other processes right now but whenever i start analyzing with rybka 3 it uses 100% cpu.

edit-- seems setting the priority back to low does the trick for now, probably better than using less cores actually. still, if it's possible, could someone explain?

Very well done! Thank you.

> If I buy Aquarium 2010 now, will I have to buy a new copy after I change my computer?

No.

mmh, I can't really answer why this is happening, but a workaround may be to export the database to pgn in Chessbase.

i dont know if annotations have something that Aquarium does not recognize. Dont forget that reading the format is a result of "reverse engineering" so there might be cases that dont work correctly (although i did not hit one)
Save to pgn and import pgn.

Engine Competitions -> Create New Match, adjust the parameters to suit your needs and under game positions select Specific position.

What font are you using in your chess notation, also what gui?